TOCSIN 750 SERIES OLIVER IGD. Triton House Crosby Street Stockport SK2 6TS England

Transcription

1 TOCSIN 750 SERIES HMI Based Detector Control Panel Operation and Maintenance V3.0 OLIVER IGD Triton House Crosby Street Stockport SK2 6TS England Tel: +44 (0) Fax: +44 (0) Website: REF T10-LPG-23R-V1.06 FS REF: 750M-2

2 Table of Contents Specification CE Declaration Overall Dimensions Interface Wiring Highway Hub Overview 6 Relay Card Overview 8 Relay Card Setup 9 2 Wire Addressable Cable systems 10 Operating System Overview 13 Alarm display Mode 14 System Menu's 15 Operational Set up Philosophy 16 Engineers Menu 17 Channel Setup Tab 18 Sensor FIND Function 19 Sensor Setup 20 Sensors Test Function 21 Sensor Diagnostics 22 Sensor Health Check 23 The Relay Output Tab 25 Relay Output Diagnostics 26 Relay Test Function 27 Alarm Relay Setup 29 Calibration Menu Tab 30 Zeroing Detectors 31 Calibrating Detectors 33 Recommended Setup Sequence 34

3 This product must be earthed in accordance with local safety regulations. The Control Panel leaves the factory configured for the supply voltage stated on the customers order. Standard options are indicated below. Should the control panel be used in conjunction with portable generating equipment, care should be taken to ensure that the electrical supply is within the tolerance band described above. The control panel may be stored at temperatures between 00C and 550C. If stored at low temperatures and then brought into a warmer environment, condensation may form on some components. In such a situation, this condensation should be allowed to evaporate prior to use of the equipment. If stored at high temperature, care should be taken to ensure that humidity condensation does not enter critical electrical components, for example the power supply. The Control Panel is designed to operate within specification for ambient temperature between 0oC and 55oC, relative humidity up to 95% ( non-condensing ). warning! Do not use a Control Panel for protection applications that has not been calibrated. If calibration seals are missing from the control panel or have been tampered with or broken, then the control panel must be re-calibrated and sealed by a trained engineer.. Basic Specification Power DC Powered Models 19 to 29V DC AC Powered Models 85 to 264v AC 50/60Hz by selection Ambient Operating Temperature 0 to 55 Degrees Centigrade Ambient Operating Humidity 0-95% RH Non-Condensing Protection IP54 Display 7" Full Colour Touch Screen 800 x 480 Displayed Detector Resolution (Range Dependant) 1% LEL 1%Vol 0.1% Vol 1 ppm 0.1ppm Connected Hubs Up to 5 Hubs each with 8 off 2-Wire Highway Ports Max 16 Highways Connected devices Up to 128 Devices on single hub CE Declaration BS EN BS EN EN : /336/EEC Electromagnetic Compatibility Directive, amended by 93/68/EEC 72/23/EEC Low Voltage Equipment Directive, amended by 93/68/EEC 1

4 EC Declaration of Conformity Issuers name and address: Declares that the product listed as: Oliver IGD Limited of Triton House Crosby St, Stockport, United Kingdom TOCSIN 750 Addressable Gas Detection Control Panel Are in conformity with the provisions of the following European Directive(s) when installed, operated, serviced and maintained in accordance with the installation and operating instructions contained in the product documentation. 2004/108/EC EMC Directive 2006/95/EC Low Voltage Equipment Directive (note not applicable to 24V DC Powered Versions) And that the standards and/or technical specifications referenced below have been applied or considered. EN :2000 Electrical apparatus for the detection and measurement of flammable gases, general requirements and test methods. EN 50271:2001 Electrical apparatus for the detection and measurement of combustible gases, toxic gases or Oxygen: requirements and tests for apparatus using software and or digital technologies. Excluding requirements for SIL EN : 2005 EN /A1: 2011 EN : 2014 EN : 2013 EMC Generic standards. Immunity for industrial environments EMC Generic standards. Emission standard for industrial environments EMC Limits. Limits for harmonic current emissions (equipment input current 16 A per phase) EMC Limits. Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current 16 A per phase Technical File Reference T750-TF9 Notified Body For ATEX and/or QAN: Sira Test & Certification Ltd Hazardous Area Centre, Rake Lane Eccleston, Chester, CH4 9JN. United Kingdom Oliver IGD Limited operate an independently assessed ISO9001:2008 Quality Assurance System and ATEX QAN. Quality Assurance Certificate Number Testing Agency: TUV - SUD Octagon House Concorde Way PO 15 5RL Fareham Quality Assurance Notification Number SIRA 02ATEX M174 TUV Certificates and reports can be checked on-line at Select Oliver IGD when prompted on the website to view certificates Issued by: Oliver IGD Limited, Stockport, SK2 6TS, United Kingdom Signature: Declaration of Conformity in accordance with EN ISO/IEC :2004 Name Andrew J Collier M.I.O.D Position: Managing Director Date: 1.June Declaration Ref: T750-DEC-2

