Campbell Scientific Kipp and Zonen CMP-Series Pyranometers - Manual (Page 26)

CMP/CMA series manual
Page 25
6.5. CMP / CMA series performance specifications
Specification Unit CMP 6/ CMA 6 CMP 11 / CMA 11 CMP 21 CMP 22 Definition
Spectral range µm 310 - 2800 310 - 2800 310 - 2800 200 - 3600 50 % response point
Sensitivity µV/W/m² 5 to 18 7 to 14 7 to 14 7 to 14 Signal output for 1 W/m² irradiance
Impedance Ω 20 to 200 10 to 100 10 to 100 10 to 100 At instrument housing connector
< 18 < 5 < 5 < 5 95% of final value
< 6 < 1.7 < 1.7 < 1.7 63 % of final value
Non-linearity % < 1 < 0.2 < 0.2 < 0.2 From 0 to 1000 W/m² irradiance
Tilt error % < 1 < 0.2 < 0.2 < 0.2 Deviation when facing downwards
Zero offset A W/m² < 15 < 7 < 7 < 3 At 0 to - 200 W/m² of IR net radiation
Zero offset B W/m² < 4 < 2 < 2 < 1 At 5 K/h temperature change rate
Operating temperature °C -40 to +80 -40 to +80 -40 to +80 -40 to +80 Storage temperature is the same
Field of view 180º 180º 180º 180º Hemispherical
Directional error W/m 2 < 20 < 10 < 10 < 5 At 80° with 1000 W/m² irradiance
Maximum irradiance W/m 2 2000 4000 4000 4000 Level above which damage may occur
Non-stability % < 1 < 0.5 < 0.5 < 0.5 Variation in sensitivity per year
Humidity % RH 0 - 100 0 - 100 0 - 100 0 - 100 Relative Humidity
Uncertainty in daily total % < 5 < 2 < 2 < 1 95 % confidence level
Temperature dependence of
sensitivity
%
Response time s
Variation in range - 10 °C to + 40 °C
from value at + 20 °C
*(- 20 °C to + 50 °C)
< 4 < 1 < 1* < 0.5*