RS Pro RS-3809 Manual Del Usuario página 5

LED Light Meter / English
• Relative Spectral (Sensitivity)
The deviation from the comparative standards for luminosity is determined by JIS
standard C 1609-1993.
Peak sensitivity wavelength : 550 nm
• Corrected LED day white light Spectrum
9. Attention
• Set for referring the testing of source of light is located at the right top end (0 degree)
of the light sensor ball plane.
Light Source o degree
• When the meter is not in use. please keep the cap of the light sensor in its place to
avoid the photo diode from wearing out.
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• When it is not in use for a long time, please take the batteries.
• Away avoid keeping it in a place of high temperature and humidity.
10. Recommended Levels of Illumination
Suitable levels of illuminace
( According to the JIS standard Z 9110-1979)
Offices, Factories
Illuminance (lux)
3000 to 1500
1500 to 750
750 to 300
300 to 150
75 to 30
Schools
Illuminance (lux)
1500 to 300
750 to 200
300 to 75
75 to 30
10 to 2
25/12/2017 Version No. 001 25/12/2017 Version No. 001
LED Light Meter / English
Place
Where such work as assembling, inspecting testing, selecting,
extremely precision Visual work
Assembling, inspecting, testing,selecting, precision visual work
Assembling, inspecting, testing, selecting and visual ordinary work
Wrapping and packing
Indoor emergency stairways
Place
Precision drawing or drafting, precision experimenting, library
Classrooms, library reading rooms, Staff room, Gymnasia
Lecture halls, assembly room corridors, locker rooms, stairways,
restrooms
Warehouses and emergency stairways
School passages
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