Modbus solar reference cell RC22
RS485Modbus RTUwith temperature sensor

Modbus solar reference cell - RC22 - Kipp & Zonen - RS485 / Modbus RTU / with temperature sensor
Modbus solar reference cell - RC22 - Kipp & Zonen - RS485 / Modbus RTU / with temperature sensor
Modbus solar reference cell - RC22 - Kipp & Zonen - RS485 / Modbus RTU / with temperature sensor - image - 2
Modbus solar reference cell - RC22 - Kipp & Zonen - RS485 / Modbus RTU / with temperature sensor - image - 3
Modbus solar reference cell - RC22 - Kipp & Zonen - RS485 / Modbus RTU / with temperature sensor - image - 4
Modbus solar reference cell - RC22 - Kipp & Zonen - RS485 / Modbus RTU / with temperature sensor - image - 5
Modbus solar reference cell - RC22 - Kipp & Zonen - RS485 / Modbus RTU / with temperature sensor - image - 6
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Characteristics

Output signal
Modbus RTU, RS485, Modbus
Other characteristics
with temperature sensor, for photovoltaic systems, for meteorological data

Description

Highlights:
  • RC22 is the first PV reference cell specifically optimized for both bifacial and monofacial PV systems.
  • The ultra-compact design allows easy mounting anywhere, including the rear side of bifacial arrays.
  • Wide dynamic range, ultra-low zero offset, and dual calibration at 1000 W/m² (STC) and 135 W/m² (BSTC) provide accurate measurements across irradiances typical of bifacial systems.
  • The RC22’s glass-to-edge surface design reduces soiling compared with conventional reference cells.
  • Integrated features support multiple mounting configurations for weather and meteorological stations.
  • Communicates via Modbus RTU over RS485.


Outputs:
  • Irradiance
  • Cell short-circuit current
  • Cell temperature


Applications:
  • High-accuracy solar irradiance measurement for monofacial and bifacial PV systems
  • Irradiance monitoring to support operations and maintenance (performance ratio)
  • Characterization of rear-side irradiance uniformity in bifacial arrays
  • Solar resource assessment and prospecting at pre-construction sites


Technical specifications:
  • Model: RC22 PV reference cell
  • Optimized for bifacial and monofacial PV systems
  • Ultra-compact form factor suitable for rear-side mounting of bifacial arrays
  • Wide dynamic range with ultra-low zero offset
  • Dual calibration levels: 1000 W/m² (STC) and 135 W/m² (BSTC)
  • Glass-to-edge surface design to reduce soiling accumulation
  • Supports multiple mounting configurations for meteorological stations
  • Communication: Modbus RTU over RS485
  • Measured outputs: irradiance, cell short-circuit current, cell temperature

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