带隔离液油水界面液位仪表的回路测试? 回复 2# lmhlzy welcome your discussion i am sorry i can only reply in english in my office. yes it is ture that the level span is small for the height from high pressure tapping point to low pressure tapping point is short. and it will result in the measure error. the span is depend on the oil and water density and the level height. the negative suppression value will depend on the isolated liquid in the wet leg.查看更多