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Mounting Procedure for Panel Mount RD-300/232
Use the following procedure if panel mounting the RD-300/232. A template for measuring is shown on page 17.
1. Choose a desired location for mounting the RD-300/232. Make sure there are no AC wires or other
obstructions behind the area to be cut out.
2. Use the enclosed template to mark the panel holes. Note that all holes are measured center to center.
3. Transfer the holes onto the desired panel. Start from one side and make all other measurements starting
from that side. Using this method reduces errors. Try to mark the center of the holes. Drill the four
OUTER holes with a #.228 or 15/64" drill bit.
4. Drill the INNER four holes with a #.156 or 5/32" drill bit.
5. When the holes have been drilled and checked for accuracy, cut the hole for the display as shown on the
template. Make the edges as smooth as possible because the front plate must lay flush on top of it.
6. Detach the circuit board from the front plate and remove the nut and lockwashers from the mounting
screws. Place the front plate on the panel from the front and push the mounting screws and studs through
the holes as shown in Figure 3-1.
Have someone hold it or secure it with removable tape while putting the lockwashers and nuts back on
the mounting screws and tighten.
Note: you will find that the mounting studs 8-32 x 3/4", have nuts and lockwashers included. If you lose
one, they can be replaced at most local hardware stores.
7. Check from the front to make sure the edges of the cutout do not show through the window and that the
front plate is lying flat against your panel. Remount the circuit board with the original screw and plastic
washers.
8. Proceed with wiring instructions per manual instructions.
Figure 3-1. Mounting Procedure for Panel Mount
Mounting Procedure for Panel Mount RD-300/232
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