Operation Manual Multiparameter Transmitter M400

Operation Manual Multiparameter Transmitter M400 Transmitter Multiparameter M400 52 121 378

Transmitter M400 2

Transmitter M400 3 Operation Manual Multiparameter Transmitter M400

Transmitter M400 4 Content 1 Introduction 9 2 Safety instructions 10 2.1 Definition of equipment and documentation symbols and designations 10 2.2 Correct disposal of te unit 11 2.3 Ex Classification 12 3 Unit overview 13 3.1 Overview 1/2DIN 13 3.2 Control / Navigation Keys 14 3.2.1 Menu Structure 14 3.2.2 Navigation keys 14 3.2.2.1 Navigating te menu tree 14 3.2.2.2 Escape 15 3.2.2.3 ENTER 15 3.2.2.4 Menu 15 3.2.2.5 Calibration mode 15 3.2.2.6 Info mode 15 3.2.3 Navigation of data entry fields 15 3.2.4 Entry of data values, selection of data entry options 15 3.2.5 Navigation wit u in Display 16 3.2.6 Save canges dialog 16 3.2.7 Security Passwords 16 3.2.8 Display 16 4 Installation instruction 17 4.1 Unpacking and inspection of equipment 17 4.1.1 Panel cutout dimensional information 1/2DIN models 17 4.1.2 Installation procedure 18 4.1.3 Assembly 1/2DIN version 18 4.1.4 1/2DIN version Dimension drawings 19 4.1.5 1/2DIN version Pipe mounting 19 4.2 Connection of power supply 20 4.2.1 Housing (wall mount) 20 4.3 Connector PIN definition 21 4.3.1 TB1 and TB2 21 4.3.2 TB3 Analog resistive 2-e conductivity sensors 21 4.3.3 TB3 Analog resistive 4-e conductivity sensors 22 4.3.4 TB3 Analog inductive conductivity sensors 22 4.3.5 TB3 Analog ph / ORP sensors 23 4.3.6 TB3 Analog ISFET sensors 23 4.3.7 TB3 Analog oxygen sensors 24 4.3.8 TB3 Analog dissolved carbon dioxide sensors 24 4.3.9 TB4 ISM (digital) sensors for ph, conductivity and oxygen 25 4.4 Connection of ISM (digital) sensors 26 4.4.1 Connection of ISM sensors for ph/orp, Cond 4-e and amperometric oxygen measurement 26 4.4.2 TB4 AK9 cable assignment 26 4.4.3 Connection of ISM sensor for optical oxygen measurement 27 4.4.4 TB4 Optical DO sensor cable assignment 27 4.5 Connection of analog sensors 28 4.5.1 Connection of analog sensor for ph/orp 28 4.5.2 VP cable assignment for ph/orp sensor 29 4.5.3 TB3 Typical wiring for analog ph/orp sensor 30 4.5.3.1 Example 1 30 4.5.3.2 Example 2 31 4.5.3.3 Example 3 32 4.5.3.4 Example 4 33 4.5.4 Connection of analog ISFET sensor 34 4.5.5 TB3 Typical wiring for analog ISFET sensor 35 4.5.6 Connection of analog sensor for amperometric oxygen measurement 36 4.5.7 TB3 Typical wiring for analog sensor for amperometric oxygen measurement 37 4.5.8 Connection of analog sensor for dissolved carbon dioxide 38 4.5.9 TB3 Typical wiring for analog dissolved carbon dioxide sensor 39

Transmitter M400 5 5 Placing transmitter in, or out, of service 40 5.1 Placing transmitter in service 40 5.2 Placing transmitter out of service 40 6 Quick Setup 41 7 Sensor Calibration 42 7.1 Enter Calibration Mode 42 7.2 Conductivity calibration for two- or four-electrode sensors 43 7.2.1 One-point sensor calibration 44 7.2.2 Two-point sensor calibration (four electrode sensors only) 44 7.2.3 Process Calibration 45 7.3 Conductivity calibration for inductive sensors 46 7.3.1 Zero-point calibration 47 7.3.2 One-point slope calibration 47 7.3.3 Process calibration 48 7.4 Calibration of amperometric oxygen sensors 48 7.4.1 One-point calibration for amperometric oxygen sensors 48 7.4.2 Process calibration for amperometric oxygen sensors 49 7.5 Calibration of optical oxygen sensors 50 7.5.1 One-point calibration for optical oxygen sensors 50 7.5.1.1 Auto mode 51 7.5.1.2 Manual mode 51 7.5.2 Two-Point sensor calibration 51 7.5.2.1 Auto mode 52 7.5.2.2 Manual mode 52 7.5.3 Process calibration 53 7.6 ph calibration 54 7.6.1 One point calibration 54 7.6.1.1 Auto mode 54 7.6.1.2 Manual Mode 55 7.6.2 Two-point calibration 55 7.6.2.1 Auto Mode 56 7.6.2.2 Manual Mode 56 7.6.3 Process calibration 57 7.6.4 mv calibration (only for analog sensors) 58 7.6.5 ORP calibration (only for ISM sensors) 58 7.7 ISFET calibration 59 7.7.1 One-point calibration 59 7.7.2 Two-point calibration 59 7.7.3 Process calibration 59 7.7.4 mv calibration 60 7.8 Dissolved carbon dioxide calibration 60 7.8.1 One point calibration 60 7.8.1.1 Auto Mode 60 7.8.1.2 Manual Mode 61 7.8.2 Two-point calibration 61 7.8.2.1 Auto Mode 62 7.8.2.2 Manual Mode 62 7.8.3 Process calibration 63 7.9 Sensor temperature calibration (only for analog sensors) 63 7.9.1 One-Point sensor temperature calibration 64 7.9.2 Two-Point sensor temperature calibration 64 7.10 Edit sensor calibration constants (only for analog sensor) 65 7.11 Sensor verification 65 8 Configuration 66 8.1 Enter configuration mode 66 8.2 Measurement 66 8.2.1 Cannel Setup 66 8.2.1.1 Analog sensor 67 8.2.1.2 ISM sensor 67 8.2.1.3 Save canges of te cannel setup 67 8.2.2 Temperature source (only for analog sensors) 68

Transmitter M400 6 8.2.3 Parameter related settings 68 8.2.3.1 Conductivity temperature compensation 69 8.2.3.2 ph/orp parameters 70 8.2.3.3 ISFET parameters 71 8.2.3.4 Parameters for oxygen measurement based on amperometric sensors 71 8.2.3.5 Parameters for oxygen measurement based on optical sensors 72 8.2.3.6 Adjusting sampling rate for optical sensors 73 8.2.3.7 LED Mode 73 8.2.3.8 Dissolved carbon dioxide parameters 74 8.2.4 Set averaging 75 8.3 Analog outputs 76 8.4 Set points 77 8.5 Alarm / Clean 78 8.5.1 Alarm 78 8.5.2 Clean 80 8.6 ISM set up (available for ph and oxygen ISM sensors) 80 8.6.1 Sensor monitoring 80 8.6.2 CIP Cycle Limit 82 8.6.3 SIP Cycle Limit 83 8.6.4 Autoclaving Cycle Limit 83 8.6.5 Reset ISM counter / timer 84 8.7 Display 85 8.7.1 Measurement 85 8.7.2 Resolution 85 8.7.3 Backligt 86 8.7.4 Name 86 8.7.5 ISM sensor monitoring (available wen ISM sensor connected) 86 8.8 Hold analog outputs 87 9 System 88 9.1 Set Language 88 9.2 USB 88 9.3 Passwords 89 9.3.1 Canging passwords 89 9.3.2 Configuring menu access for operator 89 9.4 Set / Clear lockout 90 9.5 Reset 90 9.5.1 Reset system 90 9.5.2 Reset meter calibration 90 9.5.3 Reset analog calibration 91 9.5.4 Reset sensor calibration (for optical sensors only) 91 9.6 Set date & time 91 10 PID setup 92 10.1 Enter PID setup 93 10.2 PID auto / manual 93 10.3 Mode 94 10.3.1 PID mode 94 10.4 Tune parameters 95 10.4.1 PID assignment & tuning 96 10.4.2 Setpoint & deadband 96 10.4.3 Proportional limits 96 10.4.4 Corner points 96 10.5 PID display 96 11 Service 97 11.1 Diagnostics 97 11.1.1 Model / Software revision 97 11.1.2 Digital input 98 11.1.3 Display 98 11.1.4 Keypad 98 11.1.5 Memory 98 11.1.6 Set Relay 99 11.1.7 Read relays 99 11.1.8 Set analog outputs 99 11.1.9 Read analog outputs 99 11.1.10 0 2 Optical 100

Transmitter M400 7 11.2 Calibrate 100 11.2.1 Calibrate meter (only for cannel A) 100 11.2.1.1 Temperature 100 11.2.1.2 Current 101 11.2.1.3 Voltage 102 11.2.1.4 Rg diagnostic 102 11.2.1.5 Rr diagnostics 103 11.2.1.6 Calibrate analog 103 11.2.2 Calibrate unlock 104 11.3 Tec Service 104 12 Info 105 12.1 Messages 105 12.2 Calibration data 105 12.3 Model / Software revision 106 12.4 ISM sensor info (available wen ISM sensor connected) 106 12.5 ISM sensor diagnostics (available wen ISM sensor connected) 106 13 Maintenance 109 13.1 Front panel cleaning 109 14 Troublesooting 110 14.1 Canging te fuse 110 14.2 Cond (resistive) Error messages / Warning- and Alarm list for analog sensors 111 14.3 Cond (resistive) Error messages / Warning- and Alarm list for ISM sensors 111 14.4 Cond (inductive) Error messages / Warning- and Alarm list 111 14.5 ph Error messages / Warning- and Alarm list 112 14.6 Amperometric O 2 Error messages / Warning- and Alarm list 113 14.7 Optical O 2 Error messages / Warning- and Alarm list 113 14.8 ISFET Error messages / Warning- and Alarm list 114 14.9 Dissolved carbon dioxide Error messages / Warning- and Alarm list 114 14.10 Warning- and Alarm indication on te display 115 14.10.1 Warning indication 115 14.10.2 Alarm indication 115 15 Accessories and Spare Parts 116 16 Specifications 117 16.1 General specifications 117 16.2 Electrical specifications 121 16.3 Mecanical specifications 121 16.4 Environmental specifications 122 16.5 Ex Classification 122 17 Default table 123 18 Warranty 126 19 Buffer tables 127 19.1 Mettler-9 127 19.2 Mettler-10 127 19.3 NIST Tecnical Buffers 128 19.4 NIST standard buffers (DIN and JIS 19266: 2000 01) 128 19.5 Hac buffers 129 19.6 Ciba (94) buffers 129 19.7 Merck Titrisole, Riedel-de-Haën Fixanale 130 19.8 WTW buffers 130

Transmitter M400 8

Transmitter M400 9 1 Introduction Statement of Intended Use Te M400 multiparameter transmitter is a single- cannel online process instrument for measuring various properties of fluids and gases. Tese include Conductivity, Dissolved Oxygen, Dissolved Carbon Dioxide (CO 2 ) and ph / ORP. Te transmitter andles also ISFET sensors used for ph measurement. Te M400 is available in tree different levels. Te level indicates te amount of measurement parameters wic can be covered. Te parameters are indicated on te label on te back of te system. Te M400 is a unique mixed mode transmitter wo can andle conventional sensors (analog) or ISM sensors (digital). M400 parameter fit guide Parameter Type 1 Type 1 Cond Ind Type 2 Type 3 Analog ISM Analog ISM Analog ISM Analog ISM ph / ORP ph (ISFET) Conductivity 2-e Conductivity 4-e Conductivity inductive Dissolved oxygen ppm / ppb / / / / Oxygen in gas ppm / ppb / / / / Oxygen optical ppm / ppb / / Dissolved Carbon Dioxide A large four line backlit Liquid Crystal Display conveys measuring data and setup information. Te menu structure allows te operator to modify all operational parameters by using keys on te front panel. A menu-lockout feature, wit password protection, is available to prevent te unautorized use of te meter. Te M400 Multiparameter transmitter can be configured to use its four analog and / or six relay outputs for process control. Te M400 Multiparameter transmitter is equipped wit a USB communication interface. Tis interface provides real-time data output and complete instrument configuration capabilities for central monitoring via Personal Computer (PC). Tis description corresponds to te firmware release, version 1.4 for te transmitter M400 Type 1, M400 Type 2 and M400 Type 3 as well as to te firmware release, version 1.1 for te transmitter M400 Type 1 Cond Ind. Canges are taking place constantly, witout prior notification.

Transmitter M400 10 2 Safety instructions Tis manual includes safety information wit te following designations and formats. 2.1 Definition of equipment and documentation symbols and designations a a a WARNING: POTENTIAL FOR PERSONAL INJURY. CAUTION: possible instrument damage or malfunction. NOTE: Important operating information. On te transmitter or in tis manual text indicates: Caution and / or oter possible azard including risk of electric sock (refer to accompanying documents) Te following is a list of general safety instructions and warnings. Failure to adere to tese instructions can result in damage to te equipment and / or personal injury to te operator. Te M400 Transmitter sould be installed and operated only by personnel familiar wit te transmitter and wo are qualified for suc work. Te M400 Transmitter must only be operated under te specified operating conditions (see section 16 Specifications ). Repair of te M400 Transmitter must be performed by autorized, trained personnel only. Wit te exception of routine maintenance, cleaning procedures or fuse replacement, as described in tis manual, te M400 Transmitter must not be tampered wit or altered in any manner. Mettler-Toledo accepts no responsibility for damage caused by unautorized modifications to te transmitter. Follow all warnings, cautions, and instructions indicated on and supplied wit tis product. Install equipment as specified in tis instruction manual. Follow appropriate local and national codes. Protective covers must be in place at all times during normal operation. If tis equipment is used in a manner not specified by te manufacturer, te protection provided by it against azards may be impaired. WARNINGS: Installation of cable connections and servicing of tis product require access to sock azard voltage levels. Main power and relay contacts wired to separate power source must be disconnected before servicing. Switc or circuit breaker sall be in close proximity to te equipment and witin easy reac of te OPERATOR; it sall be marked as te disconnecting device for te equipment. Main power must employ a switc or circuit breaker as te disconnecting device for te equipment. Electrical installation must be in accordance wit te National Electrical Code and / or any oter applicable national or local codes.

Transmitter M400 11 NOTE: RELAY CONTROL ACTION te M400 transmitter relays will always de-energize on loss of power, equivalent to normal state, regardless of relay state setting for powered operation. Configure any control system using tese relays wit fail-safe logic accordingly. NOTE: PROCESS UPSETS Because process and safety conditions may depend on consistent operation of tis transmitter, provide appropriate means to maintain operation during sensor cleaning, replacement or sensor or instrument calibration. NOTE: Tis is a 4-wire-product wit an active 4 20 ma analog output. Please do not supply to Pin1 Pin6 of TB2. 2.2 Correct disposal of te unit Wen te transmitter is finally removed from service, observe all local environmental regulations for proper disposal.

Transmitter M400 12 2.3 Ex Classification NOTE: Te Ex classification is valid for te transmitters M400 Type 1, M400 Type 2 and M400 Type 3. For te transmitter M400 Type 1 Cond Ind te approvals are in preparation. Type plate Special condition(s) X 1. Te strengt of te device s casing corresponds only to te low degree of mecanical risk and must terefore be additionally protected by suitable measures against mecanical impact effect. 2. Due to te risk of electrostatic carge, te device may only be cleaned wit a damp clot. Tis instruction is fitted on te device wit a separate warning sield stating te following: WARNING CLEAN PLASTIC PARTS WITH MOIST CLOTH ONLY. 3. In accordance wit guideline 94/9/EG separately certified cable and buses in addition to sealing plugs/caps may be used. 4. Unused openings must be closed wit te sealing plugs/caps sown under point 3. NOTE: 1. Te transmitter M400 Type 1, M400 Type 2, M400 Type 3 is a device of device type II category 3G in accordance wit RL 94/9/EC (ATEX 95) appendix I, wic may be used in accordance wit RL 99/32/EG (ATEX 137) in zone 2 and in te gas groups IIA, IIB and IIC, wic are explosive because of inflammable materials in te range of temperature classes T1 to T4. During use/installation, te requirements in accordance wit EN 60079-14 must be complied wit. 2. Te permissible ambient temperature range is 10 C to + 50 C.

Transmitter M400 13 3 Unit overview Te M400 models are available in 1/2DIN case size. Te M400 models provide an integral IP65 ousing for wall- or pipe mount. 3.1 Overview 1/2DIN 1 5.90 [150] M300 5.90 [150] Menu ESC Cal 3 2 Info Enter 5 6 7 8 9 4 1: Hard Polycarbonate case 2: Five Tactile-Feedback Navigation Keys 3: Four-line LCD Display 4: Power Supply Terminals 5: USB Interface Port 6: Relay Output Terminals 7: Analog Output / Digital Input Terminals 8: Sensor Input Terminals (analog TB, digital TB) 9: List of parameters to be measured wit tis unit

Transmitter M400 14 3.2 Control / Navigation Keys 3.2.1 Menu Structure Below is te structure of te M400 menu tree: Measurement Mode M400 Menu Cal Info Quick Setup Configure System PID Setup Service Messages ISM Sensor Info* Calibration Data ISM Diagnostics* Model/Software Revision Cannel Select Measurement Set Language PID A/M Diagnostics Output Analog Outputs USB Tune Parameters Calibrate Set Points Set Points Passwords Mode Tec Service Alarm/Clean Set/Clear Lockout PID Display Setup ISM Setup* Reset Display Set Date & Time Hold Outputs * Only available in combination wit ISM sensors 3.2.2 Navigation keys ESC Menu Cal Info Enter 3.2.2.1 Navigating te menu tree Enter te desired main Menu branc wit te c or keys. Use te and. keys to navigate troug te selected Menu branc. NOTE: In order to back up one menu page, witout escaping to te measurement mode, move te cursor under te UP Arrow caracter (u) at te bottom rigt of te display screen and press [ENTER].

Transmitter M400 15 3.2.2.2 Escape Press te and c key simultaneously (escape) to return to te Measurement mode. 3.2.2.3 ENTER Use te e key to confirm action or selections. 3.2.2.4 Menu Press te key to access te main Menu. 3.2.2.5 Calibration mode Press te c key to enter Calibration mode. 3.2.2.6 Info mode Press te. key to enter Info mode 3.2.3 Navigation of data entry fields Use te c key to navigate forward or te key to navigate backwards witin te cangeable data entry fields of te display. 3.2.4 Entry of data values, selection of data entry options Use te key to increase or te. key to decrease a digit. Use te same keys to navigate witin a selection of values or options of a data entry field. NOTE: Some screens require configuring multiple values via te same data field (ex: configuring multiple setpoints). Be sure to use te c or key to return to te primary field and te or. key to toggle between all configuration options before entering to te next display screen.

