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
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
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.
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
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
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
LVCN-200 Series conductive liquid
on/off level controllers are used to
power all level probes. The LVCN-
200 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
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
Both models are available with
DIN rail sockets or with screws.
SPECIFICATIONS FOR LVCF/LVCR/LVCP SERIES Process Connection: ½, ¾, 1½ 2 NPT, Tri-Grip Sanitary or flange, others available Electrical Connection: Cable gland and 1.2 NPT conduit Electrodes: 316 SS, ¼" diameter Electrode Length: 100 mm to 2 m (0.33 to 6.56') Pendular Cable Length: 500 mm to unlimited (1.64' to unlimited) Enclosure Material: Standard: Glass-filled nylon Optional: Aluminum die cast Temperature Range: -10 to 120°C (14 to 248°F) Max Pressure: 290 psi (20 bar) Protection Class: NEMA 4 (IP65)
SPECIFICATIONS FOR LVCN-200 SERIES
Power Supply for LVCN-201 and LVCN-203: 24 Vdc ±10% Power Supply for LVCN-202 and LVCN-204: 115 Vac (50/60 Hz) Power Supply for LVCN-202-230VAC and LVCN-204-230VAC: 230 Vac Current Consumption: Max 3 VA Adjustment: Potentiometer switch point Range of Sensitivity: 0.1 to 50 kΩ Output: 5 A SPDT relay (250 Vac max)
† All amounts shown in USD Note: Comes complete with operator’s manual.
For custom versions consult Omega Flow Engineering for quote.
Additional Process Connections are available; consult Omega Flow Engineering for availability and quote.
Ordering Example: (1) 70A-1 Continous Tone Alarm, $25.00 plus (1) LVCN-204 115VAC Controller for two independant levels, $310.00 plus (1) TX4-100 4 conductor wire, 100 foot spool, $35.00, $25.00 + 310.00 + 35.00 = $370.00
Part Number Builder
Build Your Part Number Below
Rod select from: F for Fixed rod R for Removable rod P for Pendular rod
Rods/Electrodes select from: 1 for 1 Rod/electrode. Single point detection 2 for 2 Rods/electrodes. Min/max detection 3 for 3 Rods/electrodes. 3-Point detection 4 for 4 Rods/electrodes. 4-Point detection 5 for 5 rods/electrodes. 5-Point detection
Process Connection select from: 1 for 1/2 NPT thread (LVCF-1 LVCR-1 LVCP-1 only) 2 for 3/4 NPT thread (LVCF/LVCR/LVCP-1 or 2 only) 3 for 1 NPT thread (LVCF/LVCR/LVCP-1 2 or 3 only) 4 for 1 1/2 NPT thread (LVCF/LVCR/LVCP-1 2 3 or 4 only) 5 for 1.5 inch Tri-GripTM sanitary (LVCF/LVCR-1 2 or 3 only) 6 for 2 inch flange ANSI 316 SS (all models) 7 for 2 inch Tri-GripTM sanitary (LVCF/LVCR-1 2 3 or 4 only)
Enclosure select from: 1 for Glass filled nylon with 1/2 NPT conduit with cable gland 2 for Aluminum die cast with 1/2 NPT conduit entry 3 for Aluminum die cast with cable gland entry
Rod Length/Cable Length (For custom length contact our sales team for pricing.) select from: 12 for 12 inch 24 for 24 inch 60 for 60 inch 72 for 72 inch 96 for 96 inch
Additional Option select from: Nothing(leave field blank) for None -ETFE for ECTFE/ETFE coating for LVCF or LVCR rod sensors
Note: All combinations may not be valid, check spec sheet for valid part numbers.