智能壓力變送器的校準方法
任何壓力儀表都需要先校準才可正式投入運行，壓力變送器也是如此，下面小編介紹智能壓力變送控制器的校準步驟：:
1.首先做一次4-20mA的微調(diào)，用以校正變送器內(nèi)部的D/A轉(zhuǎn)換器，由于其內(nèi)部不涉及傳感部件，所以無需外部壓力信號源。
2.其次再做一次全程微調(diào)，該次調(diào)試就需要壓力信號源，使4-20mA、數(shù)字讀數(shù)與實際施加的壓力信號相吻合。
3.最后需要重新設定壓力范圍，通過調(diào)整使模擬輸出4-20mA與外加的壓力信號源相吻合，以便檢查得到的結(jié)果值與實際值的誤差是否較大。
西安仕樂克控制器制造有限公司 (www.a3025.cn)
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