CNR1-L

Net Radiometer

Retired Product
(not available for purchase)

The CNR1-L has been replaced by the CNR4-L.

The CNR1-L net radiometer is manufactured by Kipp & Zonen 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.

It 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. The CNR1-L also includes an RTD to measure the radiometer’s internal temperature, a 4WPB100 module to interface the RTD with the datalogger, and a heater that can be used to prevent condensation.


Features

  • Identical to the CNR1, but with a user-specified cable length
  • Measures net radiation
  • 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
  • Includes 4WPB100 100 Ohm Four-Wire PRT Bridge Module to interface the RTD to our dataloggers
  • Use 14264 bracket to mount to a vertical pipe or a UT018
  • Manufactured by Kipp & Zonen

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 μV 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
  • CE Compliance: CE compliant under the European Union’s EMC directive