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9
5. Lux unit
6. FC unit
7. Prompt for auto measurement mode
8. Prompt for peak value measurement mode
9. Prompt for low battery
10. Prompt for relative value measurement mode
11. Prompt for max and min values inquiry
2 Measurement methods
Notices prior to measurement
Warning
1: Do not use t
he light meter in environments full of dusts or
having gas substances and flammable steam substances!
2: Do not use the light meter for measurement in the place
with high temperature and high humidity.
3: Do not use the light meter in environments with intense
infrared or ultraviolet rays!
Ti
ps
1:
The opto-sensor of this meter is designed by simulating
the sensitive curve of light obtained through human eyes.
The spectral coverage is between 320mm and 730mm.
When it is used for measurement within the infrared
range, there will be a large data deviation.
2: The opto-sensor is calibrated by common electric
incandescent lamp required by CIE under the color
temperature of 2854°K; the provided reading number
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