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MS-80SH Plus +
Solar Monitoring Station
Class A monitoring solution for Diffuse Horizontal Irradiance measurements
The MS-80SH Plus + is the all-in-one solution built on MS-80SH fast response Class A pyranometer with rotating shadow band to measure GHI, DHI and DNI solar irradiance. The autonomous system is reliable, accurate, cost-saving alternative to larger sun tracker-based options.
MS-80SH Plus +
A precise Solar Monitoring Station to measure diffuse measurement, The MS-80SH Plus+ system features the top-tier EKO MS-80SH ISO 9060:2018 Class A Spectrally Flat & Fast Response Pyranometer, equipped with integrated dome heating. Combined with a Rotating Shadow Band (RSB) setup, it delivers precise Global, Diffuse, and Direct irradiance data.
This system offers a cost-effective, low maintenance solution tailored for the expanding variety of solar power plant locations and Photovoltaic (PV) applications. The RSB-02 Rotating Shadow Band features a motorized rotating band that periodically shades and unshades the stationary MS-80SH pyranometer while operating in RSB mode. This design allows for the measurement of all three irradiance components with a single sensor. The system leverages the pyranometer’s fast response and spectrally flat thermopile technology to deliver accurate irradiance data, even under varying sky and spectral conditions.
Additionally, using an ISO 9060 Class A pyranometer simplifies calibrations by enabling ISO 9847 standardized calibration procedures to reduce uncertainties and associated costs. Coupling the MS-80SH Plus+ with an additional pyranometer allows for the determination of further irradiance parameters, such as ground-reflected irradiance and albedo. For applications like monitoring bifacial PV systems and complying with the IEC 61724-1 Class A monitoring standard, where diffuse irradiance measurements require higher accuracy, the system offers an additional operation mode: the Tracking Shadow Band (TSB) mode. In TSB mode, the band actively tracks the sun to provide constant and precise diffuse irradiance measurements. The control unit C-Box includes GPS to accurately determine the sun’s position and adjust the RSB band accordingly. It features RS-485 Modbus RTU output, enabling seamless connection to various devices, such as dataloggers and SCADA systems, for delivering irradiance and sensor diagnostics data. To further complement this solution, EKO has developed Obi, a Windows software for sensor communication and data acquisition.
A practical solution to the increasing diversity of solar power plant locations and Photovoltaic (PV) applications, the MS-80SH Plus+ can easily be deployed. This solution can provide a major benefit in terms of compliance with the updated IEC 61724-1 guidelines, as carrying out both GHI and DHI measurements is a criteria to fulfill the standard best practices when monitoring bifacial photovoltaic modules.
Key Features:
- ISO 9060 Class A pyranometer, spectrally flat, fast response
- GHI, DHI and DNI measurements in one compact solution
- Cost-effective, no sun-tracker required
- Inbuilt GPS for quick, accurate setup
- Easy Modbus Integration with any DAQ system
- Low Power Consumption
*Patent number: E0126AOP0001 (Japan: Patent No. 7160429; Europe: EP3324159A; U.S.: US 11,821,786 B1; China: ZL 2022 8 0004577.2).
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Specifications
| ISO 9060:2018 | Class A |
|---|---|
| Output | Modbus 485 RTU, 4-20 mA, or 0-1 V (100 Ω) |
| Logging values | Irradiance: GHI, DHI, DNI Meta data: T, RH, Tilt, Time, Long, Lat, solar elevation & azimuth |
| Operating temperature range | -20 to 70 °C |
| Wavelength Range | 285 – 3000 nm |
| Power supply | 12 to 24 VDC |
| Power Consumption | <6 W |
| Weight | 4.5 kg |
| Ingress protection | IP65 |
| Standard Cable Length | 10m (Optional lengths 20m, 30m, 50m) |
| Measurement interval | 15s (RSB mode) / 1s (TSB) |
Additional Information
RSB-02 Rotating Shadow Band Specifications
| Tracking modes | RSB / TSB |
| RSB Control Interval | 15s (Interval) |
| Operating temperature range | -20 to 70 °C |
| Power supply | 12 to 24 VDC |
| Power consumption | <5 W (3.5W RSB mode) |
| Weight | 3.5 kg |
| Standard Cable length | 10m (Optional lengths 20m, 30m, 50m) |
MS-80SH Pyranometer Specifications
Based on a revolutionary design, the MS-80SH Pyranometer is best-in-class for accuracy, speed, reliability and is one of the only top tier ‘fast-response’ and ‘spectrally flat’ Class A pyranometers with unprecedented low zero-offset behaviour available.
Featuring a state-of-the-art thermopile detector and Quartz diffusor technology, new internal diagnostics, a unique 4-channel interface, and Level A EMI/EMC electronic surge filter protection, the MS-80SH is IEC 61724-1 compliant and the standout choice for every application.
| ISO 9060:2018 | Class A |
| Response time 95% | < 0.5 Sec |
| Zero offset A – Thermal Radiation (200W/m²) | ± 1W/m² |
| Zero offset B – Temperature change (5K/hr) | ± 1W/m² |
| Zero offset C – Total zero off-set | ± 2W/m² |
| Non-stability (change/year) | < 0.5% / 5 years |
| Non-linearity (100 to 1000W/m²) | ± 0.2% |
| Directional Response (at 1000W/m² | 0 to 80°) | ± 10W/m² |
| Spectral Error | ± 0.2% |
| Temperature Response (-20°C to 50°C) | ± 0.5% |
| Tilt Response (0-90° | 1000W/m²) | ± 0.2% |
| Additional Signal Processing Error | < 1W/m² |
| Technical Features : | |
| Wavelength Range (nm) | 285 to 3000 |
| Irradiance range (W/m²) | 0 to 4000 |
| Signal Output | Modbus 485 RTU / SDI-12 4-20mA / 0-10mA / 0-1V |
| Sensor Diagnostic | Relative Humidity ± 2% Temp. ± 0.1% / Tilt Angle ± 1° |
| Operating temperature | -40 to 80°C |
| Supply voltage | 8 to 30 VDC |
| Power Consumption | < 1.4W |
| Ingress Protection | IP 67 |
| Calibration traceability / uncertainty | ISO 17025 / WRR / < 0.7% (k = 1.96) |
| Standard Cable Length | 10m (Optional lengths 20m, 30m, 50m) |
C-Box-S2 Smart Interface Specifications
Sealed inside an IP65 all-weather case, with GPS receiver, and Modbus 485 RTU output, the C-Box Modbus processing interface enables a range of sensor control and data processing functions.
Working in tandem with the ISO 9060:2018 Class A leading MS-80SH pyranometer, the C-Box, is an essential component of the unique MS-80SH Plus+ trackerless solar monitoring solution, allowing the system to accurately measure DNI, GHI, and to calculate DHI from measurement data and the position of the sun.
| Communication interface | RS-485 Modbus |
| Position and time | Built in GPS |
| Channels | 2 |
| Functions | RSB control, DNI, GHI, DHI processing |
| Ingress protection IP | 65 |
| Operating temperature range | -40 to 80°C |
| Voltage range | 12 – 24 VDC |
| Power consumption | <1 W |