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May 2003: Messenger • MK-2e


Cost-Effective Solution
For Inventory Monitoring
of Hundreds of Sites

Elburn, IL - The BulkSonics® Messenger Remote Monitoring equipment can be used to provide a PC-based interface for the BulkSonics ultrasonic technology at a customer’s facility or to provide remote monitoring for vendor managed inventory applications.

Utilizing the XL-70 remote monitoring unit and MessengerWare software yields real-time monitoring with automatic and/or manual updates. Messenger equipment provides value-added inventory management while monitoring up to 32 analog 4-20mA inputs at each site.

The efficient XL-70 is the easiest-to-use remote site monitoring and management system available. The XL-70 is a remote monitor, an auto-dialer, a communications engine, a status reporter, a programmable controller, a data logger and more.

MessengerWare remote monitoring software works with the XL-70 to automate the task of tracking, responding to, and reporting on hundreds of remote sites. This proven software makes complex data collection tasks simple and cost-effective. Two versions of MessengerWare remote monitoring software are available: MessengerWare and MessengerWare Lite.

Model MK-2e
NEW Versatile RF Capacitance Level Sensor

Elburn, IL - Monitor Technologies is launching the NEW TrueCap® Model MK-2e. Featuring a new look, this RF Capacitance sensor has been redesigned as a value-priced and versatile point level control.

Ideal for almost any point level application, the Model MK-2e has several standout features including a high sensitivity of 0.5pF and buildup immunity. The MK-2e is one of the only integral sensor units available that will accept 24VDC as its operating voltage.

Approvals are often an important factor when selecting a level control. The MK-2e caries the CE Mark on all Ordinary location units. For Hazardous locations, the MK-2e is available with both Class I and II approvals allowing one model to serve virtually any application. Both the Ordinary and Hazardous location units are CSA(US/C) approved.

Check out the MK-2e's new look! The twist on/off cover is easy to install and has two conduit entrances for convenient access. A high intensity LED is standard on all Ordinary location integral sensors providing local visual indication of power and material presence/absence without removing the cover.

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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