11-1
Chapter 11 Troubleshooting
If this liquid level transmitter does not operate correctly or malfunctions, check the items shown below.
If the problem does not improve even after the check is performed, immediately stop operation, disconnect the
power supply, and contact Azbil or your salesperson for assistance.
Table 11-1. Troubleshooting
Symptom Check
The meter does not indicate
(or output).
y
Check that the power supply voltage is correct.
y
Check that the wiring for the power and meter is correct.
The indication (or output) of
the meter deviates.
y
Check that
l
Zero Adjustment
and
l
Adjustment of Meter
Pointer Position
(described in
Preparation Prior to Operation
(Page 7-4)
) were performed correctly.
y
Check that the rear cap on the rear panel (hole open to the air) of
the junction box is not blocked by sludge, sand, etc.
y
Check that the probe is not excessively tilted.
The indication (or output) of
the meter fluctuates.
y
Check that the damping setting is appropriate.
In addition to the above, check the following.
y
Check the self-diagnostic result that is obtained using the communicator.
(
Chapter 10 Self-diagnosis
)
y
Check the configuration (settings). (
Chapter 6 Configuration (Setting)
)
y
Check the piping connection section for leakage.
y
Check the wiring for looseness or wire breakage.
y
Check that the power supply voltage or load resistance conforms to the specifications.
y
Check that the pressure and temperature conform to the specifications.
y
Check if there is a strong magnetic field or source of electrical noise near the device.
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