Switches, Sensors & Systems
Rotech Systems
Number One
For Screen
Monitoring
Solutions
Rotech Vibration Sensor – VS4000 Series
M
ost modern
screens are
designed with the
benefit of modern
CAD & computer simulation
techniques and can cope with
a wide range of operational
conditions under very different
applications.
However, variations in feed
rates and composition of the
material being processed can,
in some circumstances, result
in an excessive amount of
material being on the screen
at any one time. If, as a
result, the rate and speed of
vibration of the screen slows
down, even temporarily,
problems can quickly occur,
causing blockages, stoppages,
downtime etc, inevitably
leading to a major situation
& proving to be very costly to
rectify.
Material continues to be fed
on to the screen at the normal
rate but the slowdown causes
the discharge rate to be
reduced, a marginal overload
can quickly enter a runaway
situation with material arriving
at the screen causing an
ever increasing overload and
further slowdown.
Mechanical failure, V-belt
‘burn off’ or the intervention
of the drive motors electrical
overload is often the first time
the operator will know that all
is not well.
Rotech’s Vibration sensor
VS4000 fitted to a screen
is designed to monitor its
rate of vibration and will
operate an alarm or switch
the in-feed conveyor off if
the screen slows down. Even
a drop in speed of 5% for
a few milliseconds can be
detached and action taken
almost instantaneously. On
V-belt-driven screens the
drive motor can be switched
off the moment any slippage
occurs, preventing extensive
& expensive damage to the
belts.
The VS4000 signal output
can be connected to the
Plant Control PLC/Computer
Rotech’s Vibration
sensor VS4000 fitted
to a screen is designed
to monitor its rate
of vibration and will
operate an alarm or
switch the in-feed
conveyor off if the
screen slows down.
On V-belt-driven
screens the drive
motor can be
switched off the
moment any slippage
occurs, preventing
extensive & expensive
damage to the belts.
The VS4000
signal output can
be connected to
the Plant Control
PLC/Computer
or independently
used with the
Rotech Vibration
Relay – SR4000