SRA300-D1 albedometer

Class A albedometer for industrial use SR300-D1

Industrial Class A albedometer with heating and tilt sensor

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

Specifications

Measurand

global solar radiation and reflected solar radiation

Optional measurand

albedo or solar reflectance
net solar radiation

View all specifications

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Specifications
Description
Services & Support
Applications
FAQ
Accessories

Specifications

Measurand

global solar radiation and reflected solar radiation

Optional measurand

albedo or solar reflectance
net 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

Options

We offer accessories for use with the SRA300-D1, including electrical and mounting hardware options.

SPD01 Surge Protection Device to upgrade Surge Protection to level 4 (for up to 3 pyranometers) for cables longer than 3 meters
ALF01 albedometer levelling fixture
CMF01 crossarm mounting fixture

Downloads

SRA300-D1 albedometer brochure

Description

What is an albedometer?

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)

Areas of Application

Meteorology / surface energy flux measurement

Solar energy / PV system performance monitoring

SRA300-D1 albedometer

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

Would you like a personalised quote?

or contact us: info@hukseflux.com