MS-90 Plus+ Trackerless Solar Monitoring Station

  • GHI measurements of the highest accuracy and lowest uncertainty with Class A pyranometer
  • DNI measurement with <5% uncertainty.
  • No sun-tracker required
  • Digital MODBUS 485 RTU output for DNI, GHI, DHI
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A cost effective system combining MS-90 and MS-80 for DNI, GHI and DHI data without sun tracker. MS-90 Plus+ is the combination of two innovative irradiance instruments from EKO: MS-90 DNI sensor and the fast response Class A pyranometer MS-80. These two instruments are connected via a special interface box (C-Box) with a GPS receiver and an processing unit. The system accurately measures DNI and GHI and calculates Diffuse irradiance (DHI) from the measurement data and the sun position.

The system provides a digital output signal (Modbus 485 RTU) and can be easily connected to various data acquisition systems in solar energy projects and meteorological stations (dataloggers, inverters, SCADA etc). It can also be connected to a PC.

The MS-90 ...

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System configuration
MS-90 Plus+

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  Specifications MS-90 Plus+
  ISO 9060:1990 Class C (DNI) + Class A (GHI, DHI)
  Output DNI, GHI, DHI (MODBUS 485 RTU)
Temperature response -20°C to 40°C +/- 5 %
Non-linearity +/- 2.5 %
  Operating temperature range -20 - 45 °C
Wavelength range 300 - 2500 nm
  Power supply 10.5 - 12.5 VDC
  Dimensions mm 350 (W) x 250 (L) x 200 (H) (Incl. optional base plate)
Weight 2.5 kg
  Ingress protection IP 67
  Cable length 10 m
  Geographic application Lattitude (-58º to 58º ) / Longitude (0º to 360º)
Power consumption < 6 W
  Options

MS-80 Pyranometer

MS-90 DNI Sensor

C-Box Processing interface

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Applications and uses

The accurate solar radiation measurements and the reliable driving require a little knowledge and attention: think about environmental influences (wind, rain/snow, soiling), re-calibration (bi-annual), without mentioning data processing, spectral effects, ...

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Solar radiation is not only the driving force behind the Earth’s weather phenomena, it also drives photovoltaic energy production. One day of solar energy received by the Earth exceeds the ...

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