Operation Manual MICRO III (G202 / G202s / G212) Single Gas Detector GfG GESELLSCHAFT FÜR GERÄTEBAU MBH KLÖNNESTRASSE 99 D-44143 DORTMUND TELEPHONE +49 / (0) 2 31 / 5 64 00 0 FAX +49 / (0) 2 31 / 51 63 13 INFO@GFG-MBH.COM WWW.GASDETECTION.BIZ AMTSGERICHT DORTMUND HR B 2742 CERTIFIED AS PER DIN EN ISO 9001:2000 ATEX QM CERTIFICATE
Content Page Introduction 3 For your Safety 3 Application and Use 3 General Description 3 Detection Principle 3 Design 4 Operational Notes 4 Detection Mode 4 Turning On 4 Turning Off 4 Alarm 5 Alarm Signals 5 Special Notes for Oxygen Monitoring 5 Battery 5 Service Mode 6 Reed Contact 6 Battery Check 6 Confidence Beep 7 Sensor Adjustment in Fresh Air 8 Sensor Adjustment with Test Gas 9 Sensor Replacement 10 Adjustment by means of Configuration Program 10 Annex 10 Cleaning 10 Service and Repair 10 Maintenance and Inspection 10 Accessories 11 Spare parts 11 Sensor specification 12 Alarm thresholds-standard settings and test gas chart 15 Technical Data 17 EC-Type Examination Certificate 18-2-
Introduction For your Safety According to 3 of the law about technical working media, this manual points out the proper use of the product and serves to prevent dangers. As any piece of complex equipment, the GfG MICRO III will do the job designed to do, only, if it is used and serviced in accordance with the manufacturer's instructions. All individuals who have or will have the responsibility for using and servicing this product must carefully read this manual. Adjustments in the service mode must be done by experts only. Before operating the detector, use the operational beep to check the battery status, the alarm signal activation and the readiness for operation. The warranties made by GfG with respect to the product are voided, if the adjustment of functions or parameters is changed without GfG s permission and if the product is not used and serviced in accordance with the instructions in this manual. The above does not alter statements regarding GfG's warranties and conditions of sale and delivery. Application and Use The MICRO III is meant for personal safety under atmospheric conditions. It is a pocketsize detector for your personal protection from gas hazards. The detector is operating continuously in diffusion mode and gives a visual and audible alarm, if dangerous gas concentrations build up. The Micro III is approved for the use in explosion endangered areas and is subject to an EC-Type Examination Certificate issued by DEKRA EXAM GmbH, according to regulation 2014/34/EU: Certificate: DMT 99 ATEX E 044 Labelling: II 2G Ex ib IIC T4 resp. T3 Gb -20 CT a +45 C resp.+55 C. General Description The MICRO III is a very small and handy single gas monitor for measuring toxic gases or oxygen deficiency resp. surplus. There are 6 models of the MICRO III available: MICRO III Model Display Keypad Memory Gases and lines G202 yes no no O 2 CO H 2 S H 2 NO NH 3 HCN HCl SO 2 DEE (*1) G202s yes no no O 2 CO H 2 S H 2 C 2 H 4 O SiH 4 PH 3 COCl 2 THT (*1) G212 yes no no NO 2 Cl 2 O 3 ClO 2 G203 yes yes yes O 2 CO H 2 S H 2 NO NH 3 HCN HCl SO 2 DEE (*1) G203s yes yes yes O 2 CO H 2 S H 2 C 2 H 4 O SiH 4 PH 3 COCl 2 THT (*1) G213 yes yes yes NO 2 Cl 2 O 3 CLO 2 (*1) Please take notice of the detection range of CO and H 2 -sensors (see section Alarm thresholds - ) The s(special-)variants distinguish itself by the possibility to measure special detection ranges, resp. special gases, which need a very specific measurement of the sensorsignal. All detectors allow connecting any sensor from the relevant line of the above table. Please also see section Alarm thresholds Standard settings and test gas chart Detection Principle For measuring toxic gases and oxygen the MICRO III uses electrochemical (EC) sensors. Electrochemical sensor (EC) The electrochemical cells contain an electrolyte, a working electrode (anode), a counter electrode (cathode) and, depending on the sensor type, a reference electrode. The cell is adapted to the gas to be monitored by specific electrodes and a suitable electrolyte. The electrochemical reaction generates an electrical signal, which is proportional to the gas concentration. GfG sensor cells are using the capillary diffusion barrier technology, which, in combination with an additional temperature compensation, avoids effects caused by changing atmospherical pressure and temperature. -3-
