3
ELECTRICAL
Photometric Formulas:
10.764·footcandles=lux (lumens/meter2)
0.0929·lux=footcandles (lumens/foot2)
Rangescale:DMM to 200.0mV range
¸10(20lux), x1(200lux)
x10(2000lux), x100(20000lux)
x1000(200000lux)
Resolution: 0.01lux
Spectral response: CIE photopic
Acceptance angle: ¦¢2<2% cosine corrected (150°)
Total accuracy for CIE standard illuminant A (2856K): ±(3%rdg + 10dgts)
The CIE photopic curve is an international standard for the color response
of the average human eye