Hukseflux SR20 D2 (digital) Thermopile Pyranometer (calibrated)
• Most accurate digital secondary standard pyranometer available
• ISO 9060: Secondary Standard
• Class A
• For Global Horizontal Irradiance (GHI) measurements (W/m2)
• Sunshine duration (optional)
• SPI temperature sensor
• Digital output signal: Modbus RTU (2-wires RS-485)
• Measurement range: -400 W/m² to 4000 W/m²
• Spectral range: 285 to 3000 nm
• Incl. calibration sheet with each sensor defines output in microvolts per Watt/square meter; traceable to World Radiometric Reference (WRR)
• Directional error (1000 W/m2 beam): ± 10 W/m2
• Response time 4.5 sec
• Power consumption: < 75 x mW at 12 VDC
• Non-linearity (to 1000 W/m2): < ± 0.2 % (100 to 1000 W/m2)
• Non stability (drift): < ± 0.5% change per year
• Best-in-class temperature response < ± 0.4 % (-30 to +50 °C), < ± 1 % (-10 to +40 °C)
• Best "zero-offset a" (only 5 W/m²) and best calibration uncertainty (< 1.2 % (k = 2))
• Incl. 5 m (16.4') cable. Longer cable, in multiples of 5 m available at an additional price.
Datasheet
