ADS Environmental Services FlowShark QR 775003 A2 - Manual (Page 215)

8-30 ADS FlowShark IS Manual
Problem Temperature reading from the pressure depth sensor
shows a value of -273
° C (-459° F).
Possible
Causes
Cable connecting the sensor to the monitor may be
loose or broken.
Sensor may be faulty.
Analog board is not responding or may be faulty.
Possible
Solutions
Secure the sensor connection to monitor (if necessary).
Replace the sensor.
Replace the monitor if defective.
Problem Pressure depth readings are consistently incorrect.
Possible
Causes
Coefficients may be incorrect.
Pressure dryer tube may not be functioning properly.
Possible
Solutions
Retrieve or enter the correct coefficients, and reactivate
the monitor.
Inspect the color of the desiccant in the dryer tube, and
replace the tube (if necessary).
Problem Pressure depth readings are consistently off by up to 3
inches (7.62 cm), but temperature readings are
accurate.
Possible
Cause
Monitor may be configured with an incorrect pressure
sensor offset.
Possible
Solution
Enter an offset to depth for consistency with
confirmation readings.