Edwards A73101983, Инструкция по эксплуатации, Страница: 10 / 40

2. Introduction
2.1 Scope of this manual
This manual provides installation, operation and maintenance instructions for the
XDS46i and XDS46iC scroll pump. The pump must be used as specified in this manual.
Read this manual before installing and operating the pump.
The units used throughout this manual conform to the SI international system of units of
measurement.
2.2 ATEX directive implication
This equipment is designed to meet the requirements of Group II Category 3 equipment
in accordance with Directive 2014/34/EU of the European Parliament and the Council of
29th March 2014 on the approximation of the laws of the Member States concerning
equipment and protective systems intended for use in potentially explosive
atmospheres. (The ATEX Directive)
The ATEX Category 3 applies in respect of potential ignition sources internal to the
equipment. An ATEX Category has not been assigned in respect of potential ignition
sources on the outside of the equipment as the equipment has not been designed for
use where there is an external potentially explosive atmosphere.
There is no potential source of ignition within the pump during normal operation but
there may be potential sources of ignition under conditions of foreseeable and rare
malfunction as defined in the Directive. Accordingly, although the pump is designed to
pump flammable materials and mixtures, operating procedures should ensure that
under all normal and reasonably foreseeable conditions, these materials and mixtures
are not within explosive limits. Category 3 is considered appropriate for the avoidance of
ignition in the case of a rare malfunction which allows flammable materials or mixtures
to pass through the pump whilst within their explosive limits.
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A73101880_F - Introduction