Installing the sensor cable
Page 24
FlexPS Product Guide
Mark 2 cable conditioning
Before installing Mark 2 sensor cable, the cable must be conditioned. Prior to conditioning, there
may be excess center conductor in the cable, or the center conductor may be adhered to the cable
side walls after the manufacturing process. Conditioning frees the center conductor and
maximizes its movement, thereby providing the greatest sensitivity. Cable conditioning requires
two people to complete and typically takes less than 10 minutes for a 150 m sensor cable.
Cable
conditioning
procedure
(part 1 - loosening the center conductor)
1.
Dispense the sensor cable alongside the fence in a long straight line.
2.
Carefully remove 30 cm (12 in.) of the outer jacket, shield and clear tube to expose 30 cm of
the center conductor at both ends of the cable.
3.
Check the ends of the cable to verify that the center conductor is free to retract or extend
(i.e., the cable end is not pinched, flattened, twisted, bent, or distorted). If an end is damaged
enough to prevent the free movement of the center conductor, cut off the damaged section.
4.
At both ends of the cable, use a cable tie, or a 2.5 cm (1 in.) piece of the outer jacket, to secure
the center conductor to prevent it from retracting into the cable during the conditioning
procedure.
5.
At one end of the sensor cable, the first person firmly holds the sensor cable by the black
jacket with one hand, while using the other hand to grip the center conductor with a pair of
pliers (see
6.
Apply 2 kg (4.5 lb) of pulling tension to the center conductor with the pliers while maintaining a
firm grip on the cable’s black jacket.
Note
MEX sensor cable does not require conditioning.
Note
Cable conditioning is required for both standard Mark 2 sensor cable
and Mark 2 Armour-FLEX sensor cable. For Armour-FLEX cable, see
Mark 2 Armour-FLEX cable conditioning procedure on page 41
.
Figure 11: Exposing the center conductor
Figure 12: Securing the center conductor
expose 30 cm (12 in.) of the center conductor
ensure the exposed center conductor
is free to extend or retract
30 cm
(12 in.)
NOT bent
NOT twisted
NOT flattened
secure the center conductor at both ends to prevent it
from retracting into the outer jacket during conditioning
cable tie
outer jacket