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9.2 T
ECHNICAL CHARACTERISTICS OF PHOTOMETRIC AND RADIOMETRIC PROBES COMPLETE
WITH
SICRAM
MODULE EQUIPPED WITH THE INSTRUMENT
ILLUMINANCE measurement probe LP 471 PHOT complete with SICRAM module and equipped with the in-
strument
Measurement range (lux):
0.01…199.99 …1999.9 …19999 …199.99 10 3
Resolution (lux): 0.01 0.1 1 0.01 10
3
Spectral range:
in agreement with standard photopic curve V( )
α (temperature coefficient) f
6
(T): <0.05% K
Calibration uncertainty: <4%
f'1 (in agreement with photopic response V( )):
<6%
f
2
(response according to the cosine law): <3%
f
3
(linearity): <1%
f
4
(instrument reading error): <0.5%
f
5
(fatigue): <0.5%
Class: B
Drift after 1 year: <1%
Functioning temperature:
0…50 C
Reference Standard CIE No. 69 – UNI 11142
LUMINANCE measurement probe LP 471 LUM 2 complete with SICRAM module and equipped with the in-
strument
Measurement range (cd/m
2
):
0.1…1999.9 …19999 …199.99 10 3 …1999.9 10 3
Resolution (cd/m
2
): 0.1 1
0.01 10
3
0.1 10
3
Optical angle:
2
Spectral range:
in agreement with standard photopic curve V( )
α (temperature coefficient) f
6
(T): <0.05% K
Calibration uncertainty: <5%
f'1 (in agreement with photopic response V( )):
<8%
f
3
(linearity): <1%
f
4
(instrument reading error): <0.5%
f
5
(fatigue): <0.5%
Class: C
Drift after 1 year: <1%
Functioning temperature:
0…50 C
Reference Standard CIE No. 69 – UNI 11142
Typical response curve
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
380 430 480 530 580 630 680 730 780 830
Lambda (nm)
R
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