Tuttnauer 5050, Руководство по эксплуатации и техническому обслуживанию

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Page 5 of 85 Pages
1 GENERAL
1. Introduction
Model 3870 ELVCPVGBH-D is a laboratory sterilizer designed especially
for the sterilization of instruments, liquids, and other materials in hospital
laboratories, medical laboratories (including the medical waste), research
institutes, food laboratories, and pharmaceutical facilities.
The PV (pre-vacuum) models are equipped with a vacuum pump.
The advantages of the pre-vacuum sterilizer in comparison to the regular
gravity displacement steam sterilizer are as follows:
— Removal of air pockets from packs and porous loads and most kinds
of tubes (rubber, plastic etc.) by vacuum at the first stage of the cycle.
— Better steam penetration into the load; resulting in effective
sterilization.
— Better temperature uniformity.
— Better drying of materials with closed doors due to the vacuum
achieved in the chamber at the end of the sterilization cycle.
The autoclave is equipped with A 9Kw generator that produces the steam
required for the sterilization.
A special feature of the autoclave is fast cooling stage for liquids. In this
stage pressure in the chamber is increased by means of compressed air to
compensate the fast decreasing of pressure due to the fast cooling. The fast
cooling shortens the time required for safe handling of bottles.
In BH (bio-hazard) models, a bio-hazard filter installed in the chamber
enables sterilizing bio-hazard load without contaminating the surrounding.
A computerized control unit ensuring a fully automatic sterilization cycle
controls the autoclave.
The temperature and pressure are controlled through sensors placed inside
and outside the media container or bottles.
The sterilizer is fully automatic with a choice of 14 programs, eliminating
any need for operator intervention during a cycle (programs 9-10 are for
vacuum testing only). A computerized control unit enables precise control
and monitoring of physical parameters and clear documentation of the
sterilization cycles.
The autoclave is equipped with a safety valve, which will discharge at an
overpressure of over 2.8 Bar (40 psi), which is located on the chamber
near the pressure switch and the steam pressure gauge. The control system
provides adequate protection, to ensure the safety of personnel and
reliable operation with a minimum of down time.
The sterilizer has multiple built - in safety devices, which provides
adequate protection to ensure the safety of operating personnel.
The printer prints the preset and actual parameters of the cycle
(temperature, time and pressure).
The autoclave is provided with a pressure gauge that is used as guide only.
Should there be a power failure during the operation of the autoclave, the