Transmitter M400 16 3.2.5 Navigation wit u in Display If a u is displayed on te bottom rigt and corner of te display, you can use te c or te key to navigate to it. If you click [ENTER] you will navigate backwards troug te menu (go back one screen). Tis can be a very useful option to move back up te menu tree witout aving to exit into te measuring mode and re-enter te menu. 3.2.6 Save canges dialog Tree options are possible for te Save canges dialog: Yes & Exit (Save canges and exit to measuring mode), Yes & u (Save canges and go back one screen) and No & Exit (Don t save canges and exit to measuring mode). Te Yes & u option is very useful if you want to continue configuring witout aving to re-enter te menu. 3.2.7 Security Passwords Te M400 transmitter allows a security lock-out of various menus. If te security lock-out feature of te transmitter as been enabled, a security password must be entered to allow access to te menu. See section 9.3 for more information. 3.2.8 Display NOTE: In te event of an alarm or oter error condition te M400 Transmitter will display a flasing a in te upper rigt corner of te display. Tis symbol will remain until te condition tat caused it as been cleared. NOTE: During calibrations (Cannel A), clean, Digital In wit Analog Output / Relay / USB in Hold state, a flasing H (Hold) will appear in te upper left corner of te display. During calibration on Cannel B, a flasing H (Hold) will appear in te second line. Cange to B and flas. Tis symbol will remain for 20 sec., after end of calibration. Tis symbol will remain for 20 seconds until after te calibration or clean is completed. Tis symbol will also disappear wen Digital In is deactivated. NOTE: Cannel A (A is sown on te left side of te display) indicates tat a conventional sensor is connected to te transmitter. Cannel B (B is sown on te left side of te display) indicates, tat an ISM Sensor is connected to te transmitter. Te M400 is a single input cannel transmitter, and only one sensor can be connected at te same time.

Transmitter M400 17 4 Installation instruction 4.1 Unpacking and inspection of equipment Inspect te sipping container. If it is damaged, contact te sipper immediately for instructions. Do not discard te box. If tere is no apparent damage, unpack te container. Be sure all items sown on te packing list are present. If items are missing, notify Mettler-Toledo immediately 4.1.1 Panel cutout dimensional information 1/2DIN models 1/2DIN Model transmitters are designed wit an integral rear cover for stand-alone wall mount installation. Te unit may also be wall mounted using te integral rear cover. See installation instructions in Section 4.1.2. Below are cut-out dimensions required by te 1/2DIN models wen mounted witin a flat panel or on a flat enclosure door. Tis surface must be flat and smoot. Textured or roug surfaces are not recommended and may limit te effectiveness of te gasket seal provided. 5.39 +0.02 0.00 [137 +0.5 ] 0.0 5.39 +0.02 0.00 [137 +0.5 ] 0.0 PANEL CUT-OUT Optional ardware accessories are available tat allow for panel- or pipe-mount. Refer to Section 15 for ordering information.

Transmitter M400 18 4.1.2 Installation procedure General: Orient te transmitter so tat te cable grips face downward. Wiring routed troug te cable grips sall be suitable for use in wet locations. In order provide IP65 enclosure ratings, all cable glands must be in place. Eac cable gland must be filled using a cable, or suitable Cable Gland Hole Seal. For Wall Mount: Remove rear cover from front ousing. Start by unscrewing te four screws located on te face of te transmitter, in eac corner. Tis allows te front cover to swing away from te rear ousing. Remove te inge-pin by squeezing te pin from eac end. Tis allows te front ousing to be removed from te rear ousing Mount rear ousing to wall. Secure mounting kit to te M400 according to te supplied instructions. Attac to wall using appropriate mounting ardware for wall surface. Be sure it is level and securely fastened and te installation aderes to any and all clearance dimensions required for transmitter service and maintenance. Orient te transmitter so tat te cable grips are facing downward. Replace te front ousing to te rear ousing. Securely tigten te rear-cover screws to ensure tat IP65 enclosure environmental rating is maintained. Te unit is ready to be wired. For Pipe Mount: Use only manufacturer-supplied components for pipe-mounting te M400 transmitter and install per te supplied instructions. See section 15 for ordering information. 4.1.3 Assembly 1/2DIN version 1 2 3 1: 3 Pg 13.5 cable glands 2: 2 plastic plugs 3: 4 screws

Transmitter M400 19 4.1.4 1/2DIN version Dimension drawings 150 mm/5.9" 116 mm/4.57" 29 mm 1.14" 150 mm/5.9" 6.5 mm 0.256" 136 mm/5.35" 42 mm 1.65" 84 mm 3.31" 29 mm 1.14" 35 mm/ 1.38" 90 mm/3.54" 80 mm/3.15" 75 mm/2.95" 6 mm/ 0.236" 90 mm/3.54" 138 mm ± 0.5 mm 5.43" ± 0.02" 138 mm ± 0.5 mm 5.43" ± 0.02" 4.1.5 1/2DIN version Pipe mounting 40... 60 mm 1.57... 2.36"

Transmitter M400 20 4.2 Connection of power supply All connections to te transmitter are made on te rear panel of all models. a Be sure power to all wires is turned off before proceeding wit te installation. Hig voltage may be present on te input power wires and relay wires. A two-terminal connector on te rear panel of all M400 models is provided for power connection. All M400 models are designed to operate from a 20 30 VDC or a 100 to 240 VAC power source. Refer to specifications for power requirements and ratings and size power wiring accordingly (AWG 14, wire cross-section 2.5 mm 2 ). Te terminal block for power connections is labeled Power on te rear panel of te transmitter. One terminal is labeled N for te Neutral wire and te oter + L for te Line (or Load) wire. Te terminals are suitable for single wires and flexible leads up to 2.5 mm 2 (AWG 14). Tere is no eart ground terminal on te transmitter. For tis reason te internal power wiring witin te transmitter is double insulated and te product label designates tis using te d symbol. 4.2.1 Housing (wall mount) 2 1 1: Connection of power supply 2: Terminal for sensors

Transmitter M400 21 4.3 Connector PIN definition 4.3.1 TB1 and TB2 Power connections are labeled N for Neutral and + L for Line, for 100 to 240 VAC or 20 30 VDC. TB2 for 1 2 DIN 1 AO1+ 2 AO1 /AO2 3 AO2+ 4 AO3+ 5 AO3 /AO4 6 AO4+ 7 DI1+ 8 DI1 /DI2 9 DI2+ 1 NO1 2 COM1 3 NC1 4 NO2 5 COM2 6 NC2 7 COM5 TB1 1 14 1 9 1 9 1 9 TB2 TB3 TB4 TB1 for 1 2 DIN 8 NC5 9 COM6 10 NO6 11 NO3 12 COM3 13 NO4 14 COM4 NO: normally open (contact open if un-actuated). NC: normally closed (contact closed if un-actuated). AO: Analog Output DI: Digital Input NOTE: Tis is a 4-wire-product wit an active 4 20 ma analog output. Please do not supply to Pin1 Pin6 of TB2. 4.3.2 TB3 Analog resistive 2-e conductivity sensors Pin no. Sensor wire color* Function 1 wite Cnd inner 1 2 wite / blue Cnd outer 1 3 blue Cnd inner 2 4 black Cnd outer 2 / Sield 5 not used 6 bare sield RTD ret / GND 7 red RTD sense 8 green RTD 9 +5 V * Transparent not connected. Terminal 4 and 6 are internally connected, eiter terminal can be used to connect a wire.

Transmitter M400 22 4.3.3 TB3 Analog resistive 4-e conductivity sensors Pin no. Sensor wire color* Function 1 wite Cnd inner 1 2 wite / blue Cnd outer 1 3 blue Cnd inner 2 4 black Cnd outer 2 / Sield 5 not used 6 bare sield RTD ret / GND 7 red RTD sense 8 green RTD 9 +5V * Transparent not connected. Terminal 4 and 6 are internally connected, eiter terminal can be used to connect a wire. 4.3.4 TB3 Analog inductive conductivity sensors Pin no. Sensor wire color InPro 7250 ST / PFA Sensor wire color InPro 7250 HT Function 1 Coax inner/transparent Coax inner/transparent receive i 2 red yellow receive lo 3 green/yellow green/yellow sield/gnd 4 brown violet send lo 5 blue black send i 6 wite wite RTD ret/gnd 7 grey grey RTD sense 8 green green RTD 9 not used Terminal 4 and 6 are internally connected, eiter terminal can be used to connect a wire.

Transmitter M400 23 4.3.5 TB3 Analog ph / ORP sensors ph / ORP sensors use 52 300 1XX series VP cables, or 10 001 XX02 series AS9 cables (ORP only). Pin no. Sensor wire color Function 1 Coax inner / transparent Glass 2 not used 3* Coax sield / red Reference 4* green / yellow, blue Solution GND / Sield 5 not used 6 wite RTD ret / GND 7 RTD sense 8 green RTD 9 +5 V grey (no connection) Take care tat AS9 cable and AK9 cable ave te same configuration. So, if you want AS9 cable wit InPro 2000 and AK9 cable wit InPro 3030 connect to TB3, do it as DPAS sensor. Pin no. 1: Sensing (electrode). Pin no. 3: Reference (Install jumper 3 to 4). Terminal 4 and 6 are internally connected, eiter terminal can be used to connect a wire. NOTE: * Install Jumper 3 to 4 wen used witout Solution Ground. 4.3.6 TB3 Analog ISFET sensors ISFET sensors use 52 300 40X series VP cables Pin no. Sensor wire color Function 1 Coax inner / pink FET 2 not used 3 yellow Reference 4 green / yellow GND / Sield 5 not used 6 wite RTD ret / GND 7 not used 8 grey RTD 9 brown +5 V NOTE: Jumper 3 to 4 as to be installed Terminal 4 and 6 are internally connected, eiter terminal can be used to connect a wire.

Transmitter M400 24 4.3.7 TB3 Analog oxygen sensors Tese sensors use 52 300 1XX series VP cables. Pin no. Sensor wire color Function 1* not used 2 Coax Sield / red Anode 3* not used 4* green / yellow Sield / GND 5 Coax Inner / transparent Catode 6 wite, grey Temperature, Guard 7 not used 8 green Temperature 9 +5 V Blue wire not used. Terminal 4 and 6 are internally connected, eiter terminal can be used to connect a wire. NOTE: * Install jumper (supplied) 1 to 3 to 4 wen using InPro 6900 (ppb measurement). 4.3.8 TB3 Analog dissolved carbon dioxide sensors Dissolved carbon dioxide sensors use 52 300 1XX series VP cables. Pin no. Sensor wire color Function 1 Coax inner / transparent Glass 2 not used 3 Coax sield / red Reference 4 green / yellow GND / Sield 5 not used 6 wite RTD ret / GND 7 not used 8 green RTD 9 +5 V grey (no connection) NOTE: Jumper 3 to 4 as to be installed Terminal 4 and 6 are internally connected, eiter terminal can be used to connect a wire.

Transmitter M400 25 4.3.9 TB4 ISM (digital) sensors for ph, conductivity and oxygen Te wiring of te digital 9 terminal connectors is: Optical Oxygen ph, amp. Oxygen, Cond 4-e Pin no. Function Sensor wire color Sensor wire color 1 24 VDC brown 2 GND (24 VDC) black 3 1-Wire transparent (cable core) 4 GND (5 VDC) grey and yellow red (sield) 5 6 GND (5 VDC) 7 RS485-B blue 8 RS485-A wite 9 5 VDC ISM digital sensors can only be connected on TB4. Analog sensors can only be connected on TB3.

Transmitter M400 26 4.4 Connection of ISM (digital) sensors 4.4.1 Connection of ISM sensors for ph/orp, Cond 4-e and amperometric oxygen measurement A B NOTE: Connect te sensor and screw te plug ead clockwise (and tigt). 4.4.2 TB4 AK9 cable assignment A: 1-wire data (transparent) B: Ground/sield

Transmitter M400 27 4.4.3 Connection of ISM sensor for optical oxygen measurement A D E F B C A B C D E F NOTE: Connect te Sensor and screw te plug ead clockwise (and tigt). 4.4.4 TB4 Optical DO sensor cable assignment 9 1: 24 VDC 8 7 6 5 4 3 2 1 2: GND 24 VDC 3: Not used 4: GND (5 VDC) 5: Not used 6: Not used 7: RS 485 B 8: RS 485 A 9: Not used wite blue gray black brown yellow

Transmitter M400 28 4.5 Connection of analog sensors 4.5.1 Connection of analog sensor for ph/orp A F B C D E A B C D E F S NOTE: Cable lengts > 20 m can worsen te response during ph measurement. Be sure to observe te sensor instruction manual.

Transmitter M400 29 4.5.2 VP cable assignment for ph/orp sensor A transparent B red Glass electrode Ref. electrode C gray D blue E wite F green S green/yellow T3 Solution ground T1 T2 Outer sield C = 220 nf T1 / T2: Temperature probe for 2-wire connection T3: Additional connection for temperature probe (3-wire connection)

Transmitter M400 30 4.5.3 TB3 Typical wiring for analog ph/orp sensor 4.5.3.1 Example 1 ph measurement witout Solution Ground 9 8 7 6 5 4 3 Jumper 2 1 yellowgreen Cable green wite red transparent Temperature probe Combination ph electrode NOTE: Jumper terminals 3 and 4. Wire colors only valid for connection wit VP cable; blue and grey not connected. 1: Glass 2: Not used 3: Reference 4: Sield / GND 5: Not used 6: Solution GND / RTD ret 7: Not used 8: RTD 9: Not used

Transmitter M400 31 4.5.3.2 Example 2 ph measurement wit Solution Ground 9 8 7 6 5 4 3 2 1 yellowgreen green wite blue red transparent Cable Temperature probe Combination ph electrode wit RTD and SG NOTE: Wire colors only valid for connection wit VP cable, grey not connected. 1: Glass 2: Not used 3: Reference 4: Sield / Solution GND 5: Not used 6: GND / RTD ret 7: Not used 8: RTD 9: Not used

Transmitter M400 32 4.5.3.3 Example 3 ORP (redox) measurement (temperature optional) 9 8 7 6 5 4 3 Jumper 2 1 Cable Reference electrode Sensing electrode Temperature probe ORP electrode NOTE: Jumper terminal 3 and 4 1: Platinum 2: Not used 3: Reference 4: Sield / GND 5: Not used 6: RTD ret 7: Not used 8: RTD 9: Not used

Transmitter M400 33 4.5.3.4 Example 4 ORP measurement wit ph Solution ground electrode (e.g. InPro 3250 SG, InPro 4800 SG). 9 8 7 6 5 4 3 Jumper yellowgreen green wite blue red transparent 2 1 Not connected Cable Temperature probe Combination ph electrode wit RTD and SG NOTE: Jumper terminal 3 and 4 1: Platinum 2: Not used 3: Reference 4: Sield / GND 5: Not used 6: RTD ret 7: Not used 8: RTD 9: Not used

Transmitter M400 34 4.5.4 Connection of analog ISFET sensor NOTE: Be sure to observe te sensor instruction manual.

Transmitter M400 35 4.5.5 TB3 Typical wiring for analog ISFET sensor Sensor connection to M400 Type 1, Type 2, Type 3 9 8 7 6 wite grey brown green/ yellow yellow pink 1 2 3 4 5 InPro 3300 ISFET sensor NOTE: Jumper Terminal 3 and 4 as to be installed. M400 connector: 1: FET 2: not used 3: Reference 4: Sield / GND 5: not used 6: RTD ret / GND 7: not used 8: RTD 9: +5 VDC

Transmitter M400 36 4.5.6 Connection of analog sensor for amperometric oxygen measurement A F B C D E A B C D E F S NOTE: Be sure to observe te sensor instruction manual.

Transmitter M400 37 4.5.7 TB3 Typical wiring for analog sensor for amperometric oxygen measurement 9 8 7 6 5 4 3 2 red transparent yellow/green 1 blue green wite gray NOTE: Wire colors only valid for connection wit VP cable, blue not connected. NOTE: Install jumper (supplied) 1 to 3 to 4 wen using InPro 6900 (ppb measurement). M400 connector: 1: Not used 2: Anode 3: Not used 4: Sield / GND 5: Catode 6: NTC ret, Guard 7: Not used 8: NTC 2 9: Not used

Transmitter M400 38 4.5.8 Connection of analog sensor for dissolved carbon dioxide A F B C D E A B C D E F S NOTE: Cable lengts > 20 m can worsen te response during dissolved carbon dioxide measurement. Be sure to observe te sensor instruction manual.

Transmitter M400 39 4.5.9 TB3 Typical wiring for analog dissolved carbon dioxide sensor 9 8 7 6 5 4 3 Jumper 2 1 Cable Reference electrode Sensing electrode CO 2 electrode Temperature probe NOTE: Jumper Terminal 3 and 4 as to be installed. M400 connector: 1: Glass 2: not used 3: Reference 4: Sield / GND 5: not used 6: RTD ret / GND 7: not used 8: RTD 9: not used

Transmitter M400 40 5 Placing transmitter in, or out, of service 5.1 Placing transmitter in service a After connecting te transmitter to power supply circuit, it will be active as soon as te circuit is powered. 5.2 Placing transmitter out of service First disconnect te unit from te main power source, ten disconnect all remaining electrical connections. Remove te unit from te wall / panel. Use te installation instruction in tis manual as reference for dis-assembling mounting ardware. All transmitter settings stored in memory are non volatile.

Transmitter M400 41 6 Quick Setup (PATH: Menu / Quick Setup) Select Quick Setup and press te [ENTER] key. Enter te security code if necessary (see section 9.3 Passwords ) Note: Please find te complete description of te Quick Setup routine described in te separate booklet Quick Setup Guide for Transmitter M400 enclosed in te box. Note: Refer to section 3.2 Control/Navigation Keys for information on menu navigation.