Design Diffusion inlet G202 / G202s / G212 Visual Alarm Audible Alarm LCD Display Battery Cover Operational Notes Detection Mode The detection mode provides various functions, which must be known by the user for proper operation of the gas monitor MICRO III. Turning On Turn the MICRO III on before you enter a possibly confined area. Only this makes sure that accidents caused by gas hazards are prevented. Turn On Insert Battery At first stage the MICRO III checks, if a valid sensor is fit, and if not, the rear LED flashes. The display (in models G 202/G 202s/G 212) reads SENS.ERR. This fault report is indicated until a valid sensor is plugged in. Then the MICRO III does a complete self-check. Both LEDs light up shortly, and the buzzer sounds for approx. 1 second. The battery capacity is displayed as well (see Check of Battery Capacity). The warm-up time of the sensor is indicated by an audible signal every second, and the display (models G 202/G 202s/G 212) reads a countdown. Once the self-check is completed, the MICRO III turns to detection mode. The models with LCD display (G 202 / G 202s / G 212) indicate the gas and the concentration, e.g.: Display G 202/G 202s/G 212 0.0 PPM alternating 0.0 CL2 Depending on the parameter setting, either a visual or an audible confidence beep in regular intervals is activated during the detection mode. This signal proves that the detector is ready for operation. You can choose between a visual and an audible signal (see section Confidence Beep). Turning Off The current consumption of the MICRO III is very low. A single battery is sufficient for continuous operation of 6 months, depending on alarm and display conditions. This means that you do not necessarily need to turn the detector off. Turn off Remove Battery -4-
Alarm Should the gas concentration exceed a pre-set threshold, a visual and audible alarm is triggered immediately. The MICRO III provides several alarm thresholds: Detectors for: Description Alarm Thresholds Toxic AL 1 Alarm 1, exceeding s Gases AL 2 Alarm 2, exceeding s AL 3 Alarm 3, exceeding s AL 1 Alarm 1, falling below t Oxygen AL 2 Alarm 2, falling below t AL 3 Alarm 3, falling below s The thresholds AL1, AL2 and AL 3 stand for instantaneous concentration alarms. Alarm Signals The alarms are distinguished by means of different flash and sound frequencies of the alarm signals: Alarm Audible and Visual Alarm Alarm Signal Priority AL 1 slow sound and flash frequency 2 x 2 x... low AL 2 medium sound and flash frequency 4 x 4 x... medium AL 3 fast sound and flash frequency 8 x 8 x... high The models with LCD display (G 202 / G 202s / G 212) indicate the gas and the alarm threshold, e.g. Display G 202/G 202s/G 212 7.5 AL2 alternating 7.5 CL2 Special Notes for Oxygen Monitoring Sour gases like CO 2 and SO 2 are easily absorbed by the electrolyte of the oxygen sensor. This results in an increased oxygen signal of e.g. approximately 0.3 % of the measurement value per 1 Vol.-% CO 2. The oxygen sensor, therefore, cannot be recommended for continuous measurement in concentrations above 25 Vol.-% CO 2. If the carrier gas is a gas with a molecular weight, which is different from that for nitrogen, the display values may also be incorrect. There are no cross sensitivities of the oxygen sensor for toxic gas concentrations within the TLV range. Battery The MICRO III is powered by one 1.5 V Mignon alkaline cell. This battery allows a continuous operation of up to 6 months. The operational time may be reduced by frequent alarms, by display indication for detector models with display or by activated confidence beep. This battery has to be bought from the manufacturer, the company GfG. Internal controls ensure the use of batteries prescribed by the EC-Type examination. The correct battery types are: Duracell PROCELL MN 1500 LR6 AA or INDUSTRIAL BY DURACELL ID1500 AA (LR6). Battery Alarm The MICRO III permanently monitors the battery voltage and gives a warning, if it falls below the minimum voltage of approx. 5 % of the battery capacity. A battery alarm is indicated by an audible warning. Audible Battery Alarm Alarm Signal fast sound frequency (2 pulses) 2 x 6 seconds pause 2 x.... -5-
