Hydrogen Gas Generator for GC

GC-FID, GC-FPD, GC-NPD, GC-TCD, ICP-MS, THA, Hydrogenation, Fuel cell


The COSMOS MD.H2 generator is designed for GC-detectors requiring H2 fuel gas such as FID, FPD, NPD and TCD.

The Hydrogen gas is produced from deionised water using the exclusive 100% titanium Proton Exchange Membrane (PEM) technology, which provides a very high reliability, new longer life and better purity.

The COSMOS MD.H2 series use a desiccant cartridge that needs to be replaced or refilled when saturated, which allow to dry the H2 gas and increase the purity.

The automatic checking for internal leaks whenever starting the unit and constant control of operating parameters, guarantee maximum safety.

The touch screen interface provides simple and user-friendly management of all functions on the unit.

Reference :

COSMOS.MD.H2.[Flow rate]




The use of hydrogen as a carrier gas allows lower temperature elution, thus extending the life of the chromatograph column. Hydrogen as a carrier gas is faster and more sensitive than the more-expensive helium. Run time savings of 25% to 35% without a decline in resolution.



A constant, uninterrupted gas supply of guaranteed purity eliminates interruptions of analyses to change cylinders and reduces the amount of instrument re-calibrations required.



The very limited internal volume (less than 50 ml) allows safe use of the gas generators where the use of cylinders is risky or prohibited.
The application of tested safety technologies stops the unit in the event of leaks or malfunctions



Gas generators can be installed in the laboratory, on or under a bench, eliminating the need for long gas lines from cylinders secured elsewhere.


  • Flow rate : 110, 170, 260, 300, 400, 500, 600 cc/min
  • Purity > 99.9996%
  • Pressure up to 7 bar (101.5 psi)
  • Exclusive 100% titanium multilayer PEM cell : longer life/ better gas purity
  • Touch screen with indication in real time : H2 outlet pressure, H2 flow rate, water quality, water level, auto-diagnostics of breakdown with alarms.
  • Automatic checking for internal leaks to guarantee maximum safety
  • LED indicators status (Ready, Stand-by, Alarm, Off)
  • Remote PC monitoring and diagnostic analysis via USB to interface the unit with customer’s PC software (allow to carry out checks and maintenance effectively, only via a remote connection)
  • Compact, space-saving stackable design


MODELS MD.H2.110 MD.H2.170 MD.H2.260 MD.H2.300 MD.H2.400 MD.H2.500 MD.H2.600
H2 flow rate – cc/min 110 170 260 300 400 500 600
Electrolytic cell Long life Multilayer PEM technology
H2 purity > 99.9996 % (O2 < 1 ppm, Dew Point < -55°C (-67°F))
Delivery pressure 1 – 7 bar (14 – 101.5 psi)
H2 dryer Dessicant catridge to refill or replaced when saturated
Temperature range From 5 – 35°C (41 – 95°F) and humidity 80% to 25°C (77°F)
Touch screen Touch screen (operating parameters, system status, alarms) with LED indicators (Power on/off; ready or errors)
Dimensions (W x H x D) 27 x 44 x 38 cm (10.5″ x 17″ x 15″)
Weight (kg/lbs) 18 / 39 19 / 42
Power consumption 75 W 95 W 140 W 180 W 190 W 230 W
Electrical supply 220 – 240 V ac / 1 ph / 50 – 60 Hz
110 – 120 V ac / 1 ph / 50 – 60 Hz
Water quality Deionised, ASTM II, < 0.1 µS Conductivity
Supply pressure Max. 6 bar
Internal water tank 2.3 liters
External water tank capacity (Optionnal) 5 or 10 liters
Hydrogen outlet 1/8 Swagelock
Water inlet Quick release push-in fitting
USB/PC Control In series
RS232/RS485 Option
ACCESSORIES Water tank 5 liters Water tank 10 liters
Part Number water.tank.005 water.tank.006


Commercial documentation
Setup guide
User manual
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