We recommend that the SolarSIM sensors are recalibration every two years in order to ensure optimal measurement accuracy. The recalibration process includes optical and thermal calibration procedures. We also routinely replace a recalibrated unit's dessicant.
Optical recalibration is performed on-sun, against our SolarSIM reference units following procedures modified from ISO9847 and ISO9059. Every recalibrated SolarSIM comes with a calibration certificate that is traceable to the World Radiation Reference and includes a description of the calibration procedure.
Please contact us at firstname.lastname@example.org prior to shipping your unit in order to coordinate your recalibration and minimise downtime.