ADS Environmental Services IETG FlowHawk QR 775012 A4 - Manual (Page 333)

Maintenance and Troubleshooting 8-49
Problem Range from the ultrasonic depth subsystem is too short
(but not zero).
Possible
Causes
Pipe height may be incorrect.
Electronic offset may be incorrect.
CS3 depth sensor may be dirty.
CS3 depth sensor may be faulty.
Possible
Solutions
Verify the pipe height.
Verify electronic offset and adjust if necessary.
Clean the sensor.
Replace the sensor.
Contact your regional IETG representative.
Problem Raw ultrasonic depth data shows depths greater than
the pipe diameter.
Possible
Causes
Physical offset may be incorrect.
Pipe height may be incorrect.
Electronic offset may be incorrect.
Pipe may be surcharged.
Sensor may be dirty.
Sensor may be faulty.
Possible
Solutions
Verify the physical offset.
Verify the pipe height.
Verify electronic offset and adjust if necessary.
Clean the sensor.
Replace the sensor.
Contact your regional IETG representative.