# 2.4.1 RSSI（訊號強度）

在儀表畫面上有二組RSSI 數值分別代表上下游探頭所接收到的訊號強度。介於0-100％ 之間，建議在10％ 以上以維持系統正常運作，若發現RSSI過低或不穩定跳動時，請參考以下幾點調整方法： 

● 嘗試微調探頭之間的距離。 

● 更換探頭架設位置。 

● 確認管內是否有沈澱物。 

● 檢查管外壁是否有過厚的鐵鏽、油漆等物質，嘗試刮除平滑後勻塗佈更多的耦合劑。 

● 兩個探頭所發出的訊號可能不在同一直線上，試著慢慢移動探頭直到有更好的RSSI值。並且檢察探頭距離是否有誤。 

● 做完上述任何動作後，務必再次檢查探頭距離是否偏離過多，過度的偏移將產生流量量測結果的誤差。 

● 檢查設定中Meter→Rx Peak Level中設定值，若架設的管徑較大，拉線較遠等因素造成RSSI總是偏低，可以嘗試調整此設定值，相關設定注意事項請參考後續說明。


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