Vibrating tuning fork devices for monitoring liquid level and activating switch contacts at predetermined liquid level thresholds.
Tuning fork style level sensor.
A vibrating tuning fork liquid level switch is an instrument for monitoring the height of a liquid and tripping a relay contact switch or transmitting a solid state relay switch output when a maximum minimum or intermediate level has been reached.
In solids a one rod sensor is excited at its resonant frequency.
For point level detection in liquids a sensor in form of a tuning fork is excited at its resonant frequency.
The vibrating fork type level switch working principle is simple and effective.
The ltu 2000 tuning fork sensors are point level switches that are designed to detect low or high levels of liquids and is based on the vibrating tuning fork principle.
The ms tech sensor r d center is currently developing novel tuning fork sensors.
This low maintenance device designed around the tuning fork principle provides you with point level detection for alarm monitoring and control.
Tuning fork type level switches reliable cost effective and very popular for use in detecting the presence or absence of liquids and bulk solid materials.
This makes vibrating fork type level switches a k a.
The fork paddles are only a couple of inches long and require no physical extensions in order to properly detect liquid or solid material at that point.
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The oscillating frequency changes as the fork enters the medium.
The vibrating sensor technology is perfect for solid and liquid level control including sticky materials and foam as well as powders and fine grained solids.
Vibrating fork switches are reliable and perfect for overfill prevention high and low level alarm and pump protection even in the most challenging of applications.
The scientific developments include the deposition of polymer monolayer and antibody coatings which are applied to the active surface of the sensors.
However the types of applications that can use tuning forks is limited to overfill or run dry type applications and they do not provide continuous process measurement.
Tuning fork level switches are sensors with an electrical contact output at a specific level.
Paddle wheel level switch.
The drive works piezoelectrically.
Rosemount 2120 level switch vibrating fork rosemount the rosemount 2120 level switch provides easy to install reliable level detection and control.
Threaded flanged tri grip tuning fork level switches ltu2000 series.
Cost effective models are an ideal choice for level control of powders and fine grained solids.
The change is analyzed and translated into a switching signal.
Plc example with switches.
The tuning fork sensors are based on the principle of dual tuning forks which vibrate at low frequencies.