The models with LCD display indicate the battery capacity via the display XX bat, e.g. Display G 202/G 202s/G 212 5 bat The remaining capacity after the first battery alarm allows detection for at least another 15 minutes. For safe operation the battery is to be replaced as soon as possible. Should the battery voltage become so low that proper functioning is no longer possible, the detector turns off automatically. The display (models G202 / G202s / G212) reads bat. EMPTY. This reading is shown until the battery is replaced or until the battery is completely discharged. Battery Replacement (only in safe area, outside of Ex-areas) Note The Duracell PROCELL MN 1500 LR 6 AA and INDUSTRIAL BY DURACELL ID1500 AA (LR6) batterys must be inserted or replaced in safe areas only. Take care of the correct polarity when fitting the battery (fit the plus pole first). Once the battery is fit, the MICRO III effects a self-check, testing the visual and audible alarms. Slide battery cover to the top Replace battery For battery replacement slide the battery cover to the top. Then take the old battery out and replace it by a new one. Note: Use only Ex-proof batteries in hazardous areas! Watch out for the correct polarity of the new battery! Fit battery with + pole first! Service Mode In the service mode you can check the battery, the confidence beep and the calibration. Adjustment procedures are done by means of the Reed contact and a magnet. Reed Contact The functions of the models without keypad (G201 and G202/G202s/G212) can be triggered by means of a built-in Reed contact. A Reed Contact is an electrical switch, which is externally controlled at the outside of the detector by means of a magnet. Hold the magnet to the side of the detector (see illustration). The different functions in the service mode are activated by different periods of holding the magnet to the Reed contact. The magnet acceptance is indicated by a short buzzer signal. Once the relevant flash frequency is completed, take the magnet away. The G201 indicates this stage additionally by a short beep. The models G202/G202s/G212 indicate this stage by displaying the relevant menu point. Battery Check Activate battery check Use the magnet to control the Reed contact for max. 1 second. Once the a.m. self check is completed, the battery capacity is indicated by a multiple signal. 1 2 3 4 5 Number of signals exhausted full Battery capacity -6-
The models with display indicate the capacity in the LCD readout as well: e.g. 90 bat = 90 % battery capacity. Display G202/G202s/G212s 90 bat Confidence Beep During detection mode, an audible or visual signal reminds the user in regular intervals, that the detector is turned on. The interval of this confidence beep is 1 minute. Signal G 201 G 202 G 202s G 212 Standard setting visual short visual alternating display of gas and unit Confidence beep after change audible short audible short visual alternating display of gas and unit For changing the confidence beep, adhere to the procedure below: Change G 201 G 202 G 202s G 212 Activation Use magnet to control the Reed contact for approx. 2 seconds, until the top LED flashes twice. Point of drawing back after the beep short BEEP ON Display readout BEEP OFF Display readout Indication of selected confidence beep signal Beep long LED long Beep long if audible signal has been activated if visual signal has been activated BEEP OFF Display readout if visual signal has been activated BEEP ON Display readout if audible signal has been activated The function confidence beep control allows indicating the confidence beep without changing it. Control G 201 G 202 G 202s G 212 Activation Use magnet to control the Reed contact for approx. 5 seconds, until the top LED flashes 3 times. Point of drawing back after the beep short Exit Display readout -7-
