4
8. Maintain
1. The white plastic disc on the top of the detector should be cleaned with a damp cloth
when necessary.
2. Do not store the instrument where temperature or humidity is excessively high.
3. The calibration interval for the photo detector will vary according to operational
conditions, but generally the sensitivity decreases in direct proportion to the product of
luminous intensity by the operational time.
In order to maintain the basic accuracy of the instrument, periodic calibration is
recommended.
9. Recommended Illumination
LOCATIONS
Lux
FC
OFFICE
Conference, Reception room
200~750
18~70
Clerk office
700~1,500
65~140
Typing
1,000~2,000
93~186
FACTORY
Visual work at production line
300~750
28~70
Inspection work
750~1,500
70~140
Electronic parts assembly line
1,500~3,000
140~279
Packing work, Entrance passage
150~300
14~28
HOTEL
Public room, Cloakroom
100~200
9~18
Reception
200~500
18~47
Cashier
750~1,000
70~93
STORE
Indoors, Stairs ,Corridor
150~200
14~18
Display window, Packing table
750~1,500
70~140
Forefront of show window
1,500~3,000
140~279
HOSPITAL
Ward, Warehouse
100~200
9~18
Examination room
300~750
28~70
Operating room, Emergency treatment 750~1,500
70~140
SCHOOL
Auditorium, Indoor Gymnasium
100~300
9~28
Class room
200~750
18~70
Laboratory, Library, Drafting, room
500~1,500
47~140
Mini Light Meter / English
04/01/2018 Version No. 001
Manuel d'instructions
RS-92
No d'inventaire: 155-8901
Appareil Mini lumière
FR
