Measurement probe LP 471ERY of EFFECTIVE TOTAL IRRADIANCE (W/m
2
) according
to the UV action curve UV (CEI EN 60335-2-27) complete with SICRAM module, equipped
with the instrument
Measurement range (W
eff
/m
2
):
0.1
⋅
10
-3
… 999.9
⋅
10
-3
1.000…19.999 20.00…199.99 200.0…1999.9
Resolution (W
eff
/m
2
):
0.1
⋅
10
-3
0.001 0.01 0.1
Spectral range:
UV action curve for erythema measurement (250nm…400nm)
Calibration uncertainty:
<15%
f
3
(linearity):
<3%
f
4
(instrument reading error
±
1digit
f
5
(fatigue):
<0.5%
Drift after 1 year
<2%
Working temperature:
0…50
°
C
Reference standard
CEI EN 60335-2-27
Typical response curve
0,00001
0,0001
0,001
0,01
0,1
1
10
250
270
290
310
330
350
370
390
λ
(nm)
Rel
a
tive Spec
tr
al
Respons
e
Continuous Line = UV action curve
Dotted Line =Probe Spectral sensitivity LP471 ERY
The probe LP 9021 ERY measures the effective total irradiance (W/m
2
eff
) according to the UV
action curve (CEI EN 60335-2-27). A particular type of photodiode and a combination of special
filters bring the spectral response closer to the UV action curve.
CEI EN 60335-2-27 standards establish a maximum allowable dose of 100J/m
2
for first-time
exposure and an annual dose of 15000J/m
2
.
The typical spectral response curve of LP 9021 ERY is shown in the Figure together with the UV
action curve.
The good accordance between the two curves enables the instrument to take reliable measurements
of different types of lamps (and filters) used at present for tuning machines.
Each probe is individually calibrated at DeltaOhm photo-radiometry laboratory by means of a
double monochrome.
Calibration is performed at 290 nm through a SIT calibrated reference
photodiode.
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33
Summary of Contents for HD2102.1
Page 2: ...Photo Radiometer HD2102 1 2...
