Pro-face PS-4000B Series, User Manual

Page: 24 / 138

PS-4000B Series User Manual
24
Division 2 hazardous location regulations require that all cable connections be
provided with adequate strain relief and positive interlock. Use only non-incendive
USB devices as USB connections do not provide adequate strain relief to allow the
use of the PS-B unit’s
USB connections (see page 71) . Never connect or disconnect
a cable while power is applied at either end of the cable. All communication cables
should include a chassis ground shield. This shield should include both copper braid
and aluminum foil. The D-sub style connector housing must be a metal conductive
type (e.g., molded zinc) and the ground shield braid must be terminated directly to
the connector housing. Do not use a shield drain wire.
The outer diameter of the cable must be suited to the inner diameter of the cable
connector strain relief so that a reliable degree of strain relief is maintained. Always
secure the D-Sub connectors to the workstation-mating connectors via the two
screws located on both sides.
Operation and Maintenance
The systems have been designed for compliance with relevant spark ignition tests.
Hazardous Location Installations - For ATEX
PS-4000B Series must only be mounted in to the category 3D enclosures according
to the directive 94/9/EC.
The assembled units with an enclosure should be marked:
II 3D Ex tc IIIA T85

C Dc Tamb: 0

C to +50

C
Marine Installations - For Germanischer Lloyd (GL)
The HDD-less DC powered type of the fan-less (Atom N270 embedded) model is
GL certified only when connected to a Noise Filter for Marine Certification.
DANGER
EXPLOSION HAZARD
In addition to the other instructions in this manual, observe the following rules when
installing the PS-B unit in a hazardous location:

Wire the equipment in accordance with the National Electrical Code article
501.10(B) for Class I, Division 2 hazardous locations.
Failure to follow these instructions will result in death or serious injury.