ATP Instrumentation 1309, Инструкция

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tip of the photo detector globe.
4. 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.
Ⅸ
RECOMMENDED ILLUMINATION
1FC=10.76Lux
LOCATIONS Lux FC
OFFICE Conference,
Reception room
200~750 18~70
Clerical work 700~1,500 65~140
Typing drafting 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