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Bacharach Parasense GRM2 CO2 Series, Operation & Maintenance Manual

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Bacharach Parasense GRM2 CO2 Series Operation & Maintenance Manual Download Page 71

 

7-35 

 

Operation & Maintenance Manual 
Doc. Ref. MNGRM2CO2 REV. 3 

The calibration procedure to be conducted as follows: 
 
1.  Open the sensor enclosure and locate Pot VR201 on the sensor PCB. VR201 is used to adjust 

the zero point (refer to the picture below). 

2.  Monitor the output between 0V (negative) and VS (positive).  
3.  Adjust Pot VR201 to 0V or slightly positive (0.01 V is acceptable). 
4.  Locate Pot VR202 which is used to calibrate the range (span) of the sensor (refer to the picture 

below). 

5.  Monitor the output between 0V (negative) and VS (positive). 
6.  Expose the sensor to calibration gas and allow to stabilize (approximately 6 minutes). 
7.  Adjust pot VR202 to the voltage calculated on the previous page. 
 
 

 

 

Summary of Contents for Parasense GRM2 CO2 Series

Page 1: ...GRM2 CO2 REFRIGERANT MONITOR OPERATION MAINTENANCE MANUAL Models GRM2 104D2 1xxCO2 Doc Ref MNGRM2CO2 REV 3...

Page 2: ...ossible it may contain unintentional typographical or technical errors Any errors found are changed and incorporated into a revised edition of this document Parasense assumes no responsibility for its...

Page 3: ...TWORKED GAS SENSORS 2 9 OPTIONAL ATM2R SINGLE MULTIPLE BEACON INSTALLATION 2 10 OPTIONAL NETWORKED GAS SENSORS 2 11 OPTIONAL ANALOGUE SENSOR TRIP MODULE 2 12 3 ADC 104 TERMINAL PANEL OPTIONAL 3 1 ADC...

Page 4: ...ALIBRATION CO2 CLAIRAIR SENSOR 7 19 SYSTEM TEST RS485 NETWORKED SAMMS 7 24 SYSTEM TEST RS485 AMMONIA NETWORKED SAMMS 7 26 SYSTEM TEST BACHARACH MGS 150 SENSORS 7 28 ZERO CALIBRATION OF SMARTGAS RS485...

Page 5: ...nagement logos added Optional ADC terminal panel details updated DG 2 3 25th Jan 2017 Improved instructions for making a network connection to the GRM2 System test instructions updated Zero calibratio...

Page 6: ...RS485 network terminals Samples are gathered locally and the information relayed back to the GRM2 CO2 via the RS485 network connection A Parasense ATM2R cluster module is required for each network se...

Page 7: ...1 2 Operation Maintenance Manual Doc Ref MNGRM2CO2 REV 3 GENERAL ARRANGEMENT...

Page 8: ...work must be carried out by SUITABLY QUALIFIED PERSONNEL ONLY and must be in accordance with the current regulations Four fixing brackets are supplied loose choose orientation horizontal vertical ins...

Page 9: ...ion of the conductors from abrasion The protective earth conductor if any shall be the last to take the strain if the cable slips in its anchorage Cable anchorages shall meet the following requirement...

Page 10: ...2 3 Operation Maintenance Manual Doc Ref MNGRM2CO2 REV 3 MAINS INPUT CONNECTIONS SINGLE GROUND EARTH SCREW CONNECTION...

Page 11: ...t Relay Module The relays are configured using the configuration tool Refer to the monitor setup section of this manual for more information Relays become energised when the monitor is powered up i e...

Page 12: ...e mounted RJ45 connector FREEWAY INSTALLATION GUIDELINES Parasense sampling pipework known as freeway is used to draw samples of air from areas of potential leakage to the respective internal SAMM of...

Page 13: ...l be in the same room Locate sample points as close as possible to the potential leakage areas Cut the freeway straight using the Parasense supplied cutter INSTALLATION DON T S Exceed 150m 492ft of fr...

Page 14: ...2 7 Operation Maintenance Manual Doc Ref MNGRM2CO2 REV 3 NETWORK MODULE CONNECTIONS...

Page 15: ...Parasense Beacon sounders 0 6A between 50 60 C 122 140 F enclosure temperature max 5 Parasense Beacon sounders No spare capacity above 60 C 140 F Parasense Beacon sounder Imax at 24V DC When wired C N...

Page 16: ...g RS485 networked gas sensors is shown below The analogue sensor trip module RM2C 104 ATM2R must be installed at the gas sensor end of the installation either inside or outside the room being monitore...

