Omega Products LV3123-48-HT User Manual

CAPACITANCE CONTINUOUS
LEVEL MEASUREMENT
PROBES

LV3000/4000 Series

Starts at

$

636

LV4021-24, $786,

shown smaller

than actual size.

 Can Operate at High

Temperatures and
Pressure

 Unaffected by

Coating Media

 Accurate and Reliable

Measurement

 Easy, Economical

Installation

 Rugged Construction
 No Moving Parts
 Compatible with Both

Conductive and
Non-Conductive Media

 Wide Range of

Applications/Industries
(e.g., Water, Oils,
Corrosives)



Sanitary Mount
Available

iSeries CNi16D33

controller, $245,

shown smaller than

actual size. Visit

omega.com/cni_series

The LV3000/LV4000 Series
continuous level measurement
probes are flexible, cost-effective
solutions for applications involving
liquids, pastes, and some solids.
The built-in (one-piece) electronic
module provides a 4 to 20 mA
output (2-wire) signal that is
proportional to the process level.
Zero and span adjustment helps
account for various media, tank
dimensions, rod lengths, and
positions of installation.

OMEGA®offers these probes in
several different models. The user
must choose the probe that suits
his or her application and install it
in the proper location. When
submerged, the probe must be able
to produce enough capacitance
variance. The probe’s success
depends on these important factors:

A) Conductive materials can cause
a short circuit between a bare
stainless steel probe and the
tank wall. For this situation, we
recommend using PTFE sleeving
on the rod surface.

K-20

B) Material buildup affects the

K

accuracy of RF capacitive
measurements. Additional
adjustment to the probe’s sensitivity
is therefore recommended.

Housings must be compatible with
the requirements for hazardous,
washdown, wet, or dusty
environments. For explosion-proof
environments, the housing may
need to be certified. In addition, the
active probe might need to be
intrinsically safe or have an intrinsic
safety barrier.

The electronic circuitry of the probe
performs several functions, such as
rectifying and filtering the incoming
power, generating the radio
frequency signal, and measuring
the changes in current flow.

SPECIFICATIONS
(LV3000 SERIES)

Accuracy: 0.5%
Repeatability: ±1 mm
Level Indication:

Bar graph, 0 to 1000%

Process Connection:

3

1

/

4 to 1

/

2 NPT, Tri-Grip

TM

or flange

Wetted Material: 316 SS or PTFE
Enclosure Material: Aluminum die cast
Max Pressure: 290 psi (20 bar)
Operating Temperature: -10 to 120ºC

(14 to 248ºF)

Class Protection:

LV3000: NEMA 4 (IP65)

LVCN410: IP40
Max Probe Length: 1.8 m (6')
Dimensions:

Aluminum Die-Cast Head:

89 W x 108 mm H (3.5 x 4

Diameter of Probe: 16 mm (
Electrical Connection: Cable gland

1

with

/

2 NPT conduit

Note: The LV3000 Series probes require a
LVCN400 Series controller.

1

/

4")

5

/

8")

SPECIFICATIONS
(LVCN410 SERIES)

Operating Voltage: 24 Vdc, 110 or

240 Vac (50/60 Hz)

Current Consumption: 4 mA
Adjustment: Zero and span

(potentiometer) and 2 switch point
(potentiometer)

Range of Sensitivity: 50 to 1000 pF
Output: 4 to 20 mA and 2-relay SPDT
LVCN411/LVCN412:

73 W x 110 H x 110 mm L

7

(2

⁄8 x 43⁄8 x 43⁄8")

SPECIFICATIONS
(LV4000 SERIES)

Accuracy: 0.5%
Repeatability: ±1 mm
Operating Voltage: 12 to 30 Vdc
Adjustment:

Zero and span (potentiometer)

Range of Sensitivity: 100 to 5500 pF
Frequency Oscillation: 400 kHz
Output: 4 to 20 mA (2-wire)
Process Connection:

3

1

/

4 to 1

/

2 NPT, Tri-Grip or flange

Wetted Material: 316 SS or PTFE
Enclosure Material: Glass-filled nylon

or aluminum die cast

Max Pressure: 290 psi (20 bar)
Operating Temperature:

-10 to 120°C (14 to 248°F)

Class Protection: NEMA 4 (IP65)
Max Probe Length: 1.8 m (6')
Dimensions:

Nylon Head: 89 W x 64 mm H

(3.5 x 2.5")

Aluminum Die-Cast Head:

89 W x 108 mm H (3.5 x 4.25")

Diameter of Probe: 16 mm (

Electrical Connection:

Cable gland with

Note: The LV4000 Series probes require a
galvanic isolator, LI-420.

1

/

2 NPT conduit

5

/

8")

SPECIFICATIONS
(LI-420)

Input Current from the Evaluation
Instrument: 4 to 20 mA

Input Voltage: 22 to 24 Vdc
Output Current: 4 to 20 mA
Output Voltage to the Transducer

at 20 mA: 12.5 V
Output Voltage to the Transducer

at 4 mA: 15.5 V
Resistance per Conductor: 15 Ω
Testing Voltage:

Input/output circuit: 2000 V

Domestic Current Demand:

300 ±60 µA

Ambient Temperature:

-20 to 70°C (-4 to 158°F)

Enclosure Dimensions:

44 W x 82 H x 110 mm L

3

1

/

4 x 4

3

/

8")

(1

/

4 x 3

eff

LI-420, $390, shown
actual size.

LV4121-36, $1056, shown
smaller than actual size.

K-21