HD50
- 42 -
V1.5
Illuminance
Sensor
Photodiode
Measuring range
I
: 0…20,000 lux
I2
: 0…200,000 lux
Resolution (of the instrument)
I
: 1 lux (0…2,000 lux), 10 lux (>2,000 lux)
I2
: 10 lux (0…20,000 lux), 100 lux (>20,000 lux)
Spectral range
In accordance with standard photopic curve V(
λ
)
α (temperature coefficient) f
6
(T)
<0.05% K
Calibration uncertainty
<4%
f'
1
(accordance with photopic response
V(
λ
))
<6%
f
2
(response as cosine law)
<3%
f
3
(linearity)
<1%
f
4
(instrument reading error)
<0.5%
f
5
(fatigue)
<0.5%
Class
B
One year drift
<1%
Operating temperature
0…50
°
C
Reference standard
CIE n°69 – UNI 11142
Relative spectral response of the illuminance sensor:
Wavelength (nm)
R
e
la
ti
v
e
s
p
e
c
tr
a
l
re
s
p
o
n
s
e
(
%
)
Содержание Delta OHM HD50 Series
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