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Faulty connection.
Battery fitted incorrectly.
Flat battery.
Incorrect reading
Dirty optics
Check that the NC4 set-up tool is clean and free from swarf.
Check that the spring-loaded contact springs on the underside
of the tool are clean and are not damaged.
Fit the battery correctly.
Check that the correct battery is fitted.
Replace the battery.
The numerical display of the set-up tool provides an indication
only. This may differ from the reading obtained on a voltmeter
that is connected to the NCi-4 interface. The reading may also
vary when the set-up tool is swapped between the transmitter
and receiver units. This variation in voltage is not greater that
±0.2 V.
An incorrect reading is obtained when the NC set-up mode is
switched off.
Ensure that the NC4 status LED and the optical filter on the
set-up tool are clean and are not damaged.
NC4 set-up tool does not power up
Fault Rectification action
Troubleshooting
NC4 set-up tool gives incorrect reading
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