Electroflow ETS20 from ONS

Key Features

• Integrated System: A complete, standalone setup for alkaline water electrolysis testing.
• Programmable Operation: Supports both automatic, unmanned tests and manual operation.
• Advanced Data Acquisition: Monitors voltage, current, temperature, and cell compression with CSV data output.
• Safety Features: Includes multiple safety mechanisms such as N₂ purge, product gas dilution, and automatic shutdowns for over-voltage, over-current, over-temperature, and low electrolyte levels.
• Optional Multi-cell Testing: Available with single and multi-cell test fixtures for comprehensive component evaluation.

 

Specifications

• Supported Electrolyte: Potassium hydroxide (KOH), up to 30% (not supplied)
• Operating Pressure: Atmospheric
• Operating Temperature: Up to 95°C (203°F)
• Electrolyte Heater: Thermostatically controlled
• Electrolyte Path: Re-circulating
• Electrolyte Reservoir: 5L with automatic top-up
• Electrolyte Flow Rate: Integrated digital pump control (max 3 L/min) and flow meter
• Product Gas Handling: Condensate separation, N₂ dilution prior to expulsion
• Cell Compression (optional):  N₂ based, up to 5 bar g
• Control Software: Windows 10 or 11 compatible PC (not included)

 

Test and Measurement

• • Power Supply: Integrated, software controlled
  • Current Range: 0-20A, controlled to ± 0.01A
  • Voltage Range: 0-40V, controlled to ± 0.01V
  • Test Regimes: Step/sweep and constant current/voltage
  • Data Acquisition: Current, voltage, temperature, cell compression, and time
  • Cell Voltage Measurement: 5 voltages: ± 0.01V
  • Total Current Measurement: ± 0.01A
  • Temperature Measurement: Stack input and stack outlet, K-Type thermocouple
  • Data Format: CSV

 

Safety Features

• N₂ Purge: Electrolyte reservoir and test fixture
• N₂ Dilution of Anode & Cathode Product Gases: Automatic
• E-Stop Shutdown: Yes
• Electrolyte Level Low Shutdown: Automatic
• H₂Gas Detector Shutdown: Automatic
• Over Voltage/Current Shutdown: Automatic
• Over Temperature Shutdown: Automatic
• N₂ Pressure Low Shutdown: Automatic

 

Interfaces

• Control (to external PC): USB
• Test Cell Electrical Supply: 4mm banana socket (female)
• Electrolyte Inlet and Outlets: 1/4” double ferrule compression fitting (female)
• Cell Compression (N₂): 8mm pneumatic push fitting (female)
• Stack & Cell Voltage Measurement: 4mm banana socket (female)

 

Physical and Environmental

• Dimensions: 1010 x 600 x 1690 mm (39.7 x 23.6 x 66.5 in.) (W x D x H)
• Weight: 85kg (187.3 lb)
• Operating Temperature Range: 5-30°C (41-86°F)
• External Power Supply: 220-240V AC, 50/60 Hz
• N₂ Supply: 5 bar g recommended, 8 bar g maximum
• Cooling Water Supply: Flow rate >3L/min, temperature <10°C

 

Options

• Single Cell Stack: 4.9cm² active area cell, 15.9cm² active area per cell
• Additional Cell: 4.9cm² active area cell, 15.9cm² active area cell
• Cell Voltage Measurement Expansion: Required for > 5 cell voltage measurements
• Customisations Available: Please call