The Model GAS-22-D Global Air Sampling System is a microprocessor controlled low-volume air sampler consisting of an oil-less, carbon vane vacuum pump, with a constant airflow regulator for use where a nearly constant airflow is desirable. The regulator holds a constant pressure drop across an in-line venturi, 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, 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 pump is mounted on a removable base plate. WH-3HEPA has an enclosure rating of IPX3 and is powder coat paint protected.
The GAS-22-D utilizes a bright VFD that has four (4) lines by 24 characters and utilizes wide temperature range elec-tronic components for use in extreme ambient conditions. The flow management system electronics are enclosed in a dust protected enclosure. The cooling air inlet has a large area HEPA filter.
The GAS-22-D Global Air Sampling System is designed for continuous outdoor use in very dusty or wind blown sand and dusty environments. Please consult the product specifications for the design temperature range and the installation category.
The typical operating flow range is 0.5 to 4 CFM (14 – 115 LPM).
