Level measurement: the basics
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چکیده
Three sight-type level sensors are glass gauges, displacers, and tape floats. Glass gauges are the most widely used instruments for measuring process tank level. Two types of level glass gauges measure liquid level in process tanks: tubular and flat gauges. The tubular type works on the same principle as a manometer. As the liquid level in an open tank rises or falls, the liquid in the glass tube will rise or fall. The gauges consist of glass, plastic, or a combination of the two materials.
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