Special Requirements; Enclosures; Areas With Different Classifications - Mettler Toledo PANTHER Guide D'installation

3

Enclosures

Areas With Different
Classifications

Special Requirements

When a PANTHER panel-mount terminal is installed inside an area classified as Division 2,
some special requirements must be considered. This chapter discusses these items. The
METTLER TOLEDO control drawing155907R must also be reviewed for any special
requirements.
Only PANTHER panel-mount terminals which are factory-labeled as approved for Division 2
may be installed into a Division 2 hazardous area. Also note that a Nationally Recognized
Test Laboratory approved dust tight enclosure is also required for proper installation. This
note is on the METTLER TOLEDO control drawing 155907R.
PREVIOUS MODELS OF THE PANTHER PANEL-MOUNT
TERMINAL WHICH ARE NOT FACTORY LABELED FOR
DIVISION 2 COMPLIANCE MAY NOT BE INSTALLED INTO A
DIVISION 2 ENVIRONMENT. THE PANTHER HARSH
ENVIRONMENT TERMINAL IS NOT APPROVED FOR USE IN
AREAS CLASSIFIED AS DIVISION 2.
The PANTHER panel-mount terminal has been approved for use in an area classified as
Division 2. This approval DOES NOT mean that the PANTHER panel-mount terminal can be
used in Division 1 areas. Different precautions must be taken when installing equipment
into a Division 1 area.
If any portion of the installation involves an area classified as Division 1, then the complete
system should be configured to be compatible with a Division 1 classification. For instance,
if the panel-mount terminal will be installed in a Division 2 area but the load cells will be
located within a Division 1 area, a load cell barrier is required. These barriers are available
through METTLER TOLEDO.
Applications involving a mixture of Division 1 and Division 2 area classifications should be
discussed with METTLER TOLEDO. Please consult your local METTLER TOLEDO
representative regarding these types of applications.
Chapter 3: Special Requirements
WARNING
Enclosures
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