Vega 33_Ex-33 User Manual download pdf (Page 3)

Module-33/Ex-33 3

Product description

Connection instructions for

Ex-applications

Mounting in carriers and housings

When a VEGA-instrument with Ex-approval is

mounted in a carrier or a single housing, a

module Ex-33 of VEGA must be used. Keep a

distance of at least 2 TE (10,16 mm) to module

cards of foreign manufacturers. The modules

or instruments must be generally installed

outside the hazardous area or further Ex-

protective measures must be taken.

Ex-separating chamber

An Ex-separating chamber (with modules for

the installation of VEGATRENN 547 VEx and

548 VEx) the wide separating chamber must

be used) must be mounted to the connections

of the Ex-module to guarantee sufficient air

and creeping distances. Proceed as follows:

Loop the lines of the intrinsically safe circuit

through the separating chamber and connect

to the appropriate position of the multipoint

connector.

When using a multipoint connector with screw

connection, the upper marked section on the

separating chamber of module Ex-33 E must

be broken off first.

Separating chamber

wide separating

chamber

Shift the separating chamber up to the

multipoint connector and fasten with the inte-

gral nut to the protruding fixing screw of the

multipoint connector.

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