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March 2007 : Flexar

 

Flexar
Level Measurement of Cement and Flyash Made Simple

 

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 meter.

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).

 

 

 

 
Spotlight: RF Capacitance Level Sensor
TrueCap Level SensorsTrueCap Light  
TrueCap® MK-2
Advanced RF Capacitance Level Probe

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.

Click here for more information on the TrueCap MK-2 Level Sensor or contact Monitor Technologies LLC at
Tel.: 800-766-6486 in the USA and
Tel.: 630-365-9403 worldwide.

 

>>Download TrueCap Product Bulletin #413

>>Click here to learn more about other Point Level Switches from Monitor Technologies


 

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