《维 护 手 册maintenance manual》由会员分享，可在线阅读，更多相关《维 护 手 册maintenance manual（4页珍藏版）》请在金锄头文库上搜索。
1、维 护 手 册 Maintenance Manual序号Number故障现象Fault Phenomenon可能原因Possible Cause修理办法Measures1 热电动势比实际应有的小Thermal electromotive force is smaller than the actual situation(1)热电偶内部电极漏电(1) Electrode leakage in thermocouple (2)热电偶内部潮湿(2) Internal thermocouple is humid(3)热电偶接线盒内接线柱短路(3) Binding posts short-circui
2、t in junction box of thermocouple (4)补偿导线短路(4)Compensating leading wire short-circuit（1） 将热电偶的热电极取出，检查漏电原因，若是因潮湿引起，应将电极烘干，若是因瓷管绝缘不良引起的，应予以更换(1) Detach thermode from thermocouple, check the reasons of leakage, and if it is caused by moisture, the electrode should be dried, and if it is brought by poo
3、r insulation of the ceramic tube, then replace the ceramic tube（2） 将热电偶的热电极取出，把热电偶的保护套管和电极分别烘干，并检查保护管是否漏气漏水等情况，对不合格的保护管应予以更换(2) Detach thermode from thermocouple, dry thermocouples protection tube and electrodes, check whether there is air or water leakage in protection tube, and replace incompetent
4、 protection tube （3） 打开接线盒盖，清洁接线板，消除造成短路的原因，把接线盒严密盖紧(3) Open the junction box, clean the wiring board, find the reasons of short circuit and then eliminate the faults, finally close the junction box tightly（4） 将短路处重新绝缘或更换补偿导线(4)Re-insulate the place where short circuit happens or replace the (5)热电偶热
5、电极变质或测量端损坏(5)Thermocouples thermode goes bad or measuring terminal is damaged(6)补偿导线与热电偶种类配置错误(6)Configuration between compensating leading wire and thermocouples type is wrong(7)补偿导线与热电极的极性接反(7) Compensating leading wire is connected with the reversed polarity of thermode (8)热电偶安装位置或受热长度不当(8)Instal
6、lation site of thermocouple or heating degree is improper(9)热电偶参比端温度过高(9)Temperature of thermocouples reference junction is too high(10)热电偶种类与仪表刻度不一致(10) thermocouples type are inconsistent with the scale of metercompensating leading wire（5） 把变质部分剪去，重新焊接工作端或更换新的热点极(5) Cut the bad part, re-weld measu
7、ring terminal or replace thermode（6） 换成与热电偶同种类的补偿导线(6) Install new compensating lead wire which is consistent with the type of thermocouple（7） 重新安装(7) Re-installment(8)改变安装位置或方法及插入深度(8)Change installation site, method, or insertion depth(9)准确地进行参比端温度补偿(9)Accurate temperature compensation for referen
8、ce junction is required(10)更换热电偶及补偿导线，使之与测量仪表种类相同(10)Replace thermocouple and compensating lead wire, making them in line with the type of measuring instrument2 热电动势比实际应有的大 Thermal electromotive force is larger than the actual situation（1） 热电偶种类用错，与测量仪表不符(1) The type of thermocouple is wrong, which
9、is inconsistent with （1） 更换热电偶及补偿导线，使之与测量仪表相符(1) Replace thermocouple and compensating lead wire, making them in line with the measuring measuring instrument（2） 补偿导线与热电偶种类不符(2) Compensating leading wire does not match the type of thermocouple（3） 热电偶安装方法，位置或插入深度不当(3) Thermocouples installation method
10、, location, or insertion depth is improper instrument（2） 换成与热电偶同种类的补偿导线(2) Install new compensating lead wire which is consistent with the type of thermocouple（3） 改变热电偶安装方法，位置或插入深度(3) Change thermocouples installation method, location or insertion depth3 测量仪表的示值不稳定（在测量仪表没有故障的情况下）Indication of measur
11、ing instrument is instable (measuring instrument isnt faulted)（1） 热电偶接线柱和热电极接触不良(1) Contact of thermocouples binding post and thermode is bad（2） 热电偶有断续短路或断续接地现象(2) Thermocouple appears interrupted short circuit or interrupted grounding（3） 热电极已断，或将断未断而又继续连接现象(3) Thermode has broken off, or is going t
12、o break off but it continues to connect（4） 热电偶安装不牢固，发生摆动(4)Thermocouple is not securely installed, and swing occurs（5） 补偿导线有接地、断续短路或断路现象(5) The phenomena of （1） 清洁接线盒和热电极端都重新连接好(1) Reconnect the junction box with thermode（2） 将热电极从保护管中取出，找出继续短路或接地点，加以排除(2) Detach thermode from protection tube, find t
13、he site where short circuit or grounding occurs, then eliminate the faults（3） 重新焊接断开之处，检查其特性质是否有所改变，对不符合要求的应予以更换(3) Re-weld disconnected place, check whether the special nature is changed, and replace it if it does not meet the requirements （4） 将热电偶牢固安装(4)Install the thermocouple securely（5）找出接地、继续短
14、路或断路处加以修理或更换新的补偿导线grounding, interrupted short circuit or disconnection happen to compensating leading wire(5)Identify the place where grounding, interrupted short circuit or disconnection happens and then repair it, or replace new compensating leading wire4 热电偶的热电点动势变化Thermal electromotive force in
15、Thermocouple is changed （1） 热电极变质(1) Thermode is deteriorated（2） 热电偶的安装位置或方法不当(2) Thermocouples installation location or method is improper（3） 热电偶保护管表面积垢过多(3)The surface of thermocouple protection tube has too much fouling（1） 更换新电极(1)Replacement a new electrode（2） 改变安装位置或方法(2)Change the installation
16、 site or method （3）拆下热电偶，清除保护管外面积垢(3) Remove the thermocouple, and clear away fouling on the surface of protection tube 注：当发现以上故障情况时，应将补偿导线和接线盒分开，然后分别检查热电偶与补偿导线，待确定故障所在后，在进行处理。如需存放则存放条件为环境温度+10+35，相对湿度80% ，周围空气中不应含有可能使仪表零件腐蚀的介质。Note:When above fault conditions are found, you should separate compensating lead wire from junction box, and then check the thermocouple and compensating lead wire. After the faults are determined, you can adopt measures.Storage condition (if
