FX3G-1DA-BD

FX3G-1DA-BD

一體化溫度變送器的感溫元件為工業鉑電阻，在-80°C~300°C環境下進行現場校準階段的方法為將一體化溫度變送器同測量標注近期一并放置于恒溫槽之內，盡可能讓二者靠近。隨后，在近似熱平衡狀態下將包含輸出電流值、顯示溫度在內的輸出值，同測量標準其溫度直加以比較。一體化溫度變送器，隸屬將溫度變化轉換成為具備函數關系標準化輸出信號的儀表設備，主要部件包括信號轉換器與傳感器，其中信號轉換器下包括測量、信號處理單元。

    2、現場校準實驗 

準備5支包含0.5等級準確度傳感器的Pt100熱電阻一體化溫度變送器，實驗樣品變送器標準化輸出信號為4~20mA，校準溫度點選擇樣品上限值、下限值、量程50%附近3個溫度點。 

實驗室校準條件下的恒溫槽為正常尺寸，而限產校準則采用便攜式恒溫槽，且需要以現場實際需要為依據對導熱介質進行調整，通常生物制藥、工業、煤炭等工況下以乙醇、硅油、蒸餾水為主。一體化溫度變送器現場校準應用便攜式恒溫槽與便攜式油槽，而實驗室校準則主要應用制冷恒溫槽、水槽與標準油槽，現場校準應用設備對比實驗室應用設備，有著更強的環境適應性。

3、校準實驗結果 

基于上述實驗結果，可以得出，應用此次提出的一體化溫度變送器現場校準方法，獲取的校準結果同實驗室環境下校準結果差值較小，大差值僅達到5.2 μA，對于0.5級16 mA輸出量程一體化溫度變送器占比僅不到7%。

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