KROHNE VFM 3100 EN - Manual (Page 14)

For installations where the provided pre-dressed remote signal cable
is not used, both ends of the cable being used must be prepared per
the instructions in Tables 4 and 5 of document. The cable must be
connected at both ends per instructions on Tables 6 and 7 on Pages
14
17 and 18. Terminate wires at J-Box following Figure 9 on Page 16.
At housing end, wires should be terminated at 4-position terminal
block on rear of electronic module as shown in Figure 9.
1. Slide the knurled nut and then the rubber bushing onto
outer jacket of cable as shown at right. Next, remove outer
polyethylene jacket of cable to dimension shown.
2. Cut and remove braided copper shield to dimension shown
at right. This will expose the barrier (plastic) tape and foil
mylar that encloses the conductors.
3. Cut and remove the barrier tape, foil mylar and fillers to
dimension shown at right. This will expose two twisted
pairs of conductors (brown-yellow, orange-red) and an
uninsulated drain wire. The barrier tape under the copper
braid prevents the drain wire from shorting to the copper
braid shield.
4. Trim the uninsulated drain wire to dimension shown at right.
To expose bare conductors for termination, cut and strip
ends of the two twisted pairs to dimension shown.
5. Fold drain wire back onto the copper braid as shown at
right. Label outer cable jacket „VFM 3100 End” to avoid
confusion during installatin. Cable is now ready for
installation.
VFM 3100 End (Junction Box End) Procedures
Knurled nut
Outer polyethylene
jacket
Outer polyethylene
jacket
Rubber bushing
191 mm (7.5 in)
Copper braid
Knurled nut
Rubber bushing
25 (1.0) 165 mm (6.5 in)
Copper braid
Barrier tape and
foil mylar
Outer polyethylene
jacket
Knurled nut
Rubber bushing
Copper braid
Barrier tape and
foil mylar
Knurled nut
Outer polyethylene
jacket
Label cable
jacket
Rubber bushing
Copper braid
Barrier tape and foil mylar
25 (1.0) 165 mm (6.5 in)
Two twisted pairs
Uninsulated drain wire
Outer polyethylene
jacket
Knurled nut
Rubber bushing
Copper braid
do not tape
6.4 mm (.25)
cut and strip
4 places
25 (1.0) 165 mm (6.5 in)
25 (1.0)
Two twisted pairs
Uninsulated drain wire
Bare conductor (4 places)
Two twisted pairs
Uninsulated drain wire
VFM 3100
end
Table 4. Preparation of Remote Signal Cable