Transmitter M400 42 7 Sensor Calibration (PATH: Cal) Te calibration key c allows te user one-touc access to sensor calibration and verification features. NOTE: During Calibration on Cannel A, a flasing H (Hold) in te upper left corner of te display indicates a calib ration is in process wit a Hold condition active. (Te old output function needs to be activated.) See also capter 3.3 Display. 7.1 Enter Calibration Mode Wile in Measurement mode press te c key. If te display prompts you to enter te calibration security code, press te or key to set te calibration security mode, ten press te [ENTER] key to confirm te calibration security code. Press te or. key to select te type of calibration desired. Select te desired sensor Calibration task. Te coices for eac sensor type are: Conductivity = Conductivity, Resistivity*, Temperature**, Edit**, Verify Oxygen = Oxygen, Temperature**, Edit**, Verify O2 opt = Oxygen***, Verify*** ph = ph, mv**, Temperature**, Edit ph**, Edit mv**, Verify, ORP*** ISFET = ISFET**, Temperature**, Edit ISFET**, mv**, Edit mv**, Verify**, CO 2 = CO2**, Temperature**, Edit**, Verify** Press [ENTER]. * not available at M400 Type 1 Cond Ind ** only on cannel A *** only available on cannel B After every successful calibration, te tree options are available: Adjust: Calibration values will be overtaken und used for te measurement. Additionally, te data will be stored in te calibration istory*. Calibrate: Calibration values will be stored in te calibration istory* for documentation, but will not be used for te measurement. Te calibration values from te last valid adjustment will be furter used for te measurement. Abort: Calibration values will be discarded. * only available wit ISM sensors

Transmitter M400 43 7.2 Conductivity calibration for two- or four-electrode sensors Tis feature provides te ability to perform a one-point, two-point or process Conductivity resp. Resistivity Sensor calibration for two- or four-electrode sensors. Te procedure described below works for bot types of calibrations. Tere is no reason to perform a two-point calibration on a two-electrode conductivity sensor. Four electrode sensors do require a two-point calibration. NOTE: Wen performing calibration on a conductivity sensor, results will vary depending on te metods, calibration apparatus and / or quality of reference standards used to perform te calibration. NOTE: For measuring tasks te temperature compensation for te application as defined at te menu Resistivity will be considered and not te temperature compensation selected tru te calibration procedure (see also capter 8.2.3.1 Conductivity temperature compensation ; PATH: Menu/Configure/Measurement/Resistivity). Enter Conductivity sensor calibration mode as described in section 7.1 Enter Calibration Mode. Te next screen will ask to select te type of temperature compensation mode desired during te calibration process. Coices are Standard, Lin 25 C, Lin 20 C or Nat H 2 O compensation mode. Standard compensation: includes compensation for non-linear ig purity effects as well as conventional neutral salt impurities and conforms to ASTM standards D1125 and D5391. Lin 25 C compensation: adjusts te reading by a factor expressed as % per C deviation from 25 C. Te factor can be modified. Lin 20 C compensation: adjusts te reading by a factor expressed as % per C deviation from 20 C. Te factor can be modified. Nat H 2 O compensation: includes compensation to 25 C according to EN27888 for natural water. Coose te compensation mode, modify te factor were appropriate and press [ENTER].

Transmitter M400 44 7.2.1 One-point sensor calibration (Display reflects typical Conductivity Sensor calibration) Enter Conductivity Sensor Calibration mode as described in section 7.1 Enter Calibration Mode and coose one of te compensation modes (see section 7.2 Conductivity calibration for twoor four electrode sensors ). Select 1 point calibration and press [ENTER]. Wit conductivity sensors a one-point calibration is always performed as a slope calibration. Place te electrode into te reference solution. Enter te value for Point 1 including a decimal point and units. Te value in te second text line is te value being measured by te transmitter and sensor in te units selected by te user. Press [ENTER] wen tis value is stable to perform te calibration. After te calibration te cell multiplier or slope calibration factor M i.e. cell constant and te Adder or offset calibration factor A are displayed. In case of a successful calibration, te calibration values are stored in te cal istory* and taken over (Adjust), stored in te cal istory* and not taken over (Calibrate) or discarded (Abort). * only available wit ISM sensor. Te values will be stored in te sensor. If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.2.2 Two-point sensor calibration (four electrode sensors only) (Display reflects typical Conductivity sensor calibration) Enter Conductivity Sensor Calibration mode as described in section 7.1 Enter Calibration Mode and coose one of te compensation modes (see section 7.2 Conductivity calibration for twoor four electrode sensors ). Select 2 point calibration and press [ENTER]. Place te electrode into te first reference solution. CAUTION: Rinse sensors wit a ig-purity water solution between calibration points to prevent contamination of te reference solutions.

Transmitter M400 45 Enter te value for Point 1 including a decimal point and units. Te value in te second text line is te value being measured by te transmitter and sensor in te units selected by te user. Press [ENTER] wen tis value is stable and place te electrode into te second reference solution. Enter te value for Point 2 including a decimal point and units. Te value in te second text line is te value being measured by te transmitter and sensor in te units selected by te user. Press [ENTER] wen tis value is stable to perform te calibration. After te calibration of te cell multiplier or slope calibration factor M i.e. cell constant and te Adder or offset calibration factor A are displayed. In case of a successful calibration, te calibration values are stored in te cal istory* and taken over (Adjust), stored in te cal istory* and not taken over (Calibrate) or discarded (Abort). * only available wit ISM sensor. Te values will be stored in te sensor. If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.2.3 Process Calibration (Display reflects typical Conductivity sensor calibration) Enter Conductivity Sensor Calibration mode as described in section 7.1 Enter Calibration Mode and coose one of te compensation modes (see section 7.2 Conductivity calibration for twoor four electrode sensors ). Select Process Calibration and press [ENTER]. Wit conductivity sensors a process calibration is always performed as a slope calibration. Take a sample and press te [ENTER] key again to store te current measuring value. During te ongoing calibration process, te letter of te cannel, wic is concerned by te calibration, A or B is blinking in te display. After determining te conductivity value of te sample, press te [CAL] key again to proceed wit te calibration. Enter te conductivity value of te sample, ten press te [ENTER] key to start te calculation of calibration results.

Transmitter M400 46 After te calibration te Multiplier or slope calibration factor M and te Adder or offset calibration factor A are displayed. In case of a successful calibration, te calibration values are stored in te cal istory* and taken over (Adjust), stored in te cal istory* and not taken over (Calibrate) or discarded (Abort). * only available wit ISM sensor. Te values will be stored in te sensor. If Adjust or Calibrate are cosen, te message Calibration successful is displayed. Te M400 returns to te measuring mode. 7.3 Conductivity calibration for inductive sensors Tis feature provides te ability to perform a one-point offset, one-point slope or process calibration for te inductive conductivity sensors. Tis feature is only available at te M400 Type 1 Cond Ind. NOTE: Wen performing calibration on a conductivity sensor, results will vary depending on te metods, calibration apparatus and / or quality of reference standards used to perform te calibration. NOTE: For measuring tasks te temperature compensation for te application as defined at te menu Resistivity will be considered and not te temperature compensation selected tru te calibration procedure (see also capter 8.2.3.1 Conductivity temperature compensation ; PATH: Menu/Configure/Measurement/Resistivity). Enter Conductivity sensor calibration mode as described in section 7.1 Enter Calibration Mode. Te next screen will ask to select te type of temperature compensation mode desired during te calibration process. Coices are Standard, Lin 25 C, Lin 20 C or Nat H2O compensation mode. Standard compensation: includes compensation for non-linear ig purity effects as well as conventional neutral salt impurities and conforms to ASTM standards D1125 and D5391. Lin 25 C compensation: adjusts te reading by a factor expressed as % per C at a deviation from 25 C. Te factor can be modified. Lin 20 C compensation: adjusts te reading by a factor expressed as % per C at a deviation from 20 C. Te factor can be modified. Nat H 2 O compensation: includes compensation to 25 C according to EN27888 for natural water. Coose te compensation mode, modify te factor were appropriate and press [ENTER].

Transmitter M400 47 7.3.1 Zero-point calibration (Display reflects typical Conductivity sensor calibration) Enter Conductivity Sensor Calibration mode as described in section 7.1 Enter Calibration Mode and coose one of te compensation modes (see section 7.3 Conductivity calibration for inductive sensors ). Select Zero Point and press [ENTER]. Press te [ENTER] key again to go on wit te calibration. Te display canges to sow te multiplier or slope calibration factor M i.e. cell factor and te adder or offset calibration factor A. After a successful calibration, te calibration values are taken over (Adjust) or discarded (Calibrate) or (Abort). If Adjust is cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.3.2 One-point slope calibration Enter Conductivity Sensor Calibration mode as described in section 7.1 Enter Calibration Mode and coose one of te compensation modes (see section 7.3 Conductivity calibration for inductive sensors ). Select 1 point Slope and press [ENTER]. Enter te value for Point 1 including a decimal point and units. Te value in te second text line is te value being measured by te transmitter and sensor in te units selected by te user. Press [ENTER] wen tis value is stable to perform te calibration. Te display canges to sow te multiplier or slope calibration factor M i.e. cell factor and te adder or offset calibration factor A. After a successful calibration, te calibration values are taken over (Adjust) or discarded (Calibrate) or (Abort). If Adjust is cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press Enter on te display. After pressing Enter te M400 returns to te measuring mode.

Transmitter M400 48 7.3.3 Process calibration Enter Conductivity Sensor Calibration mode as described in section 7.1 Enter Calibration Mode and coose one of te compensation modes (see section 7.3 Conductivity calibration for inductive sensors ). Select Process and press [ENTER]. Take a sample and press te [ENTER] key again to store te current measuring value. During te ongoing calibration process, A is blinking in te display. After determining te conductivity value of te sample, press te [CAL] key again to proceed wit te calibration. Enter te conductivity value of te sample, ten press te [ENTER] key to start te calculation of calibration results. After a successful calibration, te calibration values are taken over (Adjust) or discarded (Calibrate) or (Abort). If Adjust is cosen, te message Calibration successful is displayed. Te M400 returns to te measuring mode. 7.4 Calibration of amperometric oxygen sensors Oxygen calibration for amperometric sensors is performed as eiter a one-point or process calibration. NOTE: Before air calibration, for igest accuracy, enter te barometric pressure and relative umidity, as described in section 8.2.3.4 Oxygen parameters. 7.4.1 One-point calibration for amperometric oxygen sensors Enter Oxygen calibration mode as described in section 7.1 Enter Calibration Mode. A one-point calibration of oxygen sensors is always eiter a one point slope (i.e. wit air) or a zero (offset) calibration. A one point slope calibration is done in air and a one point offset calibration is done at 0 ppb oxygen. A one-point zero dissolved oxygen calibration is available but not normally recommended since zero oxygen is very ard to acieve. A zero-point calibration is only recommended if ig accuracy at low oxygen level (below 5% air) is needed.

Transmitter M400 49 Select 1 point followed by eiter Slope or ZeroPt as te calibration type. Press [ENTER]. Enter te value for Point 1 including a decimal point and units. Te value in te second text line is te value being measured by te transmitter and sensor in te units selected by te user. Press [ENTER] wen tis value is stable to perform te calibration. After te calibration te slope S and te offset value Z are displayed. In case of a successful calibration, te calibration values are stored in te cal istory* and taken over (Adjust), stored in te cal istory* and not taken over (Calibrate) or discarded (Abort). * only available wit ISM sensor. Te values will be stored in te sensor. If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. NOTE: Wit ISM sensors: If a one point calibration is executed, te transmitter sends te polarization voltage, valid for te calibration, to te sensor. If te polarization voltage for te measuring mode and calibration mode is different, te transmitter will wait 120 seconds before starting te calibration. In tis case te transmitter will also go after te calibration for 120 seconds to te HOLD Mode, before returning to te measuring mode again. (see also capter 8.2.3.4 Parameter for oxygen measurement based on amperometric sensors ) 7.4.2 Process calibration for amperometric oxygen sensors Enter Oxygen calibration mode as described in section 7.1 Enter Calibration Mode. A process calibration of oxygen sensors is always eiter a slope or a offset calibration. Select Process followed by eiter Slope or ZeroPt as te calibration type. Press [ENTER] Take a sample and press te [ENTER] key again to store te current measuring value. To sow te ongoing calibration process, A or B (depending on te cannel) is blinking in te display. After determining te O 2 value of te sample press te c key again to proceed wit te calibration.

Transmitter M400 50 Enter te O 2 value of te sample ten press te [ENTER] key to start te calculation of te calibration results. After te calibration te slope S and te offset value Z are displayed. In case of a successful calibration, te calibration values are stored in te cal istory* and taken over (Adjust), stored in te cal istory* and not taken over (Calibrate) or discarded (Abort). * only available wit ISM sensor. Te values will be stored in te sensor. If Adjust or Calibrate are cosen, te message Calibration successful is displayed. Te M400 returns to te measuring mode. 7.5 Calibration of optical oxygen sensors Oxygen calibration for optical sensors can be performed as a two-point, process or, depending on te sensor model connected to te transmitter, also as a one-point calibration. 7.5.1 One-point calibration for optical oxygen sensors Typically a one point calibration is done in air. Neverteless oter calibration gases and solutions are possible. Te calibration of an optical sensor is always a calibration of te pase of te fluorescence signal towards te internal reference. During a one point calibration te pase in tis point is measured and extrapolated over te measuring range. Enter O2 opt calibration mode as described in section 7.1 Enter Calibration Mode. Select 1 point as te calibration type. Press [ENTER]. Place te sensor in te calibration gas (e.g. air) resp. solution. Depending on te parameterized Drift control (see capter 8.2.3.5 Parameters for oxygen measurement based on optical sensors ) one of te two following modes is active.

Transmitter M400 51 7.5.1.1 Auto mode Enter te value for Point 1 including a decimal point and units. Te value in te second text line is te value being measured by te transmitter resp. sensor in te units selected by te user. As soon as te stabilization criteria ave been fulfilled te display canges. Te display sows now te values for te pase of te sensor at 100% air (P100) and at 0% (P0) air. In case of a successful calibration, te calibration values are stored in te cal istory and taken over (Adjust), stored in te cal istory and not taken over (Calibrate) or discarded (Abort). If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.5.1.2 Manual mode Enter te value for Point 1 including a decimal point and units. Te value in te second text line is te value being measured by te transmitter resp. sensor in te units selected by te user. Press [ENTER] to proceed. Te display sows now te values for te pase of te sensor at 100% air (P100) and at 0% (P0) air. In case of a successful calibration, te calibration values are stored in te cal istory and taken over (Adjust), stored in te cal istory and not taken over (Calibrate) or discarded (Abort). If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.5.2 Two-Point sensor calibration Te calibration of an optical sensor is always a calibration of te pase of te fluorescence signal towards te internal reference. A two-point calibration is a combination of first a calibration in air (100%) were a new pase P100 is measured and ten a calibration in nitrogen (0%) were a new pase P0 is measured. Tis calibration routine gives te most accurate calibration curve over te wole measuring range. Enter O2 opt calibration mode as described in section 7.1 Enter Calibration Mode.

Transmitter M400 52 Select 2 point as te calibration type. Press [ENTER]. Place te sensor in air. Depending on te parameterized Drift control (see capter 8.2.3.5 Parameters for oxygen measurement based on optical sensors ) one of te two following modes is active. 7.5.2.1 Auto mode Enter te value for Point 1 including a decimal point and units. Te value in te second text line is te value being measured by te transmitter resp. sensor in te units selected by te user. As soon as te stabilisation criteria ave been fulfilled, te display canges and prompts you to cange te gas. Place te senor in te second calibration gas and press te [ENTER] key to go on wit te calibration. Enter te value for Point 2 including a decimal point and units. Te value in te second text line is te value being measured by te transmitter resp. sensor. As soon as te stabilization criteria ave been fulfilled te display canges. Te display sows now te values for te pase of te sensor at 100% air (P100) and at 0% (P0) air. In case of a successful calibration, te calibration values are stored in te cal istory and taken over (Adjust), stored in te cal istory and not taken over (Calibrate) or discarded (Abort). If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.5.2.2 Manual mode Enter te value for Point 1 including a decimal point and units. Te value in te second text line is te value being measured by te transmitter resp. sensor in te units selected by te user. Press [ENTER] to proceed.

Transmitter M400 53 Te display canges and prompts you to cange te gas. Place te senor in te second calibration gas and press te [ENTER] key to go on wit te calibration. Enter te value for Point 2 including a decimal point and units. Te value in te second text line is te value being measured by te transmitter resp. sensor. Press [ENTER] to proceed. Te display sows now te values for te pase of te sensor at 100% air (P100) and at 0% (P0) air. In case of a successful calibration, te calibration values are stored in te cal istory and taken over (Adjust), stored in te cal istory and not taken over (Calibrate) or discarded (Abort). If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.5.3 Process calibration Te calibration of an optical sensor is always a calibration of te pase of te fluorescence signal towards te internal reference. During a process calibration te pase in tis point is measured and extrapolated over te measuring range. Enter O2 opt calibration mode as described in section 7.1 Enter Calibration Mode. Select 1 point as te calibration type. Press [ENTER]. Take a sample and press te [ENTER] key again to store te current measuring value. To sow te ongoing calibration process, A or B (depending on te cannel) is blinking in te display. After determining te O 2 value of te sample press te [CAL] key again to proceed wit te calibration. Enter te O 2 value of te sample ten press te [ENTER] key to start calibration.

Transmitter M400 54 Te display sows now te values for te pase of te sensor at 100% air (P100) and at 0% (P0) air. In case of a successful calibration, te calibration values are taken over and stored in te cal istory (Adjust), only stored in te cal istory (Calibrate) or aborted. If Adjust or Calibrate are cosen, te message Calibration successful is displayed. Te M400 returns to te measuring mode. 7.6 ph calibration For ph sensors, te M400 transmitter features one-point, two-point (Auto or Manual mode) or process calibration wit 8 preset buffer sets or manual buffer entry. Buffer values refer to 25 C. To calibrate te instrument wit automatic buffer recognition, you need a standard ph buffer solution tat matces one of tese values. (See section 8.2.3.2 ph/orp parameters for configuring modes and selecting buffer sets.) Please select te correct buffer table before using automatic calibration (see capter 19 Buffer tables ). 7.6.1 One point calibration Enter ph calibration mode as described in section 7.1 Enter Calibration Mode. Select 1 point Calibration. Wit ph sensors a one point calibration is always performed as a offset calibration. Depending on te parameterized Drift control (see capter 8.2.3.2 ph parameters ) one of te two following modes is active. 7.6.1.1 Auto mode Place te electrode in te buffer solution and press te [ENTER] key to start te calibration. Te display sows te buffer te transmitter as recognized (Point 1) and te measured value.

Transmitter M400 55 As soon as te stabilisation criteria ave been fulfilled te display canges te display sows now te slope calibration factor S and te offset calibration factor Z. In case of a successful calibration, te calibration values are stored in te cal istory* and taken over (Adjust), stored in te cal istory* and not taken over (Calibrate) or discarded (Abort). * only available wit ISM sensor. Te values will be stored in te sensor. If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.6.1.2 Manual Mode Place te electrode in te buffer solution. Te display sows te buffer te transmitter as recognized (Point 1) and te measured value. Press [ENTER] to proceed. Te display sows now te slope calibration factor S and te offset calibration factor Z. In case of a successful calibration, te calibration values are stored in te cal istory* and taken over (Adjust), stored in te cal istory* and not taken over (Calibrate) or discarded (Abort). * only available wit ISM sensor. Te values will be stored in te sensor. If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.6.2 Two-point calibration Enter ph calibration mode as described in section 7.1 Enter Calibration Mode. Select 2 Point calibration. Depending on te parameterized Drift control (see capter 8.2.3.2 ph parameters ) one of te two following modes is active.

