AM-ENCT ANALOG MULTIPLEXER ENCLOSURE
2
2. SPECIFICATIONS
Dimensions:
External: 11.3" W x 13.5" L x 5.56" D
Internal: 10" W x 12" L x 5.25" D
Weight
: approx. 12.6 lbs.
with AM416 installed: approx. 14.2 lbs.
with AM32 installed: approx. 14.0 lbs.
shipping: approx. 18.0 lbs.
NEMA Rating
: Prior to modification--
3,3R,3S,4,4X,6,6P,12,13.
Lid attachment
: Hinged; sealed with poured-
in-place internal gasket. Un-hinged side
secured with two captive screws.
Conduit diameter
:
with reducing plug: 0.5"
without reducing plug: 1.25"
3. INSTALLATION
If the multiplexer was not installed at the factory,
the enclosure will contain a small plastic bag
with the following parts:
(4) 3/8" screws
(4) #6 washers
(4) 3/8" spacers
3.1 AM416
The AM416 requires two 3/8" screws to attach it
to the mounting plate. The additional enclosed
hardware is not required for AM416 installation.
Tools required: #1 Phillips screwdriver, flat-
bladed screwdriver
1. Remove the four phillips screws at the
corners of the AM416 and remove the cover
plate. Care must be taken when removing
the upper plate of the multiplexer. It is
generally easiest to lift the edge opposite
the strain relief flange up first, then slide the
plate out. Make sure to clear the terminal
strips.
2. Remove the two screws at the center of the
printed circuit board and then remove the
printed circuit board. Place the board on a
clean, dry surface.
3. Remove and dispose the four rubber feet
from the back panel of the AM416.
4. Open the AM-ENCT enclosure and remove
the cover plate and foam insulation (Figure
1). The multiplexer mounts to the backplate
labeled "1A" in Figure 1.
5. Align the two holes through the back panel
of the multiplexer with the holes on the
mounting plate. Attach the back plate of the
AM416 to the mounting plate with two 3/8"
screws from the plastic bag.
6. Reassemble the multiplexer.
7. Re-insert the insulating foam and attach the
AM-ENCT cover plate.
3.2 AM32
The AM32 requires four 3/8" screws, four
spacers, and four washers to attach it to the
internal mounting plate.
Tools required: flat-bladed screwdriver
1. Assembly of the AM32 and AM-ENCT is the
same as the AM416 except that
disassembly of the multiplexer is not
required.
2. Install the four 3/8" spacers in the enclosure
base mounting plate.
3. Attach the AM32 to the base mounting plate
with the four 3/8" screws and washers.
4. Re-insert the insulating foam and attach the
AM-ENCT cover plate.
3.3 MOUNTING ENCLOSURE
Two 1.25" x 5/16" U-bolts (provided) attach the
enclosure to a 1.25" schedule 40 pipe. The U-
bolts and brackets can be removed to mount
the enclosure against a flat surface. Four user-
supplied 5/16" diameter screws or bolts can be
used for this purpose. The type and length of
the screws or bolts depends on the composition
of the supporting surface. To prevent damage
to the fiberglass enclosure, use the washers
from the U-bolt bracket and do not over-tighten
the mounting screws (bolts).
