The SP-510 is an upward-looking thermopile pyranometer with an analog output of 0 to 114 mV. The sensor incorporates a blackbody thermopile detector and acrylic diffuser with a rugged, self-cleaning sensor housing design. Typical applications include shortwave radiation measurement in agricultural, ecological, and hydrological weather networks. Sensors are also used to optimize photovoltaic systems.
These sensors can also be coupled with our downward facing pyranometer to form an albedometer. For this application, we recommend using our AL-130 Albedometer mounting bracket. Sensor includes IP67 marine-grade stainless-steel cable connector 30 cm from head to simplify sensor removal and replacement for maintenance and recalibration.
Power Supply Self powered
Sensitivity (variable from sensor to sensor, typical values listed) 0.057 mV per W mˉ²
Calibration Factor (reciprocal of sensitivity) (variable from sensor to sensor, typical values listed) 17.5 W mˉ² per mV
Calibration Uncertainty ± 5 %
Calibrated Output Range 0 to 114 mV
Measurement Range 0 to 2000 W mˉ² (net shortwave irradiance)
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 (50 % points) 385 nm to 2105 nm
Directional (Cosine) Response Less than 30 W mˉ² at 80 ˚ solar zenith
Temperature Response Less than 5 % from -15 to 45 C
Zero Offset A Less than 5 W mˉ², Less than 10 W mˉ² (heated)
Zero Offset B Less than 5 W mˉ²
Operating Environment -50 to 80 C, 0 to 100 % relative humidity
Heater 780 Ω, 15.4 mA current drain and 185 mW power requirement at 12 V DC
Uncertainty in Daily Total Less than 5 %
Dimesinons 28.7 mm height, 23.5 mm diameter
Mass 90 g
Warranty 4 years against defects in materials and workmanship
