RKI Instruments M2 Rig Monitor - Manual (Page 32)

27 M2 Rig Monitor Operator’s Manual
Strobe/
Horn Not
Working • The strobe/horn
does not activate
when an alarm 1
condition occurs.
• The strobe/horn is
malfunctioning.
• The strobe/horn
wiring is
disconnected or
misconnected.
1. Verify that the strobe/horn is
wired properly to the alarm
terminal strip.
2. If the strobe/horn difficulties
continue, contact RKI for further
instruction.
Fail
Condition • Rig Monitor
indicates a fail
condition.
• The detector wiring
to the terminal PCB
is disconnected or
misconnected.
• The plug-in H
2
S
sensor is not
properly plugged
into the sockets in
the detector
housing body.
• The detector fresh
air signal is low
enough to cause a
fail condition.
• The detector is
malfunctioning.
• The terminal or
display PCB is
malfunctioning.
1. Verify that the detector wiring is
correct and secure.
2. Confirm that the plug-in H
2
S
sensor is installed properly.
3. Calibrate the Rig Monitor.
4. If the fail condition continues,
replace the detector.
5. If the fail condition continues,
contact RKI for further
instruction.
Slow or No
Response/
Difficult or
Unable to
Calibrate • Rig Monitor
responds slowly
or does not
respond to
response test.
• Unable to
successfully set
the fresh air or
span reading
during
calibration.
• Rig Monitor
requires frequent
calibration.
Note: Under “normal”
circumstances, the
detector 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
in the detector
housing cap is wet
or clogged with dirt
or other
particulates.
• The detector is
malfunctioning.
• The terminal PCB is
malfunctioning.
1. Verify that the calibration cylinder
contains an adequate supply of a
fresh test sample.
2. Verify that the calibration gas
concentration is appropriate for
the detector. Zero emission air (0
ppm H
2
S) is normally used for a
zero adjustment if the
environment is suspect and 25
PPM H
2
S in nitrogen is normally
used for a response adjustment.
3. Check the detector housing cap to
determine if the flame arrestor is
wet or dirty. Clean if necessary.
4. If the calibration/response
difficulties continue, replace the
detector.
5. If the calibration/response
difficulties continue, contact RKI
for further instruction.
Table 5:Troubleshooting the M2 Rig Monitor
Condition Symptom(s) Probable Causes Recommended Action