Level Measurement of Cement and Flyash
Elburn, IL -- Monitoring your inventory
of cement and flyash is critical to your concrete batch
plant or to any concrete producing facility, including
pre-cast facilities. You need to make certain
that you operation can run virtually continuous and
not run out of these key high value ingredients. Until
now you have only been able to monitor the presence
and absence of material at high or low points or take
inventory readings periodically. Monitor Technologies
is please to announce the success of it's Flexar(TM)
guided wave radar continuous level measurement system
in measuring both cement and flyash in silos ranging
up to 100 feet in height.
Unlike all other continuous level measurement technologies, guided wave radar
is unaffected by dusty environments such as what occurs during the filling of
silos with cement and flyash. 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 calculate 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
Monitor's experience of nearly five decades dealing with cement, flyash and other
materials for the concrete producing industries allow us to apply various technologies
to provide high value solutions that are accurate and reliable. The Flexar
guided wave radar technology is the best and most reliable solution for cement
and flyash level measurement available today. Give us a call and ask about
how we can create success for your operation.
Monitor Technologies LLC is a leading supplier of level, flow, particle emission
and aeration instrumentation for the worldwide powder and bulk solids market.
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,
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.