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The white protective cap on the photo sensor should be wiped with a damp cloth from
time to time.
2. the light meter must not be stored at too high a temperature or humidity.
The period of time required for a calibration of the photo sensor varies with the working
operations. In general, the light sensitivity decreases directly proportional to the
product of the light intensity of the working time.
To maintain the general accuracy of the instrument, periodic calibration is
recommended.
9 Examples of recommended illuminance levels
Office
Conference/reception room
Office work
Masch. writing, technical drawing
School
Lecture hall, gymnasium
Classroom
Laboratory, library, drawing room
Hospital
Hospital room, storage
Room for medical examinations
Operating room
Emergency room
Factory
Packing work, goods receipt
Work on the assembly line
Visual inspection work
Assembly of electronic parts
Hotel
lounge, cloakroom
Reception, cashier
retail shop
Entrance stairs range
Shop windows, packing tables
Front part of the shop window
6
200-750
700-1500
1000-2000
100-300
200-750
500-1500
100-200
300-750
750-1500
750-1500
150-300
750-1500
1500-3000
100-200
220-1000
150-200
750-1500
1500-3000
300-750
SO-BA-e-2020
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