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MN301905 Rev A
Troubleshooting (continued)
Step Nine
MEASUREMENT STATUS
This function displays the signal strength (dB) of the echo returns and the operational status of the sensor
including diagnostic error codes.
1) From the Main Screen, press
Enter
to advance into the
Main Menu.
2)
Press
Right Arrow
repeatedly until the arrow is next to
Diagnostics.
3)
Press
Enter
to advance into Diagnostics.
4)
Press
Right Arrow
to switch to Measurement Status.
5) Measurement reliability indicates the decibel (dB) strength of
RF energy that’s reflecting back to the sensor less any
noise. For reliable function, the dB value should be ≥ 10 dB.
6)
Sensor status indicates the functional status of the sensor
(either OK or error code)
7) When done,
press
ESC
to return to the Service Menu and
press
ESC
a second time to return to the Main Screen.
SENSOR STATUS ERROR CODES
Error
Code
Problem
Solution
E11
Insufficient power
Check power supply
E12
Open circuit
Check wiring for open circuit
E14
Weak echo return (<
10dB)
Check for obstacles under the sensor, either clear the obstacle, move
the sensor or perform a False Echo Curve
E15 or
E17
ROM error
Contact your distributor
CURRENT OUTPUT CONDITIONS
Problem
Solution
Sensor output < 3.9mA
Check wiring for open circuit
Sensor output > 22mA
Check wiring for short circuit
Sensor output reaches 4mA
before the tank is empty
Check the Empty Configuration setting, and if incorrect, extend the setting to the
empty tank position
Sensor output will not reach
4mA
Check the Range setting, and if incorrect, extend the setting to or slightly below
the Empty Configuration setting
