3. If the protective cap is not covering the sensor when the Zero
calibration is started the LCD display will read CAP. In this case, please
cover the sensor with the cap and restart this procedure.
Measurement Tips
For maximum accuracy allow the light being measured to fall directly on the
sensor as perpendicular as possible with a minimal angle of incidence.
When the meter is not in use, please keep the protective cap in place over
the light sensor. This will prolong the life of the sensor.
When the meter is to be stored for long periods, please remove the batteries
and store them separately. Batteries can leak and cause damage to the
meter’s components.
Avoid areas of high temperature and humidity when using this instrument.
Battery replacement
Turn off the instrument.
Remove the battery cover
Replace the battery.
Install the battery cover
If the symbol “ ” appears on the LCD,
please replace the battery immediately
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