Nitrogen & Hydrogen & Air Generator
Multi-gas benchtop generator producing nitrogen (>99.997%, 0–300 mL/min), hydrogen (>99.999%, 0–300 mL/min), and compressed air on-demand for analytical instrumentation.
Eliminates cylinder dependency with 0–0.5 MPa output pressure.
Louise Corscadden, PhD
Director of Science · ConductScience
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Key Specifications
Full details →- Output Flow
- Nitrogen: 0–300 mL/min, Hydrogen: 0–300 mL/min
- Output Pressure
- Nitrogen, hydrogen and air: 0–0.5 MPa (factory setting 0.4 MPa)
- Purity
- Nitrogen: >99.997%, Hydrogen: >99.999%
- Air Compressor
- Oil-free (780 W version), Oil-lubricated (450 W version)
- Power Consumption
- 780 W with the oil-free compressor, 450 W with the oil-lubricated compressor
- Power Supply
- AC 220 V ±10%, 50 Hz ±5% (standard), AC 110 V, 60 Hz (optional)
The Nitrogen, Hydrogen & Air Generator is a multi-gas generation system that produces three essential laboratory gases on-demand, eliminating the need for compressed gas cylinders. Designed for gas chromatography and other analytical instrumentation, this benchtop unit combines electrolytic hydrogen and nitrogen generation, a compressed-air section and a stainless steel gas storage tank in a single compact cabinet.
Gas Output Specifications
- Nitrogen flow rate: 0–300 mL/min
- Nitrogen purity: >99.997%
- Hydrogen flow rate: 0–300 mL/min
- Hydrogen purity: >99.999%
- Output pressure (all gases): 0–0.5 MPa (factory setting 0.4 MPa)
Electrical & Physical
- Air compressor and power consumption: oil-free compressor, 780 W; or oil-lubricated compressor, 450 W
- Power supply: AC 220 V ± 10%, 50 Hz ± 5% (standard); AC 110 V, 60 Hz (optional)
- Instrument dimensions: 480 × 315 × 685 mm (W × D × H)
- Package dimensions: 550 × 405 × 770 mm (W × D × H)
- Gross weight (packed): 48.2 kg
- Operating environment: 0–35 °C, ≤85% relative humidity, no large amounts of dust or corrosive gas
How It Works
The nitrogen and hydrogen sections each have an electrolytic cell with automatic anti-return of the alkali, automatic flow tracking and three-stage filtration. Both gases are delivered at 0–300 mL/min, with nitrogen above 99.997% and hydrogen above 99.999% purity.
The air section feeds a stainless steel air receiver from a compressor, oil-free or oil-lubricated depending on the version, with two-stage pressure regulation. A stainless steel gas storage tank replaces laboratory cylinders, and high-precision three-stage filtration, automatic drainage and protective measures keep the outputs clean. All three gases leave at 0–0.5 MPa (factory setting 0.4 MPa).
Features & Benefits
Research record
Use these values in methods sections and data records.
- Device type
- Gas generator
OBI:0000507
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
gas generator (ConductScience, Skokie, IL, USA; cat. no. BIO-0744)
Output Flow
- Nitrogen: 0–300 mL/min
- Hydrogen: 0–300 mL/min
Output Pressure
- Nitrogen, hydrogen and air: 0–0.5 MPa (factory setting 0.4 MPa)
Purity
- Nitrogen: >99.997%
- Hydrogen: >99.999%
Air Compressor
- Oil-free (780 W version)
- Oil-lubricated (450 W version)
Power Consumption
- 780 W with the oil-free compressor
- 450 W with the oil-lubricated compressor
Power Supply
- AC 220 V ±10%, 50 Hz ±5% (standard)
- AC 110 V, 60 Hz (optional)
Operating Temperature
- 0–35 °C
Operating Humidity
- ≤85%, no large amounts of dust or corrosive gas
Instrument Size (W × D × H)
- 480 × 315 × 685 mm
Packing Size (W × D × H)
- 550 × 405 × 770 mm
Gross Weight
- 48.2 kg
Gas Storage
- Stainless steel gas storage tank
- Stainless steel air receiver with two-stage pressure regulation
Filtration
- Three-stage filtration with automatic drainage
Automation Level
- semi-automated
Research Domain
- Analytical Chemistry
- Clinical Diagnostics
- Environmental Monitoring
- Food Science
- Materials Science
- Pharmaceutical QC
Shipping weight
- 106.26 lb
Shipping box
- L: 55 cm
- W: 40.5 cm
- H: 77 cm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Gas Stream Variety | Generates nitrogen, hydrogen, and compressed air from single unit | Many systems provide only single gas type or require separate generators | Reduces equipment footprint and simplifies gas supply infrastructure for multi-technique laboratories |
| Benchtop Form Factor | Compact 480 × 315 × 685 mm (W × D × H) cabinet | Larger systems often require floor installation or multiple units | Maximizes valuable laboratory bench space while maintaining gas generation capacity |
| Weight and Portability | 48.2 kg packed (gross weight) for benchtop installation | Floor units typically weigh significantly more | Enables flexible placement and potential relocation as laboratory needs change |
| Multi-Gas Integration | Three independent gas streams with integrated controls | Separate generators require individual monitoring and maintenance | Simplifies operation and maintenance protocols while reducing training requirements |
This generator combines three essential laboratory gases in a compact benchtop design, providing space-efficient gas generation for analytical laboratories. The integrated approach reduces complexity compared to multiple single-gas units while maintaining independent control of each gas stream.
