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4-wire cable shieldingFigure 3-4:
Assemble the Gland
1. Fold the shield or braid back over the clamping insert and 1/8 inch
(3 mm) past the O-ring.
2. Install the gland body into the conduit opening on the core processor housing.
3. Insert the wires through gland body and tighten the gland nut onto the gland body.
Apply the Heat Shrink
1. Slide the shielded heat shrink over the drain wires. Ensure that the
wires are completely covered.
2. Apply heat (250 °F or 120 °C) to shrink the tubing. Do not burn the
cable.
3. Position the clamping insert so the interior end is flush with the braid
of the heat shrink.
Cable shield
type
Braided
(armored cable)
Foil
(shielded cable)
Done
Terminate the shield
and drain wires in the
gland
Assemble the gland
according to vendor
instructions
Gland supplier
Micro Motion
cable gland
User-supplied
cable gland
From the preparation
procedure
After heat applied
Shield folded back
Gland body
Gland type M20
Trim 7 mm from the shielded
heat shrink
Shielded heat
shrink
Trim
NPT
4-wire cable types and usage
Micro Motion offers two types of 4-wire cable: shielded and armored. Both types contain
shield drain wires.
The 4-wire cable supplied by Micro Motion consists of one pair of red and black 18 AWG
(0.75 mm
2
) wires for the VDC connection, and one pair of white and green 22 AWG
(0.35 mm
2
) wires for the RS-485 connection.
User-supplied 4-wire cable must meet the following requirements:
Wiring
Installation Manual 37