RC22 PV Reference Cell Digital Irradiance Sensor Optimized for Bifacial PV Arrays Smallest in the industry Bifacial ready: Wide dynamic range and cell calibration at 150 & 1000 W/m2 Eliminates excess soiling with glass-to-edge feature Easy mounting on PV front and rear using integrated mounting features Optimized for Bifacial PV Arrays • Size, mounting, electronics, & calibration specifically optimized for both monofacial and bifacial PV Compact Size, Mounts Anywhere • • • Compact size – only 65 mm Multiple integrated mounting features Mounts conveniently on bifacial rear side Accurate at Low and High Irradiance • • • Digital Smart Sensor • • Glass to Edge, No Excess Soiling • Unique glass to edge feature allows water roll-off, eliminating excess soiling vs. conventional cells Robust Mechanical Construction • IP67 anodized aluminum enclosure Accurate measurements on PV front or rear Calibrated at both 150 W2/m and 1000 W2/m Wide dynamic range measurement electronics Digital communication via Modbus over RS485 Internally calibrated measurements: no need to manage calibration constants in loggers or SCADA Connectorized for Easy Installation • • • Industry-standard M12 5-pin circular connector Easy changeout for recalibration Compatible cables with secure over-molded connectors

Main Data Specifications Model name Measurement range Resolution Operating temperature Input power Current consumption PV cell Window Cell temperature measurement Calibration data Baud rate Ingress protection Dimensions Weight Mounting Length options Irradiance calibration Measurement uncertainty Cell temperature Stability Crystalline Si, 20 mm x 20 mm Low-iron solar glass Pt1000 RTD Internally calibrated; no calibration data to manage Optional configuration kit allows PC-based setup Modbus over RS485 (RTU), user-settable address 9600, 19200, 38400, 57600 Anodized aluminum housing IP67 2.56 x...