Solid materials: fly ash, cement, stone powder, plastic particles, salt, sugar, etc. The PS-3227 Wireless Sound Sensor is two sensors in one wireless package: a sound wave sensor capable of measuring relative changes in sound pressure level as a function of time, and a sound level sensor with both dBA and dBC-weighted scales. Measuring medium: dry particles, powdery materials and various liquids, slurries, etc. It is not affected by foam, eddy current and gas, and is suitable for fixed-point alarm or control of solid material levels in various silos and liquid levels in various containers. It is mainly used in metallurgy, building materials, chemical industry, light industry, grain and other industries. Tuning fork level switch has the characteristics of long service life, stable performance, safety and reliability, as well as strong adaptability, no adjustment and maintenance-free. Its unique fork body design and its inherent vibration characteristics can ensure the automatic cleaning function of the tuning fork and prevent material hanging to the greatest extent. A tuning fork causes by internal crystal resonance, when the tuning fork is immersed by liquid or solid, the vibration frequency changes, and detected by the. The working principle of the tuning fork level switch is to make the tuning fork vibrate at a certain resonance frequency through a pair of piezoelectric. The Tuning Fork Sensors have the capacity to detect and identify traces of materials in gas, vapor and liquid phases, even at very low concentrations. Specifications: Supply voltage & output: 1255 Vdc 3 wire PNP/ NPN Output. It mainly uses the resonance principle of tuning fork to measure the level state. The Tuning Fork Sensor is often used in conditions where there may be frequent composition changes in the liquid. Therefore, there is no signal amplification circuit inside, which can eliminate the trouble of frequent sensitivity adjustment due to the material change. Tuning fork level switch is a kind of level switch. A Novel High-Q Dual-Mass MEMS Tuning Fork Gyroscope Based on 3D Wafer-Level Packaging. Comes standard with a user friendly PNP/NPN configurable output.įinally, Lime, Styrofoam, tobacco, dry cereals, sugar, animal feed, milk powder, flour, insulation, cement, paper shavings, plastic granules, sawdust, carbon black, light fibers, detergent powders, dyes, chalk, silica, sand, wood chips, Chemical processing, Pulp and paper processing, Mining, Food and beverage.The tuning fork level switch is also often called the tuning fork level meter or the tuning fork level controller, mainly because the tuning fork level meter appears in different links in industrial production, and the actual key functions are different, so people are habitual called many different names. Upon coming in contact with solids, amplitude of oscillation goes down, the same is used as a switching parameter for detecting point level for solids. The tuning fork is kept vibrating at its resonant frequency by a piezoelectric device. The user can check operation status through it by LED without opening the cover. Wetted parts, the fork and process connection, are 316L stainless steel to offer high corrosion resistance. In addition, the Tuning Fork Level Switch is not affected by the dielectric constant of the sensed material, making it superior to a comparable capacitance level switch for applications where the dielectric constant is low, more than one material is being used in the single vessel, and when material moisture content can change.Īlso, The Level Switch is also great for applications when the bulk density is too low for a rotating paddle level switch, making it the ideal choice for low density bulk solids and liquids. Tuning fork forms the sensing part of vibrating point level sensors. VQ is a compact level sensor ideal for integration into machinery. The Level Switch is easy to use with no calibration required, and no mechanical moving parts mean no routine maintenance. Applications in places a larger tuning fork level switch may not be suitable, providing great versatility. change in temperature, pressure, humidity, and. A sensor is a level measuring sensor consisting of a radar generator that directs an intermittent pulse with a constant frequency toward the surface of the material in a vessel. Vibrating Fork Level Switch for Solids-Vital. T or F Laser beams are intense, narrow light beams that can travel long distances. In addition, as the fork becomes free of material, the switch changes back to its normal state.Īlso, it’s compact size and DIN connection allow for application. Side Mount Media Type: Liquid Vibrating Fork Level Limit Switch, Meter Technology: PTC. Also, when the fork comes in contact with a material, the vibration is dampened and the switch changes state. The Level Switch incorporates a piezoelectric crystal that vibrates the fork at its natural frequency. The Tuning Fork Level Switch is an ideal choice for level control of powders.
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