Detailed Product Description

The Features of Thermocouple

1.With short thermal response time,reducing dynamic error

2.Bending installation

3.Wide measuring range

4.Good mechanical performance, pressure-resistant, shock-resistant, impact-resistant

The Application

It is usually cooperated with display meter, recording meter and computer etc. to measure the surface temperature of the mediums as liquid, steam and gas ranging from 0 to 1300^oC during various production processes directly.

The Working Principle

The two electrodes of sheathed thermocouple are made of different conductor materials. Where there is difference between measuring end and reference end, there will be hydroelectric potential, then the meter shows the cooresponding temperature of the hydroelectric potential, The hydroelectric potential of sheathed thermocouple will raise according to the temperature of measuring end. The size of hydroelectric potential has relationship with the materials of sheathed thermocouple conductor and temperature difference of two ends only while non-relevant to length, diameter of thermal electrode.

The Main Technical Parameter:

Standard: IEC 584, IEC 1515, GB/T 16839-1997, JB/T 5582-91

Insulation Resistance at Normal Temperature: The insulation resistance between the two eletrodes  and the outer protection tube of sheathed thermocouple is no less than 1000MΩ.m under condition that environment temprature is 15~35^oC, relative humidity is no more than 80%. That is to say, the insulation resistance of 1m long sheathed thermocouple is 1000MΩ, and  than of 10m long sheathed thermocouple is 100MΩ.