GWK42 mining intrinsic safety temperature sensor

Overview
The temperature sensor is suitable for use in environments containing explosive gas mixtures such as methane and coal dust underground in coal mines. It is used in conjunction with the main unit of the comprehensive protection device for coal mine belt conveyors or the main unit of the automatic water spraying and dust reduction device for mining. It is connected to the intrinsic safety system signal device and used as an over temperature protection for the belt or motor of the belt conveyor; It can cause the belt conveyor to emit an over temperature signal and shut down the system, and can also be used in situations where there is a belt conveyor on the ground.
Main technical parameters
1. Working voltage: DC12-24V; Working current: ≤ 40mA;
2. Temperature measurement range: 0 ℃ to 100 ℃;
Temperature protection action value: 40 ℃± 3 ℃ (factory setting);
The temperature action value can be set according to the usage situation.
3. Signal output:
a. Switching signal: When there is no over temperature detection, the contact opens; When there is an over temperature condition, the contacts close. A set of normally open, contact capacity: DC24V/1A;
b. High and low level signals: no over temperature state output high potential, Vk≥9V； When there is an over temperature state, output a low potential, Vk≤3V；
c. Frequency signal: 0 ℃~100 ℃ corresponds to a frequency of 200~1000Hz;
d. Analog signal: 0 ℃~100 ℃ corresponds to DC4~20mA.