Class A pyranometer SR200-D1

digitalModbusRS-485

Overview
The SR200 is an industrial-grade Class A pyranometer designed for accurate measurement of global solar irradiance in photovoltaic (PV) performance monitoring and meteorological applications. This all-digital sensor delivers the high measurement accuracy and reliability required for IEC 61724-1 Class A monitoring systems.

Key features
• Class A performance: fully compliant with ISO 9060:2018 Class A classification and IEC 61724-1 requirements for Class A PV monitoring systems in climates where dew and frost mitigation is not required.
• All-digital design with Modbus RTU communication over an isolated RS-485 interface.
• Industrial surge protection: integrated industrial-grade surge protection with optional SPD01 upgrade for enhanced immunity up to 4 kV.
• Electromagnetic compatibility (EMC): meets IEC 61326-1 Industrial Equipment requirements. Rated for Industrial Electromagnetic Environments
• Designed for seamless integration into industrial monitoring systems with minimal external components.
• Lowest total cost of ownership: supported by a worldwide calibration and service network to minimize downtime and maintenance costs.

Applications
• Global solar irradiance monitoring for photovoltaic (PV) performance monitoring systems.
• Solar resource assessment and meteorological monitoring networks.
• Utility-scale solar power plants requiring IEC 61724-1 Class A compliance.
• Long-term solar monitoring in environments where dew, frost, and snow mitigation are not critical.

Specifications
• Measurand: Global solar irradiance [W/m²]
• Sensor classification: ISO 9060:2018 spectrally flat Class A pyranometer
• Measurement range: -400 to 4000 W/m²
• Temperature response (-30 °C to +50 °C): < ±0.4%
• Operating temperature range: -40 °C to +80 °C
• Internal diagnostics: relative humidity monitoring
• Communication protocol: Modbus RTU
• Hardware interface: 2-wire RS-485
• RS-485 isolation voltage: 1.5 kV
• Electrical operating voltage: 8 to 30 VDC
• Power consumption: < 0.5 W
• Earthing terminal: Included
• Recommended calibration interval: < 2 years

Cable length options
• No cable
• 3 m
• 5 m
• 10 m
• 20 m