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Installation
2.3 Location
Install the instrument in a control panel located in a control room or in a relatively clean factory
environment. It should not be installed in offices or residential locations.
The front of the instrument is gasketed and will provide reasonable protection from dust and moisture when
properly installed in a panel.
The instrument must be panel mounted and terminals must be enclosed within panel to maintain safety
compliance.
2.4 Mounting
Figure 2-1 illustrates how the instrument is attached to a panel. Make the panel cutout as shown in Figure
2-1. Note that the panel may be up to 19.05 mm (0.75") thick.
To mount the instrument to the panel, follow the procedure in Table 2-1. Note: For instruments with the
seismic mounting option, refer to the separate mounting instructions.
Step
1
Place the instrument in the panel cutout as shown in Figure 2-1 or Figure 2-2.
2
Remove the screw from the top and bottom rear center of the instrument.
3
Engage the rounded projection on the mounting T-bar in the slot on the top of the instrument's case.
Note the end with the notch. For thin panels (up to 7.92 mm (5/16")), place the notched end toward
the panel. For thick panels (up to 12.7 mm (1/2")), place the notched end away from the panel. For
thicker panels, up to 6.35 mm (1/4") can be cut off the unnotched end.
4
Slide the bar up against the panel and insert the screw at the end of the case as shown. Check the
fit and alignment of the instrument and tighten the screws on the top and bottom to 3 LB-IN (.35 N-
M) of torque maximum. See Table 2-2 for proper screw length.
5
Install the second T-bar and screw in the slot on the bottom of the case in the same way.
6
Check the fit and alignment of the instrument and tighten the screws on the top and bottom to 3LB-
IN (.35 N-m) maximum torque.
WARNING
Use proper screw length to prevent Electric Shock.
For Panel thickness:
1.52 mm (.06") to 4.8 mm (3/16")
4.8 mm (3/16") to 8 mm (5/16")
8 mm (5/16") to 12.7 mm (1/2")
12.7 mm (1/2") and thicker
16
Table 2-1 Panel Mounting Procedure
Action
Table 2-2 Screw Lengths for Panel Thicknesses
12 mm (15/32")
8 mm (5/16")
8 mm (5/16")
8 mm (5/16") and cut t-bar as noted in Step 3 of Table 2-1.
VPR & VRX – User Manual
Use screw length:
12/00
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