FJ-28B Low Volume Air Sampler

NOTABLE FEATURES:

Constant air flow regulator adjustable
Easy access powder coat painted enclosure with exhaust fan
Durable 1/4 HP oil-less carbon vane pump designed for continuous use
Internal intake and exhaust mufflers
Rotometer, elapsed timer indicator and vacuum gauge
110-120VAC, 50/60Hz; single phase
Certified to UL and CSA electrical safety standards by ITSNA (formerly ETL or Edison Testing Laboratories)

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GENERAL DESCRIPTION:
Model FJ-28B is counter-top cabinet model, low-volume air sampler with a 1/4 HP oil-less carbon vane vacuum pump, and a constant air flow regulator for use where a near constant air flow is desirable. The regulator holds a constant pressure drop across an in-line orifice by varying the flow through a bypass valve into the pump. This system allows the pump to work at a minimum head drop at all times by permitting it to run cooler; thus extending its service life. The oil-less pump requires no lubrication to maintain optimal efficiency during its service life. The FJ28B unit may be used in enclosed areas or placed in a weather resistant aluminum cabinet for environmental sampling.

The typical operating flow range is 0.35 to 3.5 CFM (10-100 LPM).