Elburn, IL -- Monitoring the continuously
changing level of corn in the surge hopper of an Ethanol
production facility can be challenging. The material
level can be continuously changing and the environment
very dusty. Monitor Technologies LLC is please
to announce that its Flexar(TM) guided wave radar continuous
level measurement sensors have been successfully used
in corn surge hopper applications. At the GEAPS
show this year,Booth number
101C, Monitor will feature its Flexar continuous
level measurement system.
Unlike all other continuous level measurement technologies, guided wave radar
is unaffected by dusty environments such as what occurs during the filling of
corn surge bins. This means that reliable and accurate readings are available
at your fingertips every second. The Flexar guided wave radar unit uses
TDR (time domain reflectometry) technology to make accurate measurements. With
TDR microwave pulses are guided to the material surface along a continuous stainless
steel cable of 0.31" (8mm) diameter. The microwave pulses reflect
off the material surface and the time of flight results in the distance measurement
of empty space. The unit calculates the material level based on you silo
height information and transmits this data either through smart RS485 communications
for use with our SiloTrack inventory management system, or via a 4-20mA output
signal to a remote receiving device such as a control system or digital display
meter.
Monitor Technologies LLC is a leading supplier of level, flow, particle emission
and aeration instrumentation for the worldwide grain processing, storage and
handling industries. The experience and market knowledge gained over five
decades has earned Monitor a reputation for providing high quality and reliable
product solutions. Monitor is located in Elburn Illinois, give us a call
today and let us put our creative solutions to work for you!
For more information refer to www.flexar.info and www.monitortech.com or
contact Ms. Emily Jones at 1-800-766-6486 (630-365-9403).
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,
etc.
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
level indication.
Principle of Operation for the TrueCap RF Capacitance Level
Probe:
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.