Safety Protection Principles - Siemens Maxum II Manual

Typical ATEX Certification Markings for Maxum II
with Airless/Airbath Oven
1.5

Safety Protection Principles

Several different types of protection principles are used within the Maxum II and its
components. These include intrinsically safe circuits, pressurization, explosion-proof
enclosures, etc. The protection principles used depend on such factors as the type of device,
the certifying organization that is applicable for the site, and the type of environment. Table
1-2 details some of the protection principles used in the Maxum II along with the hardware that
uses those protection principles.
Type of Protection Principle Applicable Devices
Intrinsic Safety
Type X Pressurization (Px) ● Electronics Enclosure (EC)
Explosion Protection Safety Standards
Manual, August 2017, A5E02220442001 Rev 8
Typical ATEX Certification Markings for Maxum II
with Modular Oven
● Programmed Temperature
Oven Heater.
● Color Touchscreen
● Intrinsically Safe TCD DPM
● Liquid Injection Valve Heater*
● Purged Methanator*
● Air Bath Oven Heater
● Modular Oven Heater*
General Information for the User
1.5 Safety Protection Principles
Applicable Certificate
CSA & ATEX
ATEX for the EC, Methanator, and
LIV Heater, and Modular Oven
Heater
ATEX and CSA for Air Bath Oven
Heater
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