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Providing Practical Solutions in Continuous Level Measurement and Inventory Control
(Bin Level Sensors and Transmitters including SiloPatrol® SE and Flexar®)

Continuous Level Measurement Diagram
Silo terms used with Monitor's continuous level measurement and inventory control systems
Weight & Cable-Based

The SiloPatrol® SE continuous level measurement and Inventory monitoring system is the first truly robust smart cable-based (weight and cable / plumb bob / yo yo type) bin level sensor system. It is a field-proven approach to reliably monitoring the level of material in bins, silos and tanks up to 150 ft (45.7 m) in height.

Details on SiloPatrol SE >>

Details on Wireless >>

Details on SiloTrack >>

Details on HMI2 >>

Plumb Bob Level Sensor
Flexar® Guided Wave Radar

Flexar guided wave radar continuous level monitoring technology has been installed in thousands of powder and bulk solids applications worldwide. We uniquely combine this strategically acquired technology with five decades of expertise and focus in powder and bulk solids applications, and with our SiloTrack™ inventory management software interface.

Details on Flexar® Continuous Level Sensors and Transmitters>>

Details on SiloTrack >>
Details on HMI2 >>

Flexar Guided Wave Radar
TrueCap Level SensorTrueCap 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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SiloTrack Inventory Management Software HMI Operator Interface Flexar Guided Wave Radar Level Transmitter SiloPatrol Cable-Based Level Sensor