
Introduction
This chapter details the pneumatic subsystem. Included in this chapter
are the theory of operation as it relates to the pneumatics, the tools
needed for maintenance, calibration of the pneumatic pressure switch,
removal and replacement of the AC and control enclosures and a list of
field replaceable parts.
Different Pneumatic Configurations
The STERRAD
®
100 system is currently in the
Block 2.0
and STERRAD
100 S
System phase. These versions of the STERRAD 100 Sterilizer is
slightly different, in appearance only, from the Block 1.8 STERRAD 100
system. The calibration differences are noted in the text.
STERRAD
100 S
Systems have a dual position door solenoid that
prevents the door form opening during a power interruption in the vent
stage.
When you see the STERRAD Icon next to the text, as with this
paragraph, that is the symbol for a configuration other than Block 1.8.
Pneumatic Subsystem Description
The pneumatic subsystem is comprised of the air compressor, powered
through a pressure switch, an air storage tank, and a pneumatic panel.
The compressor is controlled, through the pressure control switch, to
turn on the compressor at 5.1 Bar (60 psig) and off at 6.5 Bar (80 psig)
(414 and 552 kpa), and to dump the compressor head pressure
whenever the pump is not running, or the power to the compressor fails.
Pneumatic Theory of Operation
The pneumatic subsystem provides a source of pressurized air used to
open and close the process chamber door, operate the injector pump
clamp, and pressurize the top of the cell, forcing hydrogen peroxide from
the cell into the injector valve.
The pneumatic subsystem is comprised of the air compressor, powered
through a pressure switch, an air storage tank, and pneumatic panel.
The compressor is controlled, through the pressure control switch, to
turn on the compressor at 5.1 Bar (60 psig) and off at 6.5 Bar (80 psig)
(414 and 552 Kpa), and to dump the compressor head pressure when
ever the pump is not running, or the power to the compressor fails.
Pneumatic Subsystem
Introduction
8-2
STERRAD® 100 Sterilizer
ASP Service Guide rev. D
Содержание STERRAD 100
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