# 2.2.2 儀表接線方式

探頭數量為一組兩個，分別為上游探頭與下游探頭；每一個探頭有三條運接線，因此在儀表上共有六個接點，如下圖所示。將探頭依照下圖順序進行線路的安裝，若部分探頭型號僅有二條線沒有接地隔離（Gnd）接線，則安裝+、- 兩條條線即可。

![](/files/-LvOo6BZJiWu6-Syn2c-)

![](/files/-Lx-910yr9yWh51CXbgK)


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