RKI Instruments 65-2434RK User Manual
Page 12
8 • 65-2434RK CO Transmitter
300 PPM, the correct output is 167 mV.
167 (mV) = (50/300) X 400 +100
Performing the response test
1.
Turn the regulator’s on/off knob counterclockwise to open it. Gas will begin to flow.
2.
Hold the calibration cup against the CO sensor’s face. Leave the rubber boot and
charcoal filter on the sensor when calibrating. Hold the cup on gently to allow gas to
escape and avoid pressurizing the sensor’s sensing face.
3.
When the reading on the voltmeter stabilizes, after approximately two minutes, verify
that the reading is within ± 20% of the response reading you determined earlier.
NOTE:
If the readings are not within ± 20% of the correct response reading, calibrate the
transmitter as described in the Calibration section of this manual.
4.
Turn the regulator’s on/off knob clockwise to close it.
5.
Remove the calibration cup from the sensor face.
6.
Unscrew the regulator from the calibration cylinder, then disassemble the calibration
kit as described in the Calibration section of this insert.
7.
When the 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 insert.
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