EKO Instruments' MS-90 Plus+, is a new total solar irradiance measurement solution combining their MS-80 Class A Pyranometer, an original C-Box smart interface, and the internal rotating mirror design of the MS-90 DNI Sensor. The MS-90 Plus+ was developed as a practical solution to the increasing diversity of solar power plant locations and PV applications. With a small footprint, the MS-90 Plus+ can easily be deployed on rooftops or other inaccessible areas. The MS-90 Plus+ is an alternative to a full solar monitoring station due to the internal rotating mirror design of the MS-90 DNI Sensor at the heart of the new system. The distinct shape of the mirror reflects sunlight to a high-speed pyroelectric detector, measuring direct radiation without the whole unit tracking the sun as a much larger solar monitoring station would. The MS-90 Plus+ also includes an integrated GPS receiver, enabling the C-Box to calculate diffuse irradiance based on the DNI data from the MS-90 and the GHI data from the MS-80; plus, a MODBUS 485 RTU output for easy connection to any digital data acquisition system.
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