Exfo AXS-100 Series OTDR Manuel d'utilisateur Page 120

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Troubleshooting
112 AXS-100 Series
Solving Common Problems
During offset nulling, you
get the following message:
“Light detected during
nulling.”
Light reaches power meter
detector.
Ensure protective caps are
tightly screwed on power
meter port and perform the
nulling again.
Do not use rubber cover.
The unit is not responding. Shut down the unit by
pressing and holding it
down.
You will hear a first beep;
release the key after you hear
a second beep.
Turn the unit on again to reset
it.
Problem Possible Cause Solution
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