Sensor GVD1200 tear, tear off with the protection of the belt conveyor belt protection, tear protect the sensor 
 Intrinsically safe, the use of pressure-sensitive principle, contain explosive gas mixtures of methane and coal dust in underground coal mine occasions, and supporting the use of integrated protection device with the coal mine belt. Access intrinsically safe system signaling devices, tear protection device can also be used for occasions such as the ground of non-explosion-proof belt conveyor belt conveyor tape. , 3000 g of material when the belt longitudinal tear drain 100Cm2 area, sensor action, the host cut off the belt conveyor power, tear tape to protect, prevent the accident. Sensor the total area of ??3000cm2. 2, the applicable environmental conditions a) altitude over 2000 meters, pressure 80 ~ 110Kpa; b) the ambient temperature: -20 ℃ ~ +40 ℃, the highest annual average temperature of 20 ° C; c) The relative air humidity ≤ 95% (+25 ° C); d) e) in the environment of corrosive gases and vapors without breaking the metal and insulation; f) free from water and other liquid intrusion in the mine with a mixture of explosive gas (methane); place; g) no significant shake and shock and vibration; h) The pollution level 3; i) Installation Category II class. 3, the main technical parameters a) enclosure protection class: IP54; b) Dimension 1360mm × 340mm × 38mmc) Weight: 18.5kgd) Contact capacity: DC12V/100mA; e) The introduction of cable outer diameter: φ6 ~ φ10 mm. 
 GVD1200 tear sensors, tear-off with the protection of tension protection devices, speed, temperature sensor