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Tuning fork level switches are widely used in the process industry and are suitable for almost all liquid media. It is also suitable for measuring moderately dense solid powders or particles that can flow freely. Based on the working principle of the tuning fork, the internal piezoelectric crystal vibrates the external tuning fork at its natural frequency. The frequency changes depending on the medium it is immersed in – the greater the density of the liquid, the lower the frequency. Therefore, whether the tuning fork is immersed in a liquid or remains dry determines whether the frequency changes. Continuous monitoring can be carried out for such frequency changes. The tuning fork level switch can be used in liquid and slurry applications, including film buildup and gas-entrained liquids. The detection performance is hardly affected by flow, turbulence, bubbles, foam, vibrations, solid particles, accumulation, or fluid properties. Applications include: detecting high and low liquid levels in tanks, and serving as a backup detection device for continuous level transmitters ； Pump activated by liquid level ； And to start or stop the agitator based on the liquid level around the blade. Unlike many other level switch technologies, the tuning fork technology does not have parts that are prone to getting stuck, thus making it less likely to cause incorrect switching. The main advantages of the fork-type level switch in production and operation processes are as follows: 1. Strong adaptability—different electrical parameters and densities of the material being measured have no impact on the measurement. Severe conditions such as scaling, stirring, turbulence, bubbles, medium viscosity, high temperature, and high pressure have no impact on the detection as well ； 2. Maintenance-free—Since the detection process of the tuning fork limit switch is carried out by electronic circuits with no moving parts, it requires no maintenance once installed and in operation, and mechanical wear is minimal. It has advantages such as a long service life, stable performance, and reliability. 3. No calibration is required—since the detection by the fork-type limit switch is not affected by the electrical parameters or density of the medium being measured, no on-site calibration is needed regardless of the type of liquid being measured. The main disadvantages of the fork-type level switch during production and use are as follows: 1. It has poor impact resistance and cannot withstand heavy compression, as it is unable to resonate after deformation; it can be used at high levels but not at low levels. During installation, it should be placed away from the inlet and outlet, and if that is not possible, a baffle must be installed. 2. It is not suitable for very viscous media. The accumulation of material between the prongs, which causes them to stick together, interferes with level detection, alters the natural vibration frequency of the tuning fork, and can easily lead to resonance failure. To learn more about tuning fork level switch products or our other instrumentation products, please visit the Huike Instruments official website at www.huikeyb.com. If you have any questions, feel free to call us; we will assign professional technicians to assist you.