Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Updated:2025-03-13
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User's Manual Datasheet
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.
Modular design, low weight and easy levelling
Low solar offsets in the longwave measurement
Unique capability to heat the pyrgeometer reducing measurement errors caused by dew
Energy balance studies
Surface flux measurements
Climatological networks
Meteorology / surface energy flux measurement
longer cable, in multiples of 5 m, cable lengths above 20 m in multiples of 10 m
upgrade to NR01 net radiometer
| Measurand | downward longwave radiation*global solar radiation |
| Optional measurand | sky temperature*solar 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?? m |
| Calibration traceability longwave | to WISG |
| Spectral range longwave | 4.5 to 40 x 10?? 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 | on a 1 inch NPS tube; RA01 delivery includes a shim for easy alternative mounting on a ? inch tube (tubes not included) |
| Standard cable length | 2 x 5 m (see options) |
| Required measurand | instrument body temperature |
| Options |
? Longer cable, in multiples of 5 m, cable lengths above 20 m in multiples of 10 m ? Upgrade to NR01 net radiometer |
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