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New tuning fork level switch available from Dwyer Instruments

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article image Tuning fork level switch
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The Proximity Division of Dwyer Instruments is offering a new and innovative tuning fork level switch, the series TFLS.

The TFLS incorporates a piezoelectric crystal that vibrates the fork at its natural frequency. The switch changes state when the vibration is dampened by sensed material.

Featured in the TFLS is user-selectable fail-safe operation of the contacts and LED indication of switch status.

The TFLS is not affected by vibration from conveying systems, motors, or the movement of material. It can be mounted in any position and is available with factory built extensions for mounting on top of the storage vessel.

Series TFLS is easy to use with no calibration required and with no mechanical moving parts there is no routine maintenance required.

The TFLS is unaffected by the dielectric constant of the sensed material making it superior to a capacitance level switch for applications where the dielectric constant is too low, where there is more than one material being used in one vessel, and when material moisture content can change.

The level switch is ideal for level control of powders and fine-grained solids, especially those with a low bulk density.

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