PHM/PM User Guide
2-1
I
NSTALLING
THE
M
ONITOR
2
You can install the monitor by mounting it in a control enclosure or on an
adjustable arm. This chapter explains how to select an appropriate location
for the monitor and how to mount it in an enclosure.
If you are mounting the monitor on an adjustable arm, refer to the
documentation that accompanies the arm for installation instructions.
Selecting a Location
The first step when installing the monitor is to select an appropriate
location for the unit. This is the most important aspect of the installation
process because the location you select affects the monitor’s performance,
ease of use and life-expectancy. This section provides guidelines to follow
when selecting a location.
Underwriters Laboratories Approval
In order to obtain Underwriters Laboratories (UL) approval for your
monitor installation, the installation must meet the following criteria:
1
The monitor must be mounted in a standard industrial enclosure that
provides fire protection.
2
The monitor must be mounted in an enclosure that meets a Type 4
rating.
Class I, Division 2 Guidelines
If you purchased a Class I, Division 2-compliant monitor, it is suitable for
use in Groups A, B, C, and D hazardous locations only. You must follow
these guidelines in order to maintain a safe operating environment.
Warning
Explosion Hazard — Do not disconnect equipment, replace
or insert cards unless the power has been switched off, or
the area is known to be safe.
Substitution of components may impair suitability for Class
I, Division 2.