5 Tocsin 750 Physical 360mm 10 off 20mm Cable Entries 56.5mm 30mm 20mm 48.5mm Top Face FRONT VIEW 120.5mm 382mm 72mm Front Face 134mm 292mm Side Face Note 150W and 24V DC Versions Can be Flush mounted into walls up to the front face flange 300W Versions have active ventilation and must be surface mounted allowing 100mm clearance all round Note that the rear case can be rotated to allow 20mm entries to face either up or down Installation Cables Supported Installation Cables 2 Core 1.5mmSQ or 2.5mmSQ See IGD Cable System Calculator Typically SWA, MICC, FP200, SY, CY, H03VVH2-F Mains Cable Unscreened or Similar 3

6 Important Notes Gas detection systems must be correctly specified, installed and maintained in order to be effective. Anyone undertaking elements of this work should have access to the necessary equipment and be able to demonstrate competence. This will usually mean having passed a training competency course. International Gas Detectors run training courses for safety survey, specification, installation and service aspects of hazardous gas detection systems. In addition IGD can supply test equipment and calibration gases necessary to undertake this work. Please the following points 1. A zero grade gas usually instrument air or Nitrogen and a suitable calibration gas mixture is required. 2. The correct gas adaptors must be used to apply gases to detectors when zeroing and calibrating. Incorrect application of gases can affect calibration results 3. Use equipment and gases traceable to a national standard. Any calibration will only be as good as the equipment and materials used. 4. IGD supply fixed flow regulators for use with IGD calibration gas bottles which supplies gas at 0.5L/Min Panel Options Part Number Description TOC V DC Control Panel No Internal PSU Standard Features inluding HMI Display 4 Relays, 4 Highways TOC B 110/230V AC Control Panel 150W PSU Standard Features inluding HMI Display 4 Relays, 4 Highways 4AH Internal Battery Backup TOC /230V AC Control Panel 150W PSU Standard Features inluding HMI Display 4 Relays, 4 Highways TOC B 110/230V AC Control Panel 300W PSU Standard Features inluding HMI Display 4 Relays, 4 Highways 4AH Internal Battery Backup TOC TOCSIN 750 Series Controller TOCSIN 750 Series Annunciator Options With: Display, Relay Output, Digital or Analogue Input, Flammable Gas Detector TOCSIN 750 Series Detectors Flammable Gases, Toxic Gases Oxygen 110/230V AC Control Panel 300W PSU Standard Features inluding HMI Display 4 Relays, 4 Highways TOCSIN 102 Series Detectors 2-WIRE Flammable Gases, Toxic Gases Oxygen For ATEX Applications 4

7 Installation Guide Your 750 Series control panel has been supplied with a separate installation guide. Please read this before installing your system. The Installation guide provides information for correct cable selection, how to correctly install cables and devices and ensure correct cable segregation. It is important to read and understand this document prior to installation. Copies of the installation guide are available in the downloads section of our website. Always check you are using the latest versions of the supplied manuals by checking on the IGD website. Failure to follow correct installation may result in poor performance and/or damage to system components. International Gas Detectors 2-Wire Addressable 2-WIRE SYSTEMS 2-Wire Gas Detection System Installers Guide V2.0 OLIVER IGD Triton House Crosby Street Stockport SK2 6SH England Tel: +44 (0) Fax: +44 (0) sales@internationalgasdetectors.co.uk Website: 5 Version 2.0 T750-INST

8 T750 Control Panel & 2 Wire Hub PCB Features Ethernet Rs485 Remote (Modbus etc) Display Colour HMI Battery Connection For Battery Backup Display TOC-650 (2x8 LCD) Fault Relay Alarm Relay 1 Alarm Relay 2 Inputs for E-stops/Fire L1 L2 L1 L2 L1 L2 Power in 24V DC L1 L2 Alarm Relay 3 Direct Beacon-Sounder O/P L1 L2 4 off 2 Wire Ports Each supporting 32 Devices 128 Devices in Total Hub cards can be cascaded to add more ports if required. Note This is Polarity Sensitive And Must be Connected L1 to L1 and L2 to L2. Two display options, either 650 style with jog wheel or HMI Style touch screen display Note both displays can be fitted at the same time which can allow the HMI display to be remote from the panel and used as a system repeater or mimic 6

