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MegaEIS™
ME-42SL420x200
Bi-Directional Workstation
for Fuel Cells, Electrolyzers & Batteries
The MegaEIS™ ME-42SL420x200 is a highly versatile, bi-directional workstation engineered for advanced testing of fuel cells, electrolyzers, and battery modules. Featuring a combined source/load architecture, it handles up to 420 A and 200 V with a maximum power capacity of 30 kW.
With 42 fully synchronized measuring channels, the system delivers true parallel EIS data across the entire assembly. This enables continuous charge and discharge cycling without switching hardware, capturing real-time impedance shifts even under aggressive dynamic loads.
Kolibrik MegaEIS System Introduciton
See Unboxing, introduction to features, and practical live measurement demonstration of MegaEIS System.
Key Features
- Designed for advanced fuel cell stack, electrolyzer, and battery module R&D
- Bi-directional source/load architecture for continuous charge/discharge cycling
- Stack current up to ±420 A
- Stack voltage up to 200 V
- Maximum power capacity up to 30 kW
- EIS measurement one cell gradually or all cells simultaneously
- High-precision current sensing of both DC and AC components
Deployment Scenarios
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Dynamic Battery Module Cycling: Execute aggressive charge/discharge profiles on Li-ion or redox-flow battery modules. True parallel EIS captures state-of-health (SoH) variations across all 42 cells simultaneously during active operation, eliminating multiplexing delays and the need for manual probe reconnection.
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Reversible Fuel Cell (rSOC) Validation: Seamlessly test solid oxide or other fuel cell stacks (PEMFC, AFC, MCFC, PAFC). The bi-directional architecture allows you to run continuous cyclic profiles, capturing real-time impedance shifts to identify degradation mechanisms under alternating power generation and electrolysis loads.
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High-Current Transient Diagnostics: Measure both AC and DC currents with absolute accuracy during extreme 420 A power surges. By utilizing a unique low-impedance current sensor placed in series with the external booster, the system eliminates parasitic effects, delivering clean, precise data with 0.1% accuracy at 1.25 Msps.
Technical Parameters
| Power supply | 110 … 240 V AC / 50 … 60 Hz |
| Dimensions | Modular deign for 19“ rack cabinet |
| Protection rating | IP20 |
| Input voltage | 0 … 200 V |
| Total input current Total input current (internal + external load) |
Up to 200 A |
| Internal load current | 0 … 200 A |
| Max. internal power dissipation | 40 kW |
| Cooling | Water |
| 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 |
| Acquitions methods | Constant V, I, Open circuit, Manual control, Chronoamperometry, Chronopotentiometry, Linear sweeps, Polarization curves, Current interruption, Load cycling/profiling, EIS – electrochemical impedance spectroscopy, Programmable sequences of all available methods |
| 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 40+2 (limited by max. voltage) 8 channels per one 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. |
If these variants do not suit you, please contact us, we offer customized solutions!
Documentation
Software
To run your experiments, you’ll use the application CVM Manager – our measurement and control app that manages everything from workstation setup to real-time data acquisition and visualization. Just connect the MegaEIS System, choose your method, and let the science begin.
High-Power Fuel Cell & Electrolyzer Testing
Want to learn more about the solution, use cases, and references related to fuel-cell or electrolyzer testing? In our portfolio we have a solution for all scenarios including SOFC, etc.
High-Power Battery & Packs Testing
Want to learn more about the solution, use cases, and references related to battery-oriented testing? In our portfolio we have a solution for any type of batteries including redox-flow, etc.