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Macro Sensors LVDT Linear Position Sensors Are Key Components in the Magnetrol® Digital Liquid Level Displacer Transmitter

Macro Sensors high temperature LVDT linear position sensors convert liquid level changes into 4-20mA output signals as part of a Digital Liquid Level Displacer Transmitter.

Pennsauken, NJ, October 05, 2012 --( The Magnetrol® Digital E3 Modulevel® Liquid Level Displacer Transmitter, an intrinsically safe two-wire instrument used for continuous liquid level measurement, liquid/liquid interface level measurement or density control, utilizes a high-temperature, custom design of the Macro Sensors PR Series of separate core LVDT Linear Position Sensors as part of the internal electronics needed to convert liquid level changes into 4-20mA output signals. The Liquid Level Displacer Transmitters are used in the chemical industry, petroleum refining, nuclear, power generation and oil field industries for various level applications.

The Magnetrol Digital E3 Modulevel® Liquid Level Displacer Transmitter implements simple buoyancy principles to detect and convert liquid level changes to useable measurement output. Changing buoyancy forces caused by a liquid level change act upon the spring-supported displacer of the transmitter, causing a vertical motion of the core within the Macro Sensors AC-operated LVDT Linear Position Sensor installed near the top of the transmitter.

As the core position changes with liquid level, voltages are induced across the secondary windings of the separate core LVDT. These signals are processed in the electronic circuitry of the LVDT Linear Position Sensor and used to control the current in the 4-20 mA output. An enclosing tube acts as a static isolation barrier between the LVDT and the process media. As the link between the level sensing element and output electronics is simple in mechanical design and construction, the transmitter maintains an inline design that results in low instrument weight and simplified installation.

For more information on Macro Sensors separate core LVDT Linear Position Sensors, please refer to the web site at or contact the factory at:

For more information on the Magnetrol Digital E3 Modulevel® Liquid Level Displacer Transmitter, refer to the web site at

About Magnetrol
Magnetrol International is a worldwide leader in level and flow instrumentation. Since 1932, the Magnetrol name has become synonymous worldwide with quality and innovation. Magnetrol recognizes the unique characteristics of today’s process market applications and offer numerous technology groups to address the broad range of control challenges.

Their extensive line of instrumentation includes Eclipse® guided wave radar transmitters, Pulsar™ pulse burst radar transmitters, Modulevel® displacer transmitters, buoyancy liquid level switches, Thermatel® thermal dispersion switches and transmitters, Echotel® ultrasonic contact and non-contact switches and transmitters, Kotron® RF capacitance switches and transmitters and Solitel® vibrating rod switches.

Our Product Quick Reference brochure provides an overview of our technologies. Or refer to the web site at .
Contact Information
Macro Sensors
Eileen Otto

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