ML300_磁翻板液位计说明书.pdf

Polsonic ML300 Type Series of Side-mounted Magnetic Floating Ball Liquid Level Indicator Function Application Range ML300 type magnetic floating ball liquid level indicator，(abbreviated as the indicator) is used to test liquid level of media in storage devices (tower, vat , trough , ball-shape container and boiler) under pressure (or open). It could indicate status and height of various liquids. The liquid level signal could be transmitted from long distance with connection of the indicator and liquid leve l transmitter . Wit h certai n electric devices ，automatic control measuring of liquid level could be realized. The indicator is reliable and safe testing instrument. It has isolated and sealed magnetic coupling structure, it is especially suitable for testing liquid level of inflammable, explosive, o r corrosive media. The indicator may clearly and directly display liquid level on the spot. Whole -range measuring could be realized with single body without need of multi sets of indicators. With displayer integrated with the indicator, transmission accuracy could be improved without intermediate transmitting procedures. Working Theory The indicator is based on U-tube flow theory. The liquid in container flows naturally into the indicator body. Based on buoyancy and magnetic coupling theory, liquid level could be displayed with the floating ball inside main body and revival pillar outside. The change of liquid level within main body results in position change of floating ball, whic h leads to revival of the pillar by 180 . When liquid level rises, revival pillar turns from white to red, and when it falls, the pillar turns from red to white. The demarcation line between red and white indicates the actual level of the medium inside container. Features 1. It is suitabl