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Parker® ChromGas® Zero Air Generator

Model 1000, 110 volt, output flow, 1000 cc/min

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output flow 1000 cc/min

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General description

This ChromGas zero air generator incorporates three stages:
  • A 0.5 mm coalescing inlet filter removes particles, oil, and water
  • A heated catalyst removes hydrocarbons
  • A 0.01 mm cellulose fiber outlet filter removes residual particulate material from the product air stream
A hazard-free and economical alternative to high pressure gas cylinders, this unit should pay for itself in a year or two.

  • Eliminates need for expensive gas cylinders
  • Compact; requires less than one square foot of bench space
  • Can be used anywhere that an electrical supply is available
  • Only requires an upstream compressed air source

  • Clean the inlet and outlet filters every six months
  • Change the inlet and outlet filters every two years

  • Inlet Pressure: 2-125 psig
  • Outlet Purity: <0.1 ppm hydrocarbons (as methane)
  • Outlet Pressure: 125 psig
  • Outlet Fitting: 1/8 in. compression
  • Power Needs: 110 V (60 Hz), or 230 V (50 Hz)
  • Shipping Weight (Model 1000 and 1001): 11 lb (5 Kg)
  • Shipping Weight (Model 3500 and 3501): 20 lb (9.1 Kg)
  • Dimensions (Model 1000 and 1001; H x W x D): 9.75 in. x 5.75 in. x 12 in. (25 cm x 14.7 cm x 30.8 cm)
  • Dimensions (Model 3500 and 3501; H x W x D): 12 in. x 6.75 in. x 15 in. (29.2 cm x 17.8 cm x 39.4 cm)

  • CE approved
  • UL listed
  • CSA listed
  • IEC 1010 certified


Catalytic Zero air generator may be used to measure zero air count rates after field measurements, to determine atmospheric concentrations of volatile organic compound using On-line proton transfer reaction-mass spectrometry (PTR-MS). It may also be used to obtain volatile organic compound-air which could be used to dilute the standard gas to 50 ppb required to calibrate PTR-MS.

Legal Information

Chromgas is a registered trademark of Parker Hannifin
Parker is a registered trademark of Parker Hannifin

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Hydrocarbon fluxes above a Scots pine forest canopy: measurements and modeling.
Rinne, J., et al.
Atmospheric Chemistry and Physics, 7, 3361-3372 (2007)
On-line PTR-MS measurements of atmospheric concentrations of volatile organic compounds in a European boreal forest ecosystem.
Rinne, Janne, et al.
Boreal Environment Research, 10, 425-436 (2005)

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