This unit can provide both hydrogen gas and zero grade air to FID detectors on Gas Chromatographs.

Hydrogen gas is produced from deionised water using a Proton Exchange Membrane Technology. Zero air is produced by purifying compressed air sourced from the air network to a total hydrocarbon concentration of < 0.05 ppm (measured as methane).

The H2/AIR FID Station combine the hydrogen serie FID-LC-H2 and Zero air serie ZA generators in one unit.

  • Advantages
  • Characteristics
  • Specifications
  • Demo
  • Quote


Improved chromatograph result
The reduction of hydrocarbons on zero air part, including, methane to < 0.05 ppm decreases the background noise level and gives the baseline much better stability, considerably increasing detector sensitivity and ensuring precise analytical results. 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.

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

Save money
The unit only requires connection to a suitable socket and to external source of compressed air for the zero air part. The investment can be paid back in less than one year.

Improved safety
The very limited internal volume (less than 50 ml for H2) 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.

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


  • For Zero Air part :
    - HC < 0.05 ppm
    - CO < 0.05 ppm
    - Flow available : 1.5 L/min
    - External clean and dry air compressor required at maxi. 7 bar (101 psi)
  • For Hydrogen part :
    - Flow rate available : 100, 140, 180 cc/min
    - Membrane technology (PEM)
    - Pressure up to 7 bar (101 psi)
    - Patented gas/water separator electronically controlled
    - LCD touch screen with simple use menu
    - Water tank protected and filtered


ZA part need to be connected to an
external clean and dry compressed air




General Information
H2 / Zero Air flow rate (cc/min)

100 / 1500

140 / 1500

180 / 1500

H2 / Zero Air purity

> 99.9995% (O2 < 1 ppm, dewpoint H2O < -55°C (-67°F))
CH4 < 0.05 ppm

H2 delivery pressure

7 bar (101 psi) max

Air inlet pressure / Air inlet quality required

Minimum 5 bar (72 psi) / Max. inlet hydrocarbon content < 100 ppm ; water dewpoint < -20°C (-4°F)

Air delivery pressure

0.5 bar (7 psi) less than inlet air pressure

Internal water tank

1.2 liters

Water quality

Deionised, ASTM II, < 0.1μ

Temperature range

From 5 - 35°C (41 - 95°F)

LCD touch screen

Resolution 128 x 64 (operating parameters, system status, alarms)

Dimensions (W x H x D)

28 x 43 x 31 cm (11³ x 17³ x 12³)

Outlet ports

1/8 Swagelock

Weight (kg/lbs)

12 / 26.5

Power consumption

180 W

200 W

220 W




KRSS Left Strip