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#FORK TYPE LEVEL SWITCH SERIES#

These level measurements are indicated via an electrical switching action. Vibrating level switch, Vibrating tuning fork Level switches are used to detect liquid or powder levels, or interfaces between liquids.

Temperatures from -58✯ to 302✯, Pressure from vacuum to 928 psi.

The TF-100 tuning fork requires no calibration and is not affected by changes in electrical properties of the material being measured.

#FORK TYPE LEVEL SWITCH SERIES#

The TF-100 Series vibration technology level switch is an excellent choice for most high level or low level liquid level measurement requirements. It carries FM hazardous area approvals and is available in sanitary models for pharmaceutical, food and beverage applicaitions. The compact design makes this level switch ideal for limited space installation. The TF-100 Series comes in a compact design with sensor lengths as short as 1.9" (47mm). It is available with Relay, Current, and PNP outputs that can be set to indicate alarm on either high level for spill prevention, or low level for run-dry protection. This level switch is designed for reliable indication of clean liquids and light slurries. TF-100 Series is a vibrating level switch with TF-L relay output and TF-P transistor output or with TF-T current output. Process Control Devices offers a series of level switches designed to detect & control the level of liquid within a tank.

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They are also suitable for mining, chemical processing, and food and beverage applications. The models are easy to use and are ideal for controlling powders and fine-grained vibrating fork solid. What is the use of tuning fork level switch?Ī tuning fork level switch for solids is a sensor that generates an electrical contact at a certain level. The threshold frequency is set to match the natural frequency of tuning fork type level switches under water. When the amplitude drops below a set threshold, the onboard electronics changes the outputs (relays).Īs the tuning fork type level switch is covered with liquid application media, its natural frequency decreases. It is important to consider the type of application media when monitoring given parameters.ġ.Amplitude of vibration: Vibrating Level Switch for SolidsĪs the material level increases and comes into contact with the Vibrating Fork tines, the amplitude of oscillation of tuning fork level switches dampens. China Tuning Fork Level Switch catalog of Vibrating Tuning Fork Level SwitchVibration Fork Sensor Level Switch, Vibration Tuning Fork Level Switch Liquid. Vibrating fork level sensors operate by vibrating tuning fork sensors continuously at their natural frequency and detecting the change in frequency and amplitude when application media is present. It may sometimes have a voltage-free contact, or sometimes it may have a fixed voltage of 0-12. A level switch's output can be voltage dependent or not, depending on the device. In the event of a variation in the level, the device raises an alarm or produces a sound.

It works like any alarm switch that turns on/off when the level of fluid goes above or below a predetermined level.

This prompts it to actuate an alarm, pump or valve. When the forks are exposed to liquid, the frequency drops and this is detected by the switch electronics. These models also feature two forks that vibrate at their mechanical resonance frequency, allowing them to self-clean when they come into contact with air. As it contacts the material in a tank, its oscillation stops, prompting the switch to output a detection signal. Vibration type level switches are composed of a vibrating rod made from stainless steel. When level reaches tuning fork, then change in vibration is measured to detect. It is the most widely used product in the material (liquid) level switch instrument. Tuning Fork Level Switch excites the tuning fork & makes it to vibrate. The product can adapt to the harsh working conditions and work reliably. When the vibrating fork for pharmaceuticals is subjected to medium damping, the v ibrating fork stops vibrating, and the control circuit drives the relay to send out a switch signal. The sensing part for detecting the material (liquid) level is composed of the vibrating fork for liquids, which has a fixed vibration frequency and amplitude vibration. The Vibrating Fork Level Switch is designed using the principle of the damping effect of the medium on the v ibrating fork vibration and the piezoelectric effect.