RDE300i PV Module Measurement System
Product Number: 810275-01RDE300i™ is an in‑situ PV module measurement system that delivers real‑time I‑V curves, power output, irradiance, and soiling loss data to accurately assess and optimize solar panel efficiency.
Overview
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Each RDE300i unit measures I-V data, including power (Pmax), current (Isc, Imp), and voltage (Voc, Vmp), on your attached PV module, either standalone or within your PV array.
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For in-situ operation, RDE300i is wired in-line with your PV string and periodically performs I-V sweeps without affecting your inverter, eliminating the need for standalone reference modules.
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Use RDE300i to automatically calculate PV reference module effective irradiance, such as total irradiance for bifacial systems, or to monitor maximum potential system output power.
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By combining multiple RDE300i units and/or additional Atonometrics sensors via the included AUX port, you can automatically calculate PV module soiling ratios and other performance metrics.
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RDE300i is designed to work with a wide range of PV module types, including crystalline or thin-film, bifacial or monofacial. It has a wide input range and can measure up to 30 A, 250 V, and 1500 W. It connects easily to your SCADA system, providing output data by Modbus RTU protocol over RS485.
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Meets IEC 61724-1 requirements for soiling measurement.
Specifications
Technical Attributes
| Model | Inline and Standalone Options |
| Input voltage | 10-30 VDC |
| Power Consumption | 1 W (without AUX peripherals) |
| Operating Temperature Range | -40 °C to 65 °C |
| Accuracy | IEC 60751 Class A |
| Communication | Modbus RTU Protocol |
| Ingress Protection Rating | IP66 |
| Dimensions | 236 mm x 186 mm x 125 mm (9.31” x 7.31” x 4.92”) |
| Standards | IEC 61724-1 Class A |