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Hukseflux - Model SRA300-D1 -Industrial Class A Albedometer with Heating and Tilt Sensor
An albedometer is an instrument that measures both global and reflected solar radiation and, by calculation, the solar albedo, or solar reflectance for a particular ground surface. An albedometer is composed of two pyranometers, both installed horizontally, the downfacing one measuring reflected solar radiation. Using the albedometer is easy. The irradiance in W/m2 is transmitted via the Modbus protocol over 2-wire RS-485. The working principle and specifications of the pyranometers can be found in the pyranometer user manuals. The pyranometers can be connected directly to commonly used data logging and SCADA systems. To create an albedometer, two sensors are combined with one AMF03 albedometer mounting kit. AMF03 includes a fixture with a rod for mounting purposes and a glare screen. The user assembles these modular components into an albedometer. The modular design facilitates maintenance and calibration.
SRA300-D1: industrial-grade, high-accuracy and reliable
SRA300-D1 consists of two identical pyranometer models SR300-D1, one facing up, one facing down. SR300-D1 complies with – Industrial-grade – Immunity, Emission, Electrical, Environmental and Safety requirements for use in these outdoor and industrial environments, greatly improving measurement reliability. Ease of operation is further enhanced through extended functionality and diagnostics.
SR300-D1 is intended for deployment where the highest measurement reliability and accuracy are required. Most importantly, it is heated to mitigate dew and frost, and has an on-board tilt sensor.
Immunity to high voltages and currents - surges
SR300-D1 is tested and classified for Industrial Environments according to IEC 61326-1 and IEC 61000-6-2. When designing a measuring system, pyranometer users may reach several levels of immunity. With the optional Surge Protection Device SPD01 this immunity can be increased to 4 kV.
Suggested use
- PV monitoring with bifacial solar modules
- high-accuracy meteorological observations
- extreme climates (tropical / polar)
SRA300-D1 is an all-digital, industrial albedometer. It is engineered to measure global and reflected solar radiation and solar albedo, also called solar reflectance, with the utmost reliability and measurement accuracy.
- internal heating for dew and frost mitigation in all climates
- integrated surge protection, designed to withstand the extreme conditions encountered on PV power plants and meteorological stations, upgradable to 4 kV with optional SPD01 Surge Protection Device
- complies with the latest ISO and WMO standards
- the modular design facilitates maintenance and calibration
- Measurand : global solar radiation and reflected solar radiation
- Optional measurand : albedo or solar reflectancenet solar radiation
- SRA300-D1 specifications :
- Included : 2 x identical ISO 9060 spectrally flat Class A pyranometer SR300-D1, 1 x AMF03
- IEC 61724-1:2021 compliance : meets Class A PV monitoring system requirements
- Calibration uncertainty : < 1.2 % (k = 2)
- Calibration certificate : included (content limited according to ISO/IEC 17025, section 7.8.1.3)
- Heating : included
- Status LED : power & communication
- Mounting : mounting rod with 15 x 10?³ m diameter
- Instrument diagnostics : leakage, tilt, rotation, heating, internal humidity
- Rated operating temperature : -40 to +80 °C range
- Output : digital Modbus RTU over RS-485
- Temperature response : < ± 0.4 % (-30 to +50 °C)
- Temperature response test and directional response test : reports included
- Power consumption : < 3 W at 24 VDC
- Digital output :
- Output : irradiance in W/m²; instrument body temperature in ° C; tilt angle in °; internal humidity in %; ventilator speed in RPM
- Communication protocol : Modbus RTU
- Hardware interface : 2-wire (half duplex) RS-485
- Rated operating voltage range : 8 to 30 VDC
- EMC and Surge immunity * :
- Equipment classification : Industrial Equipment
- Surge Immunity : Level 2, test level 1 kV
- with optional SPD01 : Level 4, test level 4 kV
- Earthing terminal : included on instrument
- AMF03 :
- Included parts : 1 x glare screen; 1 x AMF03 fixture with rod; 1 x conical positioner; 2 x M5x12 socket head cap screw; 1 x M6x8 socket head cap screw, 2 x M8x12 set screw, 1 x mounting and fixation instruction sheet
- * at standard cable length of 3 m