General Information For The User - Siemens Maxum II Manual

General Information for the User

The Maxum II Process Gas Chromatograph employs several design and construction features
which conform to various international safety standards. These standards are to ensure that
the Maxum II and related products can be safely installed and operated in hazardous areas.
Each individual detail and component of these safety systems is important to help ensure that
the chromatograph does not ignite flammable vapors and gases which may be present in the
environment surrounding the analyzer. Therefore, it is important that any personnel that come
in contact with the analyzer be familiar with the operation of the safety systems so that they
are less likely to compromise safe operation while performing routine maintenance, operation,
or other tasks.
This manual provides an overview and general description of the primary safety systems used
in the Maxum II. Also, this manual provides guidelines and procedures that should be followed
to avoid damage to the safety systems. Note, it is not possible in this manual to describe every
possible operation or maintenance situation. At all times, maintenance and operation should
be performed only by properly trained and experienced personnel who are familiar with
explosion prevention designs in electrical apparatus. In addition, Maxum II maintenance and
operation procedures should be supervised and approved by plant personnel who are
knowledgeable in local safety regulations and practices.
Also, this manual does not provide specific instructions for installation, operation, or
maintenance. Those topics are covered in other manuals.
The exact configuration of any Maxum II Process Gas Chromatograph depends on the
application. Therefore, the information in this manual is general in nature and may not apply
to specific installations.
This manual includes figures and illustrations that are not formal design drawings to explain
maintenance issues and device function. Note however, that formal design drawings of all
safety systems are an integral part of the safety certifications for the Maxum II.
This manual describes the safety systems in several sections that relate to the various portions
of the hardware. In addition, a special section is provided to describe normal, safe instrument
startup.
Figure 1-1 for the Maxum Airless/Airbath configuration (MAA), and Figure 1-2 for the Maxum
Modular Oven configuration (MMO), identify the layout of the safety systems of the Maxum II
and associate various portions of the hardware to the relevant sections in this document. Note
that some hardware, such as the Automatic Purge Unit (APU), may be optional depending on
configuration.
Explosion Protection Safety Standards
Manual, August 2017, A5E02220442001 Rev 8
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