Page 17: ...Ref MNGRM2CO2 REV 3 OPTIONAL ATM2R SINGLE MULTIPLE BEACON INSTALLATION Each analogue sensor trip module RM2C 104 ATM2R can accommodate up to two beacon sounders Below is the diagram for the connectio...

Page 18: ...ntenance Manual Doc Ref MNGRM2CO2 REV 3 OPTIONAL NETWORKED GAS SENSORS The gas sensors are wired to the analogue sensor trip modules RM2C 104 ATM2R as detailed below Some examples of the gas sensors a...

Page 19: ...tenance Manual Doc Ref MNGRM2CO2 REV 3 OPTIONAL ANALOGUE SENSOR TRIP MODULE The analogue sensor trip module RM2C 104 ATM2R is wired as follows on the RS485 network The analogue sensor trip module with...

Page 20: ...ccordance with the current regulations Enclosure Fitting Guide 1 It must be mounted to a solid vertical surface or structure capable of supporting the stated weight We recommend the surface be built f...

Page 21: ...Doc Ref MNGRM2CO2 REV 3 ADC 104 MAINS POWER INPUT CONNECTIONS Single Ground Earth Screw Connection GRM2 CO2 WITH ADC 104 INSTALLATION OVERVIEW NOTE For full installation and maintenance details please...

Page 22: ...Windows 10 Windows 8 with variations for Windows 7 Windows XP is covered separately WINDOWS 10 8 and WINDOWS 7 1 Take a note of the current network settings of the GRM2 CO2 system please refer to the...

Page 23: ...s 192 168 0 50 then enter any value other than 50 Note there must be no other device connected to the same network with the same IP address you have used e g using the above screenshot as an example t...

Page 24: ...ick the Local Area Connection option and choose Properties from the popup menu 5 Scroll down the list in the middle of the form and click on Internet Protocol TCP IP then click the Properties button C...

Page 25: ...period of 4 minutes the display will return to the home screen The LED s will continue to indicate the current status of the system As soon as a button is pressed the display will illuminate and the...

Page 26: ...ve occurred over the recording period 1 to 14 days as set during configuration GRM2C 16 0 alarms in last 7 days Pressing the centre button on the keypad accesses the main menu Please select SAMMs list...

Page 27: ...ven during configuration is not available to the display Compressor 1 2 3 4 Alarm 5000 Crit 15000 CO2 Chan Status Conc Alarm 1 Healthy 0 None 2 Healthy 0 None 3 Sampling 0 None 4 Healthy 0 None 5 Heal...

Page 28: ...o view the most recent 100 alarms Eight entries are displayed on each page Use the buttons to highlight the desired channel The name of the selected channel is displayed at the top of the screen The a...

Page 29: ...1 2 3 4 Time Date Chan Fault 16 06 10 Mar 15 1 Pump flt Back Next page Because of the restricted space available on screen all fault descriptions are given an abbreviated format A full list of abbrev...

Page 30: ...1 Crit ON 10 05 10 Mar 10 1 Alrm ON 10 01 10 Mar 10 3 Alrt OFF 09 44 10 Mar 10 3 Alrt ON 15 58 01 Mar 10 Power ON Back Next page Because of the restricted space available on screen each event descrip...

Page 31: ...the selected channel SYSTEM TEST Select channel to test using up and down buttons Press Action to test Channel 1 SAMM 01 Back SYSTEM TEST Select channel to test using up and down buttons Press Action...

Page 32: ...isplayed MANAGEMENT Please select System test Network settings Network defaults Reboot GRM2C Change passcode Home Menu NETWORK SETTINGS Network Settings will display the current IP network settings of...

Page 33: ...to the management menu leaving the network settings unchanged Pressing the button will also abort this function and return to the management menu leaving the network settings unchanged REBOOT GRM2C I...

Page 34: ...to select If you wish to delete the characters highlight C clear and press the button All characters entered will be deleted CHANGE PASSCODE 1 2 3 4 5 6 7 8 9 C 0 E Once you have entered the new pass...

Page 35: ...s If there is no keypad activity for 3 minutes the LCD back light will switch off and the display will go dark The traffic light display will still function to the present status of the system Any key...

Page 36: ...If a reading has been detected in excess of the configured alarm thresholds the traffic light display will indicate the level of that alarm The alarm count on the home screen will be incremented and...

Page 37: ...ion afforded by the equipment Parasense offers a wide range of service and maintenance contracts remote access software and management reporting packages Details and cost of service exchange units can...

