供应热电偶
工业用热电偶作为温度测量传感器  ,通常与温度变送器、调节器及显示仪表等配套使用,组成过程控制系统  ，用以直接测量或控制各种生产过程中0-1800℃范围内的流体、蒸汽和气体介质以及固体表面等温度。
热电偶是由两种不同成分的导体两端接合成回路时,当两接合点温度不同时，就会在回路内产生热电流。如果热电偶的工作端与参比端存在有温差时，显示仪表将会批示出热电偶产生的热电势所对应的温度值。
●特点
?装配简单，更换方便  
?压簧式感温元件，抗振性能好；
?测温范围大  
?机械强度高，耐压性能好  
●工作原理
热电偶的电极由两根不同导体材质组成。当测量端与参比端存在温差时，就会产生热电势，工作仪表便显示出热电势所对应的温度值。  
●主要技术参数
产品执行标准
IEC584
IEC1515                                                                                                                                                                                  
GB/T16839-1997                                                                                                                                                                          
JB/T5582-91                                                                                                                                                                                    
●常温绝缘电阻
热电偶在环境温度为20±15°C，相对湿度不大于80%，试验电压为500±50V（直流）电极与外套管之间的绝缘电阻>1000Ω.m。                                                                                                                                                            
●型号及选型
                                                        1  321钢管可不用标准                                                                                                                            
G  高温合金不锈钢管                                                                                        
F  耐腐不锈钢管  316,316L                                                                      
T1  高铝质（氧化铝）陶瓷外保护管                                                      
T2  刚玉陶瓷外保护管