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Permasense Ltd, Alexandra House, Newton Road, Manor Royal, Crawley, RH10 9TT, UK
www.permasense.com
+44 20 3002 0922
When installing multiple sensors on one strap it is important to ensure the strap makes contact with the
pipe between each of the sensors and the tensioner.
Maintaining this spacing and the length of the strap provided, determine the maximum number of sensors
that can share the same strap for a given pipe size.
Pipe size
2” to 9”
10” to 22”
24” to 36”
40”
Maximum permitted number of sensors
1
2
3
2
This also restricts the locations you can mount multiple sensors on a pipe using a single strap. If closer
spacings are desired, multiple straps must be used.
Note:
When mounting multiple sensors on a single strap, only one tensioner is required.
10.
Ensure the strap tensioner, strap
and sensor(s) are in line before
tightening the 2 worm-screws on
the strap tensioner.
Note:
This step is critical to the
strap tensioner functioning as
intended. Check alignment before,
throughout and after step 11.
11.
Tighten both worm-screws with the flathead screwdriver or wrench and socket provided, ensuring the
tensioner does not slide relative to the pipe. As the worm-screws are tightened, observe the position
of the metal plate on top of the spring through the + shaped cut-out on the side of the tensioner. The
correct tension is set when the plate is aligned with wide part of the middle of the cut-out as shown in
the images below.
Note:
When the worm-screws are tightened, the springs in the tensioner are compressed. To avoid
the strap becoming lose or over-tightened when the pipe temperature changes, it is important that the
spring is set to the correct tension. Do not over-tighten the worm-screws.
