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MegaEIS™ ME-10S500x20 – High-Current Source & EIS Workstation

The MegaEIS™ ME-10S500x20 is a high-power workstation with an integrated power source, built specifically for electrolyzer stack R&D.

Featuring 10 fully synchronized measuring channels, it enables true parallel testing of industrial short stacks and large-format cells—capturing real-time data on cell uniformity, degradation mechanisms, and efficiency under continuous, heavy loads. Delivering up to 500 A natively, the system provides the stable power required to execute complex, high-current electrolyzer experiments without the need for external boosters.

Technical specifications

Power supply: 110 … 240 V AC / 50 … 60 Hz

Dimensions: Modular design for 19“ rack cabinet

Input voltage: 0 … 20 V

Total input current: Up to 500 A

Max. internal power dissipation: 10 kW

Sampling:

24-bit ADCs, low-noise 50/60 Hz filtered sampling
Up to 1.25 Msps for EIS measurements

Measurement resolution: 0.001% of selected range

Accuracy

Voltage: ≤ 0.1% of range + 0.1% of reading
Current: ≤ 0.1% of range + 0.5% of reading

EIS frequency: 1 mHz ... 100 kHz

EIS amplitude: Up to 20% of maximum internal current for < 1 kHz

2× voltage probe with EIS: Up to ± 20 V

EIS channel voltage range: ± 5 V (max. voltage span over one EVM8 module: 24 V / each 8 channels)

Number of EIS channels: Up to 8+2 (limited by max. voltage)

8 channels per one EVM8 module

Connection: USB 2.0, Ethernet

Software

Control software for MS Windows
Features: measurement setup and control, data acquisition, processing and visualization, Pascal or Python scripting, remote control by TCP/IP server for integration with top-level control system, examples for remote control using Python or LabVIEW.

Use cases

Industrial Short Stack Validation: Test large-format cells under true operational conditions. With up to 500 A from the integrated power source, you can validate cell-to-cell uniformity across 10 channels simultaneously, ensuring balanced voltage distribution in components with industrial-scale active areas.

High-Current Density Stress Testing: Push your stack to its thermal and electrochemical limits. True parallel EIS captures real-time degradation data—such as mass transport limitations or localized hot spots—while continuously driving the stack at 500 A without requiring external boosters.

High-Power Dynamic Load Profiling: Simulate aggressive renewable energy fluctuations natively. Execute automated, high-current load cycling sequences to observe transient responses and optimize thermal management strategies for heavy-duty electrolyzer designs.

MegaEIS™ ME-10S500x20 – High-Current Source & EIS Workstation