User Manual

16
5. TECHNICAL CHARACTERISTICS
5.1. REFERENCE CONDITIONS
Quantity of inuence Reference values
Temperature 23 ± 2°C
Relative humidity 45% to 75%
Supply voltage 3 to 4.5V
Light source illuminant A
Electric eld < 1V/m
Magnetic eld < 40A/m
The intrinsic uncertainty is the error specied for the reference conditions.
5.2. OPTICAL CHARACTERISTICS
The illumination sensor is a silicon (Si) photodiode of which the spectral response is corrected by an optical lter. The directional
response is ensured by a diffusing lens.
The C.A 1110 is a class C lux meter per standard NF C-42-710.
5.2.1. ILLUMINATION MEASUREMENTS
Specied measure-
ment range
0.1 to 200,000lx 0.01 to 18,580fc
Resolution
0.1 to
999.9lx
1.000 to
9.999 klx
10.00 to
99.99 klx
100.0 to
200.0 klx
0.01 to
99.99fc
100.0 to
999.9fc
1.000 to
9.999kfc
10.00 to
18.58kfc
0.1lx 1lx 10lx 100lx 0.01fc 0.1fc 1fc 10fc
Intrinsic uncertainty
on the illumination
measurement
3% of reading
Intrinsic uncertainty
on the spectral re-
sponse with respect
to V(l)
f
1
’ < 20%
Directional sensitivity f
2
< 1,5%
Intrinsic uncertainty
on the linearity
f
3
< 0,5%
5.2.2. OTHER
Sensitivity to UV u<0.05% (class A)
Sensitivity to IR r<0.005% (class A)
Directional response f
2
<1.5% (class B)
F
2
<3% (class C)
Fatigue, memory effect f
5
+f
12
<0.5% (class A)
Inuence of temperature f
6
=0.05%/°C (class A)
Response to modulated light f
7
(100 Hz)=Inuence negligible
Response to polarization f
8
(e)=0.3 %
Response time 1s