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MS-713 Spectroradiometer

Make: Eko                                      Model: MS-713
✅ The MS-713 measures the near-infrared (NIR) range from 900nm to 2500nm, comes with NIST traceable calibration, features a temperature-controlled detector core, and is designed to support solar research and applications that require the highest quality data.
✅ Measurand : Near-Infrared (NIR)
✅ Sensor Type : Photodiode Array.
✅ Signal Output : Communication RS422 (between sensor and power supply unit).
✅ Supplied with : Sensor Cable 10m, Ventilation Power Supply Cable 10m ,  Instruction Manual, Factory test/ Calibration Certificates.

MS-713 Spectroradiometer:

A unique all-weather sensor, the MS-713 features a temperature-controlled detector, ensuring optimum performance in hot and cold conditions ranging from -30 to 50 °C. Measuring the near-infrared (NIR) range from 900 nm to 2500 nm, the MS-713 comes with NIST traceable calibration, a calibration uncertainty budget, and is compatible with EKO STR-Series sun trackers.

Designed for Solar research activities which require spectral information measured in a very broad spectral range. Such as ground validation of satellite spectral data or future Solar energy research and resource assessment. The
MS-713 all-weather spectroradiometer in combination with MS-711 extend the range to 2550nm and measure >98% of the integrated solar-terrestrial spectrum.

Temperature changes of the detector inside the spectrometer have a strong effect on the measurement uncertainty. Therefore the sensor unit inside the MS-711 and MS713 main body is accurately controlled at a stable temperature in order to provide the best performance in a wide operating temperature range. The rugged optical design of the diffusor and input optics make the MS spectroradiometer series concept superior to any fiber optic spectroradiometer which will be susceptible to mechanical vibration and handling. The MS spectroradiometer series are designed for permanent installation but are perfectly suited as a traveling reference

The MS-713 is commonly paired with the MS-711 as part of the WISER II system, covering 98% of the integrated solar-terrestrial spectrum, from 300nm to 2500nm. The new generation grating and rugged optical design of the diffusor and input optics in the MS-713 make it superior to any fiber-optic-based spectroradiometer by eliminating common issues with mechanical vibration and handling; it is ideal for permanent installation or as a traveling reference.

The MS-713 has a separate power supply and can be controlled through RS232 or 422 on a PC or data logger. EKO also provides software options for device and data management and visualization. EKO Spectroradiometers deliver top-tier spectral measurements and detail about energy distribution (W/m2/nm), essential for effective PV or CPV cell research and performance analysis.

Application and features of MS-713 Spectroradiometer:



✅ Solar research activities
✅ Satellite spectral data or future Solar energy research
✅ Resource assessment
✅ PV or CPV cell research
✅ Performance analysis
✅ Continuous outdoor measurements
✅ Instant measurement of spectrum 900 nm – 2500 nm
✅ Excellent Long term stability of detector array
✅ Low temperature dependency of detector
✅ Fully controllable by PC and datalogger




General Specification


Wavelength Range

900 – 2550 nm (50% points)

Optical Resolution FWHM

< 20 nm

Wavelength Accuracy

+/- 2 nm

Operating Condition

Operating temperature range : -30 to +50 °C
Power supply operating conditions : -10 to +40°C / 0 to 90 %RH

Field Of View (FOV)

180 °


RS-422 / 232C


7.5 kg, Power supply weight : 1 kg

Power Supply

12VDC, 85VA, Power supply (Power Adapter) : 100-240VAC, 50/60Hz

Power Consumption

90 W

Dimension (mm)

300 (D) x 200 (H), Power supply dimensions (mm) : 320 (W) x 240 (D) x 180 (H)


Analysis software WSDAc


Microsoft Windows 7/8/9/10


Display and analyze data

Temperature Response

< 2 %

Temperature Control

-20 °C

Exposure Time

1 – 40 msec

Dome Material


Protection Level


Cable Length

10 m

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