12
SAFETY
PRECAUTION
Step
Three
About
Manual:
PLEASE
READ
THE
ENTIRE
MANUAL
PRIOR
TO
INSTALLING
OR
USING
THIS
PRODUCT.
This
manual
includes
information
on
all
models
of
Omega
Engineering
Powered
Level
Switches:
LVU
‐
150
series,
LTU
‐
101A
series,
LVF
‐
210A
series
and
LVC
‐
152
series.
Please
refer
to
the
part
number
located
on
the
sensor
label
to
verify
the
exact
model
which
you
have
purchased.
User’s
Responsibility
for
Safety:
OMEGA
ENGINEERING
manufactures
a
wide
range
of
liquid
level
switches
and
technologies.
While
each
of
the
these
switches
are
designed
to
operate
in
a
wide
variety
of
applications,
it
is
the
user’s
responsibility
to
select
a
switch
model
that
is
appropriate
for
the
application,
install
it
properly,
perform
tests
of
the
installed
system,
and
maintain
all
components.
The
failure
to
do
so
could
result
in
property
damage
or
serious
injury.
Proper
Installation
and
Handling:
Because
this
is
an
electrically
operated
device,
only
properly
trained
staff
should
install
and/or
repair
this
product.
Use
a
proper
sealant
with
all
installations.
Never
over
tighten
the
sensor
within
the
fitting,
beyond
a
maximum
of
80
inch
‐
pounds
torque.
Always
check
for
leaks
prior
to
system
start
‐
up.
Material
Compatibility:
The
LVU
‐
150
series
and
LVF
‐
210A
series
sensors
are
available
in
two
different
wetted
materials.
Models
LVU
‐
150,
LVU
‐
152,
LVF
‐
210A
and
LVF
‐
212A
are
made
of
Polypropylene
(PP).
Models
LVU
‐
151,
LVU
‐
153,
LVF
‐
211A
and
LVF
‐
213A
are
made
of
Perfluoroalkoxy
(PFA).
The
LTU
‐
101A
series
is
made
of
PPS
(40%
glass
filled)
and
the
LVC
‐
152
series
is
made
of
PP.
Make
sure
that
the
model
you
have
selected
is
compatible
with
the
application
liquid.
To
determine
the
chemical
compatibility
between
the
sensor
and
its
application
liquids,
refer
to
an
industry
reference
such
as
the
Compass
Corrosion.
Wiring
and
Electrical:
The
supply
voltage
used
to
power
the
sensor
should
never
exceed
a
maximum
of
36
volts
DC
(30VDC
for
LTU
‐
101A
series)
.
Electrical
wiring
of
the
sensor
should
be
performed
in
accordance
with
all
applicable
national,
state,
and
local
codes.
Flammable,
Explosive
and
Hazardous
Applications:
DO
NOT
USE
THE
LVU
‐
150
SERIES,
LTU
‐
101A
SERIES,
LFV
‐
210A
SERIES
or
LVC
‐
152
SERIES
GENERAL
PURPOSE
SWITCH
IN
HAZARDOUS
LOCATIONS.
Warning
The
rating
for
the
relay
is
60
VA.
Omega
Engineering’s
powered
level
switches
are
not
recommended
for
use
with
electrically
charged
application
liquids.
For
most
reliable
operation,
the
liquid
being
measured
may
need
to
be
electrically
grounded.
Always
install
the
¾”
FKM
gasket
with
all
versions
of
the
powered
sensors
with
metric
(G)
threads.
The
metric
(G)
threaded
version
will
not
seal
unless
the
gasket
is
installed.