APG TLS Cable Suspended user manual - Manual (Page 6)

TLS Series Rev. A2, 8/09
6
Automation Products Group, Inc.
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• Principles of Operation
The reference figure below shows the fixing weight at the middle of the cable
hanging down from the tank top. Just past the fixing weight is a cable with a
flexible, moving tip which moves up and down with the float movement.
Approximately twice the cable flexible length is the ON/OFF control width.
The inside construction of the float is comprised of a stem fixed at the middle
part of float, with the reed switch set inside the stem. Two pieces of ring form
magnet are fixed externally around the stem. Between the two magnets is a seal
weight that moves up and down.