The spectroradiometer for solar spectral research, the combination of MS-711 and MS-712 called WISER is the reference in the market and designed to provide the most accurate solar spectral data outdoors.
The spectroradiometer are unique all weather concept spectroradiometers with no moving parts and temperature controlled spectrometers. It can be used stand alone, but in combination it covers the spectral range from 300nm to 1700nm.
It measures in the range from 300nm and 1100nm, and MS-712 covers the near-infrared (NIR) range between 900nm and 1700nm. Both spectroradiometers are accurately calibrated with trace ability to the International Standards and issued with a calibration uncertainty budget.
Temperature changes of the detector inside the spectrometer have a strong effect on the measurement uncertainty. Therefore the sensor unit inside is the main body which 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 are perfectly suited as a traveling reference.
Both spectroradiometers have a separate power supply and can be controlled through RS232 / 422 by a PC or data logger. The PC software provide different functions for operating, data management visualisation. Software can also be customized to the individual user purpose by making use of the existing system control functions through the open command protocol.
Measuring spectral irradiance is a must to understand the effect of the non-uniform energy distribution of the sun. Since the solar spectrum varies as a function of air-mass and composition of the atmosphere, the MS-711 reveals those details. While thermopile pyrheliometer and pyranometer are most suitable to quantify the total DNI or global radiation (W/m2), spectroradiometers give detail about the energy distribution (W/m2/nm), which is most important for PV or CPV cell research and performance analysis.
Features
- Continuous outdoor measurements
- Instant measurement of full spectrum 300 nm – 1700 nm
- Excellent Long term stability of detector array
- Low temperature dependency of detector
- Fully controllable by PC and data logger
- High quality calibration and NIST traceable