Special Requirements; Enclosure; Areas With Different Classifications - Mettler Toledo IND560 Serie Guia De Instalacion

Chapter 3

Special Requirements

When an IND560xx terminal is installed inside an area classified as Division 2 or
Zone 2/22, some special requirements must be considered. This chapter discusses
these items. The METTLER TOLEDO control drawing 72186884CR, installation
drawing 30051067R and the DEMKO approval certificate must also be reviewed
for any special requirements.

Enclosure

Only IND560xx terminals that are factory-labeled as Division 2 approved may be
installed into a Division 2 area. Similarly, only IND560xx terminals that are
factory-labeled as Category 3 may be installed into a Zone 2 or Zone 22
hazardous area.
Also note that a Nationally Recognized Test Laboratory approved dust tight
enclosure is required for proper installation of the panel-mount terminal in the U.S.
and Canada. This note is on the METTLER TOLEDO control drawing 72186884CR.
The Category 3 certificate granted by DEMKO requires the use of increased safety
"e" glands and blanks on the IND560xx harsh enclosure. An ATEX certified
enclosure with a minimum ingress protection rating of IP65 is required for panel-
mount installation in Europe.

Areas with Different Classifications

The IND560xx terminal has been approved for use in an area classified as
Division 2 or as Zone 2 or Zone 22. This approval DOES NOT mean that the
IND560xx terminal can be used in Division 1, Zone 0/1 or Zone 20/21 areas.
Different precautions must be taken when installing equipment into these areas.
METTLER TOLEDO offers other terminals for use in Division 1, Zone 0/1 or Zone
20/21 areas.
If any portion of the installation involves an area classified as Division 1, Zone 0/1
or Zone 20/21, then the complete system should be configured to be compatible
WARNING
MODELS OF THE IND560 TERMINAL THAT ARE NOT LABELED AS
DIVISION 2 APPROVED OR MARKED AS EUROPEAN CATEGORY 3
MUST NOT BE INSTALLED IN A DIVISION 2 OR ZONE 2/22
ENVIRONMENT.
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