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CBM-2100/CBM-2700 投入式靜壓液位計

簡要描述:靜壓式液位計?。茫拢停玻保埃啊。茫拢停玻罚埃办o壓式液位計(靜壓液位計/液位變送器/液位傳感器/水位傳感器)是一種測量液位的壓力傳感器.靜壓式液位計(液位計)是基于所測液體靜壓與該液體的高度成比例的原理,采用*的隔離型擴散硅敏感元件或陶瓷電容壓力敏感傳感器,將靜壓轉換為電信號,再經過溫度補償和線性修正,轉化成標準電信號(一般為4~20mA/1~5VDC)。

  • 廠商性質:生產廠家
  • 更新時間:2021-04-14
  • 訪  問  量:779

詳細介紹

用靜壓測量原理:
 

 

  當液位變送器投入到被測液體中某一深度時,傳感器迎液面受到的壓力公式為:Ρ = ρ .g.H + Po
 

 

  式中:
 

 

  P :變送器迎液面所受壓力
 

 

  ρ:被測液體密度
 

 

  g :當地重力加速度
 

 

  Po :液面上大氣壓
 

 

  H :變送器投入液體的深度
 

 

  同時,通過導氣不銹鋼將液體的壓力引入到傳感器的正壓腔,再將液面上的大氣壓 Po 與傳感器的負壓腔相連,以抵消傳感器背面的 Po ,使傳感器測得壓力為:ρ .g.H ,顯然 , 通過測取壓力 P ,可以得到液位深度。
 

 

  功能特點:
 

 

  ◆穩定性好,滿度、零位長期穩定性可達 0.1%FS/ 年。在補償溫度 0 ~ 70 ℃范圍內,溫度飄移低于 0.1%FS ,在整個允許工作溫度范圍內低于 0.3%FS 。
 

 

  ◆具有反向保護、限流保護電路,在安裝時正負極接反不會損壞變送器,異常時送器會自動限流在 35MA 以內。
 

 

  ◆固態結構,無可動部件,高可靠性,使用壽命長。
 

 

  ◆安裝方便、結構簡單、經濟耐用。
 

 

  主要技術參數:
 

 

  測量范圍:
 

 

  工藝: 擴散硅 陶瓷電容 藍寶石 電容任選
 

 

  分體式一體式可選
 

 

  量程: 0---0.5---200米
 

 

  輸出: 4---20mA (2線制)
 

 

  供電: 7.5---36VDC 推薦24VDC
 

        CBM-2100/CBM-2700 投入式靜壓液位計
 
 

  可靠防腐并帶有陶瓷測量單元的探頭,用于凈水、污水及鹽水的物位測量。
 

 

  應用
 

 

  CBM-2100 CBM-2700是用于靜壓式物位測量的壓力傳感器(變送器),港北公司可提供以下三種類型:
 

 

  外徑=22mm(0.87in):適用于測量飲用水和小口徑的管道
 

 

  外徑=42mm(1.66in):重型探頭,采用齊平式膜片易于清洗,適用于污水處理廠
 

 

  外徑=29mm(1.15in): 體積無要求的水罐等
 

 

  性能和優點
 

 

  其機械結構對過載及腐蝕性介質具有高抵抗性
 

 

  高精度、長期穩定的陶瓷電容和進口擴散硅測量單元
 

 

  密封的電子模塊及雙濾波壓力補償系統可抵抗氣候現場變化的影響
 

 

   電子模塊可輸出4...20mA信號并同時帶有過壓保護的模塊
 

      選擇集成的溫度傳感器Pt100可同時進行物位及溫度的測量 


       相應的附件可提供完整的測量方案
 

產品相關關鍵字: 靜壓式液位計

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