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Level Sensor for Liquid
Level Sensor For Solid
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Dial Instruments Pte Ltd
Level Measurement Solutions for Petrolchemical, Pharmaceutical,
Marine & General Industries
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NOHKEN Series
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Vibrating Level Sensor VL
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Products Range
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Mini-Float Level Switch (100)
Tank Side Mounting
Tank Top Mounting
keyboard_arrow_right
keyboard_arrow_down
Cable Float Level Switch (200)
Electro-Mechanical Type Switch
Multipoint Cable Float
Reed Switch Type
Single-Point Cable Float
keyboard_arrow_right
keyboard_arrow_down
Electrode Level Switches (300)
Multipoint Electrode Level Switch
Single Point Electrode Level Switch
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keyboard_arrow_down
Horizontal Magnetic Float Level Switch (500)
Cranked Arm Type
Round Flange Type
Square Flange Type
keyboard_arrow_right
keyboard_arrow_down
Vertical Magnetic Float Type Switch (700)
700B - Bilge Alarm Version
700EX - Explosion Proof Version
700HT - Industrial/Marine Version
700LS - L-Shaped
700M - Marine Version
700P - PVC Industrial/Chemical Version
700S - Industrial Version
700VT - Din Connector Version
BLG780 - Internal Magnetic Float Level Switch
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keyboard_arrow_down
Temperature Measurements
Temperature Switches
keyboard_arrow_right
keyboard_arrow_down
Pressure Measurement
Pressure Switches
keyboard_arrow_right
keyboard_arrow_down
Flow On Series
FF80
keyboard_arrow_right
keyboard_arrow_down
NOHKEN Series
Auxiliary equipment and others
Capacitive Level sensor
Conductivity Level Sensor
Continuous Level Sensor for Liquid
Continuous Level Sensor for Solid
Electrode Level Sensor
Level Sensor for Liquid
Level Sensor For Solid
Vibrating Level Sensor VL
VLS-VL
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Description
Applications
Level measurement of solids, granular materials and sludge blanket
Features
Measurement is based on coil impedance detection.
Resists temperatures up to 150℃ as standard
Insensitive to temperature changes
Offers fail-safe switch
Low voltage operation
Detection made at the end of the detector
Wide sensitivity adjustment range
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 a solid presence and gives an output.
When the detector is not covered by the material
The electromagnet vibrates at its operating frequency when an alternating current is applied.
Back electromotive force on the electromagnet becomes the largest due to change in magnetic field from the magnet
The sensor determines the detector is not covered by the material.
When the detector is covered by the material
Applying alternating current does not cause the electromagnet to vibrate at its operating frequency.
No back electromotive force occurs because the magnet is stationary.
The sensor determines the detector is covered by the material.