Electric test system E500

for electrolyserson siteautomatic

Product overview
The E500 Series is a high-precision test platform designed for single-cell electrolyzer and material-level evaluation (PEM/ALK/AEM). The system supports a maximum back pressure of 4 MPa and integrates circulation, N2 purge, pressure regulation, gas–liquid separation, gas analysis preconditioning, PLC data acquisition and control, HMI operation and safety monitoring. Built-in test software supports polarization curves, electrochemical tests, online H2 concentration monitoring, sensitivity and durability tests, hydrogen production energy efficiency and product life testing.

Main components & functions
Circulation loop, nitrogen purge unit, pressure regulation unit, gas–liquid separator, gas analysis preconditioning, PLC data acquisition and control, human–machine interface and safety monitoring.

Electrochemical testing capabilities

• Integration of EIS (electrochemical impedance spectroscopy), CV and other electrochemical methods.
• Direct EIS testing without an external potentiostat; supports EIS under DC conditions up to 200 A (compatible with 10% EIS test scenarios).
• Online HFR (high-frequency resistance) measurement.
• Online interrupted-current internal resistance testing.

Operation & automation
Supports 24-hour unattended operation with script compilation, step import and one-click start/stop. Proprietary test software enables automated test sequences and centralized data acquisition.

Fixtures & test accessories
The system includes multiple single-cell fixture sizes (5 cm², 16 cm², 25 cm², 50 cm²) and supports a range of optional peripherals such as O2/gas flow measurement modules and electrochemical test modules.

Optional functions / peripherals

• Oxygen / gas flow measurement modules
• Electrochemical test modules (EIS, CV, etc.)
• Electrolyzer single-cell fixtures

Testing standards & reliability
Designed to meet electrolyzer testing requirements such as those recommended by EU JRC. The system emphasizes measurement accuracy and repeatability for R&D and product validation.

Features / technical specifications

• Target specimens: PEM / ALK / AEM single cells and material-level tests
• Maximum back pressure: 4 MPa (automatic back-pressure control)
• Circulation flow accuracy: 1% F.S.
• Temperature accuracy: ±1 °C
• Conductivity detection accuracy: ≤ 0.5 μS/cm
• Gas flow accuracy: ±(0.8% Rdg + 0.2% F.S.)
• Support for 24-hour unattended operation (script compilation, step import, one-click start/stop)
• Fixture sizes: 5 cm², 16 cm², 25 cm², 50 cm²
• Electrochemical integration: supports EIS / CV and related tests
• EIS capability: EIS under DC conditions up to 200 A (supports 10% EIS scenarios)
• Online testing: supports online HFR and interrupted-current internal resistance measurements