620 PEM/AEM Water Electrolysis Test Station

SKU: ETS620 Category:

620 Electrolyzer Test System (ETS) – A bench-top, fully-integrated instrument for PEM & AEM Water Electrolysis.

The 620 ETS is a state-of-the-art, full-featured instrument for detailed evaluation and characterization of PEM & AEM water electrolyzers operating with DI water or Alkaline solutions.

The 620 ETS includes an integrated Power Supply, Potentiostat, Impedance Analyzer for EIS & HFR, and real-time sensors for Product Flow Rate and Cross-over Monitoring. The 620 ETS is ideal for labs requiring detailed control, diagnostic and analysis of a single-cell PEM or AEM water electrolysis cell.

Powerful FlowCell-ETS® software offers full control and monitoring of the test cell. Built-in experiments include constant, scanning or step-stair voltage or current controlled measurements.


  • 4 current range Potentiostat ±0.07 / 0.7 / 7 / 20 A, ±5 V, 100 W
  • Programmable Power Supply for operation up to 100 A, 5 V, 500 W
  • Automated switching between Potentiostat and Power Supply mode
  • Mass flow meters for real-time O2 and H2 product flow rate monitoring
  • Independent, dual heated liquid feeds for cell positive and negative electrodes
  • EIS and HFR in Potentiostat mode
  • EIS data compatible with ZView®, the world’s leading impedance analysis & equivalent circuit modelling software
  • Whole cell voltage plus two high-impedance reference electrode inputs for half-cell data
  • FlowCell-ETS® application software for complete system control, experiment sequencing, graphing and data acquisition
  • Integrated back pressure to 2 barg
  • Compatible with DI Water and Alkaline Feed Stocks
  • N2 purge on Cathode with Supplemental N2 on Anode
  • Recirculating or single-pass operating mode
  • Feed tank level balancing and recirculating
  • In-line high-temperature Ion Exchange cartridge to maintain DI water purity
  • Integrated 892 Data Expansion Module for additional 8 temperature + 8 analog inputs, e.g., pressure transducers
  • Safety features: E-Stop, Over Voltage/Current, Over Temperature, Product Gas Cross-Contamination