RKI Instruments 61-0191RK - Manual (Page 13)

61-1004RK/61-0191RK Carbon Dioxide Detector • 9
NOTE: If the reading is not within ± 20% of the gas concentration, calibrate the detector
as described in “Calibration” on page 11.
9. Turn the on/off knob clockwise to close the regulator.
10. Unscrew the regulator from the calibration cylinder and remove the sample tubing
from the regulator.
11. Unscrew the calibration cup from the detector. You may leave the sample tubing
connected to the calibration cup for convenience.
12. When the display reading falls below the alarm setpoints, return the controller to
normal operation or enable external alarms.
13. Store the components of the calibration kit in a safe place.
Biannually
Calibrate the CO
2
detector every six months as described in “Calibration” on page 11.
Troubleshooting
The troubleshooting guide describes symptoms, probable causes, and recommended
action for problems you may encounter with the CO
2
detector.
NOTE: This troubleshooting guide describes detector problems only. See the controller
operator’s manual for problems you may encounter with the controller.
Table 3:Troubleshooting the CO
2
Detector
Condition Symptom(s) Probable Causes Recommended Action
Fail Condition • Controller indicates a
fail condition.
• The detector wiring is
disconnected or
misconnected.
• The detector zero
signal is low enough to
cause a fail condition.
• The detector is
malfunctioning.
1. Verify that the detector wiring is
correct and secure.
2. Calibrate the detector.
3. If the fail condition continues, replace
the detector.
4. 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
detector requires
calibration once every
six months.
Some applications may
require a more frequent
calibration schedule.
• The calibration cylinder
is low, out-dated, or
defective.
• The regulator flow rate
is not 0.5 LPM.
• The detector is
malfunctioning.
1. Verify that the calibration cylinder
contains an adequate supply of a
fresh test sample.
2. Confirm that the regulator being used
is a 0.5 LPM regulator.
3. If the calibration/response difficulties
continue, replace the detector.
4. If the calibration/response difficulties
continue, contact RKI for further
instruction.