9 7 Can only use cable I/O port 1 and 2 Max sensor cables is four with one hub card Max sensor cables is eight with three hub cards Max sensor cables is twenty with nine hub cards Only controller on level 0 has any control setup (cause and effect) Max total input channels to level 0 controller is limited to 300 Max cable distance level 0 to level 2 is 3KM Level 0 Level 0 Level 1 Level 2 T750 Control Panel Cascaded Hub Topography

10 Tocsin 920 Addressable Relay Card In all Cases: Relay contact ratings. 250V AC Non-Inductive 30V DC Non-Inductive Power out for 0V DC use in conjunction 24V DC with relays Spike suppression must be fitted Note that FAULT relays are normally energised on power up. 24V DC Relay status LED, ON when Energised A2 A1 Example fit protection diodes when switching external DC loads. 10 off Digital Input Ports 0V DC ~ ~ A1 Example fit protection supressors when switching external AC loads typical device Farnell Ref Wire Highway Connections Pin 1 Pin 2 Line 1 Line 2 Pin 1 Pin 2 Line 1 Line 2 A2 Normally Closed Common Normally Open Relay Terminals Base Address set up LED's and interface for the relay card 8 First Relay on The Card (relays number from this one).

11 Tocsin 750 Addressable Relay Card Setting Relay Addresses Each Addressable relay card must have its own unique base address. This can be set on the card and is indicated below. The relays are then addresses/numbered from that base address. The example below shows a card with a default base address of 101 A DOWN BUTTON UP BUTTON A0 Press and hold the DOWN button until all LED's are OFF. Release the button and the address currently set will be illuminated on the bottom five LED s. Use the UP and DOWN buttons to alter the address set as indicated in the table below To exit press and hold UP or DOWN button until all LED s are off then release NOTE: WHEN SETTING ADDRESSES YOU CANNOT HAVE TWO DEVICE ADDRESSES SET THE SAME ON THE SAME ADDRESSABLE HIGHWAY or DEVICE. 9

12 Tocsin 750 Addressable Cable Systems. Annunciators have detector interfaces included LPG 0-100%LEL GAS DETECTOR SN: ADD:4110 Use Annunciators For Door Entry Control. Use Annunciators with Gas Detector Interfaces to Detect & Alarm in Specific Areas Controller in Supervisors Office Mix Annunciators With Other Addressable Devices Such as TOC-750 Series Detectors. Use ATEX Rated detectors where required Accessories Can Use Security Style Cable Typically Belden 4502 FE 4-Core Laboratory LPG 0-100%LEL GAS DETECTOR SN: ADD:4110 Gas Bottle Store 2 Core Highway as: 24V A,B Typically 1.5mmSQ Screened Cable Typically FP200 Use the Detector or Annunciator I/O Capability to Control Gas Supply Valves, Beacon-Sounders or other devices ATEX Zoned Area Note cables run with modules sequentially wired. Power can be taken from system modules for small current devices such as LED beacon sounders and is limited to 100mA per module Observe interface requirements for relays, fitting freewheel diodes and snubbers as indicated End of line terminators, supplied with panels must be fitted for correct operation 10

13 Operating System On powering of the system, there is an initial count down to allow detectors time to stabilise. This period can be configured in the engineers menu options to suit particular applications. During this warm up period all alarms are inactive. After the countdown period the system goes into normal monitoring operation. Gas Detector Type Digital and Analogue Readings Sensor TAG, alarm levels and status displayed Select to Disable the Current channel (Pass Key Protected) Alarm 3 Level Alarm 2 Level Alarm 1 Level In General: Green = Normal Red = Alarm Yellow = Fault Black = Disabled Click on a displayed channel number to make it the currently viewed channel or type in the channel number of interest. Note that the display centres on the selected channel and displays its current status 11

