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MS-711 Spectroradiometer

Make: Eko                                      Model: MS-711
✅ The MS-711 is a unique all-weather sensor with a temperature-controlled detector core, providing accurate irradiance measurement data within the 300nm to 1100nm (UV-Visible-NIR) spectral range.
✅ Measurand: Solar Irradiance.
✅ Sensor Type: Photodiode Array.
✅ Signal Output: Communication RS-422 / 232C.
✅ Supplied With: 10 m cable, Factory test/ Calibration Certificates.

MS-711 Spectroradiometer:

A spectroradiometer is a device that measures the spectral radiant power of a light source. The MS-711 Spectroradiometer, manufactured by the company Ocean Optics, is a high-performance, portable spectroradiometer designed for a wide range of applications.

One of the key features of the MS-711 Spectroradiometer is its high resolution and wide dynamic range. It has a resolution and a dynamic range of greater than 6 orders of magnitude, which enables it to measure very weak signals and strong signals with a high degree of accuracy. Additionally, it is equipped with a back-thinned, deep-depletion CCD detector, which provides excellent sensitivity and low noise.

The MS-711 Spectroradiometer is also highly versatile and can be used in a wide range of applications, including color measurement, fluorescence, reflectance, and transmittance. It is equipped with a range of accessories, including a variety of optical fibers and sampling optics, which allow it to be configured for different measurement tasks.

It has a USB interface which allows for easy data transfer, and it’s also comes with software that allows users to control the spectrometer, acquire data, and perform data analysis.

The device is small and portable, allowing it to be used in a wide range of environments, from the lab to the field. Its compact design, durable construction, and long battery life make it ideal for use in remote locations or in conditions where power is limited.

Overall, the MS-711 Spectroradiometer is a powerful, versatile, and portable device that is well-suited for a wide range of applications. It provides high-resolution, wide dynamic range measurements with low noise, making it an ideal tool for a variety of scientific and industrial applications.

A unique all-weather sensor, the MS-711 features a temperature-controlled detector, ensuring optimum performance in hot and cold conditions ranging from -10 to +50 °C. The MS-711 has NIST traceable calibration, and a calibration uncertainty budget, and is compatible with EKO STR-Series sun trackers, measuring the spectral range from 300nm to 1100nm (UV-Visible-NIR).

The MS-711 can be set up in an albedometer configuration for measuring spectral albedo in bifacial PV installations and is part of both the WISER I system, covering the spectral range from 300nm to 1700nm (UV-VIS-NIR), and 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-711 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-711 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-711 Spectroradiometer:



✅ PV or CPV cell research
✅ Performance analysis
✅ Solar spectral data outdoors
✅ Reference for spectral measurements UV-VIS-NIR
✅ High optical resolution <7nm
✅ Operating temperature range -10 to 50°C
✅ Made for outdoor solar research
✅ Suitable for spectral albedo measurements




General Specification


Wavelength Range

300 – 1100 nm (50% points)

Optical Resolution FWHM

< 7 nm

Wavelength Accuracy

+/- 0.2 nm

Operating Condition

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

Field of View FOV

180 °


RS-422 / 232C


4.5 kg, Power supply weight : 1 kg

Power Supply

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

Power Consumption

50 W

Dimensions (mm)

220 (D) x 197 (H), Power supply dimension (mm) : 320 (W) x 240 (D) x 80 (H)


Analysis software WSDAc


Microsoft Windows 7/8/9/10


Display and analyze data

Temperature Response

< 2 %

Temperature Control

25 °C

Exposure Time

10 – 5000 msec

Dome Material


Protection Level


Cable Length

10 m

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