User Manual

65-2516RK Oxygen T r a ns mitte r • 9
voltmeter decreased from the normal reading (434 mV).
NOTE: If the reading does not decrease, calibrate the transmitter as described in
“C alibration” on p age 13 of this ma nual.
3. Remove the voltmeter leads from the amplifier test points, then secure the junction
box cover to the junction box.
4. When the display reading rises above the decreasing alarm setpoint, return the
controller to normal operation.
Quarterly
Calibrate the detector as described in “Calibration” on page 13. See the calibration
frequency discussion in the calibration section to determi ne if a quarterly calibration
schedule fits your need s.
Troubleshooting
The troubleshooting guide describes symptoms, probable causes, and recommended
action for problems you may encounter with the oxygen transmitter.
NOTE: This troubleshooting gui d e describes transmitter problems only. See the
controller ope r ator’s manual for problems you may en c ounter with the
controller.
Table 2:Troubleshooting the Oxygen Transmitter
Condition Symptom(s) Probable Causes Recommended Action
Fail Condition • Controller indicates a
fail condition.
• The transmitter wiring
is disconnected or
misconnected.
• The transmitter is
malfunctioning.
1. Verify that the transmitter wiring is
correct and secure.
2. C al ib rate the transm itter.
3. If the fail condition continues, replace
the oxygen sensor.
4. If the fail condition continues, contact
RKI for further instruction.
Slow or No
Response/
Difficult or
Unable to
Calibrate
• Transmitter responds
slowly or does not
respond to response
test.
• Unable to accurately
set the fresh air or
zero reading during
calibration.
• Transmitter requires
frequent cal ib r ati on.
Note: Under “normal”
circumstances, the
transmitter requ ire s
calibration once every
three months .
Some applications may
require a more freque nt
calibration schedule.
• The calibration cylinder
is low, out-dated, or
defective.
• The flame arrestor in
the detector housing
cap is wet or clogged
with dir t or other
particulates.
• The transmitter is
malfunctioning.
1. Verify that the calibration cylinder
contains an adequate supply of a
fresh test sample.
2. Check the detector housing cap to
determine if the flame arrestor is wet
or dirty. Clean or replace if necessary.
3. If the calibration/response difficulties
continue, replace the oxygen sensor.
4. If the calibration/response difficulties
continue, contact RKI for further
instructions.