SMP22

The SMP22 is a secondary standard pyranometer that combines the new smart interface with quartz domes and sensor technology from the CMP22, which has a proven track record of decades, making it the most accurate and reliable pyranometer in the world.

Enquire about this product
SMP Series

Key features

  • RS-485 Modbus® communication
  • No change of desiccant for 10 years
  • 5 year warranty (*)

The SMP22 has the widest spectral range, improved directional response, and reduced thermal offsets. Because of the highest optical quality domes, the directional error is reduced below 5 W/m2. The SMP22 comes standard with RS-485 Modbus® interface and 5 year warranty.

The SMP22 has an internal desiccant that will last for at least 10 years. This minimises maintenance significantly.

The interval for dome cleaning can be extended, and the quality of measurements maximised, by fitting SMP22 with the CVF4 ventilation unit.

The SMP22 has a digital interface, amplified analogue output, improved response time and individual temperature corrected measurement data. The SMP22 is supplied with individual measured cosine response data. The wide and low power supply range from 5 to 30 VDC makes integration in meteorological and solar energy stations easy. The SMP22 is extremely robust and comes with 5 years warranty.

Thanks to standardised output and connections of every SMP6, exchanging instruments for recalibration is easy. SmartExplorer Windows™ software for data logging, display of data and Modbus® address setting is provided as standard.

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

Technical specification

Spectral range (20% point) 190 to 4000 nm
Spectral range (50% points) 200 to 3600 nm
Response time (95%) < 2 s
Zero offset A < 3 W/m²
Zero offset B < 1 W/m²
Directional response (up to 80° with 1000 W/m² beam) < 5 W/m²
Temperature dependence of sensitivity (-20 ºC to +50 ºC) < 0.3 %
Temperature dependence of sensitivity (-40 °C to +70 °C) < 0.3 %
Analogue output (-A / -V version) 4 to 20 mA / 0 to 1 V
Digital output 2-wire RS-485

Related Documents