Transmitter M400 56 7.6.2.1 Auto Mode Place te electrode in te first buffer solution and ten press te [ENTER] key. Te display sows te buffer te transmitter as recognized (Point 1) and te measured value. As soon as te stabilisation criteria ave been fulfilled stabilisation criteria ave been fulfilled, te display canges and prompts you to place te electrode in te second buffer. Place te electrode in te second buffer solution and press te [ENTER] key to go on wit te calibration. Te display sows te second buffer te transmitter as recognized (Point 2) and te measured value. As soon as te stabilisation criteria ave been fulfilled te display canges to sow te slope calibration factor S and te offset calibration factor Z. In case of a successful calibration, te calibration values are stored in te cal istory* and taken over (Adjust), stored in te cal istory* and not taken over (Calibrate) or discarded (Abort). * only available wit ISM sensor. Te values will be stored in te sensor. If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.6.2.2 Manual Mode Place te electrode in te first buffer solution. Te display sows te buffer te transmitter as recognized (Point 1) and te measured value. Press [ENTER] to proceed. Place te transmitter in te second buffer solution. Te display sows te buffer te transmitter as recognized (Point 2) and te measured value. Press [ENTER] to proceed.

Transmitter M400 57 Te display sows te slope calibration factor S and te offset calibration factor Z. In case of a successful calibration, te calibration values are stored in te cal istory* and taken over (Adjust), stored in te cal istory* and not taken over (Calibrate) or discarded (Abort). If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.6.3 Process calibration Enter ph calibration mode as described in section 7.1 Enter Calibration Mode. Select Process calibration. Wit ph sensors a process calibration is always performed as a offset calibration. Take a sample and press te [ENTER] key again to store te current measuring Value. To sow te ongoing calibration process, A or B (depending on te cannel) is blinking in te display. After determining te ph value of te sample, press te [CAL] key again to proceed wit te calibration. Enter te ph value of te sample ten press te [ENTER] key to start te calculation of te calibration results. After te calibration te slope calibration factor S and te offset calibration factor Z are displayed. In case of a successful calibration, te calibration values are stored in te cal istory* and taken over (Adjust), stored in te cal istory* and not taken over (Calibrate) or discarded (Abort). * only available wit ISM sensor. Te values will be stored in te sensor. If Adjust or Calibrate are cosen, te message Calibration successful is displayed. Te M400 returns to te measuring mode.

Transmitter M400 58 7.6.4 mv calibration (only for analog sensors) Enter mv calibration mode as described in section 7.1 Enter Calibration Mode. Te user can now enter Point 1. Te offset calibration factor is calculated by using te value of Point1 instead of te measured value (line 4, mv =...) and displayed on te next screen. Z is te newly calculated offset calibration factor. Te slope calibration factor S is always 1 and does not enter te calculation. After a successful calibration, te calibration values are taken over (Adjust) or discarded (Calibrate) or (Abort). If Adjust is cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.6.5 ORP calibration (only for ISM sensors) In case tat an ph sensor wit solution ground based on ISM tecnology is connected to te M400, te transmitter gives te option to make in addition to te ph calibration an ORP calibration. NOTE: In case of coosing ORP calibration te parameters defined for ph (see capter 8.2.3.2 ph/orp parameters, PATH: Menu/Configure/Measurement/pH) will not be considered. Enter ORP calibration mode as described in section 7.1 Enter Calibration Mode. Te user can now enter Point 1. In addition te actual ORP is displayed. Press [ENTER] to proceed. Te display sows te slope calibration factor S and te offset calibration factor Z. After a successful calibration, te calibration values are taken over and stored in te cal istory (Adjust), only stored in te cal istory (Calibrate) or aborted. If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode.

Transmitter M400 59 7.7 ISFET calibration NOTE: Wen measuring wit an ISFET sensor, te nominal zero point must be adjusted eac time a new sensor is connected (to adjust te operating point). Te adjustment for tat sensor remains stored in te transmitter. Immerse sensor in a zero point buffer (6.5... 7.5). Make a mv calibration and enter for point 1 te value 00.00 mv. (see capter 7.7.4 mv calibration ). Afterwards a two-point calibration (see capter 7.7.2 Two-point calibration ) of te ISFET sensor is recommended to acieve best measuring results. 7.7.1 One-point calibration Enter ISFET calibration mode as described in section 7.1 Enter Calibration Mode. Select 1 point Calibration. Wit ISFET sensors a one point calibration is always performed as a offset calibraton. Te following calibration steps are te same as described for ph sensors (see capter 7.6.1 One point calibration ). 7.7.2 Two-point calibration Enter ISFET calibration mode as described in section 7.1 Enter Calibration Mode. Select 2 point Calibration. Te following calibration steps are te same as described for ph sensors (see capter 7.6.2 Two-point calibration ). 7.7.3 Process calibration Enter ISFET calibration mode as described in section 7.1 Enter Calibration Mode.

Transmitter M400 60 Select Process Calibration. Wit ISFET sensors a process calibration is always performed as a offset calibration. Te following calibration steps are te same as described for ph sensors (see capter 7.6.3 Process calibration ). 7.7.4 mv calibration Enter mv calibration mode as described in section 7.1 Enter Calibration Mode. Te following calibration steps are te same as described for ph sensors (see capter 7.6.4 mv calibration ). 7.8 Dissolved carbon dioxide calibration For dissolved carbon dioxide (CO 2 ) sensors, te M400 transmitter features one-point, two-point or process calibration. For te one-point or two-point calibration te solution wit ph = 7.00 and/or ph = 9.21 of te Mettler 9 standard buffer as to be used (see also capter 8.2.3.85 Dissolved carbon dioxide parameters ). 7.8.1 One point calibration Enter CO 2 calibration mode as described in section 7.1 Enter Calibration Mode. Select 1 point Calibration. Wit CO2 sensors a one point calibration is always performed as a offset calibration. Depending on te parameterized Drift control (see capter 8.2.3.5 Dissolved carbon dioxide parameters ) one of te two following modes is active. 7.8.1.1 Auto Mode Place te electrode in te buffer solution and press te [ENTER] key to start te calibration. Te display sows te buffer te transmitter as recognized (Point 1) and te measured value.

Transmitter M400 61 As soon as te stabilisation criteria ave been fulfilled te display canges to sow te slope calibration factor S and te offset calibration factor Z. After a successful calibration, te calibration values are taken over (Adjust) or were aborted (Calibrate or Abort). If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.8.1.2 Manual Mode Place te electrode in te buffer solution. Te display sows te buffer te transmitter as recognized (Point 1) and te measured value. Press [ENTER] to proceed. Te display sows now te slope calibration factor S and te offset calibration factor Z. After a successful calibration, te calibration values are taken over (Adjust) or were aborted (Calibrate or Abort). If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.8.2 Two-point calibration Enter CO 2 calibration mode as described in section 7.1 Enter Calibration Mode. Select 2 Point calibration. Depending on te parameterized Drift control (see capter 8.2.3.5 Dissolved carbon dioxide parameters ) one of te two following modes is active.

Transmitter M400 62 7.8.2.1 Auto Mode Place te electrode in te first buffer solution and press te [ENTER] key to start te calibration. Te display sows te buffer te transmitter as recognized (Point 1) and te measured value. As soon as te stabilisation criteria ave been fulfilled, te display canges and prompts you to place te electrode in te second buffer. Place te electrode in te second buffer solution and press te [ENTER] key to go on wit te calibration. Te display sows te second buffer te transmitter as recognized (Point 2) and te measured value. As soon as te stabilisation criteria ave been fulfilled, te display canges to sow te slope calibration factor S and te offset calibration factor Z. After a successful calibration, te calibration values are taken over (Adjust) or were aborted (Calibrate or Abort). If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.8.2.2 Manual Mode Place te electrode in te first buffer solution. Te display sows te buffer te transmitter as recognized (Point 1) and te measured value. Press [ENTER] to proceed. Place te electrode in te second buffer solution. Te display sows te buffer te transmitter as recognized (Point 2) and te measured value. Press [ENTER] to proceed.

Transmitter M400 63 Te display sows te slope calibration factor S and te offset calibration factor Z. After a successful calibration, te calibration values are taken over (Adjust) or were aborted (Calibrate or Abort). If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.8.3 Process calibration Enter CO 2 calibration mode as described in section 7.1 Enter Calibration Mode. Select Process calibration. Wit CO2 sensors a process calibration is always performed as a offset calibration. Take a sample and press te [ENTER] key again to store te current measuring value. To sow te ongoing calibration process, A or B (depending on te cannel) is blinking in te display. After determining te CO 2 value of te sample, press te c key again to proceed wit te calibration. Enter te CO 2 value of te sample ten press te [ENTER] key to start calibration. Te display sows te slope calibration factor S and te offset calibration factor Z. After a successful calibration, te calibration values are taken over (Adjust) or were aborted (Calibrate or Abort). If Adjust or Calibrate are cosen, te message Calibration successful is displayed. Te M400 returns to te measuring mode. 7.9 Sensor temperature calibration (only for analog sensors) Enter Sensor calibration mode as described in section 7.1 Enter Calibration Mode and select Temperature.

Transmitter M400 64 7.9.1 One-Point sensor temperature calibration Select 1 point calibration. Slope or Offset can be selected wit te 1 Point calibration. Select Slope to recalculate te Slope factor M (Multiplier) or Offset to recalculate te offset calibration factor A (Adder). Enter te value for Point 1 and press [ENTER]. After a successful calibration, te calibration values are taken over and stored in te cal istory (Adjust), only stored in te cal istory (Calibrate) or aborted. If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode. 7.9.2 Two-Point sensor temperature calibration Select 2 Point as calibration type. Enter te value for Point 1 and press [ENTER]. Enter te value for Point 2 and press [ENTER]. After a successful calibration, te calibration values are taken over and stored in te cal istory (Adjust), only stored in te cal istory (Calibrate) or aborted. If Adjust or Calibrate are cosen, te message Calibration successful is displayed. In any case you will get te message Re-install sensor and Press ENTER on te display. After pressing ENTER te M400 returns to te measuring mode.

Transmitter M400 65 7.10 Edit sensor calibration constants (only for analog sensor) Enter Calibration mode as described in section 7.1 Enter Calibration Mode and select Edit, Edit ph, Edit ISFET, or Edit mv. All calibration constants for te selected sensor cannel are displayed. Primary measurement constants (p) are displayed on Line 3. Secondary measurement (temperature) constants (s) for te sensor are displayed on Line 4. Te calibration constants can be canged in tis menu. Select Yes to save te new calibration values and te successful calibration is confirmed on te display. NOTE: Eac time a new analog conductivity sensor is connected to te M400 Type 1, 2, 3 transmitter, it is necessary to enter te unique calibration data (cell constant and offset) located on te sensor label. 7.11 Sensor verification Enter Calibration mode as described in section 7.1. Enter Calibration Mode and select Verify. Te measured signal of te primary and te secondary measurement in electrical units are sown. Te meter calibration factors are used wen calculating tese values. Press [ENTER] to exit from tis display.

Transmitter M400 66 8 Configuration (PATH: Menu / Configure) Configure Measurement Analog Outputs Set Points Alarm/Clean ISM Setup* Display Hold Outputs * Only available in combination wit ISM sensors 8.1 Enter configuration mode Wile in Measurement mode, press te key. Press te or. key to navigate to te Configure menu and press [ENTER]. 8.2 Measurement (PATH: Menu / Configure / Measurement) Enter configuration mode as described in Section 8.1 Enter configuration mode. Press te [ENTER] key to select tis menu. Te following sub menus can now be selected: Cannel Setup, Temperature Source, Comp / ph / O 2 and Set Averaging. 8.2.1 Cannel Setup (PATH: Menu / Configure / Measurement / Cannel Setup) Press te [ENTER] key to select te Cannel Setup menu. Depending on te connected sensor (analog or ISM) te cannel can be cosen.

Transmitter M400 67 8.2.1.1 Analog sensor Select sensor type Analog and press [ENTER]. Available measurement types are (depends on transmitter type): Measurement parameter Type ph / ORP = ph or ORP 1,2,3 ISFET = ph measurement based on ISFET tecnology 1,2,3 Cond (2) = 2 electrode conductivity 1,2,3 Cond (4) = 4 electrode conductivity 1,2,3 Cond Ind = Inductive conductivity 1 Cond Ind O 2 i = Dissolved oxygen or oxygen in gas (ppm) 2,3 O 2 lo = Dissolved oxygen or oxygen in gas (ppb) 3 CO 2 = Accurate CO 2 measurement 3 Te 4 lines of te display can now be configured wit sensor cannel A for eac line of te display as well as measurements and unit multipliers. Pressing te [ENTER] key will display te selection for lines a, b, c and d. 8.2.1.2 ISM sensor Select sensor type ISM and press [ENTER]. If an ISM sensor is connected, te transmitter automatically (Parameter = Auto) recognizes te type of sensor. You can also fix te transmitter to a certain measurement parameter (Parameter = ph / ORP, Cond(4), O 2 i or 0 2 lo), depending on te type of trans mitter you ave. Coose te display setting for line a, b, c, d. Measurement parameter Type ph / ORP = ph and ORP 1, 1 Cond Ind, 2, 3 Cond (4) = 4 electrode conductivity 1, 1 Cond Ind, 2, 3 O 2 i = Dissolved oxygen or oxygen in gas (ppm) 2, 3 O 2 lo = Dissolved oxygen or oxygen in gas (ppb) 3 O 2 Opt = Dissolved oxygen optical 2, 3 8.2.1.3 Save canges of te cannel setup After te procedure of te cannel setup described in te previous capter pressing te [ENTER] key again will bring up te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made.

Transmitter M400 68 8.2.2 Temperature source (only for analog sensors) (PATH: Menu / Configure / Measurement / Temperature Source) Enter Measurement as described in capter 8.2 Measurement. Select Temperature Source by using te or. key and press [ENTER]. Te following options can be cosen: Auto: Te transmitter automatically recognizes te temperature source. Use NTC22K: Input will be taken from te sensor attaced. Use Pt1000: Temperature input will be taken from te sensor attaced. Use Pt100: Input will be taken from te sensor attaced. Fixed = 25 C: Allows a specific temperature value to be entered. It must be cosen wen customer use ph sensor witout temperature source. Pressing te [ENTER] key will bring up te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made. 8.2.3 Parameter related settings (PATH: Menu / Configure / Measurement / ph or ISFET or O2 or O2 optical, O2 opt sampling rate, LED Mode or Resistivity or CO2) Additional measurement and calibration parameters can be set for eac parameter; conductivity, ph, ISFET, O 2, and CO2 Enter Configuration Mode as described in section 8.1 Enter Configuration mode and select te menu Measurement (see section 8.2 Configuration/Measurement ). Depending on te connected sensor, te menu ph, ISFET, O2, O2 optical, O2 opt sampling rate, LED Mode, Resistivity or CO2 can be selected by using te or key. Press [ENTER] For more details, please see te following explanations depending on te selected parameter.

Transmitter M400 69 8.2.3.1 Conductivity temperature compensation If during te cannel setup (see capter 8.2.1 Cannel setup ) te parameter conductivity as been cosen, te temperature compensation mode can be selected. Temperature compensation sould be matced to te caracteristics of te application. Te transmitter considers tis value for te temperature compensation by calculating and displaying te result for te measured conductivity. NOTE: For calibration purposes te temperature compensation as defined at te menu Cal/Compensation for te buffers resp. samples will be considered (see also capter 7.2 Conductivity Calibration for two- or four-electrode sensors resp. capter 7.3 Conductivity calibration for inductive sensors ). For doing tis adjustment te menu Resistivity, tat will be displayed, as to be cosen. (see capter 8.2.3 Parameter related settings ) Te first two measurement lines are displayed on te screen. Tis capter described te procedure for te first measurement line. By using te key c te second line will be cosen. To select te 3rd and 4t line press [ENTER]. Te procedure itself works at every measurement line in te same way. Coices are Standard, Lin 25 C and Lin 20 C. Standard compensation includes compensation for non-linear ig purity effects as well as conventional neutral salt impurities and conforms to ASTM standards D1125 and D5391. Lin 25 C compensation adjusts te reading by a factor expressed as a % per C (deviation from 25 C). Use only if te solution as a well-caracterized linear temperature coefficient. Te factory default setting is 2.0% / C. Lin 20 C compensation adjusts te reading by a factor expressed as a % per C (deviation from 20 C). Use only if te solution as a well-caracterized linear temperature coefficient. Te factory default setting is 2.0% / C If compensation mode Lin 25 C or Lin 20 C as been cosen, te factor for te adjustment of te reading can be modified after pressing [ENTER] (If working at measurement line 1 or 2 press [ENTER] twice). Adjust te factor for temperature compensation. Pressing [ENTER] will bring up te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made.

Transmitter M400 70 8.2.3.2 ph/orp parameters If during te cannel setup (see capter 8.2.1 Cannel setup ) te parameter ph/orp as been cosen or an ph sensor based on ISM tecnology is connected to te transmitter, te parameters drift control, buffer recognition, STC, IP, fixed Calibration temperature and te displayed units for slope and zero point can be set resp. adjusted. For doing tis adjustments resp. settings te menu ph, tat will be displayed, as to be cosen. (see capter 8.2.3 Parameter related settings ). Select te drift control for calibration as Auto (drift and time criteria ave to be fulfilled) or manual (Te user can decide wen a signal is stable enoug to complete calibration) followed by te relevant buffer table for te automatic buffer recognition. If te drift rate is less tan 0.4 mv over a 19 second interval ten te reading is stable and te calibration is done using te last reading. If te drift criteria is not met witin 300 seconds ten te calibration times out and te message Calibration Not Done Press ENTER Enter to Exit is displayed. Press [ENTER] For automatic buffer recognition during calibration, select te buffer solution set tat will be used: Mettler-9, Mettler-10, NIST Tec, NIST Std = JIS Std, HACH, CIBA, MERCK, WTW or None. See Section 19 Buffer tables for buffer values. If te auto buffer feature will not be used or if te available buffers are different from tose above, select None. Press [ENTER]. STC is te solution temperature coefficient in units of ph / C referenced to 25 C (Default = 0.000 for most applications). For pure waters, a setting of 0.016 ph / C sould be used. For low conductivity power plant samples near 9 ph, a setting of 0.033 ph / C sould be used. Tese positive coefficients compensate for te negative temperature influence on te ph of tese samples. Press [ENTER]. IP is te isotermal point value (Default = 7.000 for most applications). For specific compensation requirements or non standard inner buffer value, tis value can be canged. Press [ENTER]. Te option to enter a fixed calibration temperature is given. Fixed allows a specific temperature value to be entered. Selecting No means te temperature configured under 8.2.2 will be used for te calibration. Press [ENTER]. Te units for te slope and te zero point, tat will be sown on te display can be cosen. Te default setting for te unit of te slope is [%] and can be canged to [ph/mv]. For te zero point te default setting of te unit is [ph] and can be canged to [mv]. Use te c key to move to te input field and select te unit by using te or key. Pressing [ENTER] again will bring up te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made.

