RKI Instruments 65-2435RK - Manual (Page 12)

12 • 65-2435RK CO Transmitter
Performing the response test
1. Screw the regulator into the calibration cylinder. The sample will begin to flow.
2. Allow the gas to flow for two minutes, then verify that the reading is within ± 10% of the
response reading you determined earlier.
NOTE: If the reading is not within ± 10% of the correct response reading, calibrate the
transmitter as described in the Calibration section of this manual.
3. Unscrew the regulator from the calibration cylinder.
4. Unscrew the calibration cup from the CO detector.
5. Remove the voltmeter leads from the amplifier test points.
6. Reinstall the junction box cover.
7. When the controller display reading falls below the alarm setpoints, return the controller to
normal operation.
Quarterly
Calibrate the CO transmitter as described in the Calibration section of this manual.
Troubleshooting
The troubleshooting guide describes symptoms, probable causes, and recommended action for
problems you may encounter with the CO transmitter.
NOTE: This troubleshooting guide describes transmitter problems only. See the controller
instruction manual for problems you may encounter with the controller.
Fail Condition
Symptoms
• The controller indicates a fail condition.
Probable causes
• The transmitter wiring is disconnected or misconnected.
• The transmitter’s zero reading is low enough to cause a fail condition.
• The transmitter is malfunctioning.
Recommended action
• Verify that the transmitter wiring is correct and secure.
• Calibrate the transmitter.
• If the fail condition continues, replace the CO sensor.
• If the fail condition continues, contact RKI for further instruction.
Slow or No Response/Difficult or Unable to Calibrate
Symptoms
• The transmitter responds slowly or does not respond during the monthly response test.
• Unable to accurately set the zero or response reading during the calibration procedure.
• The transmitter requires frequent calibration.