Vibrating tuning fork devices for monitoring liquid level and activating switch contacts at predetermined liquid level thresholds.
Tuning fork style level sensor.
Models are easy to use and applications include mining chemical processing and food beverage.
Plc example with switches.
This makes vibrating fork type level switches a k a.
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.
For point level detection in liquids a sensor in form of a tuning fork is excited at its resonant frequency.
The change is analyzed and translated into a switching signal.
The scientific developments include the deposition of polymer monolayer and antibody coatings which are applied to the active surface of the sensors.
This low maintenance device designed around the tuning fork principle provides you with point level detection for alarm monitoring and control.
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.
Paddle wheel level switch.
3 rd party iec61508 sil2 safety and hygienic certification with choice of outputs makes it suitable for a wide range of applications.
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.
In solids a one rod sensor is excited at its resonant frequency.
Threaded flanged tri grip tuning fork level switches ltu2000 series.
It should be noted that the previous photograph of the tuning fork style level switch is complete.
The ms tech sensor r d center is currently developing novel tuning fork sensors.
The vibrating fork type level switch working principle is simple and effective.
Rosemount 2120 level switch vibrating fork rosemount the rosemount 2120 level switch provides easy to install reliable level detection and control.
The tuning fork sensors are based on the principle of dual tuning forks which vibrate at low frequencies.
The oscillating frequency changes as the fork enters the medium.
The drive works piezoelectrically.
Cost effective models are an ideal choice for level control of powders and fine grained solids.
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.
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.
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