Security Information - Siemens Maxum Edition II Installation Manual

When the Maxum II contains an air bath oven, it will vent in excess of 85 liters per minute (3
SCFM) of heated air through the oven exhaust. See note below for the recommended
approach.
Oven Venting
All vent lines and oven exhaust should be vented outside the shelter. The vents should be
connected to a location where the pressure is atmospheric. Connection of oven or analyzer
vents to a variable pressure source such as a flare header should not be done, as
chromatographic performance will be severely affected. Backpressure on oven vent could
cause the T-rating of the instrument to be exceeded, which might become an ignition source.
In addition, in some situations it may be possible for backpressure on oven vents to force
hazardous gases into the shelter. Refer to the comments on Hazardous gases previously
described.
Installation of the unit with a combustible gas coming into the EPC requires that a restriction be
placed on the flow into the Maxum II. This is required to limit the flow of the combustible gas into
the unit. The recommendation is to limit the flow prior to entry into the shelter.
Flow Restriction
The Maxum II will be tagged for flow restriction of combustible gases into the Electronic
Pressure Controller. The user/installer must ensure that this flow restriction is implemented to
permit safe operation of the unit.
2.5

Security information

Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is
necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial
security concept. Siemens' products and solutions constitute one element of such a concept.
Customers are responsible for preventing unauthorized access to their plants, systems,
machines and networks. Such systems, machines and components should only be connected
to an enterprise network or the internet if and to the extent such a connection is necessary and
only when appropriate security measures (e.g. firewalls and/or network segmentation) are in
place.
For additional information on industrial security measures that may be implemented, please
visit (https://www.siemens.com/industrialsecurity).
Siemens' products and solutions undergo continuous development to make them more secure.
Siemens strongly recommends that product updates are applied as soon as they are available
and that the latest product versions are used. Use of product versions that are no longer
supported, and failure to apply the latest updates may increase customers' exposure to cyber
threats.
Installation Manual
Installation Manual, 12/2019, 2000595 Rev 1
WARNING
WARNING
Safety notes
2.5 Security information
11