RADeCO, Inc .

RADeCO, Inc .

- Model AVS-28A - Continous Duty Samplers



The Model AVS-28A Portable Constant Flow Air Sampler is a continuous duty, constant flow device. It can be used with filters and cartridges in the collection of airborne contaminates, or as a regulated, positive displacement vacuum supply for continuous air monitors and stack sampling systems.The ability of the AVS-28A to maintain a preset sample flow rate is controlled by the unique side-mounted regulator valve. The RADēCO regulator valve is not a bypass design, and therefore the exhaust contains only sampled air. The AVS-28A has the superior ability to compensate for added P across sampling media.The sampling flow rate is read out on a side-mounted rotometer which measures the differential pressure across the in-line anodized aluminum venturi. All units are individuall y calibrated and traceable to NIST.

Air Flow Rate: Adjustable from 0.5 to 3.5 CFM (15 to 100 LPM).

Air Flow Regulation: +5% of set air flow rate up to maximum capability of pump.

Dimensions/Weight: 12” Long x 14” Wide 9” High, (30.5 cm x 35.6 cm x 22.9 cm), 38 lbs (17.27 kg).

Power Requirement/Cable: 115V, 60Hz, 4.6 Amps; 230V, 50hz, 2.3 Amps. Three wire, (6) six feet (10) Ten Amp rating; British and European available.

Air Flow Indicator: Venturi mounted rotometer.

Air Mover/Motor: Self-adjusting carbon vane type. Pump is designed for continuous operation at 26” Hg vacuum. Rated at 1/4 horsepower with thermal overload protection.

Input Connection: 3/8” Female Quick Disconnect.

Re-settable Elapsed Time Meter: 99999 hours and 59 minutes, pushbutton re-settable.

  • Constant airflow maintained with ΔP across the filter up to 17' Hg (Flow Rate Dependent)
  • Balanced, Easy to carry system
  • Flow rate indicated on rotometer, CFM or LPM
  • Rated for continuous duty
  • Low noise level
  • Minimal maintenance
  • Optional elapsed time indicator
  • All units individually calibrated and traceable to NIST


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