在现场仪表维修中,需要经常对仪表的输出信号与刻度之间进行换算,来检查和确定仪表的示值是否达到技术要求。《仪表输出信号与刻度换算图》就是这种换算的工具,原理简单,换算迅速,使用方便。目前,在各种化工厂里,仪表自动控制系统主要采用气动单元组合仪表(QDZ型)和电动单元组合仪表(DDZ型)。一次仪表统一的输出信号分别为0.2～1.0Kg/ In the field of instrument maintenance, the need for regular output of the instrument between the scale and scale conversion, to check and determine whether the indication of the instrument to meet the technical requirements. “Instrument output signal and scale conversion map” is this conversion tool, the principle is simple, rapid conversion, easy to use. At present, in a variety of chemical plants, automatic control system instrument mainly pneumatic combination instrument (QDZ type) and electric unit combination meter (DDZ type). A unified instrument output signals were 0.2 ~ 1.0Kg /