ASP sterrad NX, Service & Troubleshooting Manual

Page: 3 / 126

Contents
Chapter 1. Introduction 7
Overview ...........................................................................................................................................7
Sterilant and Cassette.........................................................................................................................8
Hardware ...........................................................................................................................................8
Software.............................................................................................................................................8
Chapter 2. Safety Information 11
Personal Safety and First Aid ............................................................................................................11
Cassette Handling ........................................................................................................................13
Personal Protection Equipment..........................................................................................................13
Warnings, Cautions, and Notes..........................................................................................................14
Symbols Used on the Sterilizer and in This Guide ............................................................................14
Safety Standards Compliance ............................................................................................................15
Chapter 3. Functional Description 17
Overview of the Sterilization Process................................................................................................17
Hydrogen Peroxide Concentration and Delivery ...............................................................................18
Process Monitoring and Control ........................................................................................................18
Temperature .................................................................................................................................19
Pressure........................................................................................................................................19
Hydrogen Peroxide Monitor ........................................................................................................19
Plasma Power...............................................................................................................................20
Time .............................................................................................................................................20
System Software ................................................................................................................................20
Functional Block Diagram.................................................................................................................22
Subsystems ........................................................................................................................................23
Hydrogen Peroxide Delivery Subsystem .....................................................................................23
Vaporization Subsystem ..............................................................................................................23
Vacuum Subsystem......................................................................................................................23
Plasma Subsystem........................................................................................................................23
Hydrogen Peroxide Monitor Subsystem ......................................................................................23
Modular Design .................................................................................................................................24
Modules and Subsystem Details ..................................................................................................25
Top Module .......................................................................................................................................27
Chassis .........................................................................................................................................27
Access Panels...............................................................................................................................28
Display Assembly ........................................................................................................................28
Cassette Drawer ...........................................................................................................................28
Delivery System...........................................................................................................................28
Vaporizer/Condenser ...................................................................................................................28
Power Inlet Connector .................................................................................................................28
AC Distribution............................................................................................................................29
DC Power Supply ........................................................................................................................29
System Controller ........................................................................................................................29
Fan ...............................................................................................................................................29
Chamber Module ...............................................................................................................................30
Access Panels...............................................................................................................................30
Door Assembly ............................................................................................................................30
Chamber and Shelves...................................................................................................................31
Electrode ......................................................................................................................................31
STERRAD
®
NX
™
Service Guide 3