When the vibrating probe comes into contact with the medium, the vibration changes and the vibrating level switch outputs a switching command. SC2800 mini vibration fork level switch Fork length: 40mm Probe lenght: standard: 76mm extension type: 120 250mm Pressure: 40bar Temperature: -40 100C. Signal output: Relay, SPDT, 5A/250Vac/ 28Vdc In point level measurement with vibrating level switches, a rod or a fork is set vibrating. Supply Voltage and Output: 20~250Vac/Vdc,50/60Hz, Relay SPDT 5A/250Vac / 28Vdc Some types of level switches are mentioned below. When the measured medium comes into contact with the tuning fork, it will change the feedback resonant frequency due to the damping resonances between the exciting PZT and receiving PZT.īy detecting the frequency and appropriately tuning the sensitivity of tuning fork level switch on measured material, such device can easily operate for monitoring the alarm level of measured material. 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.Description The tuning fork level switch is a mechanical resonant device which is excited by piezoelectric (PZT) elements. 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. 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. Classification Weather Proof Operate Method Vibrating Fork Level Switch. By selecting the option of direct load switching electronics.
The unique fork design and inherent vibration characteristics of the fork type level switch can guarantee the automatic removal function.
#FORK TYPE LEVEL SWITCH SERIES#
The SC series is a vibrating tuning fork point level sensor that utilizes piezoelectric. (50 mm) (dependant on connection type), the 2120 can be installed in even small diameter pipes. Our tuning fork type level switch is suitable for almost all liquids, including coating liquids, aerated liquids and slurry, as well as powders with good fluidity and no adhesion. The electronics control unit is integral with the sensing probe.
#FORK TYPE LEVEL SWITCH CODE#
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. SC24 LITE-TYPE MODEL NUMBER / ORDER CODE COMPARISON TABLE. Vibrating Fork type Level Switches are single point level switches. Also, when the fork comes in contact with a material, the vibration is dampened and the switch changes state. A 'smart' microprocessor-based electronic unit keeps the sensor in a resonant state as it changes from dry to wet or wet to dry. For point level detection in liquids a sensor in form of a tuning fork is excited at its resonant frequency. These level switches are ideal for monitoring, alarming, and control applications in tanks, vessels and pipes. Tuning fork level switch operated by using two piezoelectric elements built in on vibration tube. Vibrating Fork Level Switch RS85 The resonator utilizes a piezoelectric driven tuning fork that exhibits a large change in resonant frequency when immersed in any liquid. Vibration fork level switches use tuning fork technology to provide reliable liquid point level detection in applications where conductivity, turbulence, air bubbles, foam, pressure, temperature or viscosity changes may be a factor. The Level Switch incorporates a piezoelectric crystal that vibrates the fork at its natural frequency. The tuning fork type level switches working principle based upon detecting the change in harmonic vibration frequency of the sensing element as a result of the presence of the target media. The Tuning Fork Level Switch is an ideal choice for level control of powders.
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