Transmitter M400 71 8.2.3.3 ISFET parameters If during te cannel setup (see capter 8.2.1 Cannel setup ) te parameter ISFET as been cosen, te parameters drift control, buffer recognition, STC, IP, fixed Calibration temperature and te displayed units for slope and zero point can be set resp. adjusted. In case, tat an ISFET sensor as been parameterized, te menu ISFET will be displayed and as to be cosen. (see capter 8.2.3 Parameter related settings ) In te same way as described for ph parameters (see capter 8.2.3.2 ph/orp parameters ) parameters for ISFET sensors can be modified. 8.2.3.4 Parameters for oxygen measurement based on amperometric sensors If during te cannel setup (see capter 8.2.1 Cannel setup ) te parameter O2 i or O2 lo as been cosen or an oxygen sensor based on ISM tecnology is connected to te transmitter, te parameters calibration pressure, process pressure, ProCalPres, salinity and relative umidity can be set resp. adjusted. If an ISM sensor is connected, tere is furtermore te option to adjust te parameterization voltage. For doing tis adjustments resp. settings te menu O2, tat will be displayed, as to be cosen. (see capter 8.2.3 Parameter related settings ) Enter te Calibration pressure in line 3. Te default value for CalPres is 759.8 and te default unit is mmhg. To enter te process pressure navigate to line 4. Te units for process pressure and calibration pressure do not ave to be te same. Press [ENTER] For te algoritm of te process calibration te applied pressure (ProcCalPres) as to be defined. Te value of te process pressure (ProcPres) or te calibration pressure (CalPres) can be used. Cose te pressure, tat applies during te process calibration, resp. sould be used for te algoritm and press [ENTER] In te next step te salinity of te measured solution can be modified. In addition te relative umidity of te calibration gas can also be entered. Te allowed values for relative umidity are in te range 0% to 100%. Wen no umidity measurement is available, use 50% (default value). Press [ENTER]

Transmitter M400 72 If an ISM sensor as been connected resp. configured tere is furtermore te option to adjust te polarization voltage for te sensor. Different value can be entered for te measuring mode (Umeaspol) and for te calibration mode (Ucalpol). For entered values 0 mv to 550 mv te connected sensor will be set to a polarization voltage of 500mV. If te entered value is less ten 550mV, te connected sensor will set to a polarization voltage of 674mV. NOTE: During a process calibration, te polarization voltage Umeaspol, defined for te measuring mode, will be used. NOTE: If a one point calibration is executed, te transmitter sends te polarization voltage, valid for te calibration, to te sensor. If te polarization voltage for te measuring mode and calibration mode is different, te transmitter will wait 120 seconds before starting te calibration. In tis case te transmitter will also go after te calibration for 120 seconds to te HOLD Mode, before returning to te measuring mode again. Press [ENTER] Te display sows te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made. 8.2.3.5 Parameters for oxygen measurement based on optical sensors If during te cannel setup (see capter 8.2.1 Cannel setup ) te parameter O2 Opt as been cosen, te parameters calibration pressure, process pressure, ProCalPres, salinity, drift control and relative umidity can be set resp. adjusted. For doing tese adjustments te menu O2 optical, tat will be displayed, as to be cosen. (see capter 8.2.3 Parameter related settings ) Press [ENTER] Enter te calibration pressure (line 3). Te default value for CalPres is 759.8 and te default unit is mmhg. Also te process pressure (line 4) can be modified. Te units for process pressure and calibration pressure do not ave to be te same. For te algoritm of te process calibration te applied pressure (ProcCalPres) as to be defined. Te value of te process pressure (ProcPres) or te calibration pressure (CalPres) can be used. Cose te pressure, tat applies during te process calibration, resp. sould be used for te algoritm. Select te drift control for calibration as Auto (drift and time criteria ave to be fulfilled) or manual (Te user can decide wen a signal is stable enoug to complete calibration). If Auto is selected, te drift is cecked by te sensor. If te drift criteria is not met witin a defined time (depending on te sensor model) te calibration times out and te message Calibration Not Done Press ENTER Enter to Exit is displayed. Press [ENTER]

Transmitter M400 73 In te next step te salinity of te measured solution can be modified. In addition te relative umidity of te calibration gas can also be entered. Te allowed values for relative umidity are in te range 0% to 100%. Wen no umidity measurement is available, use 50% (default value). Pressing te [ENTER] key again will bring up te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made. 8.2.3.6 Adjusting sampling rate for optical sensors If during te cannel setup (see capter 8.2.1 Cannel setup ) te parameter O2 Opt as been cosen te parameter O2 opt sampling rate can be adjusted. For doing tis adjustment te menu O2 opt sampling rate as to be cosen. (see capter 8.2.3 Parameter related settings Te time interval from one measuring cycle of te sensor to te oter can be adjusted i.e. adapted to te application. A iger value will increase te life time of te OptoCap of te sensor. Pressing te [ENTER] key will bring up te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made. 8.2.3.7 LED Mode If during te cannel setup (see capter 8.2.1 Cannel setup ) te parameter O2 Opt as been cosen te parameters LED, T off, DI 1 LED control can be set resp. adjusted. For doing tese adjustments te menu LED Mode as to be cosen. (see capter 8.2.3 Parameter related settings. Te operation mode for te LED of te sensor can be selected. Tere are te following options. Off: On: Auto: LED is permanently switced off. LED is permanently switced on. Te LED is switced on as long as te measured media temperature is smaller ten Toff (see next value) or switced off tru te digital input signal (see over next value). NOTE: If te LED is switced off, no oxygen measurement is performed. Press [ENTER]

Transmitter M400 74 Depending on te measured media temperature te LED of te sensor can be automatically switced off. If te media temperature is iger ten Toff, te LED will switced off. Te LED will be switced on as soon as te media temperature falls below Toff - 3K. Tis function give te option to increase te lifetime of te OptoCap by switcing off te LED tru SIP or CIP cycles. NOTE: Tis function is only active if te operation mode of te LED is set to Auto. Press [ENTER] Te operation mode of te sensor LED can also be influenced by te digital input signal DI1 of te transmitter. If te parameter DI 1 LED control is set to Yes, te LED is switced off, if DI1 is active. If DI 1 LED control is set to No, te signal of DI1 as now influence on te operation mode of te sensor LED. Tis function is elpful for remote control of te sensor tru a SPS or DCS. NOTE: Tis function is only active if te operation mode of te LED is set to Auto. Pressing te [ENTER] key will bring up te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made. 8.2.3.8 Dissolved carbon dioxide parameters If during te cannel setup (see capter 8.2.1 Cannel setup ) te parameter CO2 as been cosen, te parameters drift control, salinity, HCO3, TotPres and te displayed units for slope and zero point can be set resp. adjusted. Te parameter ph buffer is Mettler-9 and can not be modified. To avoid any interferences of unknown compounds te one-point and two-point calibration can only be done by using Mettler-9 standard buffer. For te calibration please use te solution wit ph = 7.00 and/or ph = 9.21. For doing tis adjustment resp. settings te menu CO2, tat will be displayed, as to be cosen. (see capter 8.2.3 Parameter related settings ) Select Drift Control for calibration as Auto (drift and time criteria ave to be fulfilled) or manual (te user can decide wen a signal is stable enoug to complete calibration) followed by te relevant buffer table for te automatic buffer recognition. If te drift rate is less tan 0.4 mv over a 19 second interval ten te reading is stable and te calibration is done using te last reading. If te drift criteria is not met witin 300 seconds ten te calibration times out and te message Calibration Not Done Press ENTER to Exit is displayed. Te ph Buffer is given by Mettler-9 and can not be modified to avoid any interferences of unknown compounds. For calibration purposes please use te solution wit ph = 7.00 and/or ph = 9.21. Press [ENTER] to go on.

Transmitter M400 75 Te Salinity describes te total amount of solved salts in te CO 2 electrolyte of te sensor connected to te transmitter. It is a sensor specific parameter. Te default value (28.00 g/l) is valid for te InPro 5000. Do not cange tis parameter if te InPro 5000 will be used. Te parameter HCO 3 describes te concentration of ydrogen carbonate in te CO 2 electrolyte of te sensor connected to te transmitter. It is also a sensor specific parameter. Te default value 0.050 Mol/L is valid for te InPro 5000. Do not cange tis parameter if te InPro 5000 will be used. To go on press [ENTER] again. If te unit for te measured dissolved carbon dioxide is %sat, te pressure during te calibration resp. measurement as to be considered. Tis will be done by setting te parameter TotPres. If anoter unit ten %sat as been selected, te result will not be influenced by tis parameter. Pressing [ENTER] again will bring up te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made. 8.2.4 Set averaging Enter Configuration Mode as described in section 8.1 Enter Configuration mode and select te menu Measurement (see section 8.2 Configuration/Measurement ). Selected te menu Set Averaging by using te or key. Press [ENTER] Te averaging metod (noise filter) for eac measurement line can now be selected. Te options are Special (Default), None, Low, Medium and Hig: None = no averaging or filtering Low = equivalent to a 3 point moving average Medium = equivalent to a 6 point moving average Hig = equivalent to a 10 point moving average Special = averaging depending on signal cange (normally Hig averaging but Low averaging for large canges in input signal) Pressing te [ENTER] key again will bring up te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made.

Transmitter M400 76 8.3 Analog outputs (PATH: Menu / Configure / Analog Outputs) Enter Configuration mode as described in Section 8.1. Enter Configuration Mode and navigate to te menu Analog Outputs by using te or. key. Press te [ENTER] key to select tis menu, wic lets you configure te 4 analog outputs. Once analog outputs ave been selected, use te and c buttons to navigate between configurable parameters. Once a parameter is selected, its setting can be selected per te following table:. Wen an alarm value is selected (see capter 8.5.1 Alarm ; PATH: Menu/Configure/Alarm/Clean/Setup Alarm), te analog output will go to tis value if any of tese alarm conditions occurs. Parameter Selectable Values Aout: 1, 2, 3 or 4 (default is 1) Measurement: a, b, c, d or blank (none) (default is blank) Alarm Value: 3.6 ma, 22.0 ma or Off (default is off) Te Aout type can be Normal, Bi-Linear, Auto-Range or Logaritmic. Te range can be 4 20 ma or 0 20 ma. Normal provides linear scaling between te minimum and maximum scaling limits and is te default setting. Bi-Linear will also prompt for a scaling value for te mid-point of te signal and allows two different linear segments between te minimum and maximum scaling limits. Enter te minimum and maximum value of Aout. If Auto-Range was selected ten Aout max1 can be configured. Aout max1 is te maximum value for te first range on auto-range. Te maximum value for te second range on auto-range was set in te previous menu. If Logaritmic Range was selected, it will also prompt for te number of decades as Aout1 # of Decades =2. Te value for te Hold mode can be configured to old te last value or can be set to a fixed value.

Transmitter M400 77 Pressing te [ENTER] key again will bring up te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made. 8.4 Set points (PATH: Menu / Configure / Set Points) Enter Configuration mode as described in Section 8.1. Enter Configuration Mode and navigate to te menu Set Points by using te or. key. Press te [ENTER] key to select tis menu. Up to 6 setpoints can be configured on any of te measurements (a tru d). Te possible Setpoint types are Off, Hig, Low, Outside and Between. An Outside setpoint will cause an alarm condition wenever te measurement goes above its ig limit or below its low limit. A Between setpoint will cause an alarm condition to occur wenever te measurement is between its ig and low limits. Enter te desired value(s) for te setpoint and press [ENTER] Depending on te defined setpoint type, tis screen provides te option to adjust te values for te setpoint(s). Press [ENTER] to proceed. Out of Range Once configured, te selected relay will be activated if a sensor Out of Range condition is detected on te assigned input cannel. Select te setpoint and Yes or No. Select te desired relay tat will activate wen te setpoint alarm condition is reaced. Press [ENTER] Delay Enter te delay time in seconds. A time delay requires te setpoint to be exceeded continuously for te specified lengt of time before activating te relay. If te condition disappears before te delay period is over, te relay will not be activated. Hysteresis Enter te ysteresis as a percentage-value. A ysteresis value requires te measurement to return witin te setpoint value by a specified percentage before te relay is deactivated. For a ig setpoint, te measurement must decrease more tan te indicated percentage below te setpoint value before te relay is deactivated. Wit a low setpoint, te measurement must rise at least tis percentage above te setpoint value before te relay is deactivated. For example, wit a ig setpoint of 100, wen tis value is exceeded, te measurement must fall below 90 before te relay is deactivated. Press [ENTER]

Transmitter M400 78 Hold Enter te Relay Hold Status of Last, On or Off. Tis is te state te relay will go to during a old status. State Relay contacts are in normal state until te associated setpoint is exceeded, ten te relay is activated and te contact states cange. Select Inverted to reverse te normal operating state of te relay (i.e. normally open contacts are in a closed state, and normally closed contacts are in an open state, until te setpoint is exceeded). Inverted relay operation is functional wen power is applied to te M400 transmitter. Relay No 2 always operates inverted. All oter relays can be configured. Pressing te [ENTER] key again will bring up te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made. 8.5 Alarm / Clean (PATH: Menu / Configure / Alarm / Clean) Enter configuration mode as described in Section 8.1 Enter Configuration Mode. Tis menu allows te configuration of alarm and clean functionality. 8.5.1 Alarm To select Setup Alarm, press te or. key so tat Alarm is flasing. Using te and c buttons, navigate to Use Relay #. Using te or. keys, select a relay to be used for te alarm and press [ENTER]. One of te following events may be alarmed: 1. Power failure 2. Software failure 3. Rg diagnostics ph glass membrane resistance (only for ph and dissolved carbon dioxide sensors) 4. Rr diagnostics ph reference resistance (only for ph sensors) 5. Cond cell open (only for analogue cond 2-e / 4-e sensors) 6. Cond cell sorted (only for analogue cond 2-e / 4-e sensors) 7. Cannel B disconnected (only for ISM sensors) 8. Saft error (only for optical sensors) 9. Signal error (only for optical sensors) 10. Hardware error (only for optical sensors) 11. Cond Ind Defect (only for inductive conductivity sensors) 12. Dry Cond sensor (only for ISM cond sensors) 13. Cell deviation (only for ISM cond sensors)

Transmitter M400 79 If any of tese criteria are set to Yes and te conditions for an alarm are given, te flasing symbol a will be sown in te display, an alarm message will be recorded (see also capter Messages; PATH: Info/Messages) and te selected relay will be activated. Furtermore an alarm can be indicated by te current output if tis as been parameterized (see capter 8.3 Analog outputs ; PATH: Menu/Configure/Analog Outputs) Te conditions for alarms are: 1. Tere is a power failure or power cycling 2. te software watcdog performs a reset 3. Rg is out of tolerance for example, broken measuring electrode (only for ph and dissolved carbon dioxide sensors) 4. Rr is out of tolerance for example, coated or depleted reference electrode (only for ph sensors) 5. If te conductivity sensor is on air (for example in an empty pipe) (only for resistive conductivity sensors) 6. If te conductivity sensor as a sort cut (only for resistive conductivity sensors) 7. If no sensor is connected on cannel B (only for ISM sensors) 8. If te temperature is out of range, stray ligt is too ig (e.g. because a glass fiber is broken) or te saft as been removed (see also capter 11.1 Diagnostics ; PATH: Menu/Service/Diagnostics/O 2 optical) (only for optical sensors) 9. If te signal or te temperature value is out of range (see also capter 11.1 Diagnostics ; PATH: Menu/Service/Diagnostics/O 2 optical) (only for optical sensors) 10. If an ardware error as been detected (see also capter 11.1 Diagnostics ; PATH: Menu/Service/Diagnostics/O 2 optical). (Only for optical sensors) 11. If te sensors is faulty e. g. troug broken wires or a sort cut (only for inductive conductivity sensors) 12. If te conductivity sensor is on air (for example in an empty pipe) (only for ISM conductivity sensors) 13. Cell constant (multiplier) is out of tolerance, i.e. as canged too muc compared to te value tru te factory calibration (only for ISM conductivity sensors) For 1 and 2 te alarm indicator will be turned off wen te alarm message is cleared. It will reappear if te power is constantly cycling or if te watcdog is repeatedly resetting te system. Only for ph sensors For 3 and 4 te alarm indicator will go off if te message is cleared and te sensor as been replaced or repaired so tat te Rg and Rr values are witin specification. If te Rg or Rr message is cleared and Rg or Rr is still out of tolerance ten te alarm will stay on and te message will reappear. Te Rg and Rr alarm can be turned off by going into tis menu and setting Rg diagnostics and / or Rr diagnostics to No. Te message can ten be cleared and te alarm indicator will be off even toug Rg or Rr is out of tolerance. Eac alarm relay can be configured in eiter a Normal or Inverted state. In addition, a Delay for te activation can be set. For more information, refer to Section 8.4 Setpoints. If power failure is turned on, only inverted state is possible and cannot be canged. Pressing te [ENTER] key again will bring up te Save Canges dialog. Selecting No will discard te entered values, selecting Yes will make te entered values te current ones. Note: Tere are additional alarms, wic will be indicated in te display. See terefore in capter 17 Troublesooting te different warning- and alarm lists.

