The new generation MS-711 is designed to provide accurate and reliable solar spectral data in a rugged, weather-proof package for permanent outdoor installation.

The detector core is calibrated to NIST standards and temperature-controlled to give accurate solar irradiance measurement data within the UV-Visible-NIR spectral range from 300nm to 1100nm.

Analytik delivers solar radiation spectroradiometers to UK and Ireland from EKO Instruments.

We will be happy to work together with you on a solution with the full support of the EKO Instruments team, based in The Netherlands. Visit our contact page, request a quote, or call us on +44 (0)1954 232776.



The MS-711 outdoor solar spectrometer is a unique all-weather spectral sensor with no moving parts to wear out. The detector core is temperature-controlled to provide long-term stability and accurate irradiance measurement data in the 300nm to 1100nm spectral range (UV/Visible/NIR).

Solar spectral irradiance varies as a function of air-mass and composition of the atmosphere, so measuring spectral irradiance is essential to understand the effects of non-uniform spectral energy distribution of the sun. While thermopile pyrheliometers and pyranometers are most suitable to quantify the total DNI or global radiation (W/m2), spectroradiometers give extra detail about the spectral energy distribution (W/m2/nm).

MS-711 is accurately calibrated with traceability to NIST international standards and issued with a calibration uncertainty budget. The rugged design of the optical diffuser and input optics make the MS-711 superior to any fiber optic input spectroradiometer, which are susceptible to mechanical vibration and handling. Eko solar spectroradiometers are designed for permanent installation, but are also suited as a portable reference spectrometer.

MS-711 has a separate power supply unit and is controlled through RS232/422 by a PC or data logger. Included PC software provides functions for operation, data management and data visualization. The open command protocol for defined system control functions allows end users to develop their own software for integration and control

Key Features:

  • Designed for outdoor solar spectral power research
  • Robust weather-proof design, no moving parts, temperature controlled sensor
  • 300nm to 1100nm UV-VIS-NIR measurements
  • High optical resolution <7nm
  • Extended operating temperature range from -10 to 50ºC

Technical Specifications:

Wavelength range 300 to 1100nm
Wavelength interval 0.3 to 0.5nm
Optical resolution FWHM < 7nm
Wavelength accuracy +/- 0.2nm
Cosine Response (Zenith: 0 – 80°) < 5%
Temp. dependency (-10°C to 50°C) < 2%
Temp. control 25°C +/- 2°C
Operating Temperature -10°C to 50°C
Exposure time 10ms – 5s Automatic adjustment
Dome material Synthetic Quartz Glass
Communication RS-422 (Between sensor and power supply)
Power requirement 12V DC, 50VA (from the power supply)
Dimension Diameter 220 mm x Height 197 mm
Weight 4.5 kg
Power Supply
Input AC100-240V, 50/60Hz, 50VA
Output DC12V
Communication RS-232C (Between power supply and PC)
Operating Environment Temperature: -10°C to 40°C
Humidity: 0 to 90% RH
*No condensation
Dimension 320 (W) x 240 (D) x 80 (H)
Weight 1 kg

Request a quote for the MS-711 or call us on +44(0)1954 232 776.


PDF Icon MS-711 Datasheet

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