Dear Valued Customer,
Please follow the below outlined steps to calibrate your CO Monitor.
I have also see the PDF File attached to this message which describes the CO Monitor in more detail as well as giving further details which may help you troubleshoot.
So here are the steps I would like you to go through:
Calibrating Carbon Monoxide Monitor.
1. Before calibration, be sure that the test gas bottles in the calibration kit have an adequate amount of gas in the them. Attach the fixed flow regulator to the gas bottle and then detach it. You should hear
a slight popping sound.
2. Turn on the compressor unit. The compressor itself does not have to run, because the test gas is being substituted for the air supply from the compressor.
3. The compressor unit power needs to be applied to the unit for 15 minutes so the unit can stabilize. If you attempt to calibrate before the end of this 15 minute period, TO SOON will appear on the LCD Display.
4. Lift the cap of the Inlet Regulator and turn counterclockwise until it stops. This will insure that the air flow from the compressor unit is shut off.
5. If the gas flow from the compressor unit was not shut off, a message SUPPLY OFF will appear. If this message appears, shut off the supply air and then begin the alibration process again.
6. Connect the 20 ppm CO Test Gas to the fixed flow regulator and connect it to the Calibration Port of the CO Monitor.
7. Turn the value on the Fixed Flow Regulator counterclockwise until the CO Monitor Flow Indicator shows between 0.5 and 0.8 SCFH.
8. The Display will count down from 60 seconds. At the conclusion, the display will prompt CO G SET or CAL FAILED
9. The the display will prompt REMOVE CO GAS.
10. Turn the valve on the Fixed Flow Regulator clockwise until it is closed and disconnect it from the Calibration Port and disconnect the 20 ppm CO Test Gas bottle from the fixed flow regulator.
11. Allow 10 minutes for the remaining gas in the CO Sensor Cell to dissipate after the calibration process. If the compressor is started before the test gas dissipates, it could lead to incorrect CO level readings.
Calibration is recommended every thirty(30) days.
12. Turn the compressor on - compressor must be running, then adjust the Inlet Regulator to 0.5-0.8 SCFH to restore normal operations.
Troubleshooting a Calibration Failure
If the unit fails to calibrate, it maybe due to low pressure in Test Gas Bottles, mixing up the Test Gas Bottles during calibration or an aging CO Sensor Cell.
1. Ensure the Test Gas supply is adequate. To do so please attach the fixed flow regulator to the gas bottle and then detach it. You should hear a slight popping sound.
2. Initialize the CO Monitor following the procedures outlined above (Step 1-12)
3. If the Test Gas is good and the CO Monitor still refuses to calibrate, replace the CO Sensor Cell. See Paragraph 1.4.3.
4. If it still does not calibrate, please contact us at +1 (844)-500-5822 or via email at
We hope this helped you resolve your problem.
Thank you for contacting Bauer Customer Support!