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      上海美坤電子科技有限公司
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      上海美坤電子科技有限公司
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      音叉液位開關

      音叉液位計,音叉液位開關,音叉開關,音叉液位計也叫音叉液位開關,其產品已經廣泛用于工業現場,它運用叉片的“共振”原理,在壓電元件的驅動    
      下產生振動,只有探桿周圍全部被物料包圍時,振動幅度才急劇減少,從而產生開關動    
      作,適用于低密度之粉/液體料位狀態檢測。    

      音叉液位計的產品特性:    
      ●物體與感應棒相接觸并有阻尼時,提供延遲輸出。    
      ●高低故障保險模式。    
      ●靈敏度可調,能夠檢測極低密度粉料、易流動之液體。    
      ●易使用,堅固耐用。    
      ●與阻旋式相比:無可動部件、堅固的探頭耐磨損和物料沖擊,靈敏度可調。    
      ●與電容式相比:不受介電系數影響,表面自清潔。    

      音叉液位計的產品應用:    
      ●料流檢測      ●界面檢測      ●料位檢測    
      四、技術參數:    
      電源                :220V.AC或24V.DC    
      功率消耗        :2W    
      振動頻率        :200Hz    
      繼電器觸點        :常開常閉接點    
      電氣連接        :M20×1.5(¢8-¢14電纜)    
      材質                :外殼/壓鑄鋁  304不銹鋼    
      外殼防護        :Ip65    
      最大壓力        :1.6MPa    
      松密度                :最小0.3g/cm3    
      靈敏度                :高靈敏度用于細粉末(松密度0.3-0.5g/cm3)    
      輸出延遲時間:0-9秒可調    
      起振                :3秒    
      工作溫度        :-20~120℃    
      電子部分        :-10~85℃(高溫訂制可達400℃)        
      連接螺紋        :  1-1/2″管螺紋或法蘭連接    
      信號指示器    :&#8226;3個發光二極管LED,顯示調控、輸出狀態和電源狀態    
      可調電位器    :2件,調延時和靈敏度    
      可調開關        :3個DIP開關用于時間延時選擇、高/低失效保護    

      音叉液位計的安裝說明:    
      1.安裝應與水平向下成20o夾角以增加感應靈敏度,減小下料沖擊。    
      2.開關安裝避免靠近入料口,以減少下料損壞音叉;若開關必須安裝在靠近入料口處,請在開關上方200mm處加裝一塊4″寬的保護擋板。    
      3.室外安裝時,接線盒的出線接線口必須朝下。    
      4.送電時應確認使用電壓正確。    
      5.被控制線路負載必須與開關接點容量相匹配。    
      6.入料口為非中心入料時,須考慮安息角(注:安息角為物料堆積時的傾斜角)。    
      7.  運輸、安裝、使用中要使音叉免受變形、擠壓、折損等外力影響,否則會造成損壞。    
      8.  高粘度(>2000mm2/s)  液體安裝時要使音叉部分與桶壁、管壁距離加大至無液體粘連。    

      音叉液位計和音叉液位開關的選型說明:    
      ◆微型音叉式應用:      
      適用于對密度較小的粉體、復雜的液體介質(如帶有輕度至中度涂層,易起泡液體/漿體,腐蝕性、高粘度液體、污水等)的液位測量。也可應用于檢測自由流動的中等密度的固體粉末或顆粒    

      ◆大音叉式應用:    
      適用于密度較小的粉體料位測量,能廣泛應用于環保除塵、面粉、電廠粉煤灰及其它化工原料等密度很小的物位測量    

       
       
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