清管器指示器或“清管器发讯器”用来探测清管器是否通过、并启动报警装置通知操作人员。
A pig indicator or "pig sig" is used to detect the passage of the pig and alert the operator by tripping a suitable warning device.
这些磁铁可以固定或塞入几乎任何类型的清管器内。CD52清管器指示器可以探测到在管内低速或高速运行的磁铁。
These magnets may be attached to or placed inside almost any type of pipeline pig and detected at both low and high speeds by the CD52 system.
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