RKI Instruments 35-3010RKA-04 User Manual
Page 20
16 • 35-3010RKA-04 Sample-Draw Detector
the zero reading as described in “Start Up” on page 14, then continue this procedure.
2.
Assemble the calibration kit as described in the Calibration section. Use of a 3-gas
cylinder is recommended so that all channels may be checked at once.
Performing the response test
NOTE:
This procedure describes the RKI calibration kit that includes a demand flow
regulator.
1.
Screw the regulator into the calibration cylinder.
2.
Connect the calibration tubing from the regulator to the inlet line at or near the INLET
fitting. Gas will begin to flow.
3.
After approximately one minute, verify that the reading for each channel at the
monitoring device stabilizes within ± 10% of the concentration of the test sample. If
the reading is not within ± 10% of the test sample, calibrate the sample-draw detector
as described in the Calibration section of this manual.
4.
Remove the calibration tubing from the inlet line, then reconnect the inlet line.
Quarterly
Calibrate the sample-draw detector as described in the Calibration section.
Troubleshooting
The troubleshooting guide describes symptoms, probable causes, and recommended
action for problems you may encounter with the sample-draw gas detector.
NOTE:
This troubleshooting guide describes sample-draw detector problems only. See
the instruction manual for the controller if it exhibits any problems.
Fail Condition
Symptoms
•
The sample-draw detector’s Fail light is on.
•
The controller is operating properly but indicates a reading well below zero on one or
more channels.
Probable Causes
•
The sample-draw detector’s flow rate is too low because of an obstructed sample line,
failed pump, etc.
•
The sample-draw detector is malfunctioning.
•
The sensor or transmitter wiring is disconnected or misconnected.
Recommended Action
1.
At the sample-draw detector, set the correct flow rate with the bypass valve or flow
adjust potentiometer.
2.
If you cannot set the correct flow rate, check the sample lines for obstructions or kinks.
3.
Verify that the sensor and transmitter wiring are correct and secure. “Installation” on
page 10 describes detector wiring connections.
4.
Calibrate the problem channel or channels as described in the Calibration section.
5.
If the fail condition continues, replace the sensor from the problem channel or