User Manual

Maintenance a n d Troubleshooting 10-43
Problem
Range from ultrasonic depth subsystem is signific ant l y
greater than manually meas ured range.
Possible
Causes
Physic al of fset may be incorrect.
Pipe height may be incorrect.
Elect roni c offset may be incorrect.
Sensor may not be level.
Foam, extreme condensati on, or other subs tance may
be absorbing the pulse.
Sensor may be faulty.
Possible
Solutions
Verify the physical off set.
Verify the pi pe hei ght.
Verify elec tronic off set and adjust i f necessary.
Make sure the sensor is level and in good condition.
Check the hydrauli c conditions in the pipe.
Fire the sens or at a shorter distance onto a hard surf ace
to confi rm accuracy.
Clean/dry the sensor.
Replace the sensor.
Contact your regional ADS representative.