TASI-630 Digital Light Meter Luxmeter LCD Backlight PEAK-HOLD 50mS
Display: 3-½ digit liquid crystal display (LCD) with maximum
reading of 1999.
Overrange: "OL" is displayed.
Low battery indication: The “+ -” is displayed when the battery voltage drops below the
Measurement rate: 2.5 times per second, nominal.
Operating Environment: 0°C to 50°C (32°F to 122°F) at < 70% R.H.
Storage Temperature: -20°C to 60°C (-4°F to 140°F), 0 to 80% R.H. with battery removed
Accuracy: Stated accuracy at 23°C ± 5°C (73°F ± 9°F), <70% R.H.
Battery: Standard 9V battery (NEDA 1604, IEC 6F22 006P).
Battery Life: 200 hours typical with carbon zinc battery.
Dimensions: 190mm x 65.5mm x 35mm
Weight: Approx.210g including battery.
Photometric Formulas: 10.764 footcandles=lux (lumens/meter2) ; 0.0929lux=footcandles(lumens/foot2)
Range: 20lux, 200lux, 2000lux, 20klux
20fc, 200fc, 2000fc, 20kfc
Resolution: 0.01lux, 0.01fc
Spectral response: CIE photopic (The CIE photopic curve is an international standard
for the color response of the average human eye. )
Acceptance angle: ƒ′2<3% cosine corrected (150°)
Total accuracy for CIE standard illuminant A (2856K): ±(3%rdg + 10dgts)
CIE standard illuminant A can be realized by means of CIE standard
source A, which is defined as: A gas-filled tungsten-filament lamp
operating at a corre-lated color temperature of 2856K.
Temperature Coefficient: 0.1 x (specified accuracy)/°C (<18°C or >28°C), 0.056 x
(specified accuracy)/°F (<64.4°F or >82.4°F)
Peak Hold response time: >50mS pulse light.