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Troubleshooting
Problems
Display blank
Missing segments
on LCD display.
17
Possible Cause
Battery.
Device may be too cold
to operate.
Faulty display.
Possible Solution
Verify battery is correctly
inserted. Note: If battery is
installed backwards, the unit
will not function.
Dead battery. Replace battery.
If the problem
persists,
the battery and contact Nonin
Technical Service.
Allow device to sit at room
temperature for at least
10 minutes.
Contact Nonin Technical
Service.
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