620 PEM/AEM Water Electrolysis Test Station
Product Descriptions
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
• Flow fields with precision machined serpentine or interdigitated flow pattern (custom flow patterns available)
• Gold-plated copper current collectors
• End plates with reactant input/output ports, stainless steel Swagelok® compression fittings, cartridge heaters and thermocouple well
• 60 cm (24 in.) heavy-gauge copper conductor load cables
• Gaskets, gasket templates and additional hardware such as bolts, washers, fittings and O-rings
| Cell Connection | 4-terminal (I+, I-,V+, V-) &differential Aux (REF) |
| Cell Potentiostat: | |
| Full Scale Current Ranges | ±20 / 7 / 0.7 / 0.07 A |
| Current Resolution | 0.007% of range |
| Current Limit of Error | ±1.0% of range |
| Set and Read Voltage vs . WE | > ±5.000 V |
| Cell Voltage Sense Lead | Differential w/ driven shields |
| Voltage Measurement Resolution | 152 µV |
| Sense Lead Input Resistance | 1.0 GΩ |
| Modes of Operation | Constant, Scan, Step-Stair; V and I |
| Cell Power Supply: | |
| Maximum Current | 100 A |
| Voltage Range | 0 – 5.000 V |
| Power | Up to 500 W |
| Impedance Measurement (Potentiostat Mode): | |
| Frequency Range | 1 mHz to 10 kHz |
| Measurement Types | Sweep EIS and single-frequency HFR real-time measurement, Whole Cell and Aux |
| Cell and Electrolyte Handling: | |
| Flow Path | All 316 SS; compatible with DI water and alkaline solutions |
| Liquid Feed Water Reservoir | 2x; 1 L, 316 SS, auto-water fill, conductivity probe |
| Liquid Feed Water Supply Pump | 2x; 50 – 700 mL/min, software controlled |
| Liquid Feed Temperature Range | Ambient to 95°C |
| Ion exchanger / Deionizer | In-line water recycling loop |
| Back Pressure | Dual, 0-2 barg (0-30 PSIG), Manual |
| Cell Temperature Range | Ambient to 120°C |
| Purge Gas | PC-controlled MFC on Negative; Manual on Positive |
| Water/Gas Separator/Dehumidifiers | 2 (Negative, Positive), condensers & collection tanks |
| Product Mass Flow Meters | 2 (1 SLM H2, 0.5 SLM O2) |
