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    [note] => 工作原理：MAY-2001-JQ在工作時，通過內(nèi)置的電機產(chǎn)生的高頻振動在不同密度濃度的液體介質(zhì)中產(chǎn)生的振動頻率不同，振動的頻率通過一個壓電晶體檢測出來，通過移相和放大電路，再由微處理器轉(zhuǎn)換成密度濃度數(shù)字信號；通常情況下不同濃度的液體，其密度與濃
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                                                          秒準（Mayzum）MAY-2001/MAY-2001H-JQ
                                                                         在線甲醛溶液濃度在線監(jiān)控儀

一、工作原理：MAY-2001-JQ在工作時，通過內(nèi)置的電機產(chǎn)生的高頻振動在不同密度濃度的液體介質(zhì)中產(chǎn)生的振動頻率不同，振動的頻率通過一個壓電晶體檢測出來，通過移相和放大電路，再由微處理器轉(zhuǎn)換成密度濃度數(shù)字信號；通常情況下不同濃度的液體，其密度與濃度會呈現(xiàn)一定的數(shù)學關系，根據(jù)拉格朗日插值算法（y=E1x3+E2x2+E3x+E4，其中x為密度，y為百分比濃度，E1、E2、E3、E4為濃度轉(zhuǎn)換系數(shù)）計算出某一密度下的對應濃度值。
二、適用國標：符合工業(yè)用甲醛溶液甲醇溶液濃度測試標準。
三、特點描述：
1、即插即用，免維護：安裝方式靈活（安裝于管道、槽體、反應釜、儲罐…）、體積小巧，安裝方式多樣化，可選卡箍/法蘭/螺紋安裝；
 
2、擁有強大的數(shù)據(jù)庫，內(nèi)置0-80℃溫度補償數(shù)據(jù)，克服了單片機內(nèi)存小，溫度補償范圍受限制的缺點。溫度傳感器與密度探頭集成，緊貼測量介質(zhì)，保證溫度補償及時、準確、可靠；
 
3、不受介質(zhì)顏色變化影響，不易受振動、壓力變化的影響；
 
4、出廠附帶標定證書，無需現(xiàn)場校準，也不需要定期校準；
5、用戶自定義上下限報警，觸屏輸入，操作簡單易懂，現(xiàn)場可接報警燈；
 
6、標配多組信號模擬輸出：可選4-20mA、RS485/232數(shù)字量、開關量（異常報警,上下限2路輸出），便于客戶集成控制，提高自動化程度，提高生產(chǎn)效率；
 
7、采用4.3寸觸屏人機交互界面，顯示內(nèi)容更詳細，彩色界面，操作便利，可拓展性強，可按用戶需求定制界面和功能；
 
8、數(shù)據(jù)自動保存，便于查詢：歷史數(shù)據(jù)查詢、生成歷史數(shù)據(jù)曲線，快捷查詢、導出EXCEL，自動數(shù)據(jù)分析與匯總，數(shù)據(jù)保存周期12個月，便于溯源（需選配MAY-LST歷史數(shù)據(jù)存儲功能）；
 
9、支持sqlite數(shù)據(jù)庫，可存儲高達16G的歷史數(shù)據(jù)，數(shù)據(jù)可通過U盤導出到電腦或者通過無線遠傳功能實時遠傳至PLC、PC、DCS等上位機系統(tǒng)；通過PC遠程查看實時狀態(tài)與報警。（需選配MAY-LOT數(shù)據(jù)遠傳模塊）
 
10、連續(xù)測量，迅速反饋，消除人工檢測誤差，不再需要人工頻繁取樣檢測，節(jié)省大量人力財力，保證數(shù)據(jù)一致性，提升產(chǎn)品質(zhì)量；
 
11、采用智能化芯片，運行無需試劑耗材，功耗低，穩(wěn)定性高，使用壽命長。
四、規(guī)格參數(shù)選型表：
五、顯示界面參考圖：
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