PT100铂热电阻错误接线与二次仪表电阻测量回路分析

摘要

在实际使用中常出现 PT100铂热电阻接线错误导致二次仪表测得的监测温度较实际值出现虚高现象。对PT100铂热电阻接线方式及二次仪表电阻测量回路进行了分析，？并提出了正确的PT100铂热电阻接线方式。%The temperature according to secondary instruments virtual height always exists because PT100 platinum‐thermal resistance is w rong connection .Analyzing the PT100 plati‐num‐thermal resistance wire‐connection and the measurement of secondary instruments ,pro‐pose the right way to connection PT100 platinum‐thermal resistance .