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DXYK-3 series level display control device,The display and control instrumentation and sensors made up of two parts. Medium for water, oil, acid, alkali, industrial sewage, and other conductive and non-conductive liquids. It is widely used in petroleum, chemical industry, power plants, metallurgy, light industry, pharmaceuticals, paper, food and water and sewage treatment and other fields of automatic control systems, mainly for various open and closed vessel and underground tank, tank media measurement and remote control, and in the central control room or instrument console monitor, display, alarm.
Working principle 1, DXYK-3 series Level display control instrument sensors installed vertically in the liquid being measured, in the role of liquid buoyancy, internal floating with magnetic steel ball, with the resulting displacement of liquid level changes. Magnetic steel of magnetic field sensor detection tubes wet (dry) spring tube to contact pull-in or disconnected, the formation of the sensor output resistance. By displaying the table will be resistance changes into the LED luminous diode lights out, thereby simulating the measured level of change, when the liquid level in the two wet (dry) spring tube does not snap-action between, show table to maintain a position until the next wet (dry) spring tube action to ensure that it does not appear dark areas.
2, Liquid level alarm point is pre-set, when the level reaches a predetermined set point, the display list relay, relay contact repulsive, gives the corresponding upper/lower limit alarming signal and output control signals to achieve level display and control automation
Liquid Level Controller