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3HAC026156-003

3HAC026156-003

3HAC026156-003

3HAC026156-003

該系統是利用罐內液體的靜壓力和儲罐的有效截面積有關而與儲罐內的密度與溫度無關的方法來測量的，具有代表性的有ROSEMOUNT的HTG系統。
C、混合計量法（HTMS法）：采用高性能的液位計和高精度智能差壓變送器綜合了上述兩種方法的優點,可測量質量、密度、水高、液位、油溫，可分為雷達液位計混合法、伺服式液位計混合法、磁致伸縮式液位計混合法，具有代表性的有ROSEMOUNT、ENLAFU 、MTS的HTMS系統。
由于現場總線技術的發展使得智能變送器可以再同一總線上進行雙向多信息數字通訊，并且為油庫廣域網或局域網提供了基本的數字網, 是油品計量系統未來發展的方向。力控®-CY2000利用現場總線技術可以實現現場儀表遠距離組態,零點及量程校正, ,故障在線診斷, 降低了安裝成本。
油品罐區參數檢測的基本配置見圖2：

圖片標記2
D、油品的自動發放、接收采用性能可靠的控制設備（如PLC）控制相應的泵和閥門來完成。
E、為了保證計量的準確性,采用高性能的質量流量計來檢測進出流量，為了保證油品罐區的安全采用專用報警器對可燃氣體的濃度進行監測。
F、力控-CY200針對加油站系統的儲罐可采用ATG法，同時與加油機檢測系統進行配合使用（例如：WEEDER-ROOT加油系統），自動控制加油機的加油。
2、力控-CY2000數據采集和處理
A、自動計量各油罐液位、密度、油溫、水高等數據。
B、自動報警：對液位高、低限，可燃氣體超標、油溫高、低限、密度超限等各種異常情況進行報警，報警可采用聲光等形式。
C、參數修改：可方便的修改各種油品設置參數，如安全高度、報警限等
D、自動監控：可顯示油品罐區的動態流程，根據安全高度、液位設定值的不同可自動進行油品的發放、接收，液位超限或有異常情況時，發放、接收可自動停止。
E、利用補償算式自動將密度和體積補償到標準狀態，并能進行溫度補償，罐容量表矯正。
F、加油機數據采集：對具備通訊接口的加油機可以將內部數據完全顯示在管理站軟件，并可以將數據進行報表核算（如稅費分離核算等），并對數據進行歷史存儲供管理者查詢。

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