Product Description
RA01 is a market leading 2-component radiometer, used in scientific-grade energy balance and surface flux studies. It offers 2 separate measurements of solar and longwave radiation. Product features include a modular design, low weight, and easy levelling, and low solar offsets in the longwave measurement. The unique capability to heat the pyrgeometer reduces measurement errors caused by dew deposition. When combined with estimates of solar albedo and of local surface temperature, this instrument can also be used for estimation of net radiation. The advantages of this approach are cost reduction and independence from local surface properties.
Specification
Measurand : global solar radiation
Measurand : downward longwave radiation *
Optional measurand : sky temperature *
Optional measurand : sunshine duration
Included sensors : 1 x ISO 9060 second class pyranometer, 1 x pyrgeometer with 150 ° field of view angle
Calibration traceability solar : to WRR
Spectral range solar : 285 to 3000 x 10-9 m
Calibration traceability longwave : to WISG
Spectral range longwave : 4.5 to 40 x 10-6 m
Required readout : 2 x DC voltage, 1x Pt100
Rated operating temperature range : -40 to +80 °C
Temperature sensor : Pt100
Measurand Pt100 : instrument body temperature
Heater on pyrgeometer : 1.5 W at 12 VDC
Levelling : 2-axis levelling assembly (included)
Mounting : ¾ inch NPS tube (not included)
Standard cable length : 2 x 5 m (see options)
* Required measurand : instrument body temperature
