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Model 2020-EXP Portable Zero Air Source

The Model 2020-EXP is a portable source for clean, dry air designed to meet a wide range of requirements for the environmental industry including trace level applications. From supplying zero air for calibration systems to purge air for permeation ovens, the small package size and weight make the Model 2020-EXP the preferred choice for field and audit personnel as well as operating environments with limited bench space.

The Model 2020-EXP uses an internal permeation drying system for moisture removal and is coupled with filter canisters for scrubbing NO, NO2, O3, SO2, and H2S. Optional features such as the internal carbon monoxide (CO) oxidizer or external hydrocarbon (HC) oxidizer further the Model 2020’s clean air capabilities.



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    • Standard 30 LPM @ 35 PSIG
    • Pressure or Vacuum mode for pump module
    • Condensate/purge valving for moisture removal
    • Automatic purge frequencies
    • Front panel mounted adjustable pressure regulator with pressure gauge
    • Purge switch
    • Internal permeation dryer
    • Media canisters for removal of NO, NO2, O3, SO2, H2S
    • Rugged top mounted carrying handles
    • Dew point – Less than -20°C
    • 1/4″ outlet ports



    • CO Oxidizer
    • Hydrocarbon Oxidizer
    • Dew Point Indicator
    • CO2 Scrubber
    • 1 x Ethernet: 10/100 Base-T
    • 1 x RS232 (300-115, 200 baud)
    • MODBUD Protocol Support



    Simple straight-forward controls allow local operation from the front panel, with the option to set the purge frequency and duration for optimum performance. Additionally, the unit automatically drains moisture and pressurized air once powered down.

    The Model 2020-EXP is a split chassis design that has a removable Control/Cleanup module and a separate removable pump module that can be used together or independently. The split design allows the overall weight of the unit to be distributed for users to easily carry inside of shelters or locations that are difficult to access. All modules can be stored for shipment inside of the provided transport case that has a telescopic handle and wheels.

    Remote activation is achieved using the air source control port and cable in conjunction with any Sabio calibrator. This exclusive feature allows the user to start and stop the unit as needed to avoid unnecessary run times; increasing pump life and decreasing service intervals.

                    Specifications subject to change without notice
    Air Quality
    Standard UnitNO, NOx, NO2, O3, SO2, H2S <0.25 ppb
    Standard unit with CO catalytic oxidizerNO, NOx, NO2, O3, SO2, H2S <0.25 ppb, CO <5 ppb
    Standard unit with external HC catalytic oxidizerNO, NOx, NO2, O3, SO2, H2S, NH3 <0.25 ppb, Hydrocarbon < .20 ppb, CO < 5 ppb
    Height11 in. (27.9 cm)
    Width17 in. (43.1 cm)
    Depth21.0 in. (53.3 cm)
    Average Weight30 lbs (13.6 kg) modules in case 15 lbs (13.6 kg) pump module 10 lbs (13.6 kg) Control/Cleanup module 40 lbs (13.6 kg) w/HC Oxidizer
    Standard98-132 VAC, 50/60HZ
    Optional196-264 VAC, 50/60 Hz


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