
7
1
1
1
1
1
1
TROUBLESHOOTING
No LED
The orange LED
is on.
There is no power.
The power supply voltage
is exceeding the acceptable
limits.
The sensor exceeds its
temperature limits.
Internal error
Check cable and connections.
Check the power supply voltage.
Verify the outside temperature where the sensor
is installed. Eventually protect the sensor from
sunlight using a cover.
Wait a few seconds.
If the LED remains ON, reset the power supply.
If the LED turns on again, replace the sensor.
Enable LED by command.
The orange LED
flashes 3 times.
EEPROM error
Open the cover. Keep pushing RESET button for more
than 2 seconds. Repower the sensor.
NOTES
LED is disabled.
Содержание LZR-MICROSCAN U920
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