RKI Instruments 65-2484RK - Manual (Page 27)

65-2484RK Multi Point Detector • 23
Troubleshooting
The troubleshooting guide describes symptoms, probable causes, and recommended
action for problems you may encounter with the multi-point detector.
NOTE: This troubleshooting guide describes multi-point detector problems only. See the
controller operator’s manual for problems you may encounter with the
controller.
Table 2: Troubleshooting the Multi-Point Detector
Condition Symptom(s) Probable Causes Recommended Action
Fail Condition Controller indicates a
fail condition. • The detector wiring is
disconnected or
misconnected.
• The O
2
, H
2
S, CO, or
ESM-01 plug-in sensor
is not properly plugged
into the sockets in the
detector housing body.
• The detector’s zero
reading is low enough
to cause a fail
condition.
• The detector is
malfunctioning.
1. Verify that the detector wiring is
correct and secure.
2. Confirm that the O
2
, H
2
S, CO, or
ESM-01 plug-in sensor is installed
properly.
3. Perform a zero adjustment. A full
calibration is recommended.
4. If the fail condition continues, replace
the O
2
, H
2
S, CO, or ESM-01 plug-in
sensor as described later in this
section.
5. If the fail condition continues, contact
RKI for further instruction.
Slow or No
Response/
Difficult or
Unable to
Calibrate • Detector responds
slowly or does not
respond to response
test.
• Unable to accurately
set the zero or
response reading
during calibration.
• Detector requires
frequent calibration.
Note: Under “normal”
circumstances, the
transmitter requires
calibration once every 3
months.
Some applications
may require a more
frequent calibration
schedule.
• The calibration cylinder
is low, out-dated, or
defective.
• The flame arrestor on
the LEL detector or in
the O
2
, H
2
S, or CO
detector housing cap is
wet or clogged with dirt
or other particulates.
• The calibration gas is
not an appropriate
concentration.
• The detector is
malfunctioning.
1. Verify that the calibration cylinder
contains an adequate supply of a
fresh test sample.
2. Check the LEL detector or detector
housing cap to determine if the flame
arrestor is wet or dirty. Check the
sensor face of the ESM-01 plug-in
sensor to determine if it is wet or dirty.
Clean if necessary.
3. Verify that the calibration gas
concentration is appropriate for each
detector.
4. If the calibration/response difficulties
continue, replace the LEL detector or
the O
2
, H
2
S, CO, or ESM-01 plug-in
sensor as described later in this
section.
5. If the calibration/response difficulties
continue, contact RKI for further
instruction.