18
Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
Please check the following list before requesting a repair:
Symptom
Possible Cause
Solution
(& Reference Page)
No Output
The main unit is not turned on.
Supply power to the main unit. (Page
10)
Wrong wiring of the output terminal. Provide proper wiring. (Page 10)
Probe is not connected properly.
Turn off the power. Reconnect the
probe to the main unit and turn the
power back on. (Page 6)
Contact of the terminal block is dirty.
Clean the contact of the terminal
block.
Abnormal Output Probe is not connected properly.
Turn off the power. Reconnect the
probe to the main unit and turn the
power back on. (Page 6)
The ROM number is not consistent
with the probe number.
Insert
the
correct
ROM
that
corresponds to the probe number.
(Page 7)
Probe is dirty.
Clean the probe. (Page 14)
Measured velocity is out of the
specified range.
Confirm the probe specifications.
(Page 16)
FG terminal is not connected to
ground.
Confirm that FG terminal is properly
connected to ground (earthed).
(Page 10)
Influence of noise.
Confirm the output in an environment
with less noise (e.g. outside the office
or plant). If the output there is found to
be normal, noise prevention measures
need to be taken at the measurement
location.
For details, please contact our service
center.
