ADS 507165, Инструкция по установке, эксплуатации и обслуживанию, Страница: 452 / 535

11-54 ADS Manual
Problem
Depth measured remains a constant value.
Possible
Causes
Sensor may be positioned incorrectly over invert and/or
incorrectly reading a stationary object (rung, bench, etc.)
in the manhole structure.
Sensor level is incorrect and not measuring invert depth.
Possible
Solutions
Reposition the Mounting Bar so sensor is directly over
the invert.
Neatly coil all cables and/or relocate
monitor.
Verify the sensor and Mounting Bar are level, and adjust
if necessary.
Problem Depth readings are erratic.
Possible
Causes
Debris is in front of sensor.
Mounting Bar has become dislodged.
Sensor cables are in front of sensor.
Sensor is attempting to measure depths beyond
specifications.
Sensor may be submerged.
Possible
Solutions
Clear any debris that may have accumulated on or
under the sensor.
Inspect the Mounting Bar to ensure installation is
secure.
Neatly coil sensor cables and secure them to the
manhole rung or wall.
Verify the sensor and Mounting Bar are level, and adjust
if necessary.
Wait for water level to recede and verify sensor readings
return to normal.