ADS Environmental Services FlowShark QR 775002 A4 - Manual (Page 238)

10-26 ADS FlowShark Manual
Problem Temperature reading from the pressure depth sensor
shows a value of -273
° C (-459° F).
Possible
Causes
Cable connecting the pressure sensor to the monitor
may be loose or broken.
Pressure sensor may be faulty.
Analog board is not responding or may be faulty.
Possible
Solutions
Secure pressure sensor connection to monitor (if
necessary).
Replace the pressure 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 color of desiccant in dry tube and replace the
dryer tube or desiccant (if necessary).
Problem Pressure depth readings are consistently off by up to 3
inches, but temperature readings are accurate.
Possible
Cause
Monitor may be configured with an incorrect pressure
sensor offset.
Possible
Solution
Re-measure pressure sensor physical offset and enter
correct value in Profile. Reactivate the monitor.
Enable Auto-Pressure Calibration feature in Profile to
calibrate the pressure sensor data to the ultrasonic data
during non-surcharge conditions.