摘  要：差壓變送器是測量變送器兩端壓力之差的變送器。測量介質正負兩端的壓力差，轉化成可以反應壓力差的標準電流信號（4-20mA）。現著重介紹EJA差壓變送器的工作原理，對EJA差壓變送器實際應用中導致除氧器液位調節器指示波動的故障進行分析處理，消除了故障癥結。 關鍵詞：差壓變送器  調節閥  調節器  故障 Abstract: The differential pressure transmitter is a transmitter that measures the difference in pressure across the transmitter. Measure the pressure difference between the positive and [登陸后可查看全文]