Sensor Adjustment in Fresh Air The fresh air adjustment sets the MICRO III in clean ambient air to its nominal value, which is 0 ppm for toxic gases (e.g. CO, H 2 S) and 20.9 Vol.-% for oxygen. This means, that for toxic gas sensors the zeropoint is adjusted, while for oxygen the sensitivity is calibrated. Calibration G 201 G 202 G 202s G 212 Activation Point of drawing back Indication during calibration Use magnet to control the Reed contact for approx. 8 seconds, until the top LED flashed 4 times. after the beep short LED flashes in low frequency... AUTO-CAL Display readout for oxygen sensor LED flashing 20.9 O2 alternating 20.9 CAL AUTO-ZPT Display readout for Tox sensors LED flashing 0.0 CL2 alternating 0.0 ZPT Indication after successful calibration 3 x Beep 3 x Beep STORE 3 x Beep STORE Fault indication LED flashes in high frequency... LED flashing in high frequency ERROR LED flashing in high frequency ERROR Reset of fault indication Use magnet to control the Reed contact for approx. 1 second. During the fresh air adjustment the LED flashes in short intervals as long as the gas concentration is checked. The display (G202 / G202s / G212) reads the current measurement value and the kind of gas and, alternating, CAL or ZPT. Successful adjustment is indicated by three buzzer signals and by STORE in the display (G202 / G202s / G212). Should the detector notice a fault during the adjustment, the LED flashes in a high frequency, and the display reads ERROR. Potential faults are a faulty sensor or a gas concentration, which is beyond the valid tolerance. In such cases please call GfG s service. Activating the magnet contact shortly can reset the fault indication. Once the adjustment is completed successfully, the MICRO III returns to detection mode. -8-
Sensor Adjustment with Test Gas The test gas adjustment sets the MICRO III to a gas specific nominal value. This means that for toxic gas sensors the sensitivity is calibrated, while for the oxygen sensor the zeropoint is adjusted. For toxic gas sensors make sure that the fresh air adjustment is effected before calibration. Now you need the correct test gas. Test gases are: For toxic gases e.g. carbon monoxide (CO), hydrogen sulfide (H 2 S) etc. For the correct test gas please refer to the test report of your detector. For oxygen 100 Vol.-% nitrogen Calibration procedure: Put the calibration adapter over the diffusion inlet of the MICRO III. For avoiding mistakes in calibration make sure that the MICRO III is exposed to a constant test gas flow for approx. 3 minutes. The flow rate should be 0.5...0.6 l/min. Calibration G 202 202s G 212 Activation Point of drawing back Indication during calibration Use magnet to control the Reed contact for approx. 11 seconds, until the top LED flashes 5 times. after the beep short LED flash in low frequency... AUTO-ZPT Display readout for oxygen sensor LED flashing 00.0 O2 alternating 00.0 ZPT AUTO-CAL Display readout for Tox sensors LED flashing 3.0 CL2 alternating 3.0 CAL Indication after successful calibration 3 x Beep 3 x Beep STORE 3 x Beep STORE Fault indication LED flashing in high frequency... LED flashing in high frequency ERROR LED flashing in high frequency ERROR Reset of fault indication Use magnet to control the Reed contact for approx. 1 second. The indications during and after the test gas adjustment are the same as those for the fresh air adjustment. Once the sensitivity calibration is completed successfully, the MICRO III automatically returns to detection mode. -9-
Sensor Replacement Note: Sensors may only be replaced in safe areas (non Ex-areas). Before an expert replaces the sensor, the battery must be removed as described above. Slide the battery cover off the casing completely. Now pull the sensor out and replace it by a new one. All detectors allow connecting any sensor from the relevant line. Finally re-fit battery and battery cover. Note: ERROR An Error message may appear in the display, if the O-ring (sensor seal) is missing. In this case you have to replace the rubber ring. Adjustment by means of Configuration Program The optional configuration program allows to connect the MICRO III to a PC by means of an adapter and to change the settings below: Alarm thresholds Alarm activation and deactivation Calibration gas concentration Time interval of confidence beep (6 to 90 seconds). Annex Cleaning Give the MICRO III a short sight check after use. Use a damp cloth to remove stains or soiling from the casing. Never use solvents or cleaning agents! Service and Repair Service stands for maintenance, inspection and repair of gas warning equipment. The function test must be done at least once a year and checks: the charge status of the battery the indication and, if necessary, the adjustment with zero gas and standard test gas the activation of gas alarms, e.g. with alarm test gas the response time This test has to be done by an expert, and a written confirmation must be filed. In case of repairs, only genuine spare parts are to be used, and the manufacturer s instructions have to be adhered to. Maintenance and Inspection Maintenance and inspection describe those measures, which retain the nominal status of the MICRO III. They include a regular check and adjustment of sensitivity and zeropoint. In addition to this, the working order of the detector is to be checked as well. Make the MICRO III pass a test before it is being used. This test checks: the charge status of the battery, the display with zero gas and with test gas, the activation of gas alarms. -10-
