AVS-28A

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.

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Features

  • 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

Description

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.

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