P
AGE
8
FIGURE 2-1
Preparation for Wiring 2.5
2.5.1 WIRING GUIDELINES
Electrical noise is a phenomenon typical of industrial environments. The following are
guidelines that must be followed to minimize the effect of noise upon any instrumentation.
2.5.1.1 INSTALLATION CONSIDERATIONS
Listed below are some of the common sources of electrical noise in the industrial
environment:
• Ignition Transformers
• Arc Welders
• Mechanical contact relay(s)
• Solenoids
Before using any instrument near the devices listed, the instructions below should be
followed:
1. If the instrument is to be mounted in the same panel as any of the listed devices, separate
them by the largest distance possible. For maximum electrical noise reduction, the noise
generating devices should be mounted in a separate enclosure.
90.4
(3.560)
90.4
(3.560)
PANEL
CUTOUT
SIZE
96.0 (3.78)
96.0
(3.78)
92 + or - 0.8
(3.622 + or - .031)
4.8 (.188) MAX PANEL THICKNESS
All dimensions shown
in mm and inches. Inches
shown in ( ).
92+ or-.8
(3.622
+ or-.031)
165.9 (6.53)
146.8 (5.78)
Side View
Top View
Mounting Bracket
Mounting screw
Panel