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DJS-Ⅲ型乘除器是DDZ-Ⅲ型电动单元组合仪表中的一个计算单元,常用作测量气体流量时温度、压力补偿计算用仪表,将变送器的输出换算成标准状态下的流量值。根据温度、压力的补偿范围不同,补偿运算式也不相同,温压补偿用乘除器的定标、调校往往比较困难。本文介绍定标、调校的实用方法,供仪表维护人员参考。一、定标、调校的原理和方法乘除器的运算式为 V_0=((V_1-1)(V_2-1)/(V_3-1))+1(V) (1)测量气体流量时,温度、压力补偿用乘除器的
DJS-Ⅲ multiplication and multiplication device is a calculation unit in DDZ-Ⅲ electric unit combination instrument, commonly used as temperature and pressure compensation calculation instrument for measuring gas flow, and converts the output of transmitter into the flow value under standard state. According to the temperature, pressure compensation range is different, the compensation formula is not the same temperature and pressure compensation multiplier divider calibration, calibration is often more difficult. This article describes the calibration, calibration of practical methods for the maintenance staff reference. First, the calibration and adjustment principle and method Multiplication divider operation formula V_0 = ((V_1-1) (V_2-1) / (V_3-1)) + 1 (V) (1) When measuring gas flow, Temperature and pressure compensation by multiplier