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17
Problems
Possible Cause
Possible Solutions
Troubleshooting
Display blank
Nothing appears on
the display.
Reposition
finger to activate
the device.
Verify
battery is correctly
inserted.
Note:
If battery is
installed backwards, the unit
will not function.
Dead battery. Replace battery.
May be too cold. Allow device
to sit at room temperature for
at least 30 minutes.
If the problem persists
contact
Nonin Technical Service.