Cell voltage monitoring and fault identification


Measurement of cell voltages in fuel cells, electrolyzers and batteries for industry and research.

Technical data

Measuring channels: 48 or 96
Measuring range: 0 - 4,5 V
Communication: RS232 or CAN
Measurement error:
(at T = 25 °C)
± 0,1 mV
Measuring interval: Up to 0,1s
Cell connection: 50-pin D-sub connector
Dimensions in mm: (WxHxD) 130x165x40(60)
PDF Datasheet download
Sent request Delivery time: immediate


DiLiCo cell voltage reliably measures the cell voltage of every single cell in the stack. The recorded measurement data are transmitted to your control system via an RS232 or CAN interface. The device has an external power supply (15 - 36 VDC) and a 50-pin D-Sub socket for connecting the cell voltage taps. The measuring system is suitable for all common energy converters and accumulators for cell voltages up to 4.5 V. Use DiLiCo cell voltage to detect faults and unfavorable operating conditions in good time, reducing or avoiding downtime and maintenance costs.


  • DiLiCo cell voltage in metal housing
  • Instructions
  • 15 VDC power supply for external power supply
  • (optional) Cable assembly for connecting the cells to the measuring device
  • (optional) Software for visualization and storage of measurement data


  • Manufacturer of fuel cells, electrolyzers and batteries
  • Test systems, systems in the field test and stationary energy supply
  • Research institutions

Why it makes sense to measure cell voltages in a fuel cell?

  • By a continuous cell voltage monitoring, the failure of a cell and thus also the failure of the system can be avoided.
  • The measurement of the cell voltage in continuous operation is cheaper than the time-consuming search for a defective cell and the costly maintenance.
  • The use of cell voltage monitoring can ensure the quality assurance of the cells during operation and identify systematic errors in cells.
  • Collected information by measuring cell voltages can be used to optimize operations management or the next generation of stacks.