The CNR4 net radiometer is manufactured by Kipp & Zonen for applications requiring research-grade performance. It replaces the CNR1. 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 CNR4 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. All four sensors are calibrated to an identical sensitivity coefficient.
Features
Separate outputs of short wave and long wave infrared radiation for better accuracy and more thorough quality assurance
Ideal for research-grade solar radiation measurements
Consists of two pyranometers to measure short-wave radiation and two pyrgeometers to measure infrared radiation
Includes RTD to measure internal temperature
Compatible with the CNF4 ventilation unit with heater that reduces formation of dew and melts frost
Specifications
Spectral response: 305 to 2800 nm (pyranometer), 4500 to 42,000 nm (pyrgeometer)
Response time: <18 seconds
Typical sensitivity range: 5 to 20 µV W-1 m2
Output range: 0 to 15 mV (pyranometer), ±5 mV (pyrgeometer)
