Pfeiffer Vacuum DUO 11 ATEX, Руководство по эксплуатации

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2.3 Safety precautions
Duty to provide information on potential dangers
The product holder or user is obliged to make all operating personnel aware of dangers
posed by this product.
Every person who is involved in the installation, operation or maintenance of the product
must read, understand and adhere to the safety-related parts of this document.
Infringement of conformity due to modifications to the product
The Declaration of Conformity from the manufacturer is no longer valid if the operator
changes the original product or installs additional equipment.
● Following the installation into a system, the operator is required to check and re-evalu-
ate the conformity of the overall system in the context of the relevant European Direc-
tives, before commissioning that system.
General safety precautions when handling the product
► Observe all applicable safety and accident prevention regulations.
► Check that all safety measures are observed at regular intervals.
► Do not expose body parts to the vacuum.
► Always ensure a secure connection to the earthed conductor (PE).
► Never disconnect plug connections during operation.
► Observe the above shutdown procedures.
► Keep lines and cables away from hot surfaces (> 70 °C).
► Never fill or operate the unit with cleaning agents or cleaning agent residues.
► Do not carry out your own conversions or modifications on the unit.
► Observe the unit protection class prior to installation or operation in other environments.
► Provide suitable touch protection, if the surface temperature exceeds 70 °C.
2.4 ATEX classification and safety measures
Vacuum pumps of the ATEX series are specially designed and manufactured to comply with the re-
quirements of Directive 2014/34/EU regarding the proper use of equipment and protective systems in
potentially explosive areas. The vacuum pumps are delivered with an ATEX-certified motor and are
designated as follows:
●
II 3/3G Ex h IIC T4 Gc X +12 °C ≤ Ta ≤ +40 °C
2.4.1 Labeling of the vacuum pump
Classifica-
tion
Description
Device
group
Devices which can be used for applications in potentially explosive atmospheres are
divided into two groups:
Device group I : Devices for mines susceptible to firedamp (will not be discussed in
any more detail here)
Device group II : Devices for all other potentially explosive areas with the exception of
underground operations in mines and their surface installations which are susceptible
to hazardous firedamp and / or combustible dust.
Device cate-
gory
Device group II is divided into three categories which vary in their respective degree
of safety.
Devices of
Device category 1 are designed to guarantee an extremely high degree
of safety. They must guarantee the necessary degree of safety even if malfunctions
occur only rarely on the device.
Devices of
Device category 2 are designed to guarantee a high degree of safety.
They must guarantee the necessary degree of safety even with regular occurrences
of malfunctions or fault conditions which are generally to be expected.
Devices of
Device category 3 are designed to guarantee a normal degree of safety.
They guarantee the necessary degree of safety for normal operation.
Safety
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