Product description: China TianKang TKWL2101 series tuning fork material level switch produces vibration through resonance of transistor. When affected by material damping, the vibration amplitude decreases dramatically a
China TianKang TKWL2101 series tuning fork material level switch produces vibration through resonance of transistor. When affected by material damping, the vibration amplitude decreases dramatically and the frequency and phase change obviously, which can be examined by internal electric circuit and convert Into swlth signal for outputting after treatment. This product can monitor, control and report the high-low level of the material tank and is applicable for various kinds of liquids, powders and particle solid. It is simple in use, reliable in operation and strong in adaptability, which is basically surface maintenance and both the tuning fork and output are with working state and both adopt LED indicator, can adjust the status indicator based on habits and equipped with three kinds of output methods (DC24V. AC110V and AC220V) and various output methods (DC current output type, relay contact point output type and DC voltage output type). All types have high or low analog fault alarm and optional instrument swith sensitivity. tuning fork material level switch characteristics •Operation is not affected by flow, turbulence, air bubble, foam, vibration, solid content, coating, liquid property as well as change of products in a genuine way. •No need calibration and require the least intallation process •Polarity insensitive and with short circuit protection function •No moving parts or gap, realize maintenance free in a genuine way •LED indicator and the status indicator can be adjusted based on habits •"Rapid drip" tuning fork design has more rapid response time for viscous liquid. •Sanitary connecting piece tuning fork material level switch Principle of measurement This product is liquid level switch adopting tuning fork principle design and adopts piezoelectric crystal to make vibration for tuning fork with the fixed frequency of tuning fork. It can make continuous monitoring for this kind of frequency change. When the product is used for low alarm, the liquid in the container will flow downward through tuning fork and cuase the change of fixed frequency. This change is examined by electronic components and then swithches output status. When applied to high alarm, the liquid in the container will rise and contact with tuning fork and also switches output status. tuning fork material level switch Technical parameters •Temperature range of medium: -20°C~80°C •Environmental temperature: -20°C~60°C •Environmental humidity: <95%RH •Examined medium: liquid, powder or particle solid •Density of examined medium: solid >0.1g/cm3;Liquid>0.7g/cm3 ; •Size of examined solid particle: <10mm •Max liquid viscosity: < 1000mm2/S •Angle of repose of examined medium: >200 •Pressure range:《IMPa •Material of shell: die-casting aluminium •Material of fork: lCrl8Ni9Ti •Shell protection class: Ip65 •Connection method: G1 screw thread •Flange (selected by user) •Electrical parameters: l.Power supply: DC24V;AC220V 50HZ 2.Signal output: relay output: 5A 220V AC,3A 24V DC, 3.Power consumption:《2W •Vibration frequency of tuning fork: 300±50HZ •Environmental vibration class: V.L.4, acceleration no bigger than ig •Action time of switch signal: 1~60S tuning fork material level switch Dimensions tuning fork material level switch Installation Methods 1.There are vertical installation with fork end downward, horizontal installation and tilting installation with fork end downward for meter, (it is suggested to chose vertical installation with fork end downward when material is with strong adhesion) 2.Upturned installation that is installation method with fork end upward is not allowed. 3.When the material is mixed with lump or hard particle, it is suggested to choose vertical or tilting installation methods. 4.Before installing onto device, it is suggested to use a small amount of medium sample to examine the sensitivity calibration. For example, immerse the meter into a continer installed with medium to examine the reliability of switch. 5.During practical installation, there are top installation (making high monitoring for medium), side wall installation (making high or low monitoring for medium) and pipe installation (making air flow monitoring for material pump). Ordering information for TKWL-2101 capacitance level meter
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