14 System Display When in Alarm If beacons and sounders are connected using 107 series relay nodes then the sounders can be muted. Note there are selections to mute all connected 107 series sounders or just the 107 series sounder that corresponds to this channel. Note that if alarms are set as latching there are also options to try and reset just this channel or all channels that are in alarm. To reset a latching alarm you must be below the alarm level. The number of active alarms is displayed. Use the left and right keys to select between channels in alarm. when the system goes into alarm the display immediately selects the first channel that went into alarm to be the current channel Bar Graph Alarm Level Indicators Gas levels must exceed an alarm level for the alarm to become active. A delay before alarm can be set in the engineer menu and is common in ventilation applications to introduce additional hysteresis into a system. Rising Latching Alarm Level Note Latching Alarms Stay Active After The Gas Level Has Gone and Must be Physically Reset Rising Alarm Level Rising Alarms Automatically Reset Themselves After The Gas Level Has Gone Falling Alarm Level (Typically for Oxygen Depletion Alerts) Falling Alarms Automatically Reset Themselves After The Gas Level Has Gone Falling Latching Alarm Level Note Latching Alarms Stay Active After The Gas Level Has Gone and Must be Physically Reset 12

15 System Menu Access and Options The Tocsin 920 operating system has two access levels for set up and maintenance functions. The basic menu layout is indicated on the diagram below. USER MENU (CODE 100) Menu options as: Note that the User Menu items are repeated on the Engineer Menu. For the balance of this manual only the engineer menu functions are discussed. ZERO SENSOR CALIBRATE SENSOR ALARM LEVELS ALARM COPY ALARM RELAYS CLEAR SCREEN ABOUT ENGINEER MENU (CODE 50) Menu options as: CODE 25 MENU System Inhibit ZERO SENSOR CALIBRATE SENSOR ALARM LEVELS ALARM COPY ALARM RELAYS SENSOR CHANNELS SENSOR FIND SENSOR SETUP SENSOR TEST RELAY CHANNELS RELAY FIND RELAY TEST SYSTEM SETTINGS SENSOR DIAGNOSTICS RESET DIAGNOSTICS SENSOR CHECK PROGRAM EXIT EXIT 13 CODE 345 MENU (when engineer menu button selected) Menu Options as: Annuciator Module PCB Setup

16 Operational Set up Philosophy The Tocsin 750 controller forms the operational core of an addressable gas detection system. ALL elements of the system such as detectors, highway hubs, relay outputs etc have addresses on the system. During set up and commissioning the inputs and outputs to and from the Tocsin 750 are defined with their addresses. The diagram below shows a typically hierarchy. Channel Number on Tocsin 750 Controller 25 In this example for this particular channel (25) on the Tocsin 750 controller the gas detection readings are coming from detector 15. This is setup in the SENSOR SETUP menu. Associated Detector Address 15 Alarm Level 1 15 Alarm Level 2 The required alarm levels are set up in the ALARM SETUP menu. Three alarm levels are possible for each channel as AL1,AL2 and AL3. The type of alarm is also setup in this menu as one of either: RISING ALARM Alarm on rising gas level once set point is exceeded. Alarm resets after gas level is below the alarm point. 25 Alarm Level 3 RISING LATCHING ALARM 50 Alarm on rising gas level once set point is exceeded. Alarm must be manually reset after gas level is below the alarm point. FALLING ALARM Relay Address Alarm on falling gas level once level is below set point. Alarm resets after gas level is above the alarm point. 103 Relay Type FALLING LATCHING ALARM Alarm on falling gas level once level is below set point. Alarm must be manuallyreset after gas level is above the alarm point. RISING Sensor 25 These options are configured in the RELAY SETUP menu which allows relay alarm outputs to be assigned to particular channels or groups of channels For complete details on alarm options see the Alarm Setup Menu section later in this manual. 14

17 The Engineer Menu (Passcode 50) Select Engineer Mode and enter pass code 50 The following menu is then displayed Select the tab at the top of the folder to access each section. Note that the sensor tab is displayed with its page options by default. Select the EXIT tab to return to normal operation. TAB GROUPS FUNCTIONS SENSOR Sensor Channels (Change the number of active channels) Sensor FIND (use to find addressable sensors) Sensor Setup (setup channel parameters) Sensor Test (Communication test function) Sensor Diagnostics (Full diagnostics for the chosen detector) Sensor Check (Sensor diagnostic Health Check) RELAYS Relay Channels (Change the number of system relays) Relay FIND (use to Find addressable relays) Relay Diagnostics (Communication test function) Relay Test (Physical relay test) ALARMS Alarm Levels (set alarm levels for each detector) Alarm Copy (copy alarm set up between channels) Alarm Relays (Set up parameters for alarm activation) CALS Zero Sensor (Use to zero an individual sensor) Zero All Sensors (Zero all connected sensors) Calibrate Sensor (Calibrate an individual sensors) One Man Calibration (one man walk round calibration) GSM GSM Setup (Use to set up GSM functions) GSM Test (Test GSM operation) SYSTEM Main global system settings EXIT Exit to normal gas detection operation 15

