GSH5 speed sensor, speed protection, belt slip sensor, rotation monitor 

 Product Name: Speed ??Sensor 
 Product categories: intrinsically safe 
 Product Model: GSH5 the 
 Product Description: Working voltage: DC12V Current ≤ 80mA; 
 GSH5 type speed sensor used to monitor and protect the belt conveyor for coal mine operation or operates under the belt conveyor belt slip (stall) or speeding. Magnet fixed to the driven wheel end, the speed sensor to the rack, sensor side close to the magnet. The normal operation of the belt conveyor, press the calibration button. 


 Will be magnet mounted on the end of the belt conveyor driven wheel, followers driving wheel rotation speed sensor close to the magnet, so that the magnetic component of the speed sensor to produce the positive pulse signal to the driven wheel speed is proportional to each positive pulse triggered single The steady-state circuit, the reverse after a certain pulse width, pulse, positive pulse at this time a positive pulse and magnetic components of the issued and enter another monostable circuit. Normal speed when the two pulse input monostable circuit transformation, the "speed" side output high; if the belt is slipping, the driven wheel speed decreased, issued by the positive pulse of magnetic components will not be able to trigger with the previous pulse The pulse is synchronous, so that after a delay by a period of time the speed sensor "speed" side output low, stall lights, the host performs the relay release, cut off the belt conveyor to control power to achieve a low-speed protection, and also issued the language of alarm. Toggle switch to change the pulