Hallowell EMC: Hallowell Engineering & Manufacturing Corporation

Part Description: 000A3470 - Multiflow 2002 Anesthesia Ventilator 300-1600 ml version includes bellows and housing

This model has been discontinued, but support for this product will continue indefinitely.

To see current models of small animal ventilators, please click here.

000A3470 Multiflow 2002 Anesthesia Ventilator 300-1600 ml version includes bellows and housing
The Hallowell EMC Models 2002 and 2000 are electronically controlled, time-cycled, pressure limited ventilators.

Electronic control-- Eliminates the substantial driving gas required to operate pneumatically controlled ventilators.

Time cycled-- Insures consistently spaced breaths. The possibility of stacking breaths or auto-PEEP is eliminated by keeping the I:E ratio constant at 1:2. This means that regardless of the respiratory rate setting two-thirds of each breath will remain for expiration. The respiratory rate is adjustable from 6 - 40 breaths per minute (BPM).

Volume constant -- Insures that each delivered breath will have essentially the same volume, independent of changes in patient compliance and airway resistance. The deliverable tidal volume (TV) range is from approximately 20ml to 3,000ml using 3 interchangeable bellows and bellows housings as seen here. Most small animal facilities require only the small bellows attachment , seen at the left, with the standard size ventilator, center.3Vents2K2.jpg
Pressure Limited-- Provides for patient safety by limiting the maximum working pressure (MWPL) to a user adjustable pressure range of 10 - 60 cm H2O.

The Model 2002, now our most popular ventilator, was introduced in circa 2002 after numerous customer requests for a finer volume adjustment at the low end of the range. We added a finer volume control in parallel with the existing control on the Model 2000. Everything else about the Model 2002 is identical to the Model 2000.

Both ventilators are equipped with dual airway pressure alarms that monitor and sound when the peak inspiratory pressure (PIP) of any breath either exceeds the preset maximum working pressure limit (MWPL) or fails to reach 6 cm H2O as in the case of a disconnect.

A Low Supply Gas Alarm , available as an option, would sound when the supply gas pressure falls below 35 psi, 2.4bar. The normal supply gas operating pressure is 50psi or 3.5bar. It is not until 35psi or 2.4bar that the ventilators delivered volume will begin to drop off proportionally with the warining supply pressure.


Model 2000 Operating Manual Mounting Options Related Parts Ventilator Basics


Hallowell EMC
35 Downing Industrial Park
Pittsfield, MA 01201
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