NM Plus | Ultrapure hydrogen gas generators with up to 99.99996% purity (NM Plus Series)

Key Features

  • Maintenance-free purification system generates carrier grade hydrogen gas to 99.99996% purity
  • Flow rate options from 100 mL/min - 1350 mL/min (please see below)
  • No pipeline or bottle changing requirements 
  • No acid or alkaline solutions used in the hydrogen generation cycle
  • Improved chromatographic results. Use of hydrogen as a carrier gas allows lower temperature elution and extended chromatograph column life.
  • Advanced software control and safety alarm systems protect personnel. Limited internal volume (<50 mL) provides safer operating conditions compared to cylinders.
  • Up to 32 units can be linked together for high volume output
  • Automatic flow compensation
  • Continuous operation for critical applications


The NM Plus series of hydrogen gas generators produce carrier grade gas of 99.99996% purity for gas chromatography and other critical applications. The use of hydrogen as a carrier gas for gas chromatography provides more rapid separations than with other gases and with a minimum loss in chromatographic efficiency.

The NM Plus series produce hydrogen by forcing distilled or deionised water through an advanced Swiss-made titanium electrolytic cell. Electrolytic dissociation separates the water into its two main components: hydrogen ready for analytical use and oxygen that is released into the air. No acid or  alkaline solutions are used in the hydrogen generation cycle and the patented automatic drying system ensures the maximum level of hydrogen purity.

Safety is a major concern when using hydrogen so substituting the NM Plus for bottle or pipeline sources significantly increases the protection level. Advanced software control and safety alarm systems also protect personnel and a limited internal volume (<50 mL) provides safer operating conditions compared to gas cylinders.

The NM Plus series integrate systems for automatic flow compensation and continuous operation for critical applications. Up to 32 units can be linked together for facilities requiring high volume output.

Instrument Configurations

Model NumberHydrogen Flow RateHydrogen Purity (%)
NMH2-100 Plus
100 mL/min99.99996
NMH2-160 Plus
160 mL/min
NMH2-250 Plus
250 mL/min
NMH2-300 Plus
300 mL/min
NMH2-500 Plus
500 mL/min
NMH2-600 Plus
600 mL/min
NMH2-1000 Plus
1000 mL/min
NMH2-1350 Plus
1350 mL/min


Model seriesNM Plus
Flow rate options
100 mL/min - 1350 ml/min
Touch screen displaying operating parameters, system status and alarms
LED indicators
Power ON/OFF, system ready and errors
Polymer electrolyte membrane
Cold dual dynamic regeneration system
Maximum outlet pressure
11 bar (160 psig)
Internal volume
<50 mL at maximum pressure
Water quality
Deionised or demineralised (<10 uS)
Instrument integration
Up to 32 units can be connected in series for high volume gas output
1/8" Swagelok
Power requirements
220 - 240 V/ 50 Hz
Dimensions (W x D x H)
230 mm x 355 mm x 410 mm
20 Kg
RS232/RS485 and USB: PC control

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About Us

Advance Scientific Products Pty Ltd is based in Queensland and is focused on delivering high-quality products and service to our customers in the life, chemical and analytical sciences across Australia.

The company was established in 2013 by experienced instrumentation specialists to provide full distribution and customer support capability to manufacturers seeking to expand their activities in Australia without having to create their own sales and marketing infrastructure.


PO Box 746
Moffat Beach, QLD, 4551, Australia