OEL CTS-M20, Installation, Operation And Maintenance Manual

Page 1: ...TTER SENSOR INSTALLATION OPERATION AND MAINTENANCE MANUAL QUATROSENSE ENVIRONMENTAL LTD 5935 OTTAWA STREE PO BOX 749 RICHMOND ONTARIO CANADA KOA 2Z0 PHONE 613 838 4005 FAX 613 838 4018 Web www QELsafe...

Page 2: ...t any time Input Power Nominal 24 VAC or 24 VDC Isolated Input Power Range 18 40VAC or 18 40VDC Sensor Type Non Dispersive Infra Red NDIR Thermo compensated aluminum block Enclosure Materials Polycarb...

Page 3: ...gnal output options include negative slope Signal end points adjustable ppm 0 10V 0 20mA Adjustable relay dead band Relay can activate for decreasing ppm Simulation mode to simulate any ppm value from...

Page 4: ...HOOTING 22 6 1 Troubleshooting Tips 22 6 2 Fault Codes 24 7 DUCT MOUNT ADAPTER CTS M2000X D00000 25 8 WIRING AND POWER SUPPLY 26 WARRANTY STATEMENT 28 Table of Figures Figure 1 Internal View and Featu...

Page 5: ...ared sensing technology The concentration of CO2 is measured by determining the amount of absorption of light in a specific frequency band An analog signal output is provided as well as a relay with a...

Page 6: ...u system is password protected Press any key for 3 seconds to enter the menu system see below for details 1 4 Output Signal Options for the analog output signal are 4 20 mA linear default or 2 10V lin...

Page 7: ...ignal is set to Sig From When Clipping is enabled the signal output will not go beyond either of the two current or Voltage end points When Clipping is disabled the signal output will go to 0V or 0mA...

Page 8: ...bration The global average for CO2 is in the order of 360ppm and should be the lowest concentration measured under most conditions 1 6 Relay One single pole double throw SPDT Form C Dry contacts with...

Page 9: ...e indicate that the first measurement is in process After 10 seconds the bottom display line will show the concentration of CO2 in ppm The measurement is updated every 10 seconds 3 Fault Indication Sh...

Page 10: ...setting Most settings use a numeric value e g 0500ppm and some use a toggle string e g Disable or Enable The keypad consists of three pushbutton switches The pushbutton switches are marked S1 S2 and S...

Page 11: ...t item in the menu tree 4 5 Menu Tree The menu tree is explained in the table below The order of items in the table is as they appear from the first item down to the last The JumperJ3 item is the firs...

Page 12: ...CO2 From ppm in steps of 0 05V or 0 10mA NOTE The units depend on the setting of JumperJ3 above NOTE Please maintain at least 4 00V or 8 00mA between Sig To and Sig From for proper operation of the o...

Page 13: ...you keep a record of the password if changed Relay Enable or Disable Enable Select Enable to update the relay status from the measured concentration When Disable is selected the relay is passive and r...

Page 14: ...n be set with the Up or Dn keys This feature is available for evaluating the user settings and testing the installation e g the travel of the valve fan speed relay set points etc can be verified Exit...

Page 15: ...when returning to measure mode Zero Cal 0ppm 50ppm 0ppm NOTE Please refer to the Calibration section in the text below for more information PROCEDURE 1 Apply 100 pure Nitrogen gas to the unit using a...

Page 16: ...inear response for span calibration above 5000ppm PROCEDURE 1 Apply 2500ppm CO2 balance Nitrogen to the unit using an M 20 calibration kit 2 Press Enter and see the appear on the bottom LCD line 3 Wai...

Page 17: ...ures Some of the items in the Factory Menu Require Zero Gas and some require a calibrated DMM If Disable is selected this item is the end of the menu list Pressing Dn will roll over to the top menu it...

Page 18: ...es the input impedance of the target system REQUIRED 1 Calibrated DMM 3 or 4 digit 2 Philips screwdriver to open cover POCEDURE 1 Disconnect the SIG line on TB1 if you are not performing a 0 20mA in c...

Page 19: ...ION This item adjusts the gain of the front end amplifier and its zero reference Adjustment is required during production or if the lamp brightness has drifted over time REQUIRED 1 100 Nitrogen used f...

Page 20: ...ill not be changed All Settings includes calibration To load defaults to all items press Enter appears choose All with Up or Dn and press Enter to accept A confirmation string Defaults Restored will b...

Page 21: ...of the light period For the Gain Check the cycle is two seconds long 5 2 Gain Check The front end amplifier gain check only need to be done in cases that are more exceptional 1 When the lamp has drif...

Page 22: ...ly adjust to 0000 7 Repeat as necessary preferably with the concentration between 0ppm and 50ppm Small negative concentrations are acceptable from 10ppm to 1ppm 8 Press Enter to exit disappears 9 Proc...

Page 23: ...4 After power up the unit displayed Defaults Loaded The microprocessor detected invalid parameters in the EEPROM and reverted to default settings If equipment and a calibration kit is available perfor...

Page 24: ...e between the two points Increase difference between From ppm and To ppm Signal output does not respond enough Check to Sig From and Sig To settings Decrease the difference between the two points Chan...

Page 25: ...tory for replacement block 02 Software Error Remove power for 10 seconds to reset microprocessor Please notify factory and provide the software version and revision number as well as unit serial numbe...

Page 26: ...g Screw in the two hose barbs supplied with the Duct Adapter and mount the adapter as shown NOTE Check the required direction of the airflow Error in mounting will cause dust to be forced into the sen...

Page 27: ...rations without compromising performance In the following diagrams G1 is an internal signal ground for the monitor It may or may not be common with the power supply ground G2 indicates a ground which...

Page 28: ...vision C 2008 01 03 27 Figure 8 24VDC Supply with Common Ground 3 Wire Installation Figure 9 24VDC Supply with Separate Ground 4 Wire Installation Figure 10 24VDC Ungrounded Supply 4 Wire Installation...

Page 29: ...LIABILITY All QEL systems shall be installed by a qualified technician electrician and maintained in strict accordance with data provided for individual systems in the form of installation maintenance...