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The ISO First Class MS-56 is a direct normal incidence (DNI) solar irradiance sensor. Also known as a pyrheliometer, it is used as a reference sensor for routine operation on a Solar Tracker. The all-weather MS-56 is sensitive to solar irradiance in the spectral range 200 – 4000nm and works under the most extreme conditions in a temperature range from -40°C...+80°C.
The versatile MS-56 combines all features of a quick broadband detector enabled by an advanced technology thermopile detector. It combines a unique fast response time (
The integrated low power window heater prevents dew deposition or frost on the outside window. The MS-56 has a robust but compact and smooth design which forms the new generation of EKO Instruments solar radiometers that are designed for most demanding Photovoltaic and Meteorological applications at any place on earth. Each MS-56 is calibrated and tested at EKO upon manufacture against EKO’s reference sensors which are fully traceable to the WRR (World Radiometric Reference) maintained at the PMOD/WRC (Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center) in Davos, Switzerland.
New to the MS-56, the optional anti-soiling system which can be retrofitted to the MS-56 Pyrheliometer will keep the Quartz window free of sand, dust, rain and snow. In desert environments soiling sometimes becomes an issue as the Irradiance measurement can be affected.