IL - The> BulkSonics® Low
Cost Liquid Smart Transmitter is a smart, compact level
transmitter. Using non-contact ultrasonic principles, the
transmitter offers excellent performance and value for
a wide range of liquid applications. The non-contact feature
of ultrasonic technology makes these products ideal for
use with corrosive or sticky materials and other factors
that make contact level measurement impractical, unreliable
measuring ranges are available. The Model LST60e has a range
of 33 feet (10 m). The Model LST80e has a range of 20 feet
(6 m). Each unit is provided with a scalable 4-20mA output
and a relay. HART® communications can also be provided.
and setup of the LST60e/LST80e low cost smart transmitters
is accomplished via simple touch-magnet system. A second programming
option is detailed setup via HART® communications.
Solids Level Sensor
Provides Application Versatility
IL - Monitor Technologies' new VibraRod vibrating
rod sensor provides reliable point level sensing in a wide
variety of applications within powder and bulk solids market.
This easy to setup sensor requires no calibration and provides
reliable solid state electronic circuitry.
single-probe vibrating rod design utilized by the VibraRod overcomes
typical application difficulties associated with changes
in material, electrical dielectric constant, temperature
or humidity. Using a single-prong probe eliminates the potential
problems such as material build-up and false signaling, which
are associated with dual-prong "tuning-fork" type
The VibraRod line
of vibrating rod point level sensors is offered in standard
length, cable extension or pipe extension versions. The standard
length version extends into a vessel approximately 9 inches
(235 mm). The pipe extended version can be used to extend
the measuring rod up to 118 inches (3 m) and the cable extended
unit can be used to extend the probe up to about 65 feet
(20 m). Each version can be provided with either a plastic
or aluminum housing. All VibraRod units
are provided with local indication using a bi-color LED and
a traditional relay output.
The TrueCap® Model MK-2
RF Capacitance point level probe is designed to provide a superior
and stable sensitivity threshold making it suitable for a variety
of powder / bulk solids and some liquid or slurry applications.
Advanced features of the Model MK-2 include: > Automatic immunity to material build-up on
the probe by its driven shield design > Push-button calibration > Enhanced temperature compensation > Maximized reliability via smart sensing algorithms
like “self-validating” fail-safe protection > Visible status LED on ordinary location units > Versatility through a variety of configuration
options including: hazardous location version, split architecture
design, quick-connect process connection, stub probe, cable extensions,
solid extensions, Nylon® probes, Ryton® - equiv. probes,
A practical application for the TrueCap would be to use this level sensor where
a residual material build-up on a different sensor would cause a false material
Principle of Operation for the TrueCap RF Capacitance Level
The vessel wall and the active probe element establish an impedance reference
between each other when exposed to air which has a dielectric constant of 1.
When materials with a dielectric constant greater than 1 are in close proximity
to the probe, the impedance of the sensing field between the sensor and the vessel
wall will change. Once the amount of change exceeds a threshold that was electronically
determined during the calibration process, an output relay will either be energized
or de-energized depending upon the position of the fail-safe selector on the
probe’s electronic circuit board. A change of as little as .5 pico-farad
is all that is necessary for the probe to sense the presence of material.