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Sharing High Level Detection Amongst Many Bins

SITUATION:
“How can I detect the full level condition of bins in an assembly fill line?” A manufacturer of industrial chemicals required a high level detector to indicate the full level condition in small tote bins during the filling operation. They wanted to use a single level detecting probe and share it among many bins as they are filled.

EXPLANATION:
The manufacturer ships its product in tote bins. The level sensor would need to be inserted into a bin until the high level full condition is detected and then removed to be inserted into the next bin for filling. The manufacturer wanted to automate this process.

SOLUTION:
A recommendation was made by Monitor Technologies to use the TrueCap® RF Capacitance point level sensor and incorporate a common pipe union into the mounting scheme. The pipe union allowed the TrueCap unit to be inserted into place and secured by simply tightening the nut on the union. This eliminated any need for twisting the unit to uninstall it in the previous mounting condition where it was just threaded into the tote’s coupling.

Give Monitor Technologies a call and let us put our creative solutions to work for you!

 

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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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