Pure Water Hydrogen Generator
Benchtop SPE (PEM) hydrogen generator producing >99.999% hydrogen from deionized or distilled water, in 200, 300 and 600 mL/min models, with over-pressure, water-shortage and accumulated-water alarms.
Louise Corscadden, PhD
Director of Science · ConductScience
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Key Specifications
Full details →- Output Flow
- 200 mL/min model: 0–200 mL/min, 300 mL/min model: 0–300 mL/min, 600 mL/min model: 0–600 mL/min
- Output Pressure
- 0.4 MPa; 0.02–0.7 MPa under stable pressure
- Hydrogen Purity
- >99.999%
- Pressure Stability
- <0.001 MPa
- Electrolysis
- SPE (solid polymer electrolyte)
- Water
- Deionized or distilled
The Pure Water Hydrogen Generator produces hydrogen above 99.999% purity by electrolysis of deionized or distilled water, using SPE (solid polymer electrolyte, also called PEM) technology, with no corrosion or contamination. It replaces hydrogen cylinders for all kinds of gas chromatography and other analytical work.
Three models deliver 0–200, 0–300 or 0–600 mL/min at 0.4 MPa (0.02–0.7 MPa under stable pressure), with pressure stability better than 0.001 MPa. Alarms cover over-pressure, water shortage and accumulated water. All three share one 350 × 220 × 380 mm benchtop housing (W × D × H), run on AC 110 V or 220 V ±10%, 50/60 Hz, and draw 120, 150 or 300 W.
This listing is sold by quote: tell us the flow you need when you request one.
How It Works
The system employs proton exchange membrane (PEM) electrolysis to split water molecules into hydrogen and oxygen gases. When electrical current passes through the PEM cell, water molecules at the anode are oxidized to produce oxygen, protons, and electrons. The protons migrate through the selective membrane while electrons travel through the external circuit.
At the cathode, protons and electrons recombine to form pure hydrogen gas. The PEM technology ensures high gas purity by preventing crossover contamination between the hydrogen and oxygen chambers. Internal pressure regulation and flow control systems maintain consistent output conditions.
Water purification requirements are critical for optimal performance, as ionic impurities can affect membrane efficiency and gas purity. The system continuously monitors operational parameters to maintain stable hydrogen production rates and quality.
Features & Benefits
Research record
Use these values in methods sections and data records.
- Device type
- Hydrogen generator
OBI:0000608
This ID comes from the Ontology for Biomedical Investigations (OBI).
Download the source data for this record as a JSON-LD file
Methods section wording
hydrogen generator (ConductScience, Skokie, IL, USA; cat. no. BIO-0741)
Output Flow
- 200 mL/min model: 0–200 mL/min
- 300 mL/min model: 0–300 mL/min
- 600 mL/min model: 0–600 mL/min
Output Pressure
- 0.4 MPa; 0.02–0.7 MPa under stable pressure
Hydrogen Purity
- >99.999%
Pressure Stability
- <0.001 MPa
Electrolysis
- SPE (solid polymer electrolyte)
Water
- Deionized or distilled
Power Consumption
- 200 mL/min: 120 W
- 300 mL/min: 150 W
- 600 mL/min: 300 W
Power Supply
- AC 110 V / 220 V ±10%, 50/60 Hz
External Size (W × D × H)
- 350 × 220 × 380 mm
Packing Size (W × D × H)
- 500 × 370 × 540 mm
Net Weight
- 200 and 300 mL/min: 11 kg
- 600 mL/min: 13 kg
Gross Weight
- 200 and 300 mL/min: 12 kg
- 600 mL/min: 14 kg
Alarms
- Over-pressure
- Water shortage
- Accumulated water
Automation Level
- semi-automated
Research Domain
- Analytical Chemistry
- Environmental Monitoring
- Food Science
- Materials Science
- Pharmaceutical QC
Shipping weight
- 30.86 lb
Shipping box
- L: 50 cm
- W: 37 cm
- H: 54 cm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Footprint | 350 × 220 × 380 mm (W × D × H) benchtop housing | Larger systems often require floor mounting or dedicated bench space | Compact design preserves valuable laboratory bench real estate for other instrumentation |
| Weight | 11 kg net (13 kg for the 600 mL/min model) | Comparable systems range from 15-25 kg | Lower weight facilitates installation and potential relocation within the laboratory |
| Gas Source | Water electrolysis technology | Some systems use chemical reforming or metal hydride storage | Water-based generation eliminates chemical consumables and reduces operational complexity |
| Installation Requirements | Benchtop installation with water and electrical connections | Larger systems may require dedicated utilities or ventilation modifications | Simplified installation reduces setup time and infrastructure requirements |
This generator provides a compact, water-based hydrogen source suitable for standard laboratory environments. The benchtop design and moderate weight facilitate installation while PEM technology offers reliable gas generation from readily available consumables.
Practical Tips
Fill the generator only with deionized or distilled water.
Why: Water quality directly affects membrane life and hydrogen purity output.
Allow system to reach thermal equilibrium before connecting to analytical instruments.
Why: Temperature stability ensures consistent gas flow and pressure for reliable analytical results.
Install hydrogen detection monitors in enclosed spaces and ensure adequate ventilation.
Why: Hydrogen gas accumulation poses explosion risks in poorly ventilated areas.
Verify output flow rate and pressure periodically using calibrated flow meters.
Why: Performance verification ensures analytical instrument requirements are consistently met.
Check water supply and electrical connections if gas output pressure drops unexpectedly.
Why: Insufficient water or power supply commonly causes reduced performance.
Purge gas lines thoroughly after extended shutdown periods before analytical use.
Why: Line purging removes air contamination that could affect analytical measurements.
Setup Guide
What’s in the Box
- Pure Water Hydrogen Generator main unit
- Power cord (typical)
- Water inlet tubing (typical)
- Hydrogen outlet fittings (typical)
- User manual and safety documentation (typical)
- Warranty registration materials (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering defects in materials and workmanship, with technical support available for installation and operational guidance.
Compliance
What water purity requirements are necessary for optimal operation?
Use deionized or distilled water. Lower-quality water can shorten membrane life and reduce gas quality.
How does hydrogen purity compare to compressed cylinder gas?
Hydrogen purity is above 99.999%, suitable for all kinds of gas chromatography. PEM electrolysis typically produces hydrogen with minimal hydrocarbon contamination compared to some cylinder sources.
What maintenance procedures are required for continued operation?
Routine maintenance includes water quality monitoring, periodic membrane inspection, and system performance verification. Detailed maintenance schedules are provided in the user manual.
Can the generator supply multiple analytical instruments simultaneously?
Yes, if their combined demand stays within the model's output (200, 300 or 600 mL/min) at the pressure they need. Use a gas splitting manifold for multiple connections.
What safety features protect against hydrogen accumulation?
Alarms for over-pressure, water shortage and accumulated water. Proper ventilation and gas monitoring are recommended for safe laboratory operation.
How quickly does the system reach stable hydrogen output after startup?
Startup time varies with system design and operating conditions. Consult specifications for warm-up time requirements before analytical use.
What power requirements are needed for installation?
AC 110 V or 220 V ±10%, 50/60 Hz. The 200, 300 and 600 mL/min models draw 120 W, 150 W and 300 W.
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