Kippzonen CNR 4 Net Radiometers User Manual download pdf (Page 20)

Irradiance:

W/m²

0 to 2000

Definition

Measurement range

Non-stability

< 1

Definition

Maximum change of sensitivity per year, percentage of full scale

Spectral selectivity

< 3% (350 – 1500 nm spectral interval)

Definition

Deviation of the product of spectral absorption and spectral

transmittance from the corresponding mean within the indicated

spectral range

Uncertainty in daily total

< 5 (95 % confidence level)

Definition

Achievable uncertainty

International standards

WMO

ISO

Good quality

First Class

Instrument calibration

Indoors, side by side against reference CMP 3 pyranometer

according to ISO 9847:1992 annex A.3.1

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Kippzonen CNR 4 Net Radiometers User Manual Page 20