SP-522-SS Modbus Digital Output Thermopile Pyranometer

Technical Specifications

Classification

• ISO Classification: ISO 9060:2018 Class C — fast response

Electrical Specifications

• Input Voltage Requirement: 5.5 to 24 V

• Average Maximum Current Draw:

  • 4 mA with heater off

  • 30 mA with heater on

Measurement Performance

• Calibration Uncertainty at 1000 W/m²: Less than 3%

• Measurement Repeatability: Less than 1%

• Long-Term Drift / Non-Stability: Less than 2% per year

• Non-Linearity: Less than 1% up to 2000 W/m²

• Detector Response Time: 0.5 s, baud rate dependent

Optical Specifications

• Field of View: 180°

• Spectral Range: 385 to 2105 nm
  Wavelengths where response is 50% of maximum

• Directional / Cosine Response: Less than 30 W/m² at 80° solar zenith

Temperature and Offset Performance

• Temperature Response: Less than 5% from -15 to 45 °C

• Zero Offset A: Less than 5 W/m²; less than 10 W/m² when heated

• Zero Offset B: Less than 5 W/m²

Operating Environment

• Operating Temperature: -50 to 80 °C

• Relative Humidity: 0 to 100%

• Water Resistance: Can be submerged in water up to 30 m

Physical Specifications

• Dimensions: 30.5 mm diameter × 37 mm height

• Mass: 140 g with 5 m cable

Cable

• Standard Cable Length: 5 m

• Cable Type: Two-conductor, shielded, twisted-pair wire

• Additional Cable: Available in multiples of 5 m

• Cable Jacket: TPR jacket with high water resistance, high UV stability and flexibility in cold conditions

• Connection: Pigtail lead wires

Warranty and Manufacturing

• Warranty: 4 years against defects in materials and workmanship

• Manufacturing: Assembled in the USA