Industry Workhorse Continues to Lead the Field

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 ΔP across sampling media.

The sampling flow rate is read out on a side-mounted rotameter that measures the differential pressure across the in-line aluminum venturi. All units are individually calibrated and traceable to NIST.

 

Specifications

* Air Flow Rate
* Adjustable from 0.5 to 3.5 CFM (10 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 X 9” High
* (30.5 cm X 35.6 cm X 22.9 cm)
* 30 lbs (13.6 kg)
* Power Requirement/Cable
* 115V, 60Hz, 8 Amps
* 230V, 50Hz, 4 Amps
* Three wire cord; six feet; 10 Amp rating; UL and CSA approved. British and European available.
* Air Flow Indicator
* Venturi mounted rotameter.
* Air Mover/Motor
* Self-adjusting carbon vane type. Pump is designed for continuous operation at 26” Hg vacuum. 1/4 horsepower; thermal over load protection.
* Input Connection
* 3/8” Female Quick Disconnect
* Resettable Elapsed Time Meter
* 9999 hours and 60 minutes, pushbutton resettable.

* CONSTANT AIRFLOW MAINTAINED WITH ΔP ACROSS THE FILTER OF UP TO 17” OF MERCURY (FLOW RATE DEPENDENT)
* BALANCED, EASY TO CARRY COMPACT SYSTEM
* FLOW RATE INDICATION ON ROTAMETER, CFM OR LPM
* RATED FOR CONTINUOUS DUTY
* LOW NOISE LEVEL
* MINIMUM MAINTENANVE
* QUALITY ASSURED
* OPTIONAL ELAPSED TIME INDICATOR
* ALL UNITS INDIVIDUALLY CALIBRATED AND TRACEABLE TO NIST