Accessories Description Art.-No. Leather case 1318206 Calibration adapter 1318202 Configuration software with adaptercable for PC 1318203 Magnet for reed contact (G202, G212) 1318204 Rubber cover cpl. 1318214 Sampling pump for Micro III 1318215 Spare parts Description Art.-No. Alkaline Battery INDUSTRIAL BY DURACELL ID1500 AA (LR6) 1318201 Battery cover 1318315 Rubber cover top 1318208 Rubber cover bottom 1318209 Filter (PTFE) for sensor protection, 10 each 1318310 Gasket for sensor and filter, 10 each 1318311 Ammonia sensor 0.. 200 ppm NH 3 MK393-5 on request Ammonia sensor 0.. 500 ppm NH 3 MK399-5 on request Ammonia sensor 0.. 200 ppm NH 3 MK453-5 1318279 Ammonia sensor 0.. 1000 ppm NH 3 MK454-5 1318280 Chlorine sensor 0... 10 ppm Cl 2 MK390-5 1318246 Chlorine dioxide sensor 0 2 ppm ClO 2 (CLO) MK391-5 1318247 Hydrogen chloride sensor 0... 30 ppm HCl MK392-5 1318249 Hydrogen cyanide sensor 0... 50 ppm HCN MK409-5 1318255 Ethylene oxide sensor 0... 20 ppm C 2 H 4 O (ETO) MK379-5 1318241 Carbon monoxide sensor 0.. 300 ppm CO (reduced H 2 -sensitivity) MK369-5 on request Carbon monoxide sensor 0.. 500 ppm CO (reduced H 2 -sensitivity) MK369-6 on request Carbon monoxide sensor 0.. 500 ppm CO MK443-5 1318275 Carbon monoxide sensor 0.. 2000ppm CO MK443-6 1318276 Ozone sensor 0 1 ppm O 3 MK411-5 1318257 Phosgene sensor 0 2 ppm COCl 2 (PGN) MK349-5 1318248 Phosphine sensor 0... 10 ppm PH 3 MK353-5 1318242 Oxygen sensor 0.. 25 Vol.% O2 (2-year sensor) MK383-5 1318266 Sulfur dioxide sensor 0... 10 ppm SO 2 MK440-5 1318269 Hydrogen sulphide sensor 0.. 100 ppm H2S MK445-5 1318277 Hydrogen sulphide sensor 0.. 500 ppm H 2 S MK445-6 1318278 Nitrogen dioxide sensor 0... 30 ppm NO 2 MK348-5 1318238 Nitrogen monoxide sensor 0.. 100 ppm NO MK347-5 1318244 Hydrogen sensor 0.. 2000ppm H 2 MK396-5 1318250 Hydrogen sensor 0 1 Vol.% H 2 MK402-5 1318258 Hydrogen sensor 0 4 Vol.% H 2 MK403-5 1318259 Spare parts and accessories should be stored at an ambient temperature of 0 to 30 C. The storage time should not exceed 5 years. For batteries and sensors shorter storage times of 1½ years are valid. When storing oxygen sensors, please notice -11-
Sensor specification MK347-5 Electrochemical Sensor for Nitrogen monoxide NO 0 1000 ppm 3 ppm / 1 ppm T 90 : <30 sec Pressure 80...120 kpa: max. 1ppm or 7% of display (regarding to 100 kpa) Humidity 15%...90% r.h.: max. 1ppm or 7% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 2ppm or 7% of display (regarding to 20 C) Cross sensitivities: NO 2 : <30%, H 2 S: 10%, CO: 0%, SO 2 : 0% (*1) Warm-up time: 3 minutes up to 1 day depending on time the detector has been turned off MK348-5 Electrochemical Sensor for Nitrogen dioxide NO 2 0 30 ppm 0.6 ppm / 0.2 ppm T 90 : <30 sec Pressure 80...120 kpa: max. 0,3ppm or 5% of display (regarding to 100 kpa) Humidity 15%...90% r.h.: max. 0,3ppm or 5% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 0,3ppm or 5% of display (regarding to 20 C) Cross sensitivities: Cl 2 : 100%, H 2 S: %, CO: 0%, SO 2 : 0%, NO: 0% (*1) 3 years MK349-5 Electrochemical Sensor for Phosgene COCl 2 0 2 ppm 0.02 ppm / 0.01 ppm T 90 : <150 sec Pressure 80...120 kpa: max. 0,02ppm or 10% of display (regarding to 100 kpa) Humidity 10%...95% r.h.: max. 0,02ppm or 10% of display (regarding to 50% r.h.) Temperature -20...