- ページ 12

計測機器 Amprobe LM631AのPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。Amprobe LM631A 14 ページ。 Digital light meter

ELECTRICAL

Accuracy: at 23°C ± 5°C (73°F ± 9°F), < 75 % relative humidity

Ranges: 20 lux, 200 lux, 2000 lux, 20000 lux

20 fc, 200 fc, 2000 fc, 20000 fc

Total accuracy for CIE standard illuminant A (2856K):

± ( 3 % rdg + 10 dgts)

Temperature Coefficient: 0.1x (specified accuracy)/°C (< 18°C or >28 °C),

0.056 x(specified accuracy)/°F (< 64.4°F or > 82.4°F)

Resolution: 0.01lux; 0.01fc

Spectral response: CIE photopic – CIE standard illuminant A

Acceptance angle: ƒ '

< 2 %; cosine corrected (150°)

Peak Hold response time: >50mS pulse light.

Analog output: 1 mV = 1 lux or 10 mV = 1 fc , nominal, continuous

output

The CIE photopic curve is an international standard for the color

response of the average human eye. CIE standard illuminant A

is defined as: A gas- filled tungsten-filament lamp operating at a

correlated color temperature of 2856K.