for Difficult Applications
IL - With
state-of-the-art technology and multiple options, BulkSonics® can
provide non-contact ultrasonic continuous level measurement
in even the most difficult bulk solid and liquid applications.
The BulkSonics line
consists of two groups sophisticated sensors and stand-alone
transmitters. The Smart Transmitters combine state-of-the-art
transducer technology with the latest software techniques.
The software contained within each Smart Transmitter features
many programmable parameters allowing the user to easily
customize the equipment even in the most challenging applications.
All Solids Smart Transmitters come with a joystick aiming
device and are available with an optional split-flange for
easy assembly and mounting.
Remote Mointoring Equipment can be used to provide a PC-based
interface for the BulkSonics ultrasonic
technology at a customer’s facility or to provide remote
monitoring for vendor managed inventory applications. Utilizing
the XL-70 remote monitoring unit and MessengerWare software
yields real-time monitoring with automatic and/or manual
updates. Messenger equipment provides value-added inventory
management while monitoring up to 32 analog 4-20mA inputs
at each site.
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.