

The RR-1070A reference cell for solar irradiance monitoring is designed for next-generation PV performance analysis. It is more than a sensor; it provides accurate and traceable irradiance data across all photovoltaic technologies. Therefore, researchers, test labs, and PV system operators can rely on consistent and precise measurements.
Every RR-1070A reference cell includes a measured External Quantum Efficiency (EQE) curve. This allows precise spectral mismatch corrections for all PV modules—from silicon to thin-film and emerging technologies. As a result, you can calculate performance ratios (PR) and yield metrics with confidence.
The RR-1070A features a 20 × 20 mm encapsulated crystalline silicon solar cell. Calibrated to the AM1.5G spectrum, it delivers stable and repeatable data. Moreover, its rugged design ensures low maintenance and long-term stability in both laboratory and field conditions.
Integration is straightforward. The RR-1070A connects easily with the EKO M-Box Modbus converter, providing digital output of irradiance and temperature. In addition, its modular design supports EKO pyranometers and PT-1000 temperature sensors. This creates a complete system for comprehensive solar resource measurement and PV performance evaluation.
PV system performance monitoring
PV module testing and certification
Solar simulator calibration
Outdoor irradiance monitoring for yield analysis
High-precision crystalline silicon solar cell
Calibrated to IEC 60904-2 / IEC 60904-4
Integrated 10kΩ NTC sensor
Rugged and weatherproof housing
Plane-of-array (POA) mounting
Long-term stability with minimal maintenance
Ready for SCADA/DAQ integration
Shunted with a 0.2 ppm/°C resistor
Ensure the highest accuracy in your PV performance analysis with the RR-1070A reference cell for solar irradiance monitoring. Contact our team to discuss your requirements or request a quotation.
| ISO 9060:2018 | Class C |
|---|---|
| Response time 95% | < 0.1 Sec |
| Non-stability (change/year) | ± 1.5% |
| Non-linearity (100 to 1000W/m2) | ± 1% |
| Spectral error | ± 5% |
| Temperature response (-20°C to 50°C) | ± 1% |
| Wavelength range (nm) | 400 – 1100 (Mono Crystalline Silicon) |
| Irradiance range (W/m2) | 0 to 2000 |
| Signal output | Analog (~ 65mV @ 1000 W/m2) |
| Logger Operating temperature range | -40 to 80 °C |
| Ingress protection | IP67 |
| Calibration traceability / uncertainty | AM1.5 / 25 °C / 1000 W/m2 |
| Standard cable lenght | Optional lengths 5, 10, 20, 30, 50m |