User Manual

Maintenance a n d Troubleshooting 10-45
Problem
Depth data indicates a surcharged pipe, but the pi pe i s
free flowing.
Possible
Causes
Physic al of fset may be incorrect.
Elect roni c offset may be incorrect.
Pipe height may be incorrect.
Sensor m ay be di rt y.
Sensor m ay be f aul ty.
Possible
Solutions
Verify the physical off set and the pipe hei ght.
Verify elec tronic off set and adjust i f necessary.
Clean the sens or.
Contact your regional ADS representative.
Replace the s ensor.
Replace the monitor if def ective.
Problem
Ultrasonic depth readings are erratic.
Possible
Causes
Noise m ay exist i n the sewer pipe.
Sensor m ay be di rt y.
Flow may be choppy or foamy.
Sensor m ay not be l evel .
Possible
Solutions
Check the flow conditions.
Clean the sensor.
Check if the sensor is level and correct i f necessary.
Change the power Mode in t he s ensor parameter
settings to determine whether the readings i mprove. If
the readings improve, react i vat e the monit or with t he
new setting.