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DR15-A1 Analogue spectrally flat Class B pyrheliometer

Updated:2023-06-01

Brand: Hukseflux
Model：DR15-A1
Product description: DR15 pyrheliometer is an ISO 9060 spectrally flat Class B (old ISO classification “first class”) instrument. It replaces the models DR01, DR02 and DR03. DR15 is used in tracker-mounted operation, and
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DR15-A1 Analogue spectrally flat Class B pyrheliometer： User's Manual Datasheet

DR15 pyrheliometers are applied in high-accuracy measurements of the solar radiation received by a plane surface from a 5 ° full field of view angle. This quantity, expressed in W/m², is called “direct” solar radiation or DNI (direct normal irradiance). It is necessary to keep the instrument pointed at the sun by using a two-axis tracker.

DR15 complies with the Class B specifications of the ISO 9060:2018 standard. Each DR15 pyrheliometer is supplied with test results for the individual instrument:

sensitivity

response time

Each DR20 pyrheliometer also includes a test report on temperature response, as required by ISO 9060 for Class A classification.

Suggested Use

Solar energy surveys

Solar resource assessments

Meteorological networks

Sites with dew and frost problems

Areas of Application

Meteorology / surface energy flux measurement

Solar energy / PV system performance monitoring

DR15-A1 Analogue spectrally flat Class B pyrheliometer Specifications：

Measurand	Direct solar radiation
ISO classification	Spectrally flat Class A
Calibration uncertainty	< 1.2 % (k = 2)
Heating	Included
Heater	1 W at 12 VDC
Response time (95 %)	4 s
Full field of view angle	5 °
Slope angle	1 °
Zero offset	< ± 1 W/m²
Calibration traceability	to WRR
Spectral range	200 to 4000 x 10⁻⁹ m
Rated operating temperature range	-40 to +80 °C
Temperature response	< ± 0.4 % (-30 to +50 °C) with correction in data processing
Calibration certificate	Included
Temperature response test of individual instrument	Report included
Standard cable length	5 m