SolarSIM-3C

The SolarSIM-G is a software augmented multi-filter radiometer. It uses filtered photodiodes to make precise, multi-spectral measurements of the solar spectrum in several narrow wavelength bands. These measurements then inform the SolarSIM-G’s software to accurately resolve the complete global solar spectrum and total global irradiance, under all sky conditions.
In addition, the SolarSIM-3C's software contains machine-learned algorithms capable of accurately extracting diffuse and direct irradiance components from the SOlarSIM-3C's multi-spectral measurement data.

The SolarSIM-3C's derives direct and diffuse irradiance data from the its multi-spectral measurement data via machine-learning algorithms that have been trained on millions of data points from locations in Canada, USA and China. These algorithms undergo periodic review and iteration as even more training data becomes available from around the globe.

The core of the SolarSIM-3C software is a proprietary radiative transfer model that uses the SolarSIM-3C's multi-spectral measurements of sunlight, along with its measurements of ambient temperature, pressure and humidity to reconstruct the global solar spectral irradiance over the 280-4000nm range. The subsequent extraction of diffuse and direct irradiance components is enabled by the SolarSIM-3C's machine-learned spectral decomposition algorithms. More information on how the spectral decomposition algorithms work can be found in the SolarSIM-3C download section.

The SolarSIM-3C allows you to do much more than a thermopile pyranometer. As well as providing ISO9060:2018 Class A measurements of global solar irradiance (like a traditional thermopile pyranometer) the SolarSIM-3C also resolves direct and diffuse irradiance data, with no additional hardware required. This makes the SolarSIM-3C a compelling option for when diffuse and/or direct irradiance data is required in addition to GHI.

Yes, we can provide you with a complete turn-key system so you can hit the ground running with your SolarSIM-3C measurements.

The SolarSIM-3C communicates via RS-485 ASCII. As such it can connect to any datalogger that accepts RS-485 or RS-232 inputs. Sections 4 and 6 of the SolarSIM-3C User Manual provides details regarding data logger integration, as do our data logger app notes found in the SolarSIM-3C download section.

All SolarSIM-3C production units undergo electrical, thermal and optical calibration. The optical calibration is performed on-sun against our reference SolarSIM-G sensors The reference sensors are calibrated for absolute irradiance at NREL in Golden Colorado and are traceable to NIST Spectral Irradiance Standard Model FEL lamps.

We recommend recalibration every two years in order to ensure the highest measurement accuracy. Recalibration is performed on-sun, at Spectrafy HQ in Ottawa, Canada. Please contact us prior to shipping your unit in order to ensure the swiftest calibration process possible.

The SolarSIM-3C can be purchased with any or all of its measurement capabilities activated. Additional measurement options can be added at any point in the future via a simple software upgrade. At the same time, users can also choose to have their historical data reprocessed, to include the new measurand(s) from inception.

costs.