The CNR1 net radiometer by Kipp & Zonen is for applications requiring research-grade performance. The radiometer measures
the energy balance between incoming short-wave and long-wave IR radiation versus surface-reflected short-wave and outgoing
long-wave IR radiation. The CNR1 consists of a pyranometer and pyrgeometer pair that faces upward and a complementary pair
that faces downward. The pyranometers and pyrgeometers measure short-wave and far infrared radiation, respectively. The CNR1
also includes an RTD to measure the radiometer’s internal temperature and a heater that can be used to prevent condensation.
CNR1 Specifications
Sensors: Kipp & Zonen’s CM3 ISO-class, thermopile pyranometer, CG3 pyrgeometer, PT100 RTD
Spectral Response
-Pyranometer: 305 to 2800 nm
-Pyrgeometer: 5000 to 50,000 nm
Response Time: 18 seconds
Sensitivity Range: 7 to 15 ?V W-1 m2
Output Range
-Pyranometer: 0 to 25 mV
-Pyrgeometer: ±5 mV
Expected Accuracy for Daily Totals: ±10%
Directional Error: <25 W m-2 (pyranometer)
Heating Resistor: 24 Ohms, 6 W at 12 Vdc
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