+40 C: max. 0,02ppm or 10% of display (regarding to 20 C) Cross sensitivities: ClO 2 :-300%, HCl:250%, AsH 3 :90%, Cl 2 :40%, NO 2 :-10%, O 3 :10% (*1) 1..1,5 years MK353-5 Electrochemical Sensor for Phosphine PH 3 0 10 ppm 0.05 ppm / 0.05 ppm T 90 : <90 sec Pressure 80...120 kpa: max. 0,05ppm or 10% of display (regarding to 100 kpa) Humidity 15%...90% r.h.: max. 0,05ppm or 10% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 0,05ppm or 10% of display (regarding to 20 C) Cross sensitivities: SiH 4 : 90%, GeH 4 : %, AsH 3 : 65%, B 2 H 6 : 35%, SO 2 : 20%, CO: <0,5% H 2 : % (*1) MK369-5 /-6 Electrochemical Sensor for Carbon monoxide CO 0 300 ppm / 500 ppm 3 ppm T 50 : <20 sec T 90 : <50 sec Pressure 80...120 hpa: max. 3ppm or 10% of display (regarding to 100 kpa) Humidity 15%...90% r.h.: max. 3ppm or 10% of display (regarding to 50% r.h. @ 20 C) Temperature -20...+50 C: max. 3ppm or 15% of display (regarding to 20 C) Cross sensitivities: H 2 S: 3%, C 2 H 4 :60%, NO: <35%, NO 2 :10%, H 2 : <10%, SO 2 : 0% (*1) MK379-5 Electrochemical Sensor for Ethylene oxide C 2 H 4 O (ETO) 0 20 ppm 0.3 ppm / 0.1 ppm T 90 : <120 sec Pressure 80...120 kpa: max. 1ppm or 15% of display (regarding to 100 kpa) Humidity 15%...90% r.h.: max. 2ppm or 15% of display (regarding to 50% r.h.) Temperature 0...+30 C: max. 1ppm or 15% of display (regarding to 20 C) -20...+50 C: max. 2ppm or 20% of display (regarding to 20 C) Cross sensitivities: CO: %, CH 4 O: %, C 2 H 2 : %, CH 2 O: %, CH 4 S: %, C 2 H 4 : %, C 2 H 6 O: 5%, C 4 H 10 O: C 7 H 8 : 0%, MEK: 0% and others. (*1) Warm-up time: 4 minutes up to 7 days depending on time the detector has been turned off MK383-5 Electrochemical Sensor for Oxygen O 2 0 25 vol. % 0.3 vol. % / 0.1vol. % T 20 : <8 sec T 90 : <20 sec Pressure 80...120 kpa: max. 0,2vol. % or 2.5 % of detection range (regarding to 100 kpa) Humidity 0%...99% r.h.: max. 0,2vol. % or 2.5 % of detection range (regarding to 50% r.h.) Temperature -20...+50 C: max. 3ppm or 2.5% of display (regarding to 20 C) 2 years in air MK390-5 Electrochemical Sensor for Chlorine Cl 2 0 10 ppm 0.1 ppm / 0.1 ppm T 90 : <30 sec Pressure 80...120 kpa: max. 0,2ppm or 10% of display (regarding to 100 kpa) Humidity 10%...95% r.h.: max. 0,2ppm or 10% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 0,2ppm or 10% of display (regarding to 20 C) Cross sensitivities: ClO 2 : %, F 2 : %, NO 2 : 20%, O 3 :20%, SO 2 : 18%, CO 2 :0% H 2 S: -3%, CO:0%, H 2 :0% (*1) -12-
MK391-5 Electrochemical Sensor for Chlorine dioxide ClO 2 0 2 ppm 0.03 ppm / 0.01 ppm T 90 : <120 sec Pressure 80...120 kpa: max. 0,05ppm or 10% of display (regarding to 100 kpa) Humidity 10%...95% r.h.: max. 0,05ppm or 10% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 0,05ppm or 10% of display (regarding to 20 C) Cross sensitivities: Cl 2 : %,O 3 :-280%, H 2 S: -25%, H 2 =CO: 0%, (*1) 1..2 years MK392-5 Electrochemical Sensor for Hydrogen chlorine HCl 0 30 ppm 0.4 ppm / 0.2 ppm T 90 : <90 sec Pressure 80...120 kpa: max. 1ppm or 10% of display (regarding to 100 kpa) Humidity 10%...95% r.h.: max. 1ppm or 10% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 1ppm or 15% of display (regarding to 20 C) Cross sensitivities: AsH 3 :350%, PH 3 :300%, H 2 S:65%, NO:45%, SO 2 :40%, HCN:35%, Cl 2 :6%, NO 2 :3%, NH 3 :0.1%, CO=CO 2 =H 2 :0% (*1) MK393-5 Electrochemical Sensor for Ammonia NH 3 0 200 ppm 3 ppm / 1 ppm T 90 : <60 sec Pressure 80...120 kpa: max. 1ppm or 10% of display (regarding to 100 kpa) Humidity 10%...95% r.h.: max. 1ppm or 10% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 1ppm or 15% of display (regarding to 20 C) Cross sensitivities: H 2 S: 10%, CO: 0%, CO 2 : 0%, H 2 : 0% (*1) MK396-5 Electrochemical Sensor for Hydrogen H 2 0 2000 ppm 50 ppm / 2 ppm T 90 : <90 sec Pressure 80...120 kpa: max. 0,01Vol.% or 10% of display (regarding to 100 kpa) Humidity 10%...90% r.h.: max. 0,01Vol.% or 10% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 0,02Vol.% or 20% of display (regarding to 20 C) Cross sensitivities: C 2 H 4 :80%, NO:35%, HCN:30%, C=<20%, H 2 S<20%, NO 2 =SO 2 =Cl 2 =HCl=0% (*1) MK399-5 Electrochemical Sensor for Ammonia NH 3 0 500 ppm 10 ppm / 5 ppm T 90 : <90 sec Pressure 80...120 kpa: max. 5 ppm or 10% of display (regarding to 100 kpa) Humidity 10%...95% r.h.: max. 5 ppm or 10% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 5 ppm or 20% of display (regarding to 20 C) Cross sensitivities: NO 2 :65%, H 2 S:60%, Cl 2 : 20%, SO 2 :-10%, CO=NO=H 2 =0% (*1) MK402-5 Electrochemical Sensor for Hydrogen H 2 (*2) 0 1 vol.% 0.02 vol. % / 0.01 vol. % T 90 : <90 sec Pressure 80...120 kpa: max. 0,01Vol.% or 10% of display (regarding to 100 kpa) Humidity 10%...90% r.h.: max. 0,01Vol.