Omega Products LVCF-111-12-ETFE User Manual

CONDUCTIVITY LEVEL SWITCHES

LVCR-441-12, $558, shown
smaller than actual size.

LVCF/LVCR/LVCP Series

Starts at

$

234

LVCR units with removable
rods are available with varied
rod lengths for custom
applications. Consult Flow
Engineering for details.
Rods can also be shortened
in the field.

LVCN-201 relay, $225,

shown smaller

than actual size.

⻬ Easy to Install and Operate
⻬ Rugged Construction
⻬ Low Cost
⻬ Removable Rods
⻬ Up to 5 Points of Level

Control

⻬ Rods Can be

ECTFE/ETFE Coated

⻬ Available with 316 SS

Tri-Grip

TM

Sanitary, Flange,
or Threaded Connections
Models

⻬ LVCF (1-5) Fixed Rods
⻬ LVCR (1-5) Removable Rods
⻬ LVCP (1-5) Pendular

Electrodes

⻬ CLE-P Pendular Electrode

Without the Housing

⻬ LVCN-200 Series Controllers

OMEGA’s conductivity level
switches offer a wide range of
customized options to meet any
application’s needs. They are
designed to control the level of all
conductive mediums, offering up to
5 different points of level control.
Models are available with fixed rigid
rods, with removable rigid rods, or
with pendular electrodes attached
to the housing with cables. These

switches suit applications involving
both alarm point detection and on/off
pump valve control. Installation is
easy and operation is
maintenance-free.

The probes work through the
variation of the electrical resistance
between the reference electrode and
the level-control electrode.
Conductivity level switches detect
the level resistance when their
electrodes are covered by the
medium.

An electrically conductive tank wall
can be used as the reference
electrode. If the tank is made of
plastic, concrete, or any other non­conductive material, an additional
electrode is required as a reference.

The LVCF switches can
accommodate up to five 316 SS
fixed rods for 5 different levels of
control. The rods are isolated with a
TFE bushing and can be coated with
ECTFE/ETFE when the probe is
used with aggressive or sticky media
that cause buildup. The user can
easily modify operating levels in the
tank by cutting the length of the
electrodes. The LVCF switches are
rugged and compact and have no
moving parts. This makes them
reliable for controlling conductive
media as well as for high-pressure
applications.

K-X

LVCF models are compatible with
LVCN-200 Series controllers only.

The LVCR models offer the same
features as the LVCF, plus
removable 316 SS threaded rods
that make it possible to switch the
rods. Rods can be ordered
separately in longer length and can
then be custom cut. Removable
rods make the system more
versatile, easier to handle, and
more forgiving if the rod’s length is
cut incorrectly.

LVCR models are compatible with
LVCN-200 Series controllers only.

Along with the same features as the
rigid rod probes, LVCP pendular
probes can accommodate up to
5 model CLE-P electrodes. The
LVCP probes are ideal for deep
measurements in wells or large
tanks where long rods would be
impractical, but they work equally
well for shorter-length applications.
The electrodes are suspended from
PVC cables that allow for longer
lengths, as well as for different
applications and installations. LVCP
models are compatible with
LVCN-200 controllers.

LVCR Mounting Diagram

Minimum and maxium level
using an electrode as reference

Minimum and
maxium level

1 Level

The electrode model CLE-P is the
simplest version of all conductivity
probes. A small polypropylene
enclosure houses a 316 SS rod that
is attached to a PVC cable. This
option eliminates the need for a
process connection.

LVCN-200 Series conductive liquid
on/off level controllers are used to
power all level probes. The LVCN­200 models are electronically
controlled devices that open and
close an electrical contact to effect
the operation of other devices in the
same, or another, electrical circuit.

The LVCN-201/202 models can
control the differential of minimum
and maximum level, with an
adjustment for sensitivity. The relay
has 1 reverse SPDT contact.

The LVCN-203/204 models control
2 independent levels and 2 reverse
SPDT contacts. They also include a
sensitivity adjustment.

The LVCN-200 Series is designed
so that multiple units can be used in
combination to provide a variety of
control functions, including multiple
alarms and on/off control for
alternating pumps.

Both models are available with
DIN rail sockets or with screws.

SPECIFICATIONS
(LVCF/LVCR/LVCP)

Electrical Connection: Cable gland

with ½ NPT conduit
Electrodes: Available in configurations

from 1 to 5 electrodes
Fixed Rod Length: 100 mm to 2 m

(3.9" to 6.5')
Pendular Cable Length: 500 mm

(19.7") to 20 m (65.6')
Enclosure: Glass filled nylon or die

cast aluminum; NEMA 4 (IP65)
Operating Ambient: -10 to 120°C

(14 to 248°F); 20 bar (290 psi) max

COMMON SPECIFICATIONS
(LVCN-200)

Power: 24 Vdc ±10%, 115 or 230 Vac

(50/60 Hz)
Sensitivity: 0.5 to 50 kΩ;

potentiometer adjust
Operating Ambient: -10 to 60°C

(14 to 140°F)
Enclosure: ABS; DIN rail mount or

screw attachment; IP40 protection

K-X

LVCP, shown
smaller than
actual size.
LVCP switches
are available with
varying cable
lengths to
monitor and
control different
fluid levels.
Cables may also
be shortened by
the user. Consult
Flow Engineering
for details.

LVCP Head

LVCP Probes

K

SPECIFICATIONS
(LVCN-201/202)

Application: Min and max

level control

Current: 2 VA max
Output: SPDT relay,

5 A @ 250 Vac
Time Delay: 0.1 to 5 sec,

adjustable

SPECIFICATIONS
(LVCN-203/204)

Application: Control of 2

different levels

Current: 3 VA max
Output: Dual SPDT relays,

5 A @ 250 Vac
Time Delay: 1 sec, fixed