Introduction; Scope And Definitions; Atex Directive Implications - Edwards RV3 Instruction Manual

1

Introduction

1.1

Scope and definitions

This manual provides installation, operation and maintenance instructions for Group 2 Category 2 ATEX pumps in
respect to ignition sources external to the pump and Group 2 Category 3 ATEX pumps in respect to ignition sources
internal to the pump. You must use the pumps as specified in this manual.
Read this manual before you install and operate your rotary vacuum pump. Important safety information is
highlighted as WARNING and CAUTION instructions; you must obey these instructions. The use of WARNINGS and
CAUTIONS is defined below.
Warnings are given where failure to observe the instruction could result in injury or death to
people.
Cautions are given where failure to observe the instruction could result in damage to the pump, associated
equipment and process.
The units used throughout this manual conform to the SI international system of units of measurement.
Note: The content of this manual may change from time to time without notice. Edwards accept no liability for
any errors that may appear in this manual, nor does it make any expressed or implied warranties regarding
the content. So far as is reasonably practicable Edwards has ensured that its products have been designed
and constructed so as to be safe and without risks when properly installed and used in accordance with
Edwards Operating Instructions. Edwards accepts no liability for loss of profit, loss of market or any other
indirect or consequential loss whatsoever.
Note: Product warranty and limit of liability are dealt with in Edwards standard terms and conditions of sale or
negotiated contract under which this document is supplied.
1.2

ATEX directive implications

This pump is designed to meet the requirements of Group II Category 2 equipment in respect of potential ignition
sources external to the pump, and also Group II Category 3 in respect to ignition sources internal to the pump. This
classification is in accordance with Directive 94/9/EC of the European Parliament and the Council of 23rd March 1994
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)
There is no potential source of ignition within or external to the pump during normal operation but there may be
potential sources of ignition under conditions of rare or expected malfunction as defined in the Directive. As a result
of this, it is necessary to consider the potential consequences of ignition sources occurring under rare or expected
malfunction. (Ref ATEX137 1992/92/EC).
© Edwards Limited 2008. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
WARNING
CAUTION
A652-18-880 Issue C
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