BL-526-108 Optical Power Meter
13
7. Troubleshooting
Issue
Reason
Solution
LCD display is
dark
Low voltage
Charge or
replace battery.
Test result =
error
Sensor’s surface is
dirty.
Low voltage.
Clean sensor.
Charge or
replace battery.
No display when
meter is turned
on
The battery is under
voltage/other
reasons.
Charge or
replace battery.