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How it works
MS-20
Pyrgeometer
WISG traceable calibration
More accurate and lower cost than competing ‘budget’ sensors, the MS-20 is designed to capture downward atmospheric longwave radiation from 4.5μm to 42μm, and can measure the net radiation between the earth and the atmosphere by using two MS-20 upward and downward facing, with a specially coated silicon window to block solar radiation wavelengths below 4.5μm.
MS-20
The MS-20 Pyrgeometer is built for research, agricultural and architectural field applications.
More accurate and lower cost than competing ‘budget’ sensors, the MS-20 is designed to capture downward atmospheric longwave radiation from 4.5μm to 42μm, and can measure the net radiation between the earth and the atmosphere by using two MS-20 upward and downward facing, with a specially coated silicon window to block solar radiation wavelengths below 4.5μm.
Based on EKO’s universal sensor design, the MS-20 is robust, weather-proofed and compatible with the MV-01 Ventilator & Heater perfect for for continuous outdoor measurement, whatever the conditions.
Available in two variants; the MS-20T with a high grade Japanese Industrial Standard (JISC1611) thermistor and the MS-20P with a PT-100/3W IEC60751 Class A Industrial platinum resistance thermometer; each unit comes with a 5-year warranty and World Infrared Standard Group (WISG) traceable calibration assuring top-quality performance and reliability for every application.
Key Features:
- Low Temperature Dependency, Excellent Stability
- WISG Traceability
- Competition-busting Low Window Heating Offset
- Higher Accuracy, Lower Cost vs. Competing Sensors
- EKO Universal Sensor Design
- 5-year Warranty & EKO Quality Guarantee
Accessories
Frequently Paired Together
| ISO 9060:2018 | |
|---|---|
| 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 | |
| Weight | 4.5 kg |
| Ingress protection | IP65 |
| Standard Cable Length | 10m (Optional lengths 20m, 30m, 50m) |
| Measurement interval | 15s (RSB mode) / 1s (TSB) |
| Component specification | MS-80SH Pyranometer |
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 |