Kipp&Zonen BSRN Scientific Solar Monitoring System - Manual (Page 114)

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Linearity ±5% from 0 to 1400 W m -2
Response tim e 1 second (1/e signal)
Mechanical vibration tested up to 20 g’s without dam age
Calibration reference Eppley prim ary standard group of pyrheliom eters
Size 11 inches long
W eight 5 pounds
B 3.4 Kipp and Zonen Delft BV CH1
T he pyrheliom eter CH1 is designed to m easure direct solar irradiance at norm al incidence. Its m ain
characteristics are:
Built in accordance with ISO 9060 specifications for first class pyrheliom eter
Slope and opening angle according to W MO recom m endations
Equipped with an easily serviceable drying cartridge
Suitable for continuous outdoor use
According to clients’ specifications: (optional) internal filter, sensor tem perature m easurem ent,
extended cable and connector
Specifications
Response tim e 95% 7 s
99% 10 s
Zero offset: Caused by 5 K/H
change in am bient tem perature
± 3 W m -2
Non-stability < ± 1 % per year
Non-linearity ± 0.2 % (< 1000 W /m )
Spectral selectivity within
0.35 to 1.5 :m .
± 0.5 %
Tem perature response (%) ± 1 %, -20 to +50
deviation due to am bient
tem perature(relative to 20 °C)
± 1.5 %, -40 to +70
Tilt response None
Traceability To W RR
Sensitivity 7-15 :V W m -1 2
Spectral range 0.2 to 4 :m , 50 % points
Im pedance 50-70 S.
Irradiance 0-4000 W m -2
Operating tem perature -30 to +60 °C