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Mini tuning fork level switch
Product Description:
NYYCUK tuning fork level switch is a new type of level switch. It is designed and manufactured by using the principle of tuning fork vibration. It is an induction rod base on which the tuning fork is opened and closed, which drives the tuning fork through the piezoelectric chip and receives the vibration signal by another piezoelectric chip, which circulates the vibration signal and resonates with the induction rod. When the material is in contact with the induction rod, the vibration signal becomes smaller, and the control circuit outputs the electrical connection signal until the resonance is stopped. Because of the natural principle that the sensibility of the inductive rod decreases from the front end to the back seat, when the material in the tank accumulates up with the barrel, it touches the bottom of the inductive rod There is no error signal when the seat is in the rear or when discharging. In short, the tuning fork produces mechanical vibration under the excitation of piezoelectric crystal, which has a certain frequency and amplitude. When the tuning fork is immersed in liquid or solid, the vibration frequency and amplitude of the tuning fork will change. This frequency change is detected by the electronic-subcircuit and outputs a switch quantity.
Features:
◎ Suitable for measuring medium density solid powder or particles that can flow freely. Also applicable to almost all liquid media, this series of tuning fork level switches can be measured at a variety of levels, with high / low fault safety limit switches, overflow or empty operation protection, pump control, display pipes with / without flow, etc.
◎ Free from the influence of foam, eddy current and gas, it is suitable for the fixed point alarm or control of all kinds of solid material level and liquid level in various containers. Multiple models can be used in different situations.
Long service life, stable performance, safe and reliable
◎ Strong adaptability-the measured material has different electrical parameters, and the density has no effect on the measurement. Scaling, agitation, turbulence, bubbles, vibration, medium viscosity, high temperature, high pressure and other adverse conditions do not affect the detection.
◎ No adjustment is required: it is not affected by dielectric constant and density, so no field adjustment is required for any liquid measured.
◎ Free from maintenance: the detection process of tuning fork switch is completed by electronic
circuit, no moving parts, once installed and put into operation, no spot adjustment is required.
Parameters:
Typical applications: suitable for most liquids, including coated,inflatable and slurry.
Fork material: 304,316L (optional)
Fork length: 44mm
Power supply: 24VDC,220VAC
Working temperature: fork -40 ~+180 ℃
instrumentation -40 ~ +80 ℃
Process stress:
Process connection: thread, flange (optional)
Level of protection: IP67
Blast class: Exd Ⅱ BT4 (optional)
Signal output: SPDT relay output
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