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他們都在找: 壓力變送器 智能壓力變送器 電容式壓力變送器

智能壓力變送器的調(diào)節(jié)及量程設定方式
發(fā)布日期:2018/8/12 14:32:38
智能型壓力變送器調(diào)節(jié)步驟: 
  (1)將變送器安裝在標準壓力校準裝置上,打開右端蓋并按圖(1.4)接線;
  (2)打開變送器安裝的左端蓋通電預熱2-5分鐘;
  (3)用小螺刀調(diào)節(jié)線路板模塊上(Z)電位器的位置,使測量下限對應4mA;
  (4)將壓力升高量程上限穩(wěn)定后,用小螺刀調(diào)節(jié)線路板模塊上(R)電位器的位置使量程上限值對應20mA;
  (5)將壓力再降到測量下限重復(3)(4)步驟使之準確,并可分幾點測量線性,重復性等;
智能型壓力變送器量程設定有兩種方式:
  一種方式是用壓力源對其進行加壓加***量程壓力,然后調(diào)整其量程變位器,從而實現(xiàn)對量程的校準;同時,在其量程范圍內(nèi),也可以對其調(diào)整量程。即將壓力加***所需量程,然后將電流調(diào)***20mA即可.從而可以實現(xiàn)對量程的設定。
  第二種方式用手操器重設量程
  用手操器重設量程是***容易、***普遍的重設變送器量程方法。這種方法可***立改變模擬4和20毫安點的數(shù)值,而不需要壓力輸入。
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