Transmitter M400 80 8.5.2 Clean Configure te relay to be used for te cleaning cycle. Te default value is relay 1. Te cleaning interval can be set from 0.000 to 999.9 ours. Setting it to 0 turns te clean cycle off. Te cleaning time can be 0 to 9999 seconds and must be smaller tan te cleaning interval. Select te desired Relay state: Normal or Inverted. Pressing te [ENTER] key again will bring up te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made. 8.6 ISM set up (available for ph and oxygen ISM sensors) (PATH: Menu / Configure / ISM Setup) Enter Configuration mode as described in Section 8.1. Enter Configuration Mode and navigate to te menu ISM set up by using te or. key. Press [ENTER] 8.6.1 Sensor monitoring Select te menu Sensor Monitoring by pressing [ENTER]. Te sensor monitoring options can be turned on or off and every alarm can be assigned to a certain output relays. Te following options are possible: Lifetime indicator: Te dynamic lifetime indication allows an estimation, wen te ph electrode or te inner body of an amperometric oxygen sensors or te OptoCap of an optical oxygen sensor is at te end of is lifetime, based on te actual stress e is exposed to. Te sensor permanently takes te averaged stress of te past days into consideration and is able to increase / decrease te lifetime accordingly. Lifetime Indicator YES / NO Alarm YES / NO R# coose relay Te following parameters affect te lifetime indicator: Dynamic parameters: Static parameters: Temperature Calibration istory ph or oxygen value Zero and Slope Glass impedance (only ph) Pase 0 and pase 100 (only optical DO) Reference impedance (only ph) Illumination time (only optical DO) CIP / SIP / Autoclaving cycles

Transmitter M400 81 Te sensor keeps te information stored in te built in electronics and can be retrieved via a transmitter or te isense asset management suite. Te alarm will be reset if te Lifetime Indicator is not 0 days anymore (e.g. after connecting a new sensor or canging on te measurement conditions). For amperometric oxygen sensors, te lifetime indicator is related to te inner-body of te sensor. After excanging te inner-body, reset te lifetime indicator as described in capter 8.6.5 Reset ISM counter/timer. For optical DO sensors te lifetime indicator is related to te OptoCap. After excanging te OptoCap, reset te lifetime indicator as described in capter 8.6.5 Reset ISM counter / timer If te Lifetime Indicator is turned on, in te measuring mode te value will be automatically sown in te display on line 3. Press [ENTER] Time to Maintenance (not for optical sensors): Tis timer estimates wen te next cleaning cycle sould be performed to keep te best possible measurement performance. Te timer is influenced by significant canges on te DLI parameters. Time to Maintenance YES / NO Alarm YES / NO R# coose relay Te time to maintenance can be reset to te initial value by te menu Reset ISM Counter Timer (see capter 8.6.5 Reset ISM counter/timer ). For amperometric oxygen sensors, te time to maintenance indicates a maintenance cycle for te membrane and electrolyte. Press [ENTER] Activation of te Adaptive Cal Timer: Tis timer estimates wen te next calibration sould be performed to keep te best possible measurement performance. Te timer is influenced by significant canges on te DLI parameters. Adaptive Cal Timer YES / NO Alarm YES / NO R# coose relay Te Adaptive Calibration Timer will be reset to is initial value after a successful calibration. After a successful calibration will also be te alarm reset. If te Adaptive Cal Timer is turned on, te value will be automatically sown in te display on line 4. Press [ENTER] Te initial value for Time to Maintenance as well as te Adaptive Calibration Timer can be modified according to te application experience and loaded down to te sensor. NOTE: By connecting a sensor, te values for Time to Maintenance and/or Adaptive Calibration Timer are read out by te sensor. Pressing te [ENTER] key again will bring up te Save Canges dialog. Selecting No will discard te entered values and return to te measurement display screen, selecting Yes will save canges made.

Transmitter M400 82 8.6.2 CIP Cycle Limit Navigate to te menu CIP Cycle Limit by using te and. keys and press [ENTER]. Te CIP cycle limit counts te number of CIP cycles. If te limit (user defined) is reaced, an alarm can be indicated and set to a certain output relays. Te following options are possible: CIP Max 000 Alarm YES / NO R# coose relay If te Max setting is on 000, te counter functionality is turned off. Te alarm will be reset after excanging te sensor. For oxygen sensors, te counter can be reset (see capter 8.6.5 Reset ISM counter/timer ). CIP caracteristics: CIP Cycles will be automatically recognized by te sensor. Since CIP cycles will vary in intensity (duration and temperature) for eac application te algoritm of te counter recognizes an increase of te measurement temperature above a certain level (70 C for CIP). If te temperature does not decrease below (60 C for CIP) witin te next 5 minutes after te first temperature was reaced, te counter in question will be incremented by one and also locked for te next two ours. In te case te CIP would last longer tan two ours te counter would be incremented by one once more. Pressing te [ENTER] key will bring up te Save Canges dialog. Selecting No will discard te entered values, selecting Yes will make te entered values te current ones. NOTE: In case of an optical oxygen sensor, te value for CIP Max will also be written to te sensor. Te transmitter M400 uploads te value CIP Max from an optical oxygen sensor after te connection.

Transmitter M400 83 8.6.3 SIP Cycle Limit Navigate to te menu SIP Cycle Limit by using te and. keys and press [ENTER]. Te SIP cycle limit counts te number of SIP cycles. If te limit (user defined) is reaced, an alarm can be indicated and set to a certain output relays. Te following options are possible: SIP Max 000 Alarm YES / NO R# coose relay If te Max setting is on 000, te counter functionality is turned off. Te alarm will be reset after excanging te sensor. For oxygen sensors, te counter can be reset (see capter 8.6.5 Reset ISM counter/timer ). SIP caracteristics: SIP Cycles will be automatically recognized by te sensor. Since SIP cycles will vary in intensity (duration and temperature) for eac application te algoritm of te counter recognizes an increase of te measurement temperature above a certain level (110 C for SIP). If te temperature does not decrease below (100 C for SIP) witin te next 5 minutes after te first temperature was reaced, te counter in question will be incremented by one and also locked for te next two ours. In te case te SIP would last longer tan two ours te counter would be incremented by one once more. Pressing te [ENTER] key will bring up te Save Canges dialog. Selecting No will discard te entered values, selecting Yes will make te entered values te current ones. NOTE: In case of an optical oxygen sensor, te value for SIP Max will also be written to te sensor. Te transmitter M400 uploads te value SIP Max from an optical oxygen sensor after plugging in. 8.6.4 Autoclaving Cycle Limit NOTE: Te transmitter recognizes te connected ISM sensor and offers tis menu only if an autoclavable sensor is connected. Navigate to te menu AutoClave Cycle Limit by using te and. keys and press [ENTER].

Transmitter M400 84 Te Autoclaving Cycle Limit counts te number of autoclaving cycles. If te limit (user defined) is reaced, an alarm can be indicated and set to a certain output relays. Te following options are possible: Autoclave Max 000 Alarm YES / NO R# coose relay If te Max setting is on 000, te counter functionality is turned off. Te alarm will be reset after excanging te sensor. For oxygen sensors, te counter can also be reset manually (see capter 8.6.5 Reset ISM counter/timer ). Autoclave caracteristics: Since during te autoclaving cycle te sensor is not connected to te transmitter, you will be asked after every sensor connection, weter te sensor was autoclaved or not. According to your selection, te counter will be incremented or not. Pressing te [ENTER] key will bring up te Save Canges dialog. Selecting No will discard te entered values, selecting Yes will make te entered values te current ones. NOTE: In case of an optical oxygen sensor, te value for AutoClave Max will be written to te sensor. Te transmitter M400 uploads te value AutoClave Max from an optical oxygen sensor after plugging in. 8.6.5 Reset ISM counter / timer Tis menu allows resetting counter and timer functions wic cannot be reseted automatically. Te adaptive calibration timer will be reseted after a successful adjustment or calibration. Navigate to te menu Reset ISM Counter/Timer by using te and. keys and press [ENTER]. If an ph sensor or amperometric oxygen sensor is connected, te menu for resetting te Time To Maintenance is displayed. Time To Maintenance needs to be reset after te following operations. ph sensors: manual maintenance cycle on te sensor. oxygen sensor: manual maintenance cycle on te sensor or excanging of te inner-body of te sensor [Press ENTER] If an oxygen sensor is connected, te menu for resetting te CIP and SIP counter is displayed. Tese counters sould be reset after te following operations. opitcal sensor: excanging of te OptoCap amperometrical sensor: excanging of te inner-body of te sensor. [Press ENTER]

Transmitter M400 85 If an oxygen sensor is connected, te menu for resetting te AutoClave Counter and Life Time Indicator is displayed. Tese parameters sould be reset after te following operations. optical sensor: excanging of te OptoCap amperometrical sensor: excanging of te inner-body of te sensor. Pressing te [ENTER] key will bring up te Save Canges dialog. Selecting No will discard te entered values, selecting Yes will make activate entered values. 8.7 Display (PATH: Menu / Configure / Display) Enter configuration mode as described in Section 8.1 Enter Configuration Mode. Tis menu allows for te configuration of te values to be displayed and also te configuration of te display itself. 8.7.1 Measurement Te display as 4 lines. Line 1 on top and Line 4 on te bottom. Select te values (Measurement a, b, c or d) to be displayed on eac line of te display. Te selection of te values for a, b, c, d needs to be done under Configuration / measurement / Cannel Setup. Select te Error Display mode. If tis is set to On wen an alarm or warning as occurred, te message Failure Press ENTER will be displayed on Line 4 wen an alarm occurs in te normal measurement mode. Pressing te [ENTER] key again will bring up te Save Canges dialog. Selecting No will discard te entered values, selecting Yes will make te entered values te current ones. 8.7.2 Resolution Tis menu allows te setting of te resolution of eac displayed value. Te accuracy of te measurement is not effected by tis setting.

Transmitter M400 86 Possible settings are 1, 0.1, 0.01, 0.001 or Auto. Pressing te [ENTER] key will bring up te Save Canges dialog. 8.7.3 Backligt Tis Menu allows te setting of te back ligt options of te display. Possible settings are On, On 50% or Auto Off 50%. If Auto Off 50% is selected ten te backligt will go to 50% after 4 minutes wit no keypad activity. Te backligt will automatically come back on if a key is pressed. Pressing te [ENTER] key will bring up te Save Canges dialog. 8.7.4 Name Tis menu allows for te configuration of an alpa-numeric name wic is displayed in te first 9 caracters on lines 3 and 4 of te display. Te default is noting (blank). If a name is entered on line 3 and / or 4 a measurement can be still displayed on te same line. Use te and c keys to navigate between digits to be altered. Using te and. keys to cange te caracter to be displayed. Once all digits of bot display cannels ave been entered, press [ENTER] to bring up te Save Canges dialog. Te resulting display in te measurement mode appears on lines 3 and 4 aead of te measurements. 8.7.5 ISM sensor monitoring (available wen ISM sensor connected) Te sensor monitoring allows you to display te sensor monitoring details on line 3 and 4 in te display. Te following options are possible: Line 3 Off / Time Indicator / Time to Maint / Adapt Cal Timer Line 4 Off / Time Indicator / Time to Maint / Adapt Cal Timer

Transmitter M400 87 8.8 Hold analog outputs (PATH: Menu / Configure / Hold Outputs) Enter configuration mode as described in Section 8.1 Enter Configuration Mode. Te Hold outputs function applies during te calibration process. If set Hold outputs to Yes, during calibration process te analog output, te output relay and USB output will be at old state. Te old state depends on te setting. For te possible old settings, see te list below. Te following options are possible: Hold Outputs? Yes / No Te DigitalIn function applies all te time. As soon as a signal is active on te digital input te transmitter goes to old mode and te values on te analog output, te output relays and te USB output will be at old state. DigitalIn1 / 2 State = Off / Low / Hig NOTE: DigitalIn1 is to old cannel A (conventional sensor) DigitalIn2 is to old cannel B (ISM sensor) Possible Hold states: Output relays: On / Off (Configuration / Set point) Analog Output: Last / Fixed (Configuration / Analog output) USB: Last / Off (System / USB) PID relay Last / Off (PID setup/mode) PID analog Last / Off (PID setup/mode)

Transmitter M400 88 9 System (PATH: Menu / System) System Set Language USB Passwords Set/Clear Lockout Reset Set Date & Time Wile in measurement mode press te key. Press te. or key to navigate to System Menu and press [ENTER]. 9.1 Set Language (PATH: Menu / System / Set Language) Tis menu allows te configuration of te display language. Te following selections are possible: Englis, Frenc, German, Italian, Spanis, Portuguese, Russian or Japanese (Katakana). Pressing te [ENTER] key will bring up te Save Canges dialog. 9.2 USB (PATH: Menu / System / USB) Tis menu allows configuration of te USB old function. USB old may be set to eiter Off or Last Values. An external ost device may poll te M400 for data. If te USB old is set to Off, current values are returned. If te USB old is set to Last Values, te values present at te time te old condition was establised are returned. Press [ENTER] to bring up te Save Canges dialog.

Transmitter M400 89 9.3 Passwords (PATH: Menu / System / Passwords) Tis menu allows for te configuration of operator and administrator passwords, as well as setting up a list of allowed menus for te operator. Te administrator as rigts to access all menus. All default passwords for new transmitters are 00000. Te passwords menu is protected: Enter te administrator password to enter te menu. 9.3.1 Canging passwords See Section 9.3 on ow to enter te passwords menu. Select Cange Administrator or Cange Operator and set te new password. Press te [ENTER] key and confirm te new password. Press [ENTER] again to bring up te Save Canged dialog. 9.3.2 Configuring menu access for operator See 9.3 on ow to enter te passwords Menu. Select Configure Operator to configure te access list for te operator. It is possible to assign / deny rigts to te following menus: Cal Key, Quick Setup, Configuration, System, PID Setup and Service. Coose eiter Yes or No to give / deny access to te above menus and press [ENTER] to advance to te next items. Pressing te [ENTER] key after configuring all menus will bring up te Save Canges dialog. Selecting No will discard te entered values, selecting Yes will make te entered values te current ones.

Transmitter M400 90 9.4 Set / Clear lockout (PATH: Menu / System / Set / Clear Lockout) Tis menu enables / disables te lockout functionality of te transmitter. Te user will be asked for a password before being allowed into any menus if te lockout functionality is enabled. Te lockout-menu is protected: Enter te administrator or operator password and select YES to enable or NO to disable te lockout functionality. Pressing te [ENTER] key after te selection will bring up te Save Canges dialog. Selecting No will discard te entered value, selecting Yes will make te entered value te current one. 9.5 Reset (PATH: Menu / System / Reset) Tis menu allows access to te following options: Reset System, Reset Meter Cal, Reset Analog Cal. 9.5.1 Reset system Tis menu allows te reset of te meter to te factory default settings (setpoints off, analog outputs off, etc.). Te meter calibration and te analog output calibration are not affected. Pressing te [ENTER] key after te selection will bring up a confirmation screen. Selecting No will return te user to te measurement mode wit no canges. Selecting Yes will reset te meter. 9.5.2 Reset meter calibration Tis menu allows te reset of te meter s calibration factors to te last factory calibration values. Pressing te [ENTER] key after te selection will bring up a confirmation screen. Selecting No will return te user to te measurement mode wit no canges. Selecting Yes will reset te meter calibration factors.

Transmitter M400 91 9.5.3 Reset analog calibration Tis menu allows reset of te analog output calibration factors to te last factory calibration values. Pressing te [ENTER] key after te selection will bring up a confirmation screen. Selecting No will return te user to te measurement mode wit no canges. Selecting Yes will reset te analog output calibration. 9.5.4 Reset sensor calibration (for optical sensors only) If an optical oxygen sensor is connected to te transmitter, tis menu is available. Te menu allows te reset of te calibration data of te sensors to te factory settings. Pressing te [ENTER] key after te selection will bring up a confirmation screen. Selecting No will return te user to te Measurement mode wit no canges. Selecting Yes will reset te calibration data of te sensor to factory settings. NOTE: Tru a reset of te calibration data te Adaptive Calibration Timer (see capter 8.6.1 Sensor monitoring ) will set to 0. NOTE: To ensure best measuring results, a new calibration of te sensor is recommended after a reset of te calibration data to factory settings. Depending on te application resp. sensor, te calibration sould be performed as a one point calibration or two point calibration (see capter 7.5 Calibration of optical oxygen sensors ) 9.6 Set date & time Please enter te actual date and time. Te following options are possible. Tis function is automatically activated at every power-up. Date (YY-MM-DD): Time (HH:MM:SS):

Transmitter M400 92 10 PID setup (PATH: Menu / PID Setup) PID Setup PID A/M Tune Parameters Mode PID Display Setup PID control is proportional, integral and derivative control action tat can provide smoot regulation of a process. Before configuring te transmitter, te following process caracteristics must be identified. Identify te control direction of te process Conductivity: Dilution direct acting were increasing measurement produces increasing control output suc as controlling te feed of low conductivity diluting water to rinse tanks, cooling towers or boilers Concentrating reverse acting were increasing measurement produces decreasing control output, suc as controlling cemical feed to attain a desired concentration Dissolved Oxygen: Deaeration direct acting were increasing DO concentration produces increasing control output suc as controlling te feed of a reducing agent to remove oxygen from boiler feedwater Aeration reverse acting were increasing DO concentration produces decreasing control output, suc as controlling an aerator blower speed to maintain a desired DO concentration in fermentation or wastewater treatment ph / ORP: Acid feed only direct acting were increasing ph produces increasing control output, also for ORP reducing reagent feed Base feed only reverse acting were increasing ph produces decreasing control output, also for ORP oxidizing reagent feed Bot acid and base feed direct and reverse acting Identify te control output type based on te control device to be used: Pulse frequency used wit pulse input metering pump Pulse lengt used wit solenoid valve Analog used wit current input device suc as electric drive unit, analog input metering pump or current-to-pneumatic (I / P) converter for pneumatic control valve Default control settings provide linear control, wic is appropriate for conductivity, dissolved oxygen. Terefore, wen configuring PID for tese parameters (or simple ph control) ignore settings of deadband and corner points in te tuning parameter section below. Te non-linear control settings are used for more difficult ph / ORP control situations. If desired, identify te non-linearity of te ph / ORP process. Improved control can be obtained if te non-linearity is accommodated wit an opposing non-linearity in te controller. A titration curve (grap of ph or ORP vs. reagent volume) made on a process sample provides te best information. Tere is often a very ig process gain or sensitivity near te setpoint and decreasing gain furter away from te setpoint. To counteract tis, te instrument allows for adjustable non-linear control wit settings of a deadband around te setpoint, corner points furter out and proportional limits at te ends of control as sown in te figure below.

Transmitter M400 93 Determine te appropriate settings for eac of tese control parameters based on te sape of te ph process titration curve. YP Error (%) Controller wit Corner Points Proportional limit +100% value 120% 100% 80% 60% Direct corner point (value, %) 40% Set point value 20% Deadband + value 0% Deadband - value 20% Reverse corner point (value, %) 40% 60% 80% 100% Proportional limit 100% value 120% 0 2 4 6 8 10 12 14 Process Variable 10.1 Enter PID setup Wile in measurement mode press te key. Press te or. key to navigate to te PID Setup-menu and press [ENTER]. 10.2 PID auto / manual (PATH: MENU / PID Setup / PID A / M) Tis menu allows selection of automatic or manual operation. Select Auto or Manual operation. Pressing te [ENTER] key will bring up te Save Canges dialog.