18 The Sensor Setup Tab Select the sensor channels option to set the number of active channels The Sensor FIND Function The sensor FIND function is used during initial set up of the system to test that all connected detectors communicate to the control panel. The function can also be used to automatically install onto the panel all of the detectors which are 'found'. By doing this channels are automatically set up on the controller for the Address, Cable, Range, Gas Type etc. This will speed channel set up but it should be noted that performing a FIND and auto install will erase all the existing set up information including alarm levels and alarm action types. Select the start and end adress to search between. Select the cable numbers to search Select FIND to start searching for detectors. The display will show how many detectors were found, on which cable highways At this stage this may just be useful diagnostic information in which case select EXIT to exit the sensor FIND or... Select NEXT to continue and automatically install sensors onto the system 16

19 The Sensor Setup Menu Tap here to enter the on screen tag for the detector (max 32 characters) For this channel enter the address which is to relate to this channel. Select gas FLAMM, CO, CO2 etc Enter the UNITS to display. % LEL, ppm,%vol etc Enter the hub cable number that this detector is installed onto. Note the first hub is cable numbers 1 to 4. Select to temporarily enable or disable a channel Select to move between channels. Tap on the channel number to type in the channel number if known. Note that when a set up button is selected a popup menu appears to allow data to be typed into the set up box. Notes 17

20 The Sensor Test Function The sensor comms test function is a diagnostic check which provides information regarding the ability of the Tocsin 750 controller to communicate to all its connected detectors. When sensor test is selected the following diagnostic screen is displayed. The display shows eight sensor channels at a time. Use the left and right keys to display more channels. The return key ends the diagnostic. Errors detected as an overall percentage of Tx transmissions Sensor Channel Number Detector Concentration Number of time outs. i.e detector did not respond quickly enough to request for data from Tocsin 920. Number of Data Receives Number of Data Transmits Note that the overall percentage error rate should be less than 0.5%. Anything greater than this is indicative of a problem requiring correction. Usual errors arise from poor cable termination or poor cable screening and should be corrected prior to final commissioning. 18

21 Sensor Diagnostic Functions...Diagnostics The sensor diagnostics function provides a snapshot of an individual sensor channel for evaluation should there be a problem. The screen shot below is indicative of the information typically available. The Live Data Panel Conc Live gas concentration from the detector Volts Gas reading as a voltage from the detector Pink Only for pellistors, the active volts signal Temp Detector Temperature Press Ambient Air Pressure Zero Drift Allowable Zero Drift Compensation Volts Fault Any reported errors Zero T.Comp Zero Temp Compensation Factor Cal T.Comp Cal Temp Compensation Factor Cal P.Comp Pressure Compensation Factor Zero Detector Routine (see Zero section) Calibrate Detector Routine (see Calibrate section) Detector zero and calibration sensitivity functions and calibration gas settings. These should only be accessed by trained and competent personnel. Channel Navigation EXIT to main menu Settings Data Panel (information only) Type Range Gas Address Cable Software Serial No Prod Date Detector Type Detector Range Detector Target Gas Detector Address Cable on which detector is installed (highway) Detector Software Version Detector Serial Number Detector Production date Calibration Data Panel (information only) Zero Volts Zero Date Cal Volts Cal Date Recorded Zero Voltage from last successful zero normally 1.0V +/-0.1V Date of last successful zero Recorded Cal Voltage from last successful calibration. Note this is proportional to the gas value and range of detector. For example zero = 1V Half Scale = 1.75V Full Scale = 3.5V (approx values) Date of last successful calibration 19

22 The Relays Tab The Relay FIND Function This function is similar to the sensor FIND function and is used to detect addressable relays installed onto the data highways. The opening screen allows you to limit which highways (cable numbers) you wish to search over and limit the range of addresses. Selecting FIND initiates the search for the selections you have made. Select the start and end adress to search between. Select the cable numbers to search Select FIND to start searching for detectors. Indication of total number of relays found Cable zero is internal to the hub card. 7 relays should always be reported found as: Current address being searched Relays 1 to 4 on the hub card Visual SSR Output Audible SSR Output Hub Card Sounder Output When the search is complete the NEXT button appears Addressable relays that have been detected are indicated against their highway (cable) number. Total number of relays found Where the relays have been found (numbers vs highways/cables) Select next to install the relays or abort to exit and make no changes 20

