GEJ30 Mining Intrinsic Safety Deviation Sensor GEJ30 Mining Intrinsic Safety Deviation Sensor I. Overview& The GEJ30 deviation sensor is an intrinsically safe and simple mining equipment, with an outer shell made of HT250 cast iron; The output is a mechanical switch, which works stably and reliably. Mainly suitable for hazardous areas with mixed gases, as well as workplaces such as open-pit coal mines and coal preparation plants, it is used as a coal stacking signal detection device for the protection and control of mining belt conveyors, and can achieve deviation protection of belt conveyors. 2、 Main technical parameters& 1. Contact capacity: DC24V/0.5A. 2. Contact resistance: The contact resistance of the closed contact shall not exceed 0.1 Ω, and shall not exceed 0.2 Ω after vibration and impact. 3. First level action angle: 20 °± 3°； & nbsp;       Reset angle: 15 °± 3°； Secondary action angle: 30 °± 3°； & nbsp;       Reset angle: 20 °± 3°； 4. Action force of the touch rod: 25N~55N. 5. Action performance: The sensor is subjected to action force, and when the probe rod rotates to the action angle, it should immediately act. The normally closed contact is disconnected, and after the action force is eliminated, the probe rod automatically returns to its original position. When the reset angle is reached, it immediately recovers, and the normally closed contact is closed. 6. The maximum angle for probing action: ≥ 70 °. 7. The transmission cable length between the sensor and the host should be ≤ 500m, using MYQ3 × 1.0mm2 mobile lightweight rubber sheathed flexible cable with safety standards and valid period. The cable parameters are: R: 12.8 Ω/km, L: 0.8mH/km, C: 0.06? F/km. 8. The shell protection should comply with the protection level IP54 in GB4208< III. Scope of Application& nbsp; Mainly used to detect the deviation of the belt conveyor belt, and to protect the belt through programmable controller programming