Analog 2-component radiometer RA01

Product catalog summary

Introduction
The RA01 is a leading 2-component radiometer designed for scientific-grade energy balance and surface flux networks. It measures global solar and downward longwave radiation using a pyranometer and a pyrgeometer, respectively. Key features include a modular design, low weight, easy leveling, and reduced solar offsets in longwave measurements.

Product Features
The RA01 includes a heating capability for the pyrgeometer to minimize errors from dew deposition. It can estimate net radiation when combined with solar albedo and local surface temperature data, offering cost efficiency and independence from local surface properties.

Operation
The RA01 connects easily to common data logging systems. Irradiance levels are calculated by dividing the output voltages by sensor sensitivities, with longwave irradiance corrected using the instrument body temperature. Sensor sensitivities are provided in the product certificate.

Design
The RA01 features a modular design allowing for easy replacement or recalibration of sensors. It includes a 2-axis leveling assembly compatible with 1-inch NPS tubes and can be mounted on ¾ inch tubes with an included shim.

Suggested Use
The RA01 is suitable for energy balance studies, surface flux measurements, and climatological networks.

Standards and Options
The RA01 complies with ISO 9060 and WMO-No. 8 standards. Options include longer cables and a 10 kΩ thermistor instead of the standard Pt100 temperature sensor.

Specifications
- Measurand: Global solar radiation and downward longwave radiation
- Pyranometer: Spectrally flat Class C, ISO 9060:2018 classification
- Pyrgeometer: 150° field of view angle
- Temperature Sensor: Pt100
- Operating Temperature Range: -40 to +80 °C
- Heater: 12 VDC, 1.5 W
- Standard Cable Length: 2 x 5 m

About Hukx
Hukx is a leader in solar radiation and heat flux sensor technology, headquartered in the Netherlands with global sales offices. They offer comprehensive support from sensor design to recalibration.

Catalog excerpts

Brochure jjjjj Analog 2-component radiometer

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RA01 Analog 2-component radiometer with heating and spectrally flat Class C pyranometer RA01 is a market-leading 2-component radiometer, primarily used in scientific-grade energy balance and surface flux networks. It offers 2 separate measurements of global solar and downward longwave radiation with a pyranometer and a pyrgeometer, respectively. Product features include a modular design, low weight, easy leveling, and low solar offsets in the longwave measurement. RA01’s unique capability to heat the pyrgeometer reduces measurement errors caused by dew deposition. When combined with estimates...

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RA01 measures the 2 incoming components of the surface radiation balance: global solar and downward longwave radiation. The solar radiation sensor is called a pyranometer, and the longwave sensor is referred to as a pyrgeometer. To calculate sky temperature, it is necessary to compensate for irradiated heat emitted by the pyrgeometer (Stefan-Boltzmann law). A Pt100 temperature sensor is included in RA01’s body for this purpose. Sunshine duration may also be estimated using the WMO-approved pyranometric method. 2 1 Figure 3 Top view of RA01: (1) leveling assembly for x- and y-axis, (2) cables,...

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- energy balance studies - surface flux measurements - climatological networks Applicable instrument-classification standards are ISO 9060 and WMO-No. 8 Guide to Meteorological Instruments and Methods of Observation. - NR01 4-component net radiometer, the most popular instrument to measure net radiation and the 4 separate components of the surface radiation balance - CMF01 mounting fixture for installing RA01 on a mast - View our complete product range of pyranometers and pyrgeometers. - longer cable, in multiples of 5 m; cable lengths above 20 m in multiples of 10 m - 10 kQ thermistor instead...

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RA01 specifications General specifications measurand ISO 9060:2018 classification WMO compliance instrument body temperature required readout calibration traceability solar spectral range solar calibration traceability longwave spectral range longwave rated operating temperature range standard cable length pyranometer: spectrally flat Class C pyranometer: WMO Class C downward longwave radiation* sky temperature* optional measurand sunshine duration included sensors 1 x ISO 9060 spectrally flat Class C pyranometer 1 x pyrgeometer with 150 ° field of view angle global solar radiation optional measurand...

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About Hukx Hukx is the leading innovator in solar radiation and heat flux sensor technology. We are proud to set the standard in high-accuracy measurement, and to be working at the heart of the energy transition. Customers worldwide rely on our bestselling pyranometers and heat flux sensors. From sensor design and selection to supply and recalibration, we support you across the entire lifecycle. Hukx is headquartered in the Netherlands, with locally owned representative sales offices in the USA, Brazil, India, China, Southeast Asia, and Japan. Let us help you select the best sensor for your application....

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