For level instruments required to send signal remotely, diaphragm sealed differential pressure level transmitter, displacer transmitter and radar transmitter shall be selected.
远传指示液位仪表一般选用双法兰差压液位变送器、浮筒液位变送器及雷达液位变送器等；
Radar liquid level transmitter becomes widely used in chemical fields. It introduces principle of application. Some items in the selection and installation are described.
针对雷达液位计越来越广泛地应用于化工领域的液位测量。分别介绍了雷达液位计的基本原理，以及在选用、安装中的注意事项。
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