Class A pyranometer SMP10x

ModbusRS-485digital

Overview
The SMP10x is a digital-only pyranometer engineered for solar PV monitoring and SCADA integration. ISO 9060 spectrally flat Class A performance, digital RS-485 Modbus RTU communication and built-in environmental sensors provide reliable irradiance measurement and streamlined data integration for industrial monitoring systems.

Key product features

• ISO 9060 spectrally flat Class A
• Digital-only output via RS-485 Modbus RTU
• Internal desiccant condition monitoring with saturation warning flag
• Internal temperature, humidity and pressure diagnostics for predictive maintenance
• Suitable for IEC 61724-1 Class A system monitoring
• Long-term stability with 5-year calibration interval and 5-year stability rating
• Designed for reliable operation from desert heat to polar cold

Specifications (table)
Spectral range (50% points): 285 to 2800 nm
Response time (63%): < 0.7 s
Response time (95%): < 2 s
Zero offset A: < ±7 W/m²
Zero offset B: < ±2 W/m²
Directional response (up to 80° with 1000 W/m² beam): < ±10 W/m²
Temperature response (-40 to +70°C): < 1 %
Calibration interval: 5 years
Digital output measurement range: -400 to 2000 W/m²

Additional notes
The SMP10x offers digital-only outputs to simplify integration into modern SCADA and SCADA-like systems. Built-in desiccant health monitoring and internal climate sensors support preventive maintenance strategies, while specified long-term stability (approx. ±0.5% over five years) reduces recalibration frequency and lifecycle costs.

Technical specifications

• Model: SMP10x
• Spectral range: 285–2800 nm
• Response time (63% / 95%): <0.7 s / <2 s
• Zero offsets: Type A < ±7 W/m², Type B < ±2 W/m²
• Directional response: < ±10 W/m² (up to 80° at 1000 W/m²)
• Temperature response: < 1 % (-40 to +70°C)
• Operating temperature range: -40°C to +80°C
• Calibration interval: 5 years
• Long-term stability: 5-year stability rating; sensor drift approx. ±0.5% over five years
• Output / Communication: Digital-only, RS-485 Modbus RTU
• Digital output measurement range: -400 to 2000 W/m²