* The sensing element adopts a wire-wound electroplating thermopile, and the sensing surface is a black layer with high absorptivity, which has short response time and small error.
* Using the thermal effect of radiation, it absorbs solar radiation and converts it into thermoelectromotive force, and has a temperature compensation function, which can more accurately measure solar radiation.
* The upper part of the sensing surface adopts a transparent double-layer glass cover with a light transmittance of 95%, which can not only reduce the inflfluence of air convection on the equipment, but also block the radiation of the cover itself.
Power supply
10V~30V DC, or without power supply
Power consumption
485 output: 0.8W
4~20mA/0~5V/0~10V: 1.2W

Output signal
485 (standard Modbus-RTU protocol)
4~20mA current output
0~5V/0~10V voltage output
Working temperature
-40℃~60℃
Working humidity
0%~RH
Sensitivity
7~14 μV·W-1·m2
Internal resistance
about 300Ω
Response time (99%)
≤30s
Non-linear error
≤±3%
Corresponding error of directionality
≤±30W/m²
Temperature response error
≤±8% (-40℃~+40℃)
Corresponding error of tilt
≤±5%
Spectral range
0.3~3μm
Measuring range
0-2000W/m²
Resolution
1W/m²
Accuracy
±3%
Annual stability
≤±3%
Spectral selectivity
≤±10%
Cosine response error
≤±5%