Installation In Hazardous Areas; Atex Marking For -Bxxx; Atex Marking For -Axxx; Module Installation - Emerson PACSystems RX3i User Manual

User Manual
GFK-2737L
3.2

Installation in Hazardous Areas

EQUIPMENT LABELED WITH REFERENCE TO CLASS I, GROUPS A, B, C & D, DIV. 2 HAZARDOUS
LOCATIONS IS SUITABLE FOR USE IN CLASS I, DIVISION 2, GROUPS A, B, C, D OR NON-
HAZARDOUS LOCATIONS ONLY.
WARNING
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3.2.1

ATEX Marking for -Bxxx

II 3 G Ex nA IIC T5 X Ta: -25C - 60C
3.2.2

ATEX Marking for -Axxx

II 3 G Ex nA IIC T5 X Ta: 0C - 60C
3.3

Module Installation

3.3.1

Power Requirements

More than one power supply may be required to support some configurations. To
determine the loading within the PNS rack, refer to the Module Load Requirement section
in the PACSystems RX3i System Manual, GFK 2314. Calculate the separate 3.3 Vdc and 5
Vdc needs of the modules within the rack, and select power supplies accordingly.
3.3.2

Hot Insertion and Removal

The PNS Module does not support hot insertion or removal. Turn power off at the rack
before removing or inserting a PNS.
Certain I/O Modules within the rack may be removed and/or inserted while the rack is
powered up. Refer to Section 5.3 Hot Swap of I/O Modules
For a full discussion of this topic, refer to the Hot Insertion and Removal section in the
PACSystems RX3i System Manual, GFK 2314.
Installation
EXPLOSION HAZARD - SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY
FOR CLASS I, DIVISION 2.
EXPLOSION HAZARD - WHEN IN HAZARDOUS LOCATIONS, TURN OFF POWER
BEFORE REPLACING OR WIRING MODULES.
EXPLOSION HAZARD - DO NOT CONNECT OR DISCONNECT EQUIPMENT UNLESS
POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NON-
HAZARDOUS.
EXPLOSION HAZARD - USB PORT IS ONLY FOR USE IN NON-HAZARDOUS
LOCATIONS, DO NOT USE UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS.
Section 3
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