RETIRED ›
This product is no longer available and has been replaced by: CNR4-L. Some accessories, replacement parts, or services may still be available.
CNR1-L Net Radiometer

Overview

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. The CNR1-L cable length is built to order. For standard lead length of 82 ft, order CNR1.

If you need a mounting bracket for a CNR1 or CNR1-L, get advice by clicking the Ask a Question button on this page, or call 435-227-9000 and ask to speak to someone in our Flux group.

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The "-L" on a product model indicates that the cable length is specified at the time of order.

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Detailed Description

The CNR1-L has a user-specified cable length. This net radiometer is for applications requiring research-grade performance. It measures the energy balance between incoming short-wave and long-wave infrared radiation versus surface-reflected short-wave and outgoing long-wave infrared 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. All four sensors are calibrated to an identical sensitivity coefficient.

The CNR1 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.

The CNR1 uses six differential or four single-ended and two differential analog channels on the datalogger. Dataloggers that provide sufficient channels include our CR1000, CR3000, and CR5000.

If you need a mounting bracket for a CNR1 or CNR1-L, get advice by clicking the Ask an Expert button, or call 435-227-9000 and ask for someone in our Flux group.

Specifications

Sensors Kipp & Zonen’s CM3 ISO-class, thermopile pyranometer, CG3 pyrgeometer, PT100 RTD
Pyranometer Spectral Response 305 to 2800 nm
Pyrgeometer Spectral Response 5000 to 50,000 nm
Response Time 18 s
Sensitivity Range 7 to 15 μV W-1 m2
Pyranometer Output Range 0 to 25 mV
Pyrgeometer Output Range ±5 mV
Expected Accuracy for Daily Totals ±10%
Directional Error < 25 W m2 (pyranometer)
Heating Resistor 24 ohm, 6 W (at 12 Vdc)
CE Compliance CE compliant under the European Union’s EMC directive
Operating Temperature Range -40° to +70°C
Dimensions 23.2 x 8.0 x 15.6 cm (9.1 x 3.1 x 6.1 in.)
Weight 4 kg (8.8 lb)

Compatibility

Do Not use the UT018 crossarm with the 14364 mounting bracket to fasten the CNR1 to a tower leg. The 14264 mounting bracket should be attached directly to a verticle pole.

Datalogger Considerations

Datalogger Requirements: Six differential or four single-ended and two differential analog channels.

Compatible Contemporary Dataloggers

CR200(X) Series CR800/CR850 CR1000 CR3000 CR9000X

Compatible Retired Dataloggers

CR500 CR510 CR10 CR10X 21X CR23X CR9000 CR5000 CR7X

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Frequently Asked Questions

Number of FAQs related to CNR1-L: 1

  1. The CR1000 requires a 4WPB100 to measure the internal PRT. (Dataloggers such as the CR3000 and CR5000 have the necessary PRT bridge module built in to measure the PRT.) Note that the CNR4-L also includes an internal thermistor, which can be directly measured by the CR1000. Because of this, when using a CR1000, Campbell Scientific typically recommends monitoring the internal temperature of the CNR4-L using its internal thermistor instead of the PRT. 

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