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Light-intensity measurement system RDE300i™temperaturepowerdirect-contact
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Characteristics
- Measured physical value
- temperature, power, light-intensity
- Technology
- electronic, direct-contact
- Operating mode
- automatic
- Measured material
- for panels, for solar cells
- Configuration
- in-line, online
- Other characteristics
- real-time
Description
Highlights:
Outputs:
Applications:
Additional information available:
Specifications:
- RDE300i provides in‑situ I‑V measurements of PV modules to automatically calculate module performance metrics within an array.
- Each unit records I‑V data including Pmax, Isc, Imp, Voc and Vmp on the attached module, standalone or in‑string.
- Installed inline with the PV string, RDE300i performs periodic I‑V sweeps without affecting inverter operation, eliminating the need for separate reference modules.
- Calculates effective irradiance for PV reference modules (including total irradiance for bifacial systems) and monitors potential system output.
- Multiple RDE300i units and/or additional Atonometrics sensors can be combined via the AUX port to compute soiling ratios and other performance metrics automatically.
- Compatible with a wide range of module types: crystalline, thin‑film, bifacial and monofacial.
- Complies with IEC 61724‑1 for soiling measurement and was awarded PV Magazine Global Best BoS sensor.
- Communications: Modbus RTU over RS485.
Outputs:
- Power, current and voltage (Pmax, Isc, Imp, Voc, Vmp)
- Soiling ratio
- Performance ratio
- I‑V curves
- Temperature (supports Pt1000 adhesive RTD)
Applications:
- Real‑time monitoring of PV module performance and I‑V data inside arrays
- Quantification of soiling losses, including non‑uniform soiling affecting module output
- Measurement of total effective irradiance with bifacial reference modules
- Monitoring module degradation and long‑term performance
Additional information available:
- Data Sheet
- User Guide
- Soiling Measurement Product Configurator
- Additional resources
Specifications:
- Measures I‑V data: Pmax, Isc, Imp, Voc, Vmp
- Measurement capability: up to 30 A, 250 V, 1500 W
- Inline in‑string operation performing periodic I‑V sweeps without affecting inverter operation
- Interfaces: Modbus RTU over RS485
- AUX port for integration with additional sensors and combining multiple units
- Compatible module types: crystalline, thin‑film, bifacial, monofacial
- Compliance: IEC 61724‑1 for soiling measurement
- Outputs include soiling ratio, performance ratio, I‑V curves, temperature and standard electrical parameters
- Supports Pt1000 adhesive RTD temperature sensing
- Can be used to calculate PV reference module effective irradiance (including bifacial total irradiance)
- Awarded PV Magazine Global Best BoS sensor
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Soiling Instruments
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