Industrial flameproof platinum resistance is a temperature sensor. In the industrial automatic control system is widely used, through the temperature sensor, can control the temperature parameters of the object into electrical signals, transferred to display, record and adjust the instrument, the system to detect, adjust and control. In chemical plants and production sites, there are often various inflammable, explosive and other chemical gases and vapors. If ordinary platinum resistance is used, it is very unsafe and easy to cause environmental gas explosion. Therefore, flameproof thermocouple must be used as temperature sensor in these occasions. The flameproof platinum resistance products produced by our factory are suitable for places with explosive gas danger within d II BT4~ D II CT6 temperature group range. The flameproof thermocouple produced by our factory uses imported elements as temperature sensing elements. Its technical performance conforms to zBY301-85 industrial platinum electric technical conditions and indexing table. At the same time, the products meet the general requirements of explosion-proof electrical equipment for explosive environment GB3836.1-83, GB3836.2-83 standards.

Main technical indicators

Range specifications

Note: "T" is the measured temperature value of the temperature sensing element. The double platinum resistor is only supplied to grade B

The thermal resistance allows current to pass through the platinum resistance to be measured at a maximum of 5mA. Explosion-proof type and class group: D II BT4 or D II CT4; D II BT6 or D II CT6 case protection class: IP54

Principle of flame-proof structure thermal resistance fabricated thermal resistance of the structure, principle and basic same, SuoQu is, explosion-proof products on the junction box (shell) in the design of the structure of the flameproof special, junction box with high strength aluminum alloy die casting, and have enough internal space, thickness and mechanical strength, thermal stability of the rubber sealing ring conform to the state explosion protection standard. Therefore, when the explosive mixture inside the junction box explodes, the internal pressure does not destroy the junction box, and the resulting heat cannot be diffused outwards. As the product adopts the above special explosion-proof structure, the product fully conforms to the range of explosion-proof temperature groups from D II BT4 to D II CT6. As long as users strictly abide by the rules of product use, the product can achieve reliable explosion-proof effect. Electrical equipment is divided into two categories: Class I -- electrical equipment used in underground coal mines; Class II - explosion-proof grade of factory electrical equipment explosion-proof grade of flameproof thermal resistance is rigid. It is suitable for explosive gas mixture. The maximum safety gap is divided into A, B, C three levels. Temperature groups The temperature groups of flameproof tropical internal resistance are divided into six groups T1~T6 according to the highest surface temperature of the exposed part. Types and specifications of flameproof thermal resistors

Types and specifications of flame-proof armored thermal resistors