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December 2002: SiloPatrol® • VibraFork™

 

Wireless Communication Interface
 
Impossible Applications
Made Possible

Elburn, IL - Monitor Technologies LLC is proud to introduce another product for the SiloPatrol® Inventory Management System, the Wireless Communication Interface. With reliable and affordable technology, the SiloPatrol Wireless Communication Interface can be used to lower the cost of installation and to overcome obstacles that make hardwiring impractical or impossible.

The SiloPatrol Wireless Communication Interface uses proven frequency-hopping spread-spectrum technology, operating in the 900MHz band. Eliminating the need for wiring, the Wireless Communication interface transmits signals from PCs running SiloTrack™ Inventory Management Software to individual or groups of SiloPatrol "smart" sensors. The 900MHz band offers greater transmission distances, better signal transmission through obstructions and lower signal loss than other possible frequency bands.

The SiloPatrol Wireless Communication Interface can be utilized in numerous applications and is very affordable . Using single or multiple networks, over 100 sensors can be connected with up to 16 sensors on one wireless transceiver.

The SiloPatrol Wireless Communication Interface is enclosed in a NEMA 4 enclosure suitable for indoor or outdoor mounting. In addition, each transceiver includes both RS-485 and RS-232 interfaces. A choice of antenna and power supply options are also available.

More information on the Wireless Communication Interface

 

VibraFork™
 
New Level Sensor For Liquids Offers Many Options

Elburn, IL - Just released, Monitor Technologies' VibraFork™ vibratory point level sensor for liquids provides reliable sensing in a wide variety of applications in virtually any industry.

The vibrating probe principle utilized by the VibraFork overcomes typical application difficulties associated with changes in material, electrical dielectric constant, temperature or humidity. The VibraFork is easy to setup and requires no calibration. A high excitation frequency and a unique fork design provide excellent immunity to external vibration.

The VibraFork line of sensors has two versions, "Standard" and "Compact." The "Standard" version has a traditional instrument housing and provides local indication using a high-intensity bi-color LED and a relay output.

The "Compact" version has a compact stainless steel housing with a small local LED. A choice of outputs, solid state PNP/NPN, 2-wire AC or intrinsically safe, are also available.

The probe configurations available with either the "Standard" or "Compact" versions include the standard probe (4.9 in/125 mm), "SHORT" probe (2.7 in/69 mm) or pipe extension probe.

More Information on the VibraFork™

 

 

 
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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