Panasonic HL-D3 Series User Manual page 286

No. Error Details
Sensor information acquisition error
It occurs when acquisition of the sensor
46 information failed during "online"
connection or "measurement cycle
check".
Other error
255 It occurs due to unexpected operation
such as hardware problem of the sensor.
Cause and Action
Another possible cause is external
environment conditions such as
noise.
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Chapter 7 Troubleshooting
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