Transmitter M400 94 10.3 Mode (PATH: MENU / PID Setup / Mode) Tis menu contains te selection of control modes using relays or analog outputs. Press [ENTER]. 10.3.1 PID mode Tis menu assigns a relay or analog output for PID control action as well as details of teir operation. Based on te control device being used, select one of te following tree paragraps for use wit solenoid valve, pulse input metering pump or analog control. Pulse Lengt If using a solenoid valve, select Relays and PL, pulse lengt. Coose te first relay position as #3 (recommended) and / or te second relay position as #4 (recom mended) as well as te pulse lengt (PL) according to te table below. A longer pulse lengt will reduce wear on te solenoid valve. Te % on time in te cycle is proportional to te control output. NOTE: All relays from #1 to #6 can be used for te controlling function. 1 st Relay Position (#3) 2 nd Relay Position (#4) Pulse Lengt (PL) Conductivity Controlling concentrating reagent feed Controlling dilution water ph / ORP Feeding base Feeding acid Dissolved Oxygen Reverse control action Direct acting control action Sort (PL) provides more uniform feed. Suggested start point = 30 sec Reagent addition cycle: sort PL provides more uniform addition of reagent. Suggested start point = 10 sec Feed cycle time: sort PL provides more uniform feed. Suggested start point = 30 sec

Transmitter M400 95 Pulse Frequency If using a pulse input metering pump, select Relays and PF, pulse frequency. Coose te first relay position as #3 and / or te second relay position as #4 according to te table below. Set te pulse frequency to te maximum frequency allowed for te particular pump being used, typically 60 to 100 pulses / minute. Control action will produce tis frequency at 100% output. NOTE: All relays from #1 to #6 can be used for te controlling function. CAUTION: Setting te pulse frequency too ig may cause te pump to overeat. Conductivity 1 st Relay Position = #3 2 nd Relay Position = #4 Pulse Frequency (PF) Controlling concentrating cemical feed Controlling dilution water ph / ORP Feeding base Feeding acid Dissolved Oxygen Reverse control action Direct acting control action Max allowed for te pump used (typically 60 100 pulses / minute) Max allowed for te pump used (typically 60 100 pulses / minute) Max allowed for te pump used (typically 60 100 pulses / minute) Analog If using analog control, cange Relays to Analogout using up / down arrow keys. Coose te first Analogout position as #1 and / or te second Analogout position as #2 according to te table below. Select te analog output current range required by te control device, 4 20 or 0 20 ma. Press [ENTER]. 1 st Analogout Position = #1 2 nd Analogout Position = #2 Conductivity Controlling concentrating cemical feed Controlling dilution water ph / ORP Feeding base Feeding acid Dissolved Oxygen Reverse control action Direct acting control action 10.4 Tune parameters (PATH: MENU / PID Setup / Tune Parameters) Tis menu assigns control to a measurement and sets te setpoint, tuning parameters and nonlinear functions of te controller troug a series of screens.

Transmitter M400 96 10.4.1 PID assignment & tuning Assign te measurement, a, b, c, or d to be controlled after PID on_. Set te Gain (unitless), integral or reset time Tr (minutes) and rate or derivative time Td (minutes) needed for control. Press [ENTER]. Gain, reset and rate are later adjusted by trial and error based on process response. Always begin wit Td at zero. 10.4.2 Setpoint & deadband Enter te desired setpoint value and te deadband around te setpoint, were no proportional control action will take place. Be sure to include te units multiplier µ or m for conductivity. Press [ENTER]. 10.4.3 Proportional limits Enter te low and ig proportional limits te range over wic control action is required. Be sure to include te units multiplier µ or m for conductivity. Press [ENTER]. 10.4.4 Corner points Enter te low and ig corner points in conductivity, ph, dissolved oxygen units and te respective output values from 1 to +1, sown in te figure as 100 to +100%. Press [ENTER]. 10.5 PID display (PATH: Menu / PID Setup / PID Display Setup) Tis screen enables display of PID control status in te normal measurement mode. Wen PID Display is selected, te status (Man or Auto) and control output (%) will be displayed on te bottom line. If controlling ph, te reagent will also be displayed. In addition, for te display to be enabled, a measurement must be assigned under Tune Parameters and a relay or analog output must be assigned under Mode. In manual, te control output may be adjusted wit te up and down arrow keys. (Te Info key function is not available in manual.)

Transmitter M400 97 11 Service (PATH: Menu / Service) Service Calibrate Tec Service Diagnostics Wile in measurement mode press te key. Press te or. key to navigate to te Service menu and press [ENTER]. Te available system configuration options are detailed below. 11.1 Diagnostics (PATH: Menu / Service / Diagnostics) Tis menu is a valuable tool for troublesooting and provides diagnostic functionality for te following items: Model / Software Revision, Digital Input, Display, Keypad, Memory, Set Relays, Read Relays, Set Analog Outputs, Read Analog Outputs. 11.1.1 Model / Software revision Essential information for every Service call is te model and software revision number. Tis menu sows te part number, model and te serial number of te transmitter. By using te. key it is possible to navigate forward troug tis menu and get additional information like te current version of firmware implemented on te transmitter: (Master V_XXXX and Comm V_XXXX); and if an ISM sensor is connected te version of te sensor firmware (FW V_XXX) and sensor ardware (HW XXXX). Press [ENTER] to exit from tis display.

Transmitter M400 98 11.1.2 Digital input Te digital input menu sows te state of te digital inputs. Press [ENTER] to exit from tis display. 11.1.3 Display All pixels of te display will be lit for 15 seconds to allow troublesooting of te display. After 15 seconds te transmitter will return to te normal measuring mode or press [ENTER] to exit sooner. 11.1.4 Keypad For keypad diagnostics, te display will indicate wic key is pressed. Pressing [ENTER] will return te transmitter to te normal measuring mode. 11.1.5 Memory If Memory is selected ten te transmitter will perform a RAM and ROM memory test. Test patterns will be written to and read from all RAM memory locations. Te ROM cecksum will be recalculated and compared to te value stored in te ROM.

Transmitter M400 99 11.1.6 Set Relay Te Set Relays diagnostic menu allows to open or close eac relay manually. To access relays 5 and 6, press [ENTER]. 0 = open te relay 1 = close te relay Press [ENTER] to return to Measurement mode. 11.1.7 Read relays Te Read Relays diagnostic menu sows te state of eac relay as defined below. To display relays 5 and 6, press [ENTER]. Press [ENTER] again to exit from tis display. 0 = Normal 1 = Inverted. 11.1.8 Set analog outputs Tis menu enables te user to set all analog outputs to any ma value witin te 0 22 ma range. Press [ENTER] to exit from tis display. 11.1.9 Read analog outputs Tis menu sows te ma value of te analog outputs.

Transmitter M400 100 Press [ENTER] to exit from tis display. 11.1.10 0 2 Optical Tis menu sows te state and conditions regarding te optical O 2 sensor. By using te key or. it is possible to navigate troug tis menu and get additional information. Press [ENTER] to exit from tis display. 11.2 Calibrate (PATH: Menu / Service / Calibrate) Enter Service Menu as described in section 11.1 Enter Service Menu, select Calibrate, and press [ENTER]. Tis menu as te options to calibrate te transmitter and te analog outputs and also allows te unlocking of calibration functionality. 11.2.1 Calibrate meter (only for cannel A) Te M400 transmitter is factory calibrated witin specifications. It is not normally necessary to perform meter re-calibration unless extreme conditions cause an out of spec operation sown by Calibration Verification. Periodic verification / re-calibration may also be necessary to meet Q.A. requirements. Meter calibration can be selected as current (used for most dissolved oxygen, Voltage, Rg Diagnostic, Rr Diagnostic (used for ph), and temperature (used for all measurements). 11.2.1.1 Temperature Temperature is performed as a tree point calibration. Te table above sows te resistance values of tese tree points. Navigate to te Calibrate Meter screen and coose Temperature calibration for Cannel A. Press [ENTER] to begin temperature calibration process Te first text line will ask for te Point 1 temperature resistance value (tis will correspond to temperature 1 value sown on te calibration module accessory). Te second text line will sow te measured resistance value. Wen te value stabilizes, press [ENTER] to perform calibration.

Transmitter M400 101 Te transmitter screen will ten prompt te user to enter te value for Point 2, and T2 will display te measured resistance value. Wen tis value stabilizes, press [ENTER] to calibrate tis range. Repeat tese steps for Point 3. Press [ENTER] to bring up a confirmation screen. Select Yes to save te calibration values and te successful calibration is confirmed on te display. Te transmitter will return to te measurement mode in approximately 5 seconds. 11.2.1.2 Current Current calibration is preformed as a two point calibration. Navigate to te Calibrate Meter screen and select Cannel A. Enter te value for Point 1, in milliamps, of te current source connected to te input. Te second display line will sow te measured current. Press [ENTER] to begin te calibration process. Enter te value for Point 2, in milliamps, of te current source connected to te input. Te second display line sows te measured current. Pressing te [ENTER] key after entering Point 2 will bring up a confirmation screen. Select Yes to save te calibration values and te successful calibration is confirmed on te display. Te transmitter will return to te measurement mode in approximately 5 seconds.

Transmitter M400 102 11.2.1.3 Voltage Voltage calibration is preformed as a two point calibration. Navigate to te Calibrate Meter screen and select Cannel A and Voltage. Enter te value for Point 1 in, volts, connected to te input. Te second display line will sow te measured voltage. Press[ENTER] to begin te calibration process. Enter te value for Point 2, in volts, of te source connected to te input. Te second display line sows te measured voltage. Pressing te [ENTER] key after entering Point 2 will bring up a confirmation screen. Select Yes to save te calibration values and te successful Calibration is confirmed on te display. Te transmitter will return to te measurement mode in approximately 5 seconds. 11.2.1.4 Rg diagnostic Rg diagnostic is performed as a two point calibration. Navigate to te Calibrate Meter screen and select Cannel A and Rg Diagnostic. Enter te value for Point 1 of te calibration according to te resistor connected across te ph glass electrode measuring input. Press [ENTER] to begin te calibration process. Enter te value for Point 2 of te calibration according to te resistor connected across te ph glass electrode measuring input. Pressing te [ENTER] key after entering Point 2 will bring up a confirmation screen. Select Yes to save te calibration values and te successful calibration is confirmed on te display. Te transmitter will return to te measurement mode in approximately 5 seconds.

Transmitter M400 103 11.2.1.5 Rr diagnostics Rr diagnostic is performed as a two point calibration. Navigate to te Calibrate Meter screen and select Cannel A and Rr Diagnostic. Enter te value for Point 1 of te calibration according to te resistor connected across te ph reference measuring input. Press [ENTER] to begin te calibration process. Enter te value for Point 2 of te calibration according to te resistor connected across te ph reference measuring input. Pressing te [ENTER] key after entering Point 2 will bring up a confirmation screen. Select Yes to save te calibration values and te successful calibration is confirmed on te display. Te transmitter will return to te measurement mode in approximately 5 seconds. 11.2.1.6 Calibrate analog Select te Analog Output you wis to calibrate. Eac analog output can be calibrated at 4 and 20 ma. Connect an accurate milliamp meter to te analog output terminals and ten adjust te five digit number in te display until te milliamp meter reads 4.00 ma and repeat for 20.00 ma. As te five digit number is increased te output current increases and as te number is decreased te output current decreases. Tus coarse canges in te output current can be made by canging te tousands or undreds digits and fine canges can be made by canging te tens or ones digits. Pressing te [ENTER] key after entering bot values will bring up a confirmation screen. Selecting No will discard te entered values, selecting Yes will make te entered values te current ones.

Transmitter M400 104 11.2.2 Calibrate unlock Select tis Menu to configure te CAL Menu, see Section 7. Selecting Yes means tat meter and analog output calibration menus will be selectable under te CAL Menu. Selecting No means tat only te sensor calibration is available under te CAL Menu. Press [ENTER] after te selection to display a confirmation screen. 11.3 Tec Service (PATH: Menu / Tec Service) Note: Tis menu is for Mettler Toledo service personnel use only.

Transmitter M400 105 12 Info (PATH: Info) Info Messages Calibration Data Model/Software Revision ISM Sensor Info* ISM Diagnostics* * Only available in combination wit ISM sensors Pressing te. key will display te Info menu wit te options Messages, Calibration Data and Model / Software Revision. 12.1 Messages (PATH: Info / Messages) Te most recent message is displayed. Te up and down arrow keys allow scrolling troug te last four messages tat ave occurred. Clear Messages clears all te messages. Messages are added to te message list wen te condition tat generates te message first occurs. If all messages are cleared and a message condition still exists and started before te clear ten it will not appear in te list. For tis message to re-occur in te list te condition must go away and ten reappear. Press [ENTER] to exit from tis display. 12.2 Calibration data (PATH: Info / Calibration Data) Selecting Calibration Data displays te calibration constants for eac sensor. P = calibration constants for te primary measurement S = calibration constants for te secondary measurement Press [ENTER] to exit from tis display.

Transmitter M400 106 12.3 Model / Software revision (PATH: Info / Model/Software Revision) Selecting Model / Software Revision will display te part number, model and te serial number of te transmitter. By using te. key it is possible to navigate forward troug tis menu and get additional information like te current version of firmware implemented on te transmitter (Master V_XXXX and Comm V_XXXX) and if an ISM sensor is connected te version of te sensor firmware (FW V_XXX) and sensor ardware (HW XXXX). Te displayed information is important for any Service call. Press [ENTER] to exit from tis display. 12.4 ISM sensor info (available wen ISM sensor connected) (PATH: Info / ISM Sensor Info) After plugging in an ISM sensor it is possible by using te key or. to navigate to te Menu ISM Sensor Info. Press [ENTER] to select te menu. Te following information about te sensor will be sown in tis menu. Use up and down arrows to scroll in te menu. Type: Type of sensor (e.g. InPro 3250) Cal Date: Date of te last adjustment Serial-No.: Serial number of te connected sensor Part-No.: Part number of te connected sensor Press [ENTER] to exit from tis display. 12.5 ISM sensor diagnostics (available wen ISM sensor connected) (PATH: Info / ISM Diagnostics) After plugging in an ISM sensor it is possible by using te key or. to navigate to te Menu ISM Diagnostics. Press [ENTER] to select te menu. Navigate to one of te menus, described in tis section, and press [ENTER] again.

Transmitter M400 107 Cal History Te calibration istory is stored wit a time stamp in te ISM sensor and is displayed on te transmitter. Te calibration istory offers te following information: Fact (Factory calibration): Tis is te original dataset, determined in te factory. Tis dataset remains stored in te sensor for reference and cannot be overwritten. Act (Actual adjustment): Tis is te actual calibration dataset wic is used for te measurement. Tis dataset moves to Cal-2 position after te next adjustment. 1. Adj (First adjustment): Tis is te first adjustment after te factory calibration. Tis dataset remains stored in te sensor for reference and cannot be overwritten Cal-1 (last calibration / adjustment): Tis is te last executed calibration / adjustment. Tis dataset moves to Cal-2 and ten to Cal-3 wen a new calibration / adjustment is performed. Afterwards, te dataset is not available anymore. Cal-2 and Cal-3 acting in te same way as Cal-1. Definition: Adjustment: Te calibration procedure is completed and te calibration values are taken over and used for te measurement (Act) and stated in Cal-1. Te current values from Act will move to Cal-2. Calibration: Te calibration procedure is completed, but te calibration values will not be overtaken and te measurement continuous wit te last valid adjustment dataset (Act). Te dataset will be stored under Cal-1. Te calibration istory is used for te estimation of te lifetime indicator for ISM sensors. Press [ENTER] to exit from tis display. Note: Tis function requires te correct setting of date and time during calibration and / or adjustment tasks (see capter 9.6 Set date & time ). Sensor monitoring (not available for Cond 4-e sensor) Te sensor monitoring sows te different diagnostics functions available for eac ISM sensor. Te following information is available: Lifetime Indicator: Sows an estimation of te remaining lifetime to ensure a reliable measurement. Te lifetime is indicated in days (d) and percentage (%). For a description of te Lifetime indicator, please see section 8.6 ISM Setup. For oxygen sensors, te lifetime indicator is related to te inner-body of te sensor or te OptoCap for optical sensors. If you want to bring te bar indicator on te screen, see capter 8.7.5 ISM sensor monitoring to activate ISM functions. Adaptive Cal Timer: Tis timer sows a Adaptive Cal Timer, wen te next calibration sould be performed to keep te best possible measurement performance. Te Adaptive Cal Timer is indicated in days (d) and percentage (%). For a description of te Adaptive Cal Timer, please see section 8.6 ISM Setup.

Transmitter M400 108 Time to Maintenance: Tis timer sows a Time to Maintenance, wen te next cleaning cycle sould be performed to keep te best possible measurement performance. Te Time to Maintenance is indicated in days (d) and percentage (%). For a description of te Time to Maintenance, please see section 8.6 ISM Setup. For oxygen sensors, te Time to Maintenance indicates a maintenance cycle for te membrane and electrolyte. Press [ENTER] to exit from tis display. Max. Temperature Te maximum temperature sows te maximum temperature tat tis sensor as ever seen, togeter wit a time stamp of tis maximum. Tis value is stored on te sensor and cannot be canged. During autoclaving te Max temperature is not recorded. Max. Temperature Tmax XXX C YY / MM / DD Press [ENTER] to exit from tis display. Note: Tis function requires te correct setting of date and time of te transmitter. (see capter 9.6 Set date & time ) CIP Cycles Sows te amount of CIP cycles tat te sensor as been exposed to. For a description of te CIP Cycle indicator, please see section 8.6 ISM Setup CIP Cycles xxx of xxx Press [ENTER] to exit from tis display. SIP Cycles Sows te amount of SIP cycles tat te sensor as been exposed to. For a description of te SIP Cycle indicator, please see section 8.6 ISM Setup SIP Cycles xxx of xxx Press [ENTER] to exit from tis display. Autoclaving Cycles Sows te amount of Autoclaving cycles tat te sensor as been exposed to. For a description of te AutoClave Cycle indicator, please see section 8.6 ISM Setup Autoclaving Cycles xxx of xxx Press [ENTER] to exit from tis display.

Transmitter M400 109 13 Maintenance 13.1 Front panel cleaning Clean te front panel wit a damp soft clot (water only, no solvents). Gently wipe te surface and dry wit a soft clot.

Transmitter M400 110 14 Troublesooting If te equipment is used in a manner not specified by Mettler-Toledo Tornton, Inc., te protection provided by te equipment may be impaired. Review te table below for possible causes of common problems: Problem Display is blank. Incorrect measurement readings. Measurement readings not stable. Displayed a is flasing. Possible Cause No power to M400. Blown fuse. LCD display contrast set incorrectly. Hardware failure. Sensor improperly installed. Incorrect units multiplier entered. Temperature compensation incorrectly set or disabled. Sensor or transmitter needs calibration. Sensor or patc cord defective or exceeds recommended maximum lengt. Hardware failure. Sensors or cables installed too close to equipment tat generates ig level of electrical noise. Recommended cable lengt exceeded. Averaging set too low. Sensor or patc cord defective. Setpoint is in alarm condition (setpoint exceeded). Alarm as been selected (see capter 8.5.1 Alarm ) and occurred. Cannot cange menu settings. User locked out for security reasons. 14.1 Canging te fuse Make sure tat te mains cable is unplugged before canging te fuse. Tis operation sould only be carried out by personnel familiar wit te transmitter and wo are qualified for suc work. If te power consumption of te M400 transmitter is too ig or a manipulation leads to a sort circuit te fuse will blow. In tis case remove te fuse and replace it wit one specified in section 15 Accessories and Spare Parts.