23 Required Setup Sequence It is necessary to follow the correct sequence for the controller to function correctly: 1. If more then one hub card is present perform a HUB FIND. If there is only one hub this stage can be ignored. 2. Perform a SENSOR FIND. This will setup the correct sensor channel configuration and correct number of channels. Note that the channel sequence can be adjusted afterwards to group sensors if required. 3. Perform a RELAY FIND, this will set up the correct number of system relays. Note that the relay sequence cannot be moved around in the same manner that the sensors can and MUST be programmed in the sequence they are found. If relays are moved around after a FIND then the alarm relay setup will still work but relay diagnostics will not perform correctly. The reason for this is that the diagnostic routines will expect relay addresses to be grouped, correlating to their devices. For example an 8 way relay card may number 110 to 118 but an annunciator may only be using one relay address. Mixing the single relay address into the sequence of an 8 way relay card will stop the diagnostic routine displaying and operating correctly. The Relay Diagnostics Function Current relay address and highway (cable) on which it is located Select the relay number you wish to diagnose. Note that relay numbers (1 to x) are set up against addresses (eg 101) in the order they are found or in the relay channels menu. For the selected relay the diagnostic report indicates: The relay type: Fault or Alarm Output TX: RX: Errors: Fault: Number of data requests Number of data replies Errors TX:RX Expressed as a percentage Any reported issue 21

24 Relay Test Function The Tocsin750 has the option to run a relay test function. Select the option and the following screen is displayed. Note the outputs on the hub card are always indicated first Select the relay to test to see it change its state Use EXIT to return to the main menu and release all selected relays back to normal operation. Cable Highway Use the NEXT and PREV buttons to select the desired relay board. There are also screen displays for individual module outputs. Aelay Address 22

25 The Alarms Tab The Alarm Levels menu The Tocsin 750 allows 3 alarm levels to be set per sensor channel. This is set up in the alarm levels menu selection and is indicated in the screen shot shown below. Set the alarm levels for AL1, AL2, AL3 Set alarm levels to default values Set the alarm action for AL1, AL2, AL3 Options are: Rising Rising Latching Falling Falling Latching select the enter key to update your changes to the ESC returns the system to the menu selection system. screen without making any changes. Use the arrow keys to navigate between channels or type in the channel to be edited Notes 23

26 The Alarm Relay Setup Menu The alarm relay setup on the Tocsin 750 controller is based on the relay rather than the detector/channel. For each relay output connected on the system the following set up page must be configured to allow the system to determine when a relay is triggered. Set the Relay Address Set the Cable Number onto which the Relay is Installed Set if the Relay is to be Energised or De-Energised on Alarm Activation Set if the Relay can be Muted or not From the Control Panel Set the alarm relay TYPE as: DISABLED AL1 AL2 AL3 AL1,AL2 and AL3 FAULT Use the return key to save changes and the ESC key to exit without making any changes. Navigate either by typing the relay number or using the left and right keys. In addition to the FROM - TO sensor groups, individual channels can also be added into the relay activation definition. Up to 14 individual sensor channels can be added to the definition. Note in all cases that for these sensors channels the relay will be active only for whichever alarm level, AL1,2 or 3 is defined in the relay TYPE. 24 Use the FROM - TO boxes to select groups of sensors, for example From sensor channel 1 To sensor channel 6 to activate this relay on alarm. Up to 7 sensor groups can be defined in this way. Note in all cases that for these groups of sensors the relay will be active only for whichever alarm level, AL1,2 or 3 is defined in the relay TYPE.

27 The Calibration Menu 1. Sensor Zero Select this option to Zero a particular sensor. The expected sequence will be: Select ZERO SENSOR function Select the channel to ZERO Flow zero gas at the sensor and allow to stabilise Select to ZERO Observe the result See enclosed Zero-Cal Data 2. Zero All Selecting this function will automatically perform a zero on all connected detectors. Typically this is only used during commissioning when it is known that there is no target gas present. This function should NOT be used in general calibration as there is the danger when an installation is up and running that you could be zeroing off a valid gas reading. 3. Calibrate Sensor Select this option to Calibrate a particular sensor. The expected sequence will be: Select CALIBRATE SENSOR function Select the channel to CALIBRATE Flow calibration gas at the sensor and allow to stabilise Select to CALIBRATE Observe the result See enclosed Zero-Cal Data 4. One Man Calibration This function allows one person to calibrate a sequence of detectors by selecting the function then applying gas to each detector in turn for 3 minutes. The Tocsin 920 monitors the signal from the detectors and performs the calibration automatically once it sees a valid steady reading. This is similar in operation to the walk test function on a smoke detection panel. For full details see later section. 25

