Equipment Description - CAIRE Companion C1000 Technical & Service Manual

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Equipment Description

NOTE: Throughout this manual the CAIRE Companion 1000
and CAIRE Companion 1000 T will be referred to as the
Companion 1000/T whenever information that is applicable to
both models is presented.
The CAIRE Companion C1000 and C1000T units are the
portable components of a supplemental oxygen system. The
Companion 1000 provides continuous oxygen flow up to 6LPM,
and the Companion 1000T provides continuous oxygen flow up
to 15LPM. The C1000 and the C1000T are nearly identical in
features and operational characteristics. The difference in the
two units is primarily the oxygen flow delivery rate capabilities.
Enclosed in a plastic case, the C1000/T incorporates a stainless
steel cryogenic container with the valves, plumbing, and associ-
ated hardware necessary to deliver gaseous oxygen to a patient at
or near room temperature.
The Companion portable units are composed of four major as-
semblies, grouped according to function:
1. Cryogenic Container This assembly is a double walled
vacuum insulated Dewar for storing liquid oxygen (LOX) at
approximately -173°C/-280°F. The inner vessel is designed
to safely hold liquid oxygen and is protected from over pres-
surization by the primary relief valve. Vacuum insulation
between the inner and outer vessel keeps outside heat from
causing the cold liquid inside to evaporate.
2. Plumbing System The plumbing system consists of the
warming coils, vent valve, PRV, SRV, FCV and QDV (fill
connector). It is responsible for filling the unit with liquid
oxygen, as well as removing the liquid oxygen from the
cryogenic container and warming it to a gas for delivery to
the patient.
3. Case Assembly The C1000/T side covers are molded poly-
carbonate plastic. When assembled, they form a clam-shell
enclosure of the plumbing and cryogenic container.
4. Liquid Content/Level Indicator The system uses a weight
scale system to measure the level of LOX remaining in the
cryogenic container. It is activated by suspending the unit by
one end of the carrying strap and reading the needle gauge
built into the top cover.
Figure 3: Companion portables components
Companion Portable Technical Service Manual • PN 20562220 Rev B
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