Industrial flameproof thermocouples are temperature sensors that are widely used in chemical industry automation systems, through temperature sensors.

The temperature parameter of the control object can be turned into an electrical signal, transmitted to the display, recording and adjustment instrument, and the system can be tested, adjusted and

control.

In chemical plants, production sites are often accompanied by a variety of flammable, explosive chemical gases, steam, if the use of ordinary thermocouples

Often unsafe, it is very likely to cause an explosion of environmental gases. Therefore, in these occasions, it is necessary to use an explosion-proof thermocouple as a temperature sensor.

The flameproof thermocouple products produced by the company are suitable for use in explosive atmosphere hazards in the dIICT6 temperature group.

working principle:

If a closed loop is composed of two homogeneous conductors (hot electrodes), when there is a temperature gradient at both ends, there is a current in the loop, and there is a thermoelectric potential between the two ends (as shown in the figure below).

Principle of explosion protection:

Using the gap-explosion principle, designing a junction box and other components with sufficient strength to seal all parts that generate sparks, arcs, and dangerous temperatures into the junction box. When an explosion occurs in the chamber, it can be extinguished through the joint gap and Cooling so that the flame and temperature after the explosion are not transmitted outside the cavity

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