28 The Sensor ZERO Function Zero and calibration functions should only be undertaken by trained competent personnel. The effectiveness of a gas detection system is largely down to how well it is maintained and this means how well it is calibrated. Apply zero gas to the detector. It is important that the detector zero point is correctly set. It must be considered that there is the possibility that the gas to be detected is already present in the area of the detector. For this reason never zero on just the ambient surroundings. There are two possibilities A. confirm there is no gas present by using a portable detector B. Use a suitable ZERO gas as follows. GAS RECOMMENDED ZERO GAS O2/CO2 NITROGEN PELLISTOR INSTRUMENT AIR TOXIC GASES NITROGEN P Y Regulator to deliver a fixed flowrate (0.5-1 L/min) W CHASS 24V DC B Oliver IGD P/N A 360 CAL GND ZERO + - FAULT The following diagram shows a typical equipment set up. ma 0V CONC 360 ma+ ma- Cal Gas Adaptor Ensure it is correctly fitted ZERO GAS Hose delivers cal gas to the detector. Note a test gas applicator is usually required. In some cases weather protection guards or the detector itself may include a gas applicator port. IMPORTANT: Flow gas for a minimum of 60 Seconds. Some detectors with longer response times may take longer to stabilise. Recommended Test 750 series Gas Applicators. Tocsin 102 Series Detector P/N A MK3 Gas Detector P/N A MK5 & MK6 Gas Detector P/N E TOC-750 Series 26

29 The Sensor ZERO Function...continued Select the Zero function from the Engineers menu and the following screen is displayed. Flow zero gas and observe the reading. Once stable select the ZERO button to send the zero command to the detector head. Observe the ZERO reading to ensure it has returned the detector to zero reading. Select to move between channels. Tap on the channel number to type in the channel number if known. Notes 27

30 The Sensor CALIBRATE Function...continued Calibration is a similar process to the ZERO command and also requires a suitable calibration gas. FAULT Note that with calibration there is more to consider than with Zeroing. The type and age of the detector can have an influence so it is recommended that periodically as well as calibrating the detectors that there response is checked in the diagnostic menu. In this manner over a period of years detector deterioration can be checked for preventative replacement. For full details refer to the IGD 750 Series detector manual. P Y Regulator to deliver a fixed flowrate (0.5-1 L/min) W CHASS 24V DC B A 360 CAL ZERO GND ma 0V CONC 360 ma+ ma- Cal Gas Adaptor Ensure it is correctly fitted CAL GAS 50% LEL Hose delivers cal gas to the detector. Note a test gas applicator is usually required. In some cases weather protection guards or the detector itself may include a gas applicator port. Calibration gas. Note the concentration marked on the label. Ensure it is of the correct type for the detector being calibrated. The concentration should typically be 50 to 90% of the detector range. Flow calibration gas and observe the reading. Once stable select the CAL button. The option now appears to enter the calibration gas value. This will normally be written on the calibration gas bottle label. The calibration command is then sent to the detector head. Observe the calibrated reading in the following screen to ensure a successful calibration (typically +/-2% of Range) Select to move between channels. Tap on the channel number to type in the channel number if known. 28

31 750 Module Setup Functions The Tocsin 750 system uses a common module PCB to connect and interface detector and other input/outputs. The 750 control panel has built in routines to access and setup the module PCB. The following Diagram shows some of the connection possibilities. TOC-750 Annunciator TOC-750 ATEX Hazardous Area Gas Detector 2 Core Cable Highway For Power and Communication Between Module PCB s and Control Panel TOC-750 Series Safe Area Gas Detector TOC-750 Annunciator With MK7 Gas Detector The following diagram indicates features available on the TOC-750 module PCB. Please note that failure to observe and make correct connections or exceed ratings may result in damage to the PCB. 6 5 Ribbon Cable Connection For TOC-750 Annunciator Display and Options Connection Point For IGD Infra-Red, Toxic, PID or Oxygen Gas Detectors Multi-Function I/O Port 2 Solid State Output or 4-20mA Input or TOC-10 IP or Gas Meter 2-Wire Highway Connection To Next Device P Y W Multi-Function I/O Port 1 Solid State Output or 4-20mA Input or TOC-10 IP or Gas Meter 2-Wire Highway Connection To Next Device DVM Test Point - DVM Test Point + SPCO Relay Output 4 Pellistor (Catalytic) Flammable Gas Detector Interface Suitable for IGD Types MK3, MK6, MK7 2 Local LED Indications And Up/Down Interface Buttons 29