Transmitter M400 111 14.2 Cond (resistive) Error messages / Warning- and Alarm list for analog sensors Alarms Watcdog time-out* Cond Cell open* Cond Cell sorted* Description SW/System fault Cell running dry (no measurement solution) or wires are broken Sort circuit caused by sensor or cable * According to te parameterization of te transmitter (see capter 8.5.1 Alarm ; PATH: Menu/Configure/Alarm/Clean/Setup Alarm) 14.3 Cond (resistive) Error messages / Warning- and Alarm list for ISM sensors Alarms Watcdog time-out* Dry Cond sensor* Cell deviation* Description SW/System fault Cell running dry (no measurement solution) Multiplier out of tolerance** (depends on sensor model). * According to te parameterization of te transmitter (see capter 8.5.1 Alarm ; PATH: Menu/Configure/Alarm/Clean/Setup Alarm) ** For furter information refer to te sensor documentation 14.4 Cond (inductive) Error messages / Warning- and Alarm list Alarms Watcdog time-out* Send side open* Send side sort circ.* Receive side open* Description SW/System fault Wires for sending coil are broken or sensor defect Sort circuit caused by sensor or cable for te sending coil Wires for receiving coil are broken or sensor defect * According to te parameterization of te transmitter (see capter 8.5.1 Alarm ; PATH: Menu/Configure/Alarm/Clean/Setup Alarm)

Transmitter M400 112 14.5 ph Error messages / Warning- and Alarm list Warnings Description Warning ph slope >102% Slope too big Warning ph Slope < 90% Slope too small Warning ph Zero > 7.5 ph Zero offset too big Warning ph Zero < 6.5 ph Zero offset too small Warning phgls cange < 0.3 Glass electrode resistance canged by more tan factor 0.3 Warning phgls cange > 3 Glass electrode resistance canged by more tan factor 3 Warning phref cange < 0.3 Reference electrode resistance canged by more tan factor 0.3 Warning phref cange > 3 Reference electrode resistance canged by more tan factor 3 Alarms Watcdog time-out* Error ph Slope >103% Error ph Slope < 80% Error ph Zero > 8.0 ph Error ph Zero < 6.0 ph Error ph Ref Res >150 KΩ* Error ph Ref Res < 2000 Ω* Error ph Gls Res > 2000 MΩ* Error ph Gls Res < 5 MΩ* Description SW/System fault Slope too big Slope too small Zero offset too big Zero offset too small Reference electrode resistance too big (break) Reference electrode resistance too small (sort) Glass electrode resistance too big (break) Glass electrode resistance too small (sort) * According to te parameterization of te transmitter (see capter 8.5.1 Alarm ; PATH: Menu/Configure/Alarm/Clean/Setup Alarm)

Transmitter M400 113 14.6 Amperometric O 2 Error messages / Warning- and Alarm list Warnings Warning O 2 Slope < 90 na Warning O 2 Slope > 35 na Warning O 2 ZeroPt > 0.3 na Warning O 2 ZeroPt < 0.3 na Description Slope too big Slope too small Zero offset too big Zero offset too small Alarms Watcdog time-out* Error Install O 2 Jumper Error O 2 Slope < 110 na Error O 2 Slope > 30 na Error O 2 ZeroPt > 0.6 na Error O 2 ZeroPt < 0.6 na Description SW/System fault In case of using InPro 6900 a jumper as to be installed (see capter: Connection of Sensor Dissolved Oxygen) Slope too big Slope too small Zero offset too big Zero offset too small 14.7 Optical O 2 Error messages / Warning- and Alarm list Warnings Cx Cal Required* Cx CIP Counter Expired Cx SIP Counter Expired Cx Autocl. Count. Exp. Description ATC = 0 or measured values out of range Limit of CIP cycles reaced Limit of SIP cycles reaced Limit of autoclaving cycles reaced * If tis warning is displayed, you will find more information about te cause for te warning in Menu/Service/Diagnostics/O 2 optical Alarms Watcdog time-out* Cx Cange Spot** Cx Signal error** Cx Saft error** Cx Hardware error** Description SW/System fault Replace OptoCap Signal or value for temperature out of range Temperature bad or stray ligt too ig (e.g. because a glass is fiber broken) or saft as been removed Electronic components fail ** According to te parameterization of te transmitter (see capter 8.5.1 Alarm ; PATH: Menu/Configure/Alarm/Clean/Setup Alarm) If an alarm as occurred, you will find more information about te cause for te alarm in Menu/Service/Diagnostics/O 2 optical

Transmitter M400 114 14.8 ISFET Error messages / Warning- and Alarm list Warnings Warning ph slope >102% Warning ph Slope < 90% Warning ph Zero >7.5 ph Warning ph Zero < 6.5 ph Description Slope too big Slope too small Zero offset too big Zero offset too small Alarms Watcdog time-out* Error ph Slope >103% Error ph Slope < 80% Error ph Zero > 8.0 ph Error ph Zero < 6.0 ph Description SW/System fault Slope too big Slope too small Zero offset too big Zero offset too small * According to te parameterization of te transmitter (see capter 8.5.1 Alarm ; PATH: Menu/Configure/Alarm/Clean/Setup Alarm). 14.9 Dissolved carbon dioxide Error messages / Warning- and Alarm list Warnings Description Warning ph slope >102% Slope too big Warning ph Slope < 90% Slope too small Warning ph Zero >7.5 ph Zero offset too big Warning ph Zero < 6.5 ph Zero offset too small Warning phgls cange < 0.3 Glass electrode resistance canged by more tan factor 0.3 Warning phgls cange > 3 Glass electrode resistance canged by more tan factor 3 Alarms Watcdog time-out* Error ph Slope >103% Error ph Slope < 80% Error ph Zero > 8.0 ph Error ph Zero < 6.0 ph Error ph Gls Res > 2000 MΩ* Error ph Gls Res < 5 MΩ* Description SW/System fault Slope too big Slope too small Zero offset too big Zero offset too small Glass electrode resistance too big (break) Glass electrode resistance too small (sort) * According to te parameterization of te transmitter (see capter 8.5.1 Alarm ; PATH: Menu/Configure/Alarm/Clean/Setup Alarm).

Transmitter M400 115 14.10 Warning- and Alarm indication on te display 14.10.1 Warning indication If tere are conditions, wic generate a warning, te message will be recorded and can be selected troug te menu Messages (PATH: Info / Messages; see also capter 12.1 Messages ). According to te parameterisation of te transmitter te int Failure Press ENTER will be sown at line 4 of te display, if a warning or alarm as occurred (see also capter 8.7 Display ; PATH: Menu/Configure/Display/Measurement). 14.10.2 Alarm indication Alarms will be sown in te display by a flasing symbol a and recorded troug te menu point Messages (PATH: Info/Messages; see also capter 12.1 Messages ). Furtermore te detection of some alarms can be activated or deactivated (see capter 8.5 Alarm/Clean ; PATH: Menu/Configure/Alarm/Clean) for an indication on te display. If one of tese alarms occurs and te detection as been activated, te flasing symbol a will be sown on te display and te message will be recorded troug te menu Messages (see capter 12.1 Messages ; PATH: Info / Messages). Alarms wic are caused by a violation of te limitation of a setpoint or te range (see capter 8.4 Setpoints ; PATH: Menu/Configure/Setpoint) will also be sown by a flasing symbol a and recorded troug te menu Messages (PATH: Info/Messages; see also capter 12.1 Messages ). According to te parameterisation of te transmitter te int Failure Press ENTER will be sown at line 4 of te display, if a warning or alarm as occurred (see also capter 8.7 Display ; PATH: Menu/Configure/Display/Measurement).

Transmitter M400 116 15 Accessories and Spare Parts Please contact your local Mettler-Toledo sales office or representative for details for additional accessories and spare parts. Description Order no. Pipe Mount Kit for 1/2DIN models 52 500 212 Panel Mount Kit for 1/2DIN models 52 500 213 Protective Hood for 1/2DIN models 52 500 214 Terminal blocks for M300, M400 52 500 504

Transmitter M400 117 16 Specifications 16.1 General specifications Conductivity / resistive Specifications Range 0.01 cm 1 constant sensor 0.002 to 200 µs / cm (5000 Ω x cm to 500 MΩ x cm) Range 0.1 cm 1 constant sensor 0.02 to 2000 µs / cm (500 Ω x cm to 50 MΩ x cm) Range 10 cm 1 constant sensor 10 to 40,000 µs / cm (25 Ω x cm to 100 KΩ x cm) Display range for 2-e sensor 0 to 40,000 ms/cm (25 Ω x cm to 100 MΩ x cm) Display range for 4-e sensor 0.01 to 650 ms / cm (1.54 Ω x cm to 0.1 MΩ x cm) NaCl: 0 26% @ 0 C to 0 28% @ +100 C NaOH: 0 12% @ 0 C to 0 16% @ +40 C to 0 6% @ +100 C HCl: 0 18% @ 20 C to 0 18% @ 0 C Cemical concentration curves to 0 5% @ +50 C HNO3: 0 30% @ 20 C to 0 30% @ 0 C to 0 8% @ +50 C H2SO4: 0 26% @ 12 C to 0 26% @ +5 C to 0 9% @ +100 C H3PO4: 0 35% @ +5 C to + 80 C TDS ranges NaCl, CaCO3 Sensor maximum distance analog: 61 m (200 ft); 15 m (50 ft wit 4-E sensors) ISM: 80 m (260 ft) Cond / Res accuracy** ± 0.5% of reading or 0.25 Ω, wicever is greater, Up to 10 MΩ-cm Cond / Res repeatability** ± 0.25% of reading or 0.25 om, wicever is greater Cond / Res resolution auto / 0.001 / 0.01 / 0.1 / 1 (can be selected) Temperature input* Pt1000 / Pt100 / NTC22K Temperature measuring range 40 to + 200.0 C ( 40 to 392 F) Temperature resolution auto / 0.001 / 0.01 / 0.1 / 1 K ( F), (can be selected) Temperature accuracy** ± 0.25 K (± 0.45 F) witin 30 to +150 C ± 0.50 K (± 0.90 F) outside Temperature repeatability** ± 0.13 K (± 0.23 F) * Not required on ISM sensors ** For analog input signal (ISM input signal causes no additional error).

Transmitter M400 118 Conductivity / inductive Specifications Conductivity range 0 to 2000 ms/cm Cemical concentration curves TDS ranges Sensor maximum distance Cond / Ind accuracy Cond / Ind repeatability Cond / Ind resolution Temperature input Temperature measuring range Temperature resolution Temperature accuracy Temperature repeatability ph incl. ISFET Specifications ph range Sensor maximum distance ph resolution ph accuracy** mv range mv resolution mv accuracy Temperature input* Temperature measuring range Temperature resolution Temperature accuracy** Temperature repeatability** NaCl: 0 26% @ 0 C to 0 28% @ +100 C NaOH-1: 0 13% @ 0 C to 0 24 @ +100 C NaOH-2: 15 50% @ 0 C to 35 50 @ +100 C HCl-1: 0 18% @ 20 C to +50 C HCl-2: 22 39% @ 20 C to +50 C HNO3-1: 0 30% @ 20 C to +50 C HNO3-1: 35 96% @ 20 C to +50 C H2SO4-1: 0 26% @ 12 C to 0 37% @ +100 C H2SO4-2: 28 88% @ 0 C to 39 88% @ +95 C H2SO4-3: 94 99% @ 12 C to 89 99% @ +95 C H3PO4: 0 35% @ +5 C to +80 C NaCl, CaCO3 10 m ±1% of reading ± 0.005 ms/cm ±1% of reading ± 0.005 ms/cm auto / 0.01 / 0.01 / 0.1 (can be selected) Pt1000 / Pt100 / NTC22K 40 to + 200.0 C ( 40 to 392 F) auto / 0.001 / 0.01 / 0.1 / 1 K ( F), (can be selected) ± 0.25 K (± 0.45 F) witin 30 to +150 C ± 0.50 K (± 0.90 F) outside ± 0.13 K (± 0.23 F) 1.00 to 15.00 ph Analogue: 10 to 20 m (33 to 65 ft) depending on sensor ISM: 80 m (260 ft) auto / 0.01 / 0.1 / 1 (can be selected) ± 0.02 ph 1500 to 1500 mv auto / 0.01 / 0.1 /1 mv ±1 mv Pt1000 / Pt100 / NTC22K 30 to 130 C ( 22 to 266 F) auto / 0.001 / 0.01 / 0.1 / 1 K ( F), (can be selected) ± 0.25 K ± 0.13 K (± 0.23 F) * Not requried on ISM sensors ** For analog input signal (ISM input signal causes no additional error).

Transmitter M400 119 Available Buffer Sets: MT-9 buffers, MT-10 buffers, NIST Tecnical Buffers, NIST Standard Buffers (DIN 19266:2000 01), JIS Standard, Hac buffers, CIBA (94) buffers, Merck Titrisols-Reidel Fixanals, WTW buffers Oxygen Specifications Measuring range current Sensor maximum distance Concentration range DO accuracy** 0 to 900 na Analogue: 20 m (65 ft) ISM: 80 m (260 ft) 0.1 ppb (µg/l) to 50.00ppm (mg/l) Saturation: 0.5% of reading or 0.5% (wicever is greater) Concentration: Oxygen ig: 0.5% of reading or 0.050ppm resp. 0.050mg/l (wicever is greater) Oxygen low: 0.5% of reading or 0.001ppm resp. 0.001mg/l (wicever is greater) 0.5% of reading or 5ppb O2 gas (wicever is greater) for ppm resp. ppb O2 gas O2 gas accuracy** 0.5% of reading or 0.01% (wicever is greater) for Vol% O2 gas Resolution auto / 0.001 / 0.01 / 0.1 / 1, (can be selected) Temperature input* Pt1000 / NTC22K Temperature measuring range 30 to 150 C ( 22 to 302 F) Temperature resolution auto / 0.001 / 0.01 / 0.1 / 1 K ( F), (can be selected) Temperature accuracy** ± 0.25 K witin 10 to + 80 C Temperature repeatability** ± 0.13 K (± 0.23 F) * Not requried on ISM sensors ** For analog input signal (ISM input signal causes no additional error).

Transmitter M400 120 Dissolved Carbon Dioxide Specifications 0 5000 mg/l 0 200%sat CO 2 measuring ranges 0 1500 mmhg 0... 2000 mbar 0... 2000 Pa Sensor maximum distance 15 m (49 ft) CO 2 accuracy ± 5% of reading ± 2 mg/l, resp. ± 0.2% of reading ± 2 Pa CO 2 resolution auto / 0.001 / 0.01 / 0.1 / 1, (can be selected) mv range 1500 to 1500 mv mv resolution auto / 0.01 / 0.1 /1 mv mv accuracy ±1 mv Total pressure range (TotPres) 0 4000 mbar Temperature input Pt1000 / NTC22K Temperature measuring range 30 to 150 C ( 22 to 302 F) Temperature resolution auto / 0.001 / 0.01 / 0.1 / 1 K ( F), (can be selected) Temperature accuracy 40 to + 200.0 C ( 40 to 392 F) Temperature repeatability auto / 0.001 / 0.01 / 0.1 / 1 K ( F), (can be selected) Temperature accuracy ± 0.25 K witin 10 to + 80 C Temperature repeatability ± 0.13 K (± 0.23 F) Available Buffer Set: MT-9 buffers wit solution ph = 7.00 and ph = 9.21 @ 25 C

Transmitter M400 121 16.2 Electrical specifications Power requirements Frequency Analog output signals Measurement Error troug analog outputs Analog output configuration Load Connection terminals Digital communication PID process controller Cycle time Connection terminals Digital Input Mains power fuse Relays Alarm Relay delay Keypad Display Max. cable lengt ISM 100 to 240 V AC or 20 to 30 V DC, 10 VA, AWG 14 < 2.5 mm 2 50 to 60 Hz Four 0 / 4 to 20 ma outputs, galvanically isolated from input and from eart / ground < ± 0.05 ma over 1 to 22 ma range, < ± 0.1 ma over 0 to 1 ma range Linear, Bi-Linear, Logaritmic, Autoranging max. 500 Ω Detacable screw terminals USB port, Type B connector Pulse lengt, pulse frequency or analog control Ca. 1 second Detacable screw terminals 2 wit swticing limits 0.00 VDC to 1.00 VDC for low level and 2.30 VDC to 30.00 VDC for ig level 1.0 A slow blow type FC 2-SPDT mecanical 250 VAC, 30 VDC,3 Amps 2-SPST mecanical rated at 250 VAC, 3 Amps 2-Reed 250 VAC or DC, 0.5 A 0 999 s 5 tactile feedback keys four-line 80 m NOTE: Tis is a 4-wire-product wit an active 4 20 ma analog output. Please do not supply to Pin1 Pin6 of TB2. 16.3 Mecanical specifications Dimensions (ousing H x W x D)* Front bezel H x W Max. D panel mounted Weigt Material Ingress rating 144 x 144 x 116 mm 150 x 150 mm 87 mm (excludes plug-in connectors) 0.95 kg (2 lb) ABS / polycarbonate IP 65 (wen back cover is attaced) * H = Heigt, W = Widt, D = Dept

Transmitter M400 122 16.4 Environmental specifications Storage temperature Ambient temperature operating range Relative umidity Emissions Hazardous areas Ratings / Approvals 40 to 70 C ( 40 to 158 F) 10 to 50 C (14 to 122 F) 0 to 95% non-condensing According to EN55011 Class A Type 1, Type 2, Type 3: cfmus Class I Division 2, ATEX Zone 2 Type 1 Cond Ind: cfmus Class I Division 2 (in preparation) ATEX Zone 2 (in preparation) CE Compliant 16.5 Ex Classification NOTE: Te Ex classification is valid for te transmitters M400 Type 1, M400 Type 2 and M400 Type 3. For te transmitter M400 Type 1 Cond Ind te approvals are in preparation. Type plate Rating Supply current circuit N( ) and L(+) Relay current circuits (connections, TB1) analogue outputs (connections, TB2) analogue sensor ph, O 2, LF (connections, TB3, terminal 1 8) digital sensor ph, O 2 (connections, TB4, terminal 3 4) 100 240 V AC, 50/60 Hz, 10 W 20 30 V DC, 10 W up to 250 V AC max. 20 W or up to 30 V DC max. 20 W U max. = 15 V, I max. = 255 ma, P max. = 2.5 W U max. = 5.3 V, I max. 5 ma, P max. 26.5 mw U max. 5.3 V, I max. 18 ma, P max. 24 mw