Digital E3 Modulevel® liquid level displacer transmitter
Outstanding output stability, structural integrity and ease of use make range spring technology a better level control solution than torque tubes. Avoid the twists and turns of torque tube technology, which can’t equal the performance, durability and ease of use of a range spring. The E3 MODULEVEL linear variable differential transformer (LVDT) transmitter, with range spring technology, is the straightforward choice for accurate, reliable liquid level measurement and control.
Technology
Changing buoyancy forces caused by liquid level variation act upon the range-spring-supported displacer, causing vertical motion of the core within a linear variable differential transformer (LVDT). As the core position changes, voltages are induced across the secondary windings of the LVDT. These signals are processed in the electronic circuitry and converted to a usable output signal. The enclosing tube acts as a static isolation barrier between the LVDT and the process media.
Output Stability
• The range spring’s longer travel zone and dampening effect yields an output signal that is 4 times more stable than that of the torque tube.
• The smooth vertical motion of the range spring and LVDT core contribute to an output signal that is 6 times more linear and 20 times more repeatable than the torque tube.
• Oversensitivity of the torque tube makes the E3 MODULEVEL, whose range spring dampens the effects of vibration, agitation and turbulence, the preferred level control for stability in the toughest applications.
• With an output produced by sensor motion of 1.25” (32mm), versus just 0.63” (16mm) for a torque tube, the E3 MODULEVEL produces an output that is much more stable. A stable signal means extended valve life and less wear.
Frictionless Movement
• The knife-edge bearings that support the torque tube at each end are points of wear and friction buildup as the tube twists against them. The range spring movement is free of both the threat of wear and the opportunity for friction, which may cause inaccuracy in the measurement.
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Digital E3 Modulevel® liquid level displacer transmitter
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Outstanding output stability, structural integrity and ease of use make range spring technology a better level control solution than torque tubes. Avoid the twists and turns of torque tube technology, which can’t equal the performance, durability and ease of use of a range spring. The E3 MODULEVEL ...
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