Portable Luxmeter 3286A （已停产）

注意: 该产品已于 2010年1月14日停产。查看该替代产品

数字照度计 51011/51012/51021

For measuring the low intensities of illumination from 0 to 300 lx in 5 ranges.
Cosine and color corrected
Output to recorder (Standard)
Taut-band suspension type indicator
Standard carrying case and pocket light

Details

Details

Model	High-Sensitivity
Measuring Range	0 to 10 lx 0 to 100 lx 0 to 3 lx 0 to 30 lx 0 to 300 lx
Accuracy	± 7% of reader (23°C ± 2°C)
Photocell	Selenium cell with plastic molding
Approx. Photocell Lead Length	1.4 m 4.6 ft
Color Correction	By color-correcting filter.
Output	1V ± 5%, output resistance less than 1Ω.
Indicator	Taut band suspension type with a mirror scale
Power Source	One 9V dry cell (6F22) built in.
Operating Temperature Range	-10 to 40 ºC 14 to 104 ºF
Humidity Range	85% or less
Aprrox. Dimensions (Carrying Case)	6 1/8 x 6 1/8 x 3 3/8 in 160 x 160 x 92 mm
Aprrox. Weight	1.1 kg 2.4 lb
Accessories Supplied at No Extra Cost	Carrying case 1pc, pocket light 1 pc.
Applicable Standard	Designed based on JISC 1609-1993 CLASS A
Cosine Correction	Angular errors of light incidences are corrected by the globe covered on photocell (with spectral transmission characteristics) Angle of incidences 10° within ± 1.5%. 30° within ±3%. 60° within ± 10%. 80° within ±30%
Operating Principle	When irradiated, the selenium photocell generates a potential differences, and the photocurrent is read on the DC ammeter which is calibrated in lx. Color-correcting filters The spectral responses is different from that of human eye. Therefore, color -correcting filter(s) are use with photocel. The color sensitivity of photocell is nearer to the standard luminosity curve (average human eye distribution curve). Cosine correction globe The photocell response to light varies with the angel of incidence (so-called cosine law) due to the reflection from the surface of the cell. Angular errors are corrected using cosine correction globe with the photocell.

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