Page 38: ...d all connections are secure switch on at the internal power input module by pressing the green button close and lock the door and reinstate the mains power supply If the fault does not clear refer to...

Page 39: ...a has a higher CO2 concentration than the system is designed to monitor In exceptional circumstances it is possible that the network module AND the PSU have developed a fault All fault finding steps m...

Page 40: ...nual sample with the door open before making the following additional checks 4 Confirm solenoid 1 has 0V DC across it and solenoid 2 24V DC across it when the pump has just started running After a per...

Page 41: ...ontrast as required refer to section 5 1 4 Using the latest version of the GRM2 configuration tool Load the configuration obtained in step 2 above and send this to the GRM2 You will need a working net...

Page 42: ...he enclosure door can now be lifted off and a new one hung in place Replace the anti lift peg Reconnect the earth strap and display power lead Fit the display lead clips to the enclosure door Check al...

Page 43: ...hanged from that used in step 1 above Procedure for removal and refitting Switch off the mains supply to the monitor and wait for a few seconds while the power supply discharges Open the enclosure doo...

Page 44: ...of the enclosure To install the new SAMM block fit the new SAMM block in the vacant position Note It will only fit with the 8 short sampling pipes facing towards the front of the enclosure Fit the sh...

Page 45: ...nect the cables to the network module 3 Disconnect the pneumatic hoses at the Styx module white tee 4 and the black Y 5 Remove the 5 fixing nuts and shake proof washers on the Styx module base plate 6...

Page 46: ...er supply cables to the power input module 2 and power output cables 3 Disconnect the earth strap 4 Unscrew the four nuts 5 holding the power supply module located around the edge of the insert plate...

Page 47: ...ovided and switch off at the internal power input module using the red button 1 Disconnect the cables to the dual pilot relay module 2 Unscrew the four nuts 3 holding the dual pilot relay module in po...

Page 48: ...utine is as follows a Before commencing a system check confirm that the monitor has been running continuously for a period of at least four hours with the door closed and locked this will ensure that...

Page 49: ...nth intervals AIR FLOW INTERNAL SAMMS Disconnect the freeway sampling pipe from SAMM channel 1 using the Parasense pipe release tool and insert into the connector on the pipe from the lower port of th...

Page 50: ...as a different function as indicated D Previous Decrease C Next Increase B Enter A Menu Sensor PCB The Parasense CO2 calibration kit includes 1 x 10 litre cylinder of 100 Nitrogen test gas labelled CO...

Page 51: ...le for a second time 11 Wait for the sample process to complete 12 On the sensor PCB 12 1 Press B to zero the sensor will be displayed to confirm the sensor zero calibration has been performed NOTE Pr...

Page 52: ...been performed NOTE Pressing A rather than B exits without performing sensor span calibration 12 3 Press A to close the menu system NOTE The sensor span calibration value will be displayed on exit whi...

Page 53: ...note the ADC 12 0 value reported highlighted below in yellow Channel Bits mVolts Value Pressure 187 456 1111 Detector 2 4 Source 5 12 ADC 3 786 1918 DAC offset 518 1264 Amb Temp 210 512 307 ADC12 0 40...

Page 54: ...te the ADC 12 0 value reported highlighted below in yellow Channel Bits mVolts Value Pressure 187 456 1111 Detector 2 4 Source 5 12 ADC 3 786 1918 DAC offset 518 1264 Amb Temp 210 512 307 ADC12 0 2000...

Page 55: ...is completely empty 2 Fill to 75 full the CO2 ZERO sample bag with CO2 ZERO test gas 3 On the GRM2 CO2 display keypad navigate to the System Test screen 4 Use the Up Down keys to select a channel on...

Page 56: ...ple bag to the channel selected for System Test 6 On the sensor PCB 6 1 Press the A button to show Cal Mode 6 2 Press the B button Y on the display 6 3 Press the C button on the display to show Set Sp...

Page 57: ...C01 programming debug lead to the CC01 programming debug port on the GRM2 CO2 network module PCB 3 Open a terminal program and connect to the CC01 using 9600 baud 8 data bits 1 stop bit No parity No f...

Page 58: ...he key to exit the System Test function Normal sampling will resume Sensor 20mA Calibration 1 On the GRM2 CO2 display keypad navigate to the System Test screen This will halt the sampling activity on...

Page 59: ...Sensor PCB 7 1 Use the C and D buttons to adjust the 4mA output 8 Repeat steps 6 7 until the adc command output reads 2000 1 9 On the Sensor PCB 9 1 Press the B button Y on the display to save the val...

