One Product Overview

WZP industrial explosion-proof thermistor is used as a sensor and display instrument for temperature measurement and control, to directly measure and control the temperature of gases, liquids, and vapors in the production process. Our company's chemical specific explosion-proof thermocouples and thermal resistance products have explosion-proof performance in accordance with the national regulations“Explosion proof electrical equipment for explosive environments”Standard design and manufacturing, with thermoelectric characteristics that comply with international standardsIECStandard, and tested and qualified by the National Instrument Explosion proof Safety Supervision Station. Explosion proof thermocouple The structure, principle, and assembly method of thermal resistors are basically the same, with the main difference being that the explosion-proof product junction box (housing) is designed using high-strength aluminum alloy die-casting, and has sufficient internal space, wall thickness, and mechanical strength. The thermal stability of the rubber sealing ring meets national explosion-proof standards.

II productfeature
Pressure spring type temperature sensing element with good anti vibration performance;
High measurement accuracy;
No need to compensate for wires, saving costs;
Imported thin film resistor components with reliable and stable performance.

IIIworking principle
Explosion proof thermistor utilizes the principle of gap explosion-proof to design junction boxes and other components with sufficient strength. All components that can generate sparks, arcs, and dangerous temperatures are sealed inside the junction box cavity. When an explosion occurs inside the cavity, it can be extinguished and cooled through the gap between the joint surfaces, preventing the flame and temperature after the explosion from being transmitted outside the cavity, thus achieving explosion-proof.

4Main technical parameters
Product execution standards
IEC751
JB/T18622-1997
JB/T8623-1997
JB/T5518-91

Five Room temperature insulation resistance
The thermistor operates at an ambient temperature of15—35°CThe relative humidity is not greater than80%The test voltage is10—100VInsulation resistance between (DC) electrode and outer sheath>100MΩ.

VIMeasure temperature and tolerance

7Model naming convention