Upward-Looking Thermopile Pyranometer (SP-510-SS)

Introduction to Sensor

The SP-510-SS Thermopile Pyranometer is a high-precision solar radiation sensor designed for reliable shortwave radiation measurement in environmental, agricultural, hydrological, and renewable energy applications. Using advanced thermopile technology with a blackbody detector, the sensor delivers stable and accurate readings across a wide range of atmospheric conditions. Its rugged self-cleaning housing and marine-grade stainless-steel connector ensure dependable long-term outdoor performance while simplifying maintenance and recalibration.

Specifications

Specification	Details
ISO Classification	ISO 9060:2018 Class C (fast response)
Power Supply	Self powered
Sensitivity	0.045 mV per W/mˉ² (typical)
Calibration Factor	22 W/mˉ² per mV (typical)
Calibration Uncertainty at 1000 W/mˉ²	Less than 3%
Calibrated Output Range	0 to 90 mV
Measurement Range	0 to 2000 W/mˉ²
Measurement Repeatability	Less than 1%
Long-term Drift	Less than 2% per year
Non-linearity	Less than 1%
Detector Response Time	0.5 seconds
Field of View	180˚
Spectral Range	385 nm to 2105 nm
Directional (Cosine) Response	Less than 30 W/mˉ² at 80˚ solar zenith
Temperature Response	Less than 5% from -15°C to 45°C
Zero Offset A	Less than 2 W/mˉ²; Less than 10 W/mˉ² (heated)
Zero Offset B	Less than 5 W/mˉ²
Operating Environment	-50°C to 80°C, 0 to 100% relative humidity
Heater	780 Ω, 15.4 mA current drain, 185 mW power at 12 V DC
Uncertainty in Daily Total	Less than 5%
Dimensions	28.7 mm height, 23.5 mm diameter
Mass	90 g
Warranty	4 years against defects in materials and workmanship
Manufactured	Assembled in the USA