Industrial explosion-proof temperature sensor as a temperature measurement and control sensor and display instrument matching, in order to directly measure and control the production process of gas, liquid and steam temperature.

Explosion-proof thermocouple, explosion-proof thermal resistance structure, principle and assembly methods are basically the same, the main difference is the flameproof product junction box (shell) in the design of high strength aluminum alloy die-casting, and has enough internal space, wall thickness and mechanical strength, the thermal stability of rubber sealing ring are in line with the national explosion-proof standards. So when the explosive mixture of gas inside the junction box explodes, its internal pressure will not destroy the junction box, and the thermal energy generated from this can not diffuse outward-explosion. As long as the user strictly abide by the rules of product use, explosion-proof thermal resistance products can achieve reliable explosion-proof effect.

The characteristics of

Pressure spring type temperature sensing element, good anti-vibration performance;

High measurement accuracy;

There is no need to compensate the wire, saving the cost;

Imported film resistance elements, reliable and stable performance.

The working principle of

Explosion-proof explosion-proof principle is to use the clearance thermal resistor, the design has enough strength of the junction box, and other components, all can produce sparks, arc and dangerous parts are sealed in the junction box cavity temperature, when the explosion cavity, can remove from heat and cooling by joint clearance, made after the explosion flame temperature and not reach outside the cavity, flame-proof thereby.

Main technical parameters

Product execution standard

IEC751 JB/T18622-1997 JB/T8623-1997 JB/T5518-91

Insulation resistance at room temperature

Explosion-proof thermal resistance in the ambient temperature of 15-35 °C, relative humidity is not more than 80%, the test voltage is 10-100V (DC) between the electrode and the outer sleeve insulation resistance >100MΩ.