Typical Application of Vibration Fork Level Switchįor solid materials, the main measurement is free-flowing medium density solid powder or granules. No adjustment required: Since the detection of the tuning fork limit switch is not affected by the electrical parameters and density of the measured medium, no on-site adjustment is required regardless of the measured liquid.įEEJOY can supply OEM service for vibration fork level switches among all level switches manufacturers, which include process connection, wetted material, top and low position alarm, etc. Maintenance-free: Since the detection process of the tuning fork limit switch is completed by an electronic circuit, there are no moving parts, so once installed and put into operation, no maintenance is required. Harsh conditions such as scaling, agitation, turbulence, bubbles, vibration, medium viscosity, high temperature, and high pressure have no effect on the detection. Strong adaptability: The different electrical parameters and density of the tested liquid have no influence on the measurement. ![]() It is not affected by foam, vortex, and gas, and is suitable for fixed-point alarm or control of solid material level in various silos and liquid levels in various containers. The tuning fork level switch has the characteristics of long service life, stable performance, safety and reliability, strong adaptability, no adjustment, and no maintenance, and is mainly used in metallurgy, building materials, chemical industry, light industry, food, and other process control industries. ![]() HLFS(high-level alarm) LLFS(low-level alarm)Īdvantages of Vibration Fork Level Switch Hot selling types of vibrator fork level switch We can manufacture according to customer's specification like: They are also suitable for mining, chemical processing, and food and beverage applications.Specification of Vibration Fork Level Switch 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. 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. It is the most widely used product in the material (liquid) level switch instrument. 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.
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