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MegaEIS™ ME-130L500x200 – High-Current Load & EIS Workstation

The MegaEIS™ ME-130L500x200 is a high-capacity multi-channel load and EIS workstation, engineered specifically for full-scale hydrogen fuel cell stack testing.

Featuring 130 fully synchronized measuring channels, it delivers true parallel EIS data across large-format assemblies without multiplexing delays. Capable of sinking up to 500 A natively and supporting external boosters up to 40 kW for massive power demands, the system provides the robust, high-current loading necessary to validate industrial and automotive fuel cells under aggressive, real-world operating conditions.

Key features

Designed for fuel cell stack research

Stack current up to 500 A

Stack voltage up to 200 V

Inner dissipated power of MegaEIS up to 4 kW

Maximum power with external booster up to 40 kW

EIS measurement one cell gradually or all cells simultaneously

High precision current sensing of both DC and AC components

Technical specifications

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

Dimensions: Modular design for 19“ rack cabinet

Input voltage: 0 … 200 V

Total input current: Up to 500 A

Max. internal power dissipation: 4 kW

Max. supported external power: 40 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 ± 200 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 128+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

Full-Scale Stack Validation: Transition from short stacks to complete industrial systems securely. Monitor cell-to-cell uniformity across up to 130 channels simultaneously, instantly pinpointing localized voltage drops or weak individual cells within large assemblies.

High-Power Drive Cycle Simulation: Replicate heavy-duty automotive or aviation load profiles. Sink up to 500 A natively—or scale up with an external booster for extreme power demands—to evaluate transient stack responses and thermal management strategies during rapid, high-current load changes.

Advanced Water Management Diagnostics: Track specific impedance shifts under heavy, continuous loads. True parallel data acquisition allows you to detect membrane drying, cathode flooding, or mass transport limitations across the entire stack in real time, preventing irreversible damage during high-power operation.

MegaEIS™ ME-130L500x200 – High Current Load & EIS Workstation