The combined ZN2/Air generator eliminates the need for costly, inconvenient high pressure cylinders in the laboratory. Including an integral oil free air compressor in option, the combined nitrogen/air generators deliver a continuous stream of pure nitrogen gas > 99,9995% and grade purified air with HCs content < 0.1 ppm, ideal for applications, such as, GC carrier gas, make up and GC-FID.

Zero Nitrogen is produced by pressure swing adsorption (PSA) to remove oxygen, carbon dioxide and water from compressed air and a catalyst to remove hydrocarbons (CH4) < 0.05 ppm from Nitrogen.

The pure air is produced by using an activated alumina column.

The Generator is controlled using the latest in HMI touch screen technology to display the process in real time, inlet/outlet pressures.

  • Advantages
  • Characteristics
  • Specifications
  • Demo
  • Quote


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.

Improved economy
Zero Nitrogen and Pure air gas produced as standard.

Improved safety
Zero Nitrogen and Pure Air produced at low pressure and ambient temperature removes the need for high pressure cylinders.

Security of supply
Integral oil free air compressor as an option guarantees continuous gas supply, independent of in house compressed air supply.

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.


  • Fully regenerative PSA technology ; reduced risk of gas contamination and phthalate free
  • HMI touch screen technology to display the process in real time, including process variables
  • Options :
    - Integral oil free air compressor : fully secure supply
    - Oxygen analyser
  • Catalyst module for hydrocarbons level < 0.05 ppm
  • Quiet thanks to the Soundproofed compressor box and anti-vibration features
  • Auto start
  • Audible and alarm display with help menu and history log
  • Visual maintenance indication with alarm and history log
  • Outlet flow gas indicator
  • Remote access to screen using internet via USB port.
  • Fit with wheels



Built-in compressor

N2 flow rate

N2 purity

Pur Air flow rate

Pure Air purity

Outlet pressure

(W x H x D)




1 L/min

CH4 < 0.05 ppm

1.5 L/min

(HCs < 0,1 ppm
dewpoint < -55°C (-67°F))

5.5 bar
(80 psi)

34 x 77 x 69 cm
(13" x 30" x 27")

59 / 130



66 / 145



3 L/min

3 L/min

43 x 83 x 80
(17" x 33" x 31")

101 / 223



43 x 83 x 100 cm
(17" x 33" x 39")

113 / 249

Technical information
Ambient Temp range

5 - 25°C (41 - 77°F)

Maximum air Inlet Pressure

8 bar (116 psi)

Air Inlet Quality Requirement
(units without compressor)

Dewpoint : -40°C (-40°F)

Particulate : < 1 micron

Oil : < 0.01 mg/m3

Electrical Supply

220 V ac/ 1 ph / 50 Hz

110 V ac/ 1 ph / 50 - 60 Hz

Inlet/Outlet connections

G 1/4" (BSP) Female




KRSS Left Strip