RKI Instruments Beacon 200 Rig Monitor, LEL/LEL - Manual (Page 50)

45 • Beacon 200 Rig Monitor Operator’s Manual
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 LEL flame
arrestor is wet or
clogged with dirt or
other particulates.
• The detector is
malfunctioning.
• The main 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 %LEL)
is normally used for a zero adjustment
if the environment is suspect and 50%
LEL is normally used for a response
adjustment.
3. Check the LEL detector 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 9: Troubleshooting the Beacon 200 Rig Monitor (Continued)
Condition Symptom(s) Probable Causes Recommended Action