RF Capacitance Point Level Sensors |
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¥
4,970.00
LV801
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Superior 0.5 pF Sensitivity Ensures Reliability
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Build-Up Immunity Helps Eliminate False Signals
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High Intensity LED Indicating Light (Ordinary Location Integral Sensors Only)
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Simple 2-Step Manual Calibration
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View related products - Level Switches & Transmitters
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LV800 Series RF capacitance
sensors offer cost-effective point
level monitoring with reliability you
can count on. Omega provides you
with the most affordable solution for
your application. Omega’s RF
switch probes are designed to
provide a high level of sensitivity,
stability and durability for powder
and bulk solids applications, as well
as liquid and slurry applications.
Principal of Operation
A radio frequency is applied to the
probe and is continually analyzed to
determine the influence caused by
the surrounding environment. As
material contacts the probe, the
radio frequency shifts indicating an
increase in capacitance (C). The
active probe of the unit and the
vessel’s wall make up the two
plates (A=area) of a capacitor
which are separated by a fixed
distance (d). The probe’s insulator
and surrounding air provide the
dielectric material (with dielectric
constant “K”). As the air (K=1.0) is
displaced with any other material
(K > 1.0), the capacitance effect (C)
is enhanced, thereby changing the
application’s impedance.
This influence is measured within
the circuitry and compared to a
reference established by the
sensitivity setting. The setting
determines how much influence
must be present before the output
changes. The driven shield section
of the probe enables the circuitry to
ignore product build-up on the
probe that would otherwise cause
false sensing. The driven shield is
activated with the same radio
frequency potential as the sensing
probe. Since current can not flow
between identical potentials, the
driven shield blocks current flow
from the active probe to the vessel
wall through the material build-up,
thereby eliminating the sensing of
the material build-up.
Applications
LV800 Series capacitance point
level sensors are versatile devices
providing high and low level
readings in bins, silos, tanks,
hoppers, and other vessels. LV800
Series superior sensitivity range
allows users to properly adjust units
to meet the needs of a wide variety
of applications. Whether your
application is for a powder, liquid,
granular solid, or viscous material,
the LV800 Series product line offers
the right solution.
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† Price are shown in RMB.
Note: Comes complete with operator's manual.
Ordering Example: (1) LV801 PPS probe 115 Vac 11/4" NPT AL connection, ¥4,970.00
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