Chauvin Arnoux C.A 811 Notice De Fonctionnement page 10

Measurement range:
- C.A 811 20 lux, 200 lux, 2000 lux, 20 klux
20 fc, 200 fc, 2000 fc, 20 kfc
- C.A 813: 20 lux, 200 lux, 2000 lux, 20 klux, 200 klux
20 fc, 200 fc, 2000 fc, 20 kfc
Resolution: 0.01 lux - 0.01 fc
Accuracy of the C.A. 811 (at 23°C ±5°C, < 75% RH)
- Spectral response: IEC Photopic (see curve below)
- Spectral accuracy: f '
- Cosinusoidal response: f '
- Total accuracy for
normal light sources: ±18% +2 pt
- Intrinsic error (for a standard light source) (2856 K): ±3%
+10 pt
Accuracy of the C.A. 813 (at 23°C ±5%, < 75% RH)
- Spectral response: IEC Photopic (see curve below)
- Spectral accuracy: f '
- Cosinusoidal response: f '
- Total accuracy for normal light sources: ±11% +2 pt
- Intrinsic error (for a standard light source) (2856 K):
±3% +10 pt
120
100
80
60
40
20
0
420 450 480 510 540 570 600 630 660 690
Sensors: Silicon photodiode
Climatic environment
- Utilisation: 0 to +50°C <75% RH
- Storage: -20°C to +60°C, 0 to 80% RH, without battery
Power supply: 9 V battery (type 6LR61 or 6LF22)
Dimensions / Weight: 173 x 60.5 x 38 mm / 190 g with
batteries
Electromagnetic compatibility
Emission as per EN 50081- Ed.. 1992
Emission as per EN 50082- Ed. 1992
Impermeability: IP 44 as per IEC 60529 (Ed. 89), the ins-
trument must be in its protective case.
4. SPECIFICATIONS
< 15%
1
2
< 8%
1
2
Relative sensitivity (%) vs wavelength (nm)
< 2%
< 2%
10