240-110 NR-Lite Net Radiometer

The Model 240-110 NR-Lite Net Radiometer is designed for routine measurement of net radiation which is the balance between incoming and outgoing radiation under outdoor conditions. The detector is based on a Teflon coated, weather resistant black conical absorber. In contrast to other sensor designs, NR-Lite requires no fragile plastic domes. This results in a virtually maintenance free design. The NR-Lite is suitable for:

• Agricultural Meteorology: Evapotranspiration calculations and crop damage prevention
• Building physics: Study of thermal stress and heat balance
• Road Safety: Highway condition monitoring

The NR-Lite is easy to use. It is based on a thermopile sensor. The voltage is proportional to the net radiation. It can be directly connected to voltmeter or data logger with a mV input. The NR-Lite is suitable for conditions outdoor use and fully complies with CE regulations.

Specifications

Spectral response: 0-100 microns
Detector protection: Teflon coated (no domes)
Sensitivity (upper detector): 10 mV/Wm² (nominal)
Recommended output range
For atmospheric application: -25 to +25 mV
Sensor asymmetry: ± 20%
Range: -2000 to +2000 Wm²
Response time (1/e): 20 sec (nominal)
Temperature range: -30 °C to +70 °C
Directional error (0-60 degrees at 1000 Wm²): < 30 Wm²
Support arm: 800 mm long x 16 mm dia
Sensor enclosure: 80 mm dia

Ordering Information

240-110 NR-Lite Net Radiometer, includes 15m cable
240-110-A Amplifier PCB, specify output
330-0220S Additional Cable, per foot

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