Class A pyranometer SMP22x

ModbusRS-485smart

Product overview
The SMP22x is an ISO 9060:2018 spectrally flat Class A smart pyranometer for high-accuracy solar irradiance measurement. Designed for PV monitoring, meteorology and scientific research, it combines fast response, excellent temperature stability and digital communications (RS-485 Modbus RTU) with internal desiccant monitoring and a 5-year recommended calibration interval.

Key features

• ISO 9060 spectrally flat Class A
• Superior directional and temperature response
• Fast response time <0.7 s (63%)
• Internal desiccant with monitoring (life >10 years)
• RS-485 Modbus® communication (Modbus RTU)
• 5-year stability rating and recommended max calibration interval 5 years
• MTBF >10 years; 5 year warranty

Details
The SMP22x improves on the SMP22 platform by reducing spectral and directional errors and lowering zero-offsets. Built-in diagnostics include temperature and desiccant condition monitoring accessible via SmartExplorer software. Typical deployments include SCADA integration, solar PV performance monitoring, scientific flux measurements and automated meteorological stations.

Specifications

• Spectral range (50% points): 250–3500 nm
• Response time (63%): <0.7 s; (95%): <2 s
• Zero offset A: < ±5 W/m²; Zero offset B: < ±1 W/m²
• Directional response (up to 80° with 1000 W/m² beam): < ±5 W/m²
• Temperature response (-40 to +70 °C): <0.3 %
• Digital output range: -400 to 2000 W/m²; RS-485 Modbus RTU
• Internal desiccant with monitoring (desiccant life >10 years)
• Long-term stability: 5-year stability rating; recommended max calibration interval 5 years
• MTBF >10 years

Available documents (titles)

• SMP10x - SMP22x pyranometers (datasheet)
• Datasheet - Albedometers - EN
• Manual - Pyranometers - SMP10x SMP22x - English
• Declaration of Conformity - Smart Pyranometers
• Smart Explorer installer
• Brochure - Pyranometers