Page 60: ...ciated field wiring and beacon sounders using specific concentrations of the target gas referred to here as the test gas The concentration of the test gas should be greater than the critical threshold...

Page 61: ...r a successful system test Ensure the flow meter 4 is upright while the test gas is flowing to obtain an accurate flow rate reading g Allow the test gas to flow for a period of 60 seconds After 60 sec...

Page 62: ...the Parasense test gas cylinder 1 Ensure the knurled knob on valve 2 is fully unwound anti clockwise and screw valve on to the gas cylinder Ensure the sample bag valve 5 is fully shut c Connect the i...

Page 63: ...ted j When the test in complete ensure valve 5 is fully closed and disconnect from the gas sensor k At the GRM2 CO2 monitor The SAMMs List screen allows you to see the current concentration of each ch...

Page 64: ...ocedures below Annual checks and gas calibration are recommended It is also recommended that sensors are replaced every 3 years or as required Calibration frequency may be extended based on applicatio...

Page 65: ...nd the output 0 5V for example will show the gas level Ideally bump tests are conducted on site in a clean air atmosphere The bump test may be carried out by utilizing either a calibration gas cylinde...

Page 66: ...over the sensor head using the multi sensor adaptor to fit the sensor or if an Exd IP66 or Remote sensor head version screw the beaker on the remote sensor head M42 thread or M35 thread adaptor It sh...

Page 67: ...sensor must be put into service mode This is carried out by pressing the following keys in this order within 6 seconds UP UP SPAN ZERO DOWN DOWN If the code is input correctly the sensor switches to t...

Page 68: ...without saving the changes press UP for 3 seconds The STATUS LED will flash red for 3 seconds and then illuminate steady green g Replace the front of the sensor and close the hinges h At the GRM2 CO2...

Page 69: ...espective items on the PCB 1 At the GDS sensor confirm the cell sensor is connected to J2 at the base of the PCB and the Analogue Sensor Trip Module RM2C 104 ATM2R is connected and supplies power via...

Page 70: ...lines and regulations Annual checks and gas calibration are recommended It is also recommended that sensors are replaced every 3 years or as required Calibration frequency may be extended based on app...

Page 71: ...elow 2 Monitor the output between 0V negative and VS positive 3 Adjust Pot VR201 to 0V or slightly positive 0 01 V is acceptable 4 Locate Pot VR202 which is used to calibrate the range span of the sen...

Page 72: ...2 Styx infrared absorption sensor 24V DC plus serial comms Sample Pumps 4 8 12 or 16 pumps 24V DC 360mA Freeway 150m 492ft length max including all spur freeway 1 spur kit 4 way split max per SAMM All...

Page 73: ...1 Operation Maintenance Manual Doc Ref MNGRM2CO2 REV 3 9 APPENDIX GRM2 CO2 GENERAL ARRANGEMENT PM2067...

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Page 76: ...2 Operation Maintenance Manual Doc Ref MNGRM2CO2 REV 3 GRM2 CO2 CONNECTION SCHEMATICS PS0748...

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Page 82: ...3 Operation Maintenance Manual Doc Ref MNGRM2CO2 REV 3 ADC 104 GENERAL ARRANGEMENT PM2098...

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Page 84: ...4 Operation Maintenance Manual Doc Ref MNGRM2CO2 REV 3 ADC 104 PANEL MOUNTING DETAILS PM2247...

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Page 86: ...5 Operation Maintenance Manual Doc Ref MNGRM2CO2 REV 3 ADC 104 CONNECTION SCHEMATIC PS0753...

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Page 90: ...6 Operation Maintenance Manual Doc Ref MNGRM2CO2 REV 3 GRM2 CO2 WITH ADC 104 INSTALLATION OVERVIEW PS0790...

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Page 92: ...7 Operation Maintenance Manual Doc Ref MNGRM2CO2 REV 3 RM2C 104 ATM2R CONNECTION DETAILS PS0768...

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Page 94: ...8 Operation Maintenance Manual Doc Ref MNGRM2CO2 REV 3 NETWORK SENSOR MOUNTING AND CONNECTIONS PS0778...

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Page 97: ...intenance Manual Doc Ref MNGRM2CO2 REV 3 Parasense Limited Phone 44 0 1452 724123 Email salesuk parasense com Web www parasense com Parasense Inc Phone 1 540 948 9919 Email sales parasense com Web www...

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