["Thermistoren häufige Schääungen und Lösungswege",,"Thermististoren werden in der Niten温区中最常用的一种温度检测器。基于金属导体的电阻值随温度的增加而增加这一特性来进行温度测量。常见的故障现象及解决如下： 1. 故障现象：显示热电阻的指示值比实际值低或示值不稳； 可能原因：保护管内有金属屑、灰尘、接线柱间脏污及热电阻短路； 处理方法：除去金属屑、清扫灰尘、水滴等，找到短路点加强绝缘。 2. 故障现象：热电阻的表指示无穷大； 可能原因：热电阻或引出线短路或接线端端松开等； 处理方法：更换电阻体或焊接及拧紧接线螺丝等。 3. 故障现象：显示仪表指示负值； 可能原因：显示仪表与热电阻接线有错或热电阻有短路现象； 处理方法：改正接线、或找出短路处、加强绝缘。 4. 故障现象：热电阻值与温度关系有变化； 可能原因：热电阻丝材料腐蚀变质； 处理方法：更换热电阻。"

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