Table Of Contents - Siemens Maxum II Manual

Table of contents

1 General Information for the User..................................................................................................................7
1.1 Contacts.................................................................................................................................10
1.2 Approved Use........................................................................................................................11
1.3 Qualified Personnel................................................................................................................11
1.4 Applicable Standards and Regulations..................................................................................12
1.5 Safety Protection Principles...................................................................................................13
1.6 Intrinsically Safe Devices.......................................................................................................14
2 Safety Systems - Purging...........................................................................................................................17
2.1 Purging Overview...................................................................................................................17
2.2 Electronics Purging System (without Automatic Purge Unit).................................................18
2.2.1 Overview................................................................................................................................18
2.2.2 Instrument Air Inlet and Regulator.........................................................................................20
2.2.3 Fast Purge Switch..................................................................................................................21
2.2.4 Purge Control Module............................................................................................................23
2.2.5 SYSCON or CIM and Purge Alarm Light...............................................................................23
2.2.6 Pressure Sensor and Atmospheric Pressure Reference.......................................................24
2.2.7 Fast Purge Pressure Relief Valve..........................................................................................25
2.3 Electronics Purging System (with Automatic Purge Unit)......................................................26
2.3.1 Overview................................................................................................................................26
2.3.2 Purge Air Inlet and Regulator.................................................................................................27
2.3.3 Proportional Valve..................................................................................................................28
2.3.4 Automatic Purge Control Unit.................................................................................................28
2.3.5 Maintenance Switch...............................................................................................................29
2.3.6 Exhaust Diffuser.....................................................................................................................30
2.3.7 Signal Disconnect Relay........................................................................................................31
2.4 Maintenance Considerations for Purged Systems.................................................................32
3 Safety Systems - Oven...............................................................................................................................35
3.1 General Oven Information......................................................................................................35
3.2 Isothermal Air Bath Oven Heater System (Single and Split)..................................................36
3.2.1 Purging...................................................................................................................................36
3.2.2 Temperature Control..............................................................................................................37
3.3 Programmed Temperature Air Bath Oven Heater System (Split)..........................................38
3.4 Isothermal Airless Oven Heater System (Split)......................................................................39
3.5 Maintenance Considerations for Air Bath and Airless Ovens................................................41
3.6 Modular Oven Heater System................................................................................................42
3.7 Maintenance Considerations Modular Ovens........................................................................43
Explosion Protection Safety Standards
Manual, August 2017, A5E02220442001 Rev 8
3