Mettler Toledo IND560 Serie Guia De Instalacion página 13

Chapter 1
Introduction
This installation guide describes some basic concepts about Division 2 and Zone
2/22 hazardous areas and provides guidelines for installing the UL and DEMKO
approved IND560xx terminal into hazardous environments rated as Division 2 or
Zone 2/22. IND560 models that have Division 2 or Zone 2/22 certification for use
in Division 2 or Zone 2/22 areas are referred to as "IND560xx".
Only IND560xx terminals that are factory-labeled as Division 2 approved or
marked as Category 3 may be installed into a Division 2 or Zone 2/22 hazardous
area. Refer to the next chapter for details of the data plate markings on approved
terminals. Models of the IND560 terminal that are not factory labeled for Division 2
compliance or as Category 3 devices may not be installed into a Division 2 or
Zone 2/22 environment.
The approval by Underwriters Laboratories (UL) applies to Division 2 or Zone 2/22
applications that require certification to the National Electrical Code (NEC) in the
United States and to Division 2 applications that require certification to the
Canadian Standards Association (CSA) in Canada. The DEMKO certification
applies to European Zone 2/22 applications that require certification to CENELEC
standards. These approvals may also be acceptable in other worldwide locations.
Confirm with the customer or with local authorities the acceptance of these
approvals before installation. Regardless of the installation location, all local and
national wiring and installation requirements must be followed during installation.
The IND560xx terminal has been approved for use in areas classified as Division
2 or Zone 2 or Zone 22. This approval DOES NOT mean that the IND560xx
terminal can be used in Division 1, Zone 0/20 or Zone 1/21 areas. Different
precautions must be taken when installing equipment into these areas. Please
consult your local METTLER TOLEDO representative regarding applications in a
Division 1, Zone 0/20 or Zone 1/21 area.
METTLER TOLEDO ASSUMES NO RESPONSIBILITY FOR CORRECT
INSTALLATION OF THIS EQUIPMENT WITHIN A DIVISION 2 OR ZONE 2/22
AREA. THE INSTALLER MUST BE FAMILIAR WITH ALL DIVISION 2 OR ZONE
2/22 WIRING AND INSTALLATION REQUIREMENTS.
WARNING
THE IND560xx TERMINAL IS NOT INTRINSICALLY SAFE! DO NOT USE
WITHIN AREAS CLASSIFIED AS HAZARDOUS DIVISION 1, ZONE 0/20 OR
ZONE 1/21 BECAUSE OF COMBUSTIBLE OR EXPLOSIVE ATMOSPHERES.
WARNING
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