8
ELECTRICAL
Step
Five
Supply
Voltage:
The
supply
voltage
to
the
LVP
‐
51
‐
R
level
switch
should
never
exceed
a
maximum
of
36
VDC.
OMEGA
ENGINEERING
controllers
have
a
built
‐
in
13.5
VDC
power
supply
which
provides
power
to
all
of
OMEGA
ENGINEERING’s
electrically
powered
sensors.
Alternative
controllers
and
power
supplies,
with
a
minimum
output
of
12
VDC
up
to
a
maximum
output
of
36
VDC,
may
also
be
used
with
the
level
switch.
Required
Cable
Length:
Determine
the
length
of
cable
required
between
the
level
switch
and
its
point
of
termination.
Allow
enough
slack
to
ensure
the
easy
installation,
removal
and/or
maintenance
of
the
sensor.
The
cable
length
may
be
extended
up
to
a
maximum
of
1000
feet,
using
a
well
‐
insulated,
14
to
20
gauge
shielded
four
conductor
cable.
Wire
Stripping:
Using
a
10
gauge
wire
stripper,
carefully
remove
the
outer
layer
of
insulation
from
the
last
1
‐
1/4"
of
the
sensor's
cable.
Unwrap
and
discard
the
exposed
foil
shield
from
around
the
signal
wires,
leaving
the
drain
wire
attached
if
desired.
With
a
20
gauge
wire
stripper,
remove
the
last
1/4"
of
the
colored
insulation
from
the
signal
wires.
Signal
Outputs
(Current
sensing):
The
standard
method
used
by
OMEGA
ENGINEERING
controllers;
this
technology
uses
only
two
wires
(Red
and
Black).
The
sensor
draws
5
mA
when
it
is
dry
and
19
mA
when
wet.
NC/NO
status
must
be
set
by
the
controller.
The
White
and
Green
wires
are
not
used.
