SMP10

The SMP10 is a secondary standard pyranometer that combines the sensor technology from the CMP11, the Smart interface from the SMP11 and the low maintenance from the CMP10.

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SMP Series

Key features

  • RS-485 Modbus® communication
  • No change of desiccant for 10 years
  • 5 year warranty (*)
  • Smart, more than just digital

The SMP10 has an internal drying cartridge that will last for at least 10 years if the housing is not opened. This minimises maintenance significantly. The interval for dome cleaning can be extended, and the quality of measurements maximised, by fitting SMP10 with the CVF4 ventilation unit.

The SMP10 has Modbus® interface, amplified analogue output, improved response time and temperature corrected measurement data. The wide and low power supply range from 5 to 30 VDC makes integration in meteorological and solar energy stations easy. The SMP10 is protected against over voltage, reversed polarity and short circuiting. Thanks to the identical sensitivity and connections of every SMP10, exchanging instruments for recalibration is easy.

PC Software for data logging, display of data and Modbus® address setting is provided as standard.

SMP10 measures incoming global solar radiation with a 180° field of view. Ideal for solar radiation measurements in both Meteorological and Solar Energy applications that require the Modbus protocol or amplified outputs.

(*) This product will need to be registered by the end-user within 6 months of purchase to activate the 5 year warranty.

Technical specification

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 dependence of sensitivity (-20 ºC to +50 ºC) < 1 %
Analogue output (-V version) 0 to 1 V
Analogue output (-A version) 4 to 20 mA
Digital output 2-wire RS-485

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