DR30-D1 pyrheliometer

DR30 is a high-accuracy digital direct (normal incidence) solar radiation sensor
DR30-D1 next level digital first class pyrheliometer
DR30 has an internal tilt sensor to check solar tracker performance
DR30-D1 pyrheliometer has superior window heating that leads to high data availability
Next level digital spectrally flat Class A pyrheliometer

Welcome to the next level in solar radiation monitoring! DR30 is a high-accuracy digital direct (normal incidence) solar radiation sensor. The scientific name of this instrument is pyrheliometer. DR30 complies with the spectrally flat Class A specifications of the ISO 9060:2018 standard. This next level pyrheliometer has superior window heating that leads to high data availability, and an internal tilt sensor to check tracker performance.

Specifications
Measurand
  • direct solar radiation
  • sensor tilt angle
Would you like a personalised quote?

or contact us: info@hukseflux.com

Specifications

Measurand
  • direct solar radiation
  • sensor tilt angle
ISO classification
  • spectrally flat Class A pyrheliometer
Calibration uncertainty
  • < 1.2 % (k = 2)
Tilt measurement uncertainty
  • ± 1 ° (0 to 180 °)
Heating
  • included
Response time (95 %)
  • 4 s
Full field of view angle
  • 5 °
Slope angle
  • 1 °
Power consumption
  • :
- standard operating mode
  • 2 W
- low power operating mode
  • 0.1 W
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)
Temperature response test of individual instrument
  • report included
Tilt sensor test of individual instrument
  • report included
Rated operating voltage
  • 7 to 30 VDC
Standard cable length
  • 5 m
Digital output
  • :
Output:
  • irradiance in W/m²
Output:
  • instrument body temperature in °C
Output:
  • tilt angle in °
Output:
  • internal humidity in %
Output:
  • heater current in mA
Communication protocol
  • Modbus / over 2-wire RS-485
Transmission mode
  • RTU
Options
  • longer cable; 10 and 20 metres
  • 20 metres extension cable with 2 connectors

Description

DR30-D1 next level digital first class pyrheliometer

DR30 next level digital spectrally flat Class A pyrheliometer

The all-digital DR30-D1 pyrheliometer offers the highest accuracy and highest data availability, featuring window heating at low offsets. At the same heating power, the heating has been improved with a factor 4, at a 4 times lower offset! DR30 also offers on-board tilt and humidity sensors. It is applied in high accuracy measurement 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.

The importance of heating: DR-series pyrheliometers with superior window heating beat dew and frost

Heated for high data availability

High data availability is attained by heating of the front window. This suppresses dew and frost deposition.
Power consumption is low: DR30 needs only 2 W to keep its window free from dew and frost.

 

DR30-D1 pyrheliometer has superior window heating that leads to high data availability

Remote sensor diagnostics

In addition to solar irradiance, DR30 outputs sensor diagnostics such as:

  • tilt angle
  • internal humidity
  • heater current

Remote diagnostics permits real-time status monitoring, reducing the need for (un)scheduled field inspections.

Hukseflux Sensor Manager software allows the user to plot and export data, to view outputs for sensor diagnostics, and to change the Modbus address and communication settings

For communication between a PC and DR30, the Hukseflux Sensor Manager software is included.
It allows the user to plot and export data, and change the DR30 Modbus address and communication settings. Also, the digital outputs may be viewed for sensor diagnostics.

DR series pyrheliometers with superior window heating for the best DNI solar data

Using DR-series pyrheliometers offer significant benefits over the use of competing models. The all-digital DR30 pyrheliometer offers the highest accuracy and highest data availability, featuring heating at low offsets, and on-board tilt and humidity sensors. The advantages of having a heater and a tilt sensor are demonstrated in the DR30-D1 brochure (PDF).

Suggested use

  • solar energy surveys
  • solar resource assesments
  • meteorological networks
  • sites with dew and frost problems
DR30-D1 pyrheliometer
DR30 is a high-accuracy digital direct (normal incidence) solar radiation sensor

 

  • ISO spectrally flat Class A
  • low power consumption: DR30 needs only 2 W to keep its window free from dew and frost
  • highest accuracy and highest data availability, featuring heating at low offsets, and on-board tilt and humidity sensors
Would you like a personalised quote?

or contact us: info@hukseflux.com