Practical Tips
Verify gas purity using independent analytical methods during initial setup and after any maintenance procedures.
Why: Ensures gas quality meets analytical requirements and validates system performance.
Monitor water level in hydrogen generation reservoir daily and use only deionized water for refilling.
Why: Maintains electrolysis efficiency and prevents contamination that could affect hydrogen purity.
Install pressure relief valves and leak detection systems on all gas distribution lines.
Why: Provides safety protection and early warning of system integrity issues.
If gas purity degrades, check the filtration stages and the compressed-air section first.
Why: These components most commonly affect gas quality and are often user-serviceable.
Allow adequate warm-up time after power cycling before connecting to analytical instruments.
Why: Ensures stable gas composition and pressure before critical analyses begin.
Install hydrogen leak detectors in areas where the generator operates, particularly near electrical equipment.
Why: Hydrogen has wide flammability limits and requires early detection to prevent safety hazards.
Keep spare filtration elements on hand for scheduled replacements.
Why: Minimizes system downtime and maintains consistent gas quality throughout operational life.
Setup Guide
What’s in the Box
- Nitrogen, Hydrogen & Air Generator main unit
- Power cord (typical)
- Gas output fittings and connectors (typical)
- Water reservoir and filling accessories (typical)
- User manual and installation guide (typical)
- Startup documentation (typical)
Warranty
ConductScience provides comprehensive warranty coverage including technical support for installation, operation, and maintenance guidance. Standard coverage includes manufacturer warranty with access to replacement parts and service documentation.
Compliance
What purity levels can be expected from each gas stream?
Nitrogen purity is above 99.997% and hydrogen purity above 99.999%. The compressed-air section has three-stage filtration and automatic drainage.
Can the system supply multiple instruments simultaneously?
Yes, the generator can supply multiple instruments through appropriate gas distribution manifolds, though total flow capacity must not exceed system specifications. Individual pressure regulation may be required for each instrument.
What maintenance is required for continuous operation?
Routine maintenance includes refilling the reservoirs and periodic filter replacement; condensate drains automatically. Specific intervals depend on operating conditions and usage patterns.
How does this compare to cylinder gas supply in terms of cost?
On-demand generation eliminates cylinder rental, delivery, and changeover costs while providing continuous supply. Operating costs include electricity and consumables, with break-even typically achieved within months of installation.
What power requirements are needed for installation?
AC 220 V ±10%, 50 Hz ±5% as standard, or AC 110 V, 60 Hz as an option. The unit draws 780 W with the oil-free compressor or 450 W with the oil-lubricated compressor.
Can gas quality be monitored during operation?
The system may include basic monitoring indicators, though external gas analyzers are recommended for critical applications requiring documented purity verification. Real-time monitoring capabilities should be confirmed in product specifications.
What is the startup time from power-on to stable gas delivery?
Initial startup requires electrolysis cell stabilization. Typical startup to stable operation ranges from minutes to hours depending on environmental conditions.
What purity levels does each gas stream achieve?
The nitrogen stream reaches >99.997% purity and the hydrogen stream >99.999%, both by electrolysis. Both meet the requirements for most gas chromatography applications.
What are the maximum flow rates for nitrogen and hydrogen?
Both nitrogen and hydrogen are generated at 0–300 mL/min. The output pressure for all gas streams is adjustable from 0 to 0.5 MPa, with a factory default of 0.4 MPa.
What power supply does the generator require?
Standard configuration is AC 220 V ± 10%, 50 Hz ± 5%. An AC 110 V, 60 Hz option is available for North American laboratories. The unit draws 780 W with the oil-free compressor or 450 W with the oil-lubricated compressor.
How does on-site generation compare to cylinder gas supply?
On-demand generation eliminates cylinder rental, delivery scheduling, and changeover downtime. The unit produces all three gases from a single 480 × 315 × 685 mm cabinet. Operating costs are limited to electricity and consumables such as distilled water.
What is the maximum output pressure of the N2 and H2 generators?
The maximum output pressure is 0.5 MPa (5 bar). These generators are designed for standard laboratory applications and are not suitable for applications requiring outlet pressures above 5 bar.
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