% or 10% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 0,02Vol.% or 20% of display (regarding to 20 C) Cross sensitivities: NO 2 :-400%, CO:150%, H 2 S:20%, C 2 H 4 : yes, NH 3 =CO 2 =Cl 2 =SO 2 =HCN=0% (*1) MK403-5 Electrochemical Sensor for Hydrogen H 2 (*2) 0 4 vol.% 0.05 vol. % / 0.01 vol. % T 90 : <90 sec Pressure 80...120 kpa: max. 0,01Vol.% or 10% of display (regarding to 100 kpa) Humidity 10%...90% r.h.: max. 0,01Vol.% or 10% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 0,02Vol.% or 25% of display (regarding to 20 C) Cross sensitivities: H 2 S:220%, C 2 H 4 :yes, CO:0% (*1) MK409-5 Electrochemical Sensor for Hydrogen cyanide HCN 0 50 ppm 1.5 ppm / 0.5 ppm T 90 : <60 sec Pressure 80...120 kpa: max. 0,5 ppm or 10% of display (regarding to 100 kpa) Humidity 10%...95% r.h.: max. 0,5 ppm or 10% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 0,5 ppm or 15% of display (regarding to 20 C) Cross sensitivities: NO 2 : -70%, NO:-5%, H 2 S: 0 200% (according to filter saturation), CO=CO 2 =H 2 =0% (*1) 2 years MK411-5 Electrochemical Sensor for Ozone O 3 0 1 ppm 0.02 ppm / 0.5 ppm T 90 : <60 sec Pressure 80...120 kpa: max. 0,03 ppm or 10% of display (regarding to 100 kpa) Humidity 10%...95% r.h.: max. 0,03 ppm or 10% of display (regarding to 50% r.h.) Temperature -10...+45 C: max. 0,03 ppm or 15% of display (regarding to 20 C) Cross sensitivities: ClO 2 :%, Cl 2 : 12%, NO 2 : 60, H 2 :0%, H 2 S:-8% (*1) 2 years -13-
MK440-5 / -6 Electrochemical Sensor for Sulfur dioxide SO 2 0 10 / 50ppm 0,2 ppm / 0,1 ppm T 90 : <30 sec Pressure 80...120 kpa: max. 0,2ppm or 5% of display (regarding to 100 kpa) Humidity 15%...90% r.h.: max. 0,3ppm or 3% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 0,3ppm or 5% of display (regarding to 20 C) Cross sensitivities: C 2 H 2 :<300%, NO 2 :<-170%, C 2 H 4 :<90%, HCN:<50%, Cl 2 :<-40%, NO:<10%, CO:<0,5%, H 2 S:<0,5%, H 2 :<0,5%, NH 3 :0% (*1) 3 years MK443-5 / -6 Electrochemical Sensor for Carbon monoxide CO 0 500 / 2000 ppm 3 ppm / 1 ppm T 50 : <10 sec T 90 : 30 sec Pressure 80...120 kpa: max. 3ppm or 10% of display (regarding to 100 kpa) Humidity 15%...90% r.h.: max. 3ppm or 5% of display (regarding to 50% r.h.) Temperature -20...+40(50) C: max. 3ppm or 5(10)% of display (regarding to 20 C) Cross sensitivities: C 2 H 4 :96%, C 2 H 2 :90%, H 2 <30%(typ.15%), NO<20%, Cl 2 <7%, C 2 H 6 O<0,5%, SO 2 =NH 3 =H 2 S=0% (*1) 3 years MK445-5 / -6 Electrochemical Sensor for Hydrogen sulphide H 2 S 0 100 ppm / 0 500ppm 0,5ppm / 0,1 ppm / 1ppm / 0,5ppm T 50 : <10 sec T 90 : <30 sec Pressure 80...120 kpa: max. 0,2ppm or 5% of display (regarding to 100 kpa) Humidity 15%...90% r.h.: max. 0,2ppm or 5% of display (regarding to 50% r.h. @ 20 C) Temperature -20...+40(50) C: max. 0,2ppm or 5(10)% of display (regarding to 20 C) Cross sensitivities: NO 2 <10%, CO<2%, NO<1%, CO 2 =SO 2 =Cl 2 =NH 3 =C 2 H 4 =0%, low methanol cross sensitivity (*1) 3 years MK453-5 Electrochemical Sensor for Ammonia NH 3 0 200 ppm 3 ppm / 1 ppm T 90 : <45 sec Pressure 80...120 kpa: max. 1ppm or 10% of display (regarding to 100 kpa) Humidity 10%...95% r.h.: max. 1ppm or 10% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 1(2)ppm or 15(20)% of display (regarding to 20 C) Cross sensitivities: H 2 S:120%, NO 2-100%, SO 2 :-30%, CO=NO=CO 2 =H 2 =C 2 H 6 O=0% (*1) MK454-5 Electrochemical Sensor for Ammonia NH 3 0 1000 ppm 10 ppm / 5 ppm T 90 : <60 sec Pressure 80...120 kpa: max. 5ppm or 10% of display (regarding to 100 kpa) Humidity 10%...95% r.h.: max. 5ppm or 10% of display (regarding to 50% r.h.) Temperature -20...+50 C: max. 10ppm or 20% of display (regarding to 20 C) Cross sensitivities: H 2 S:140%, NO 2-100%, SO 2 :-30%, CO=NO=CO 2 =H 2 =C 2 H 6 O=0% (*1) (*1): Displayed value with reference to the supplied gas concentration, which lies in the range of the TLV value. (*2): Not approved for monitoring of the lower explosion limit for applications of the primary explosion protection. -14-
