Introduction - Mettler Toledo IND780 Guia De Instalacion

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 IND780 terminal into
hazardous environments rated as Division 2 or Zone 2/22. Only IND780 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 IND780 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 applications that
require certification to the appropriate United States and Canadian standards (see below). The ATEX
certification applies to European Zone 2/22 applications that require certification to CENELEC
standards to the ATEX directive. UL has also issued an IECEx Certificate of Conformity to appropriate
IEC 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 IND780 is certified to the following standards:
64063214 | 07 | 02/2018
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.
• United States
o ISA 12.12.01:2013
• Canada
o CSA C22.2 NO. 213 M1987
o CSA C22.2 NO. 157-92
o CSA C22.2 NO. 13-14
• ATEX
o EN60079-0:2012+A11:2013
o EN60079-11:2012
o EN60079-15:2010
o EN60079-31:2014
• IECEx
o IEC60079-0:2011
o IEC60079-11:2011
o IEC60079-15:2010
o IEC60079-31:2013
METTLER TOLEDO IND780 Division 2 and Zone 2/22 Installation Guide
WARNING
1-1