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March 2004: Flo-Pad • BINATROL® diaphragm


Flo-Pad Handles Tough Aeration Applications


Elburn, IL - Monitor's Flo-Pad bin aeration device fluidizes materials in bins, hoppers and silos. The virtually maintenance free Flo-Pad uses multiple Easers mounted on a single air plenum chamber inside the vessel for a multi-directional air release.

Monitor's Flo-Pad has many advantages over other bin aerators. The Flo-Pad fluidizes materials without the noise and damaging vibration caused by pneumatic or electric vibrators. Additionally, unlike other types of aerators that use cotton or canvas to diffuse the air, the Flo-Pad uses multiple Evassers, which are less likely to be bound or clogged due to moisture. The Evassers also have a standard neoprene boot that prevents material backflow by expanding to let the pressurized air out and contracting when the air is shut off.

The most effective aeration of dry bulk materials is typically achieved by the use of multiple rows of Flo-Pads, one row located in each quadrant of the slopping bin bottom. The spacing between rows and individual Flo-Pads can vary from application to application. Units are available for high pressure and high temperature applications.

Diaphragm Switch
Economical and Reliable
Point Level Detection

Elburn, IL - Monitor Technologies' BINATROL® diaphragm switch is a durable and low-cost solution for detection of product levels in dry material storage bins.

Monitor's diaphragm switch can be used to eliminate bin overflow, maintain a predetermined material level, indicate plugging of chutes or conveyors or provide any of a number of level control functions.

The flush mount, non-intrusive BINATROL® is ideally used when vessel size or internal clearance is limited, or where protrusion into a vessel is not acceptable. All installation and servicing, including diaphragm replacement and sensitivity adjustment, can be done from outside the vessel.

Monitor offers a variety of diaphragm bin monitors that can be configured with various switch sensitivities, diaphragm materials and approval ratings.

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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