Vibrating Level Sensor VL
?Level Switches ?Vibrating solid level switches
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詳情介紹
MODEL: VL12N, VL12F, VL22N, VL22F, VL32N, VL32F
Main application
Level measurement of solids, granular materials and sludge blanket
Main feature
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Measurement is based on coil impedance detection.
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Resists temperatures up to 150℃ as standard
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Insensitive to temperature changes
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Offers fail-safe switch
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Low voltage operation
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Detection made at the end of the detector
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Wide sensitivity adjustment range
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Principle of Operation
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When the detector is not covered by the material
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When the detector is covered by the material
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Notice of Housing painting Change of Separation model Vibrating Level Sensors VLS
Principle of operation
Measurement is based on coil impedance detection. A magnet and an electromagnet inside the detector vibrate the plate. Current that flows on the electromagnet decreases when the detector is covered by the measured material. The sensor detects this change to detect solid presence and gives an output.
When the detector is not covered by the material
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The electromagnet vibrates at its operating frequency when alternating current is applied.
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Back electromotive force on the electromagnet becomes the largest due to change in magnetic field from the magnet
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The sensor determines the detector is not covered by the material.
When the detector is covered by the material
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Applying alternating current does not cause the electromagnet to vibrate at its operating frequency.
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No back electromotive force occurs because the magnet is stationary.
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The sensor determines the detector is covered by the material.
Notice of housing painting change of separation model vibrating level sensors VLS
NOHKEN Model VLS12、VLS22、VLS32 (c/w silver hammerton painting) will be abolished by October 2022 and the replacing new models corresponding to them will be VLS13、VLS23、VLS33 (c/w blue color acrylic painting).
Remark: The new models overall dimension, functionality and the other specifications than painting material will remain the same as those of VLS12、VLS22、VLS32 for the convenience of the customers and users.
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郵 箱：howard@nohken.com.cn
地 址：上海市青浦區盈港東路7799號寶龍中心A座8樓801室
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