Alarm thresholds-standard settings and test gas chart Germany: Instantaneous alarms following to TRGS 900 Alarm 1 Alarm 2 Alarm 3 Cal.-Gas 1. 1,00/4,00 Vol.% H 2 Hydrogen (*2) 0,20 (*2) 0,40 (*2) 0,60 (*2) 1,00 2. 25 Vol.% O 2 Oxygen 19,0 17,0 23,0 20,9 3. 300/500 ppm CO Carbon monoxide 30 60 300 200 4. 100 ppm H 2 S Hydrogen sulphide 10 20 100 50 5. 100 ppm NO Nitrogen monoxide 25 50 100 100 6. 200 ppm NH 3 Ammonia 50 100 200 100 7. 50,0 ppm HCN Hydrogen cyanide 10,0 20,0 50,0 50,0 8. 30,0 ppm HCl Hydrogen chloride 5,0 10,0 30,0 10,0 9. 10,0 ppm SO 2 Sulphur dioxide 2,0 4,0 10,0 10,0 G202, G203 G202s, G203s 1. 2000 ppm H 2 Hydrogen (*2) 1000 (*2) 1500 (*2) 2000 (*2) 1000 2. 25,0 Vol.% O 2 Oxygen 19,0 17,0 23,0 20,9 3. 1000/2000 ppm CO Carbon monoxide 30 60 300 400 4. 500 ppm H 2 S Hydrogen sulphide 10 20 100 100 5. 20,0 ppm C 2 H 4 O Ethylene oxide 2,0 (*3) 4,0 20,0 20,0 6. 10,00 ppm PH 3 Phosphine 0,30 (*3) 0,40 (*3) 10,00 5,00 7. 1,00 ppm COCl 2 Phosgene 0,10 (*3) 0,20 (*3) 1,00 1,00 G212, G213 1. 30,0 ppm NO 2 Nitrogen dioxide 5,0 10,0 30,0 20,0 2. 10,0 ppm Cl 2 Chlorine 0,5 1,0 10,0 5,0 3. 1,00 ppm O 3 Ozone 0,10 0,20 1,00 0,70 4. 2,00 ppm ClO 2 Chlorine dioxide 0,10 0,20 1,00 1,00 (*2): Not approved for monitoring of the lower explosion limit for applications of the primary explosion protection. (*3): A reliable TLV (threshold limit value) monitoring is not possible with the sensor technology currently available. -15-
USA: Alarm 1 Alarm 2 Alarm 3 Cal.-Gas 1. 1,00/4,00 Vol.% H 2 Hydrogen (*2) 0.20 (*2) 0.40 (*2) 0.60 (*2) 1.00 2. 25 Vol.% O 2 Oxygen 19.5 17.0 23.5 20.9 3. 300/500 ppm CO Carbon monoxide 35 200 300 200 4. 100 ppm H 2 S Hydrogen sulphide 10 15 100 20 5. 100 ppm NO Nitrogen monoxide 25 50 100 50 6. 200 ppm NH 3 Ammonia 25 50 200 100 7. 50,0 ppm HCN Hydrogen cyanide 5 10 50 50 8. 30,0 ppm HCl Hydrogen chloride 5 10 30 10 9. 10,0 ppm SO 2 Sulphur dioxide 2 5 10 5 G202, G203 G202s, G203s 1. 2000 ppm H 2 Hydrogen (*2) 1000 (*2) 1500 (*2) 2000 (*2) 1000 2. 25,0 Vol.% O 2 Oxygen 19.5 17.0 23.5 20.9 3. 1000/2000 ppm CO Carbon monoxide 35 200 300 400 4. 100 ppm H 2 S Hydrogen sulphide 10 15 100 20 5. 20,0 ppm C 2 H 4 O Ethylene oxide 2 5 20 10 7. 10,00 ppm PH 3 Phosphine 0.3 1.0 10.0 5.0 8. 1,00 ppm COCl 2 Phosgene 0.1 0.2 1.0 1.0 G212, G213 1. 30,0 ppm NO 2 Nitrogen dioxide 3 5 30 10 2. 10,0 ppm Cl 2 Chlorine 0.5 1.0 10.0 5.0 3. 1,00 ppm O 3 Ozone 0.1 0.2 1.0 0.7 4. 2,00 ppm ClO 2 Chlorine dioxide 0.1 0.3 1.0 1.0 (*2): Not approved for monitoring of the lower explosion limit for applications of the primary explosion protection. -16-
Technical Data Detector type: MICRO III Detection principle: electrochemical sensor (EC) Detection Ranges: see section Type of Sensors and Detection Ranges T 90 : see section Sensor Specification Expected sensor life: see section Sensor Specification Climatic effects: see section Sensor Specification Display: LCD display (G202/ G202s/ G212) Alarm: visual and audible warning 3 instantaneous value alarms see Basic Adjustment of Alarm Thresholds Gas supply: Diffusion Zeropoint/Calibration: with calibration adapter at a flow rate of 0.5...0.6 l/min Climatic Conditions: for operation: -20...+55(45) C / 10...95% r.h. / 80...120kPa please also see Sensor Specification for storage: -25...+55 C / 10...95% r.h. / 80...120kPa (recomm. 0...+30 C) Power supply: 1 AA battery (mignon), 1.5 V / Duracell PROCELL MN 1500 LR6 AA or INDUSTRIAL BY DURACELL ID1500 AA (LR6) Operational time: up to 9 months (G 201), 6 months (G 202/G 202s/G 212), may be reduced depending on alarm frequency and battery type Casing Casing material: Polycarbonate, metalised Dimensions: 47 x 88 x 25 mm (WxHxD) Weight: min. 61 g -Model without display, without keypad, with CO sensor max. 85.6 g -Model with display, with keypad, with O 2 sensor Protection: IP54 Approval: Electromagnetic Compatibility: DIN EN 50270:2006 Type class 1 and Type class 2 Labelling and ignition protection: only when used with Duracell PROCELL MN 1500 LR6 AA or INDUSTRIAL BY DURACELL ID1500 AA (LR6) II 2G Ex ib IIC T4 resp. T3 Gb -20 CT a +45 C resp. + 55 C For using the pump (see accessories) the detector unit is subject to the temperature classification of the Micro III. EC type approval: DMT 99 ATEX E 044 Production supervision: 0158 (by named testing body - DEKRA EXAM) Worldwide Supplier of Gas Detection Solutions 180-000.15_OM_G2X2x.doc Edition 21. April 2016 from Firmware Version 2.21 We reserve the right of modification GfG Gesellschaft für Gerätebau mbh Klönnestr. 99 D-44143 Dortmund Phone: +49-231-56400 0 Fax: +49-231-516313 E-Mail: info@gfg-mbh.com Internet: http://www.gfg.biz -17-
EC-Type Examination Certificate -18-
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