4600 Series Flat Panel Industrial PC
Chapter 2 – Installation
37
144732 (C)
Operation and Maintenance
The systems have been designed for compliance with relevant spark ignition tests.
However, please note that the workstation front panel contrast adjustment tactile
switches and keyboard connector are the only make/break components intended to
be exercised by the operator in the course of normal operation.
Warning
In order to maintain a safe condition, never use an external keyboard or mouse
connected to side ports when the unit is operating in the presence of a
hazardous environment. Use of the front panel USB or keyboard/mouse ports
is safe only if the control drawing criteria is satisfied as indicated on the control
drawing on page 36, and if the device is approved for use in the classified
Hazardous Location.
With respect to Hazardous Location installations, always observe the following
rules:
1. Always install the workstations within an enclosure suitable for the specific
application. General-purpose enclosures may be acceptable for Class I
applications, but are never acceptable for Class II applications. Type 4 (IP 65)
enclosures are recommended even when not required by regulations.
2. If present, keep enclosure doors or openings closed at all times, to avoid the
accumulation of foreign matter inside the workstation.
3. Never subject the unit to any installation or service procedures unless power has
been removed and the area is known to be non-hazardous. This includes the
installation or removal of power cables, communication cables, or removal of the
rear cover of the unit.
4. Only technically qualified service personnel should perform all installation and
service. These workstations are designed to require no service in the course of
normal operation by an operator.
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