Thermocouple in the aspect of using the right choice

Normally production and manufacture of thermoelectric materials are relatively expensive, especially the use of the precious metal, because of the temperature measurement of the distance between the point and the actual are more far, in order to effectively reduce and save the thermocouple materials, reducing the cost of manufacturing and production, normally we will choose compensation wires to the free end of the thermocouple, directly to the temperature is relatively stable in the control room, or the connection above the terminal of the meter.

here small make up must remind you that in the thermocouple compensation wire, the heat is the electrode extension, prompting can be moved to the control room of the cold junction of the thermocouple is suitable for the position, or the meter terminal, so itself is actually does not have to eliminate the cold end temperature, or affect the temperature of the temperature measurement, etc. , so also does not have any compensation, you will need to use other way of correction, to compensate of the cold end temperature, ensure that its are not affected by temperature below freezing, so we in the choice of thermocouple compensation wire, it is important to note that the models match, the connection is wrong polarity can't appear when the phenomenon, and thermocouple and compensation conductor on the connection end temperature, can't do more than one hundred degrees Celsius.