Vibrating Level Sensor VP11 Series
?Level Switches ?Vibrating solid level switches
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詳情介紹
MODEL: VP11N, VP11F
Main application
Solid detection. Integration into small equipment
Main feature
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Flat detector
Detector is a flat vibration plate and only a small portion is projected into the tank, ensuring little degradation over time.
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Extremely robust
With piezoelectric crystal, no moving parts are required. The sensor is made very simple, offering long service life.
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User adjustable sensitivity
Sensitivity is adjustable to suit specific applications.
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Easy installation and low cost
Threaded (G 3/4) and sanitary flange type (1-1/2S) process connections are available.
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Compact and lightweight
Vibration plate O.D. 22.5, approximately 220g (VP11N) or 300g (VP11F)
Principle of operation
The sensor uses a piezoelectric crystal to cause pulsed vibration on the plate. The vibration is followed by ringing.
The ringing decreases as time passes. How it decreases depends on the force applied to the plate.
With material covering the plate, the ringing decreases more rapidly than without material. The sensor compares how the ringing decreases to determine material presence.
The pulsed vibration is synchronized with the ringing to achieve a wide sensitivity adjustable range.
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