Product Description
The meter is a precise instrument for measuring visible light emitted from fluorescent lamp, metal halide lamp, high-pressure sodium lamp or incandescent lamp, LED lamp, and the like.
Illuminance is a unit of illumination intensity. It represents luminous flux per unit area in physics -- lumens per square meter (Lm/m2), also known as Lux (1 Lux = 1 Lm/m2), wherein Lm is the unit of luminous flux, and Lux is the unit of illuminance.
As for "V (λ) matching error", it is known to all that light source of different colors has different color temperature in practices, and even white light source has warm white and cold white with different color temperatures. In this way, light meter of low "V (λ) matching error" is necessary to ensure higher "accuracy" in the detection of light source of different color temperatures. Professional light meter enjoys the advantage of low-level "V (λ) matching error" and satisfies the CNS 5119 Class II standard.
I. Product Features
1. Resolution up to 0.01 Lux makes it possible for detecting dim light and weak light.
2. Low-level V (λ) matching error (ƒ'1≤6%) complies with the CNS 5119 Class II standard.
3. It has a wide measuring range of 0.01 Lux to 39990 Lux.
4. It is capable of peak holding and data retention.
Product Parameters
II. Product Specifications
1. Maximum display value: 3999
2. Measuring range: 39.99, 399.9, 3999, 39990
3. Accuracy: ± 4% + 5 (in the case of 2856K standard light source)
4. V (λ) matching error: ƒ'1≤6%
5. Maximum resolution: 0.01 Lux
6. Sensor: silicon photodiode and visual correction filter
7. Repetitive accuracy: ± 2%
8. Sampling rate: 2 times/sec
9. Operating temperature and humidity: 0ºC - 40ºC (32ºF - 104ºF)
0 - 70% RH
10. Storage temperature and humidity: -10ºC - 50ºC (14ºF - 122ºF)
0 - 80% RH
11. Working power: single 6F22 9V battery
12. Service life of battery: about 200 hours of continuous use
13. Meter size: host 160 x 78 x 43 mm
Probe φ40 x 35 mm and 1000 mm shielding extension line
14. Meter weight: about 370 g (including battery and probe)
15. Deviation characteristic of cosine angle:
30° ± 2%; 60° ± 6%; 80° ± 25%
Measuring range
39.99, 399.9, 3999, 39990
Maximum resolution
0.01 Lux
Operating temperature and humidity
0ºC - 40ºC (32ºF - 104ºF) 0 - 70% RH
Storage temperature and humidity
-10ºC - 50ºC (14ºF - 122ºF) 0 - 80% RH
Working power
single 6F22 9V battery
Service life of battery
about 200 hours of continuous use
Meter size
host 160 x 78 x 43 mm
Meter weight
about 370 g (including battery and probe)
Packaging & delivery
Package Type:
Standard export packing carton
Detailed Photos
){kind=link}
){kind=link}