32 Connection Possabilities The 750 Series Module PCB Operates as an Interface Hub on the Addressable 2-Wire Highway. The Diagram Below Shows a Typical Set of Connection Possabilities 8/9/ /7 5 3/6 Device Address Table I/O Port 2 Either Input or Output Option Type Input Input Input Input Output Output Output Input Input Output Device Gas DetectorPellistor Toxic Gas Detector TOC mA Relay & OP1 Solid State Output Solid State Output E-Stop Key Switch Display Sounder Device Address I/O Port 1 Either Input or Output Note that one 2-Wire addressable highway running Sentinel+ protocol can support up to 32 modules. Each module can have up to 8 connected devices. IGD Configuration software is used to configure the module PCB to switch devices on and off and set addresses (see Tocsin 650/750 Manual). If the connected devices have already been configured then the base address can be set from which all other module addresses will sequentially follow. This is described later in this manual. Device addresses indicated in the table are typical but can be individually set. 30

33 Accessing TOC-750 Module PCB Setup Functions From the 750 Controller From the main screen select either the user or engineer menu and enter 345 as a password. 345 The Production Menu is now displayed. Select the T750 ANN Setup option The software now displays the setup options for the annunciator module as well as separate page and options for: Pellistor Gas Detector Input T102 input for Toxic/Infra-red/Oxygen or PID gas detectors Setup for IO Port 1 Setup for IO Port 2 Relay setup E-Stop Keyswitch It is advised when configuring systems to install and power the control panel first and then use one port on the 750 to connect and check devices prior to installing them. In this manner all addresses and module set up options can be checked before devices are installed into their final locations. 31

34 TOC-750 Module PCB Setup Functions From the 750 Controller. General With 345 entered as a password the software will prompt for the BASE address of the device to be checked and which cable port it is connected to. The software then displays the following setup page. Note that the opening screen will show the setup options for the pellistor input as this is always the first physical channel. The setup options listed below the pellistor settings button may not be displayed if the pellistor option is listed as disabled on the basic setup display on the right. The display of the module PCB shows six option buttons. Pressing the button will allow you to cycle through each of the available setup options for that feature. depending what is selected will determine what is then displayed for each option on the left. Pellistor Settings and module options The picture below shows the opening screen for the module PCB setup. The module PCB shown graphically on the right indicates the six functions available and their current setup status. This can be altered at any time by cycling the relevant button. Each of the six functions then has setup options. These are indicated sequentially on the right as each function button is selected. The screen below shows the availabe pellistor settings. Setup Options Function Selection Buttons Pellistor Setup Options Are Only Displayed if the Module Selection is MK3, MK6, MK7. If the Option is Selected to Indicate Disabled Then These Options Are Note Displayed Options available for the Pellistor Input allow: Change of Unit Address, Change of Range (Normally 0-100% LEL), Change of Gas Type (Typically CH4, LPG etc), Change of Units (Typically %LEL), Add a Tag Line to the Pellistor, to describe location etc 32

35 T102 Settings and module options T102 Settings Enable as: Toxic (EC) Infra Red (IR) VOC (PID) T102 Setup Options Are Only Displayed if the Module Selection is Active. If the Option is Selected to Indicate Disabled Then These Options Are Not Displayed Options available for the T102 Input allow: Change of Unit Address, Change of Range, Change of Gas Type (Typically CO, CO2, NO2 etc), Change of Units, Add a Tag Line to the Sensor, to describe location etc I/O 1 and 2 Settings and module options IO1 Settings I/O1 & 2 Enable as: Disabled Gas Meter Out SSR 24V DC In 4-20mA External Power In 4-20mA Loop Powered In Volts In Digital I/O Port Setup Options Are Only Displayed if the Module Selection is Active. If the Option is Selected to Indicate Disabled Then These Options Are Not Displayed Options available for the IO Inputs allow: Change of Unit Address, Change of Range, Change of Gas Type (Typically CO, CO2, NO2 etc), Change of Units, Add a Tag Line to the Sensor, to describe location etc 33

36 T102 Settings and module options Relay Set as: Enabled or Disabled Relay Setup Options Are Only Displayed if the Module Selection is Active. If the Option is Selected to Indicate Disabled Then These Options Are Not Displayed Options available for the Relay Output allow: Change of Unit Address, Add a Tag Line to the Sensor, to describe location etc Display Settings and module options IO1 Settings Display Settings as: Disabled Display Only Display and E-Stop Display and Key Switch Display E-Stop & Key Switch 34