RKI Instruments 35-3010RK-07 User Manual
Page 19
35-3010RK-07 Sample-Draw Detector • 15
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 wiring is correct and secure. “Wiring the Sample Draw
Detector” on page 9 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
channels as described later in this section.
6.
If the fail condition continues, contact RKI Instruments, Inc. for further instruction.
Slow or No Response/Difficult or Unable to Calibrate
Symptoms
•
One or more of the sensors respond slowly or do not respond during the monthly
response test.
•
Unable to accurately set the zero or response reading on one or more of the channels
during the calibration procedure.
•
One or more of the sensors requires frequent calibration.
NOTE:
Under “normal” circumstances, the sample draw detector requires calibration
once a quarter. Some applications may require a more frequent calibration
schedule.
Probable Causes
•
The calibration cylinder is low, out-dated, or defective.
•
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.
Recommended Action
1.
Verify that the calibration cylinder contains an adequate supply of a fresh test sample.
2.
If necessary, set the correct flow rate with the bypass valve or flow adjust
potentiometer.
3.
If you cannot set the correct flow rate, check the sample line for obstructions or kinks.
4.
If the calibration/response difficulties continue, replace the sensor as described later
in this section.
5.
If the calibration/response difficulties continue, contact RKI Instruments, Inc. for
further instruction.