Hukseflux รุ่น SRA20-D2-05 เครื่องวัดความเข้มสำหรับแสงอาทิตย์ ,Digital spectrally flat Class A (secondary standard) albedometer, with Modbus over RS-485 and 4-20 mA output. Consists of 2 x SR20-D2 Class A pyranometers, 1 x AMF02 albedometer mounting kit ,

Measurand

global solar radiation and reflected solar radiation

Measurement range

0 to 2000 W/m²

Optional measurand

albedo or solar reflectance ,net solar radiation

Included sensors

2 x identical ISO 9060 secondary standard pyranometer

Mounting

mounting rod with 15 x 10⁻³ m diameter

Calibration uncertainty

< 1.2 % (k = 2)

Calibration traceability

to WRR

Spectral range

285 to 3000 x 10⁻⁹ m

Rated operating temperature range

-40 to +80 °C

Temperature response

< ± 0.4 % (-30 to +50 °C)

Temperature response test and directional response test of individual instrument

Reports included

Standard cable length

2 x 5 m (see options)

Communication protocol

Modbus over 2-wire RS-485

Transmission mode

RTU

Rated operating voltage

5 to 30 VDC range

Power consumption

< 150 x 10⁻³ W at 12 VDC (in total)

Output

irradiance in W/m²

Transmitted range of 4-20 mA output

0 to 1600 W/m²

Rated operating voltage of 4-20 mA output

5.5 to 40 VDC range

- main supply

< 150 x 10⁻³ W at 12 VDC (in total)

- 4-20 mA current loop

< 80 x 10⁻³ W at 12 VDC, with recommended 2 x 100 Ω shunt resistors

Sensors

(2 x) SR20-D2 secondary standard pyranometer

Included with AMF02

(1 x) glare screen; (1 x) fixture with rod; (2 x) o-ring; (1 x) conical positioner); (2 x) plug (pre-mounted); (2 x) M5x12 socket head cap screw; (1 x) M6x10 socket head cap screw; (2 x) M6x12 set screw (pre-mounted); (1 x) instruction sheet