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Solar Radiation SensorSR20

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Secondary Standard Pyranometer / Class A

SR20

  • ISO 기준 secondary standard / Class A
  • Heater 내장
  • 낮은 온도의존성
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Model SR20 SR20-D2(Digital output)
Measurand Hemispherical solar radiation
ISO classfication Secondary standard pyranometer / Class A
Calibration uncertainty < 1.2% (K = 2)
Calibration traceability to WRR
Spectral range 285 to 3000 nm
Sensitivity (normal) 15 μV/ Wm-2
Rated operating temperature range -40 to +80 °C
Temperature response

< ± 1 % (-10 to +40 °C)

< ± 0.4 % (-30 to +50 °C) with correction in dataprocessing

Temperature sensor Pt100 or 10 kΩ thermistor
Heater 1.5 W at 12 VDC -
Standard cable length 5 m
Digital output - -irradiance in W/m2
-instrument body temperature in °C
Communication protocol - Modbus / over 2-wire RS-485
Transmission mode - RTU
Rated operating voltage range - 5 to 30 VDC
4-20 mA output - irradiance in W/m2
Transmitted range of 4-20 mA output - 0 to 1600 W/m2
Rated operating voltage range of 4-20 mA output

-

5.5 to 40 VDC

Power consumption - main supply: < 75 x 10-3W at 12 VDC
4-20 mA current loop: < 40 x 10-3 W at 12 VDC, with recommended 100 Ω shunt resistor
Standard cable length - 5 m