14 • 65-2340RK Toxic Gas Transmitter
Maintenance
This section describes maintenance procedures. It includes preventive maintenance,
troubleshooting, and component replacement procedures.
Preventive Maintenance
This section describes a preventive maintenance schedule to ensure the optimum performance
of the toxic gas transmitter. It includes daily and quarterly procedures.
Daily
Verify a display reading of 0 ppm at the controller. Investigate significant changes in the
display reading.
Quarterly
Calibrate the toxic gas transmitter as described in “Calibration” on page 18 of this manual.
Troubleshooting
The troubleshooting guide describes symptoms, probable causes, and recommended action for
problems you may encounter with the toxic gas transmitter.
NOTE:
This troubleshooting guide describes transmitter problems only. See the controller
operator’s manual for problems you may encounter with the controller.
Table 2: Troubleshooting the Toxic Gas Transmitter
Condition
Symptom(s)
Probable Causes
Recommended Action
Fail
Condition
• Controller indicates
a fail condition.
• The transmitter wiring
is disconnected or
misconnected.
• The plug-in sensor is
not properly plugged
into the socket in the
detector housing body.
• The transmitter’s zero
reading is low enough
to cause a fail
condition.
• The transmitter is
malfunctioning.
1. Verify that the transmitter wiring is
correct and secure.
2. Confirm that the plug-in sensor is
installed properly.
3. Perform a zero (fresh air) adjustment.
A full calibration is recommended.
4. If the fail condition continues,
replace the plug-in sensor as
described later in this section.
5. If the fail condition continues,
contact RKI for further instruction.
