SEAM DETECTOR
Hall sensor for fabric dyeing machines
The Seam detector uses the Hall
Effect, which means the sensitivity is
not affected by machine speed or the
stainless wall of the machine. It can
be easily installed on the outside of
the machine.
The Seam detector is designed for
use on most types of fabric dyeing
machines. A sensor unit is mounted
on the outside of the machine at a
point near to where the fabric
passes. A magnet is sewn into the
fabric seam and this triggers the
sensor when it passes. A relay is
activated in a separate amplifier unit
for about 2 seconds, and the volt
free changeover contact on this relay
may be used as required.
Typical uses include stopping the
machine when the seam is found for
unloading, or checking that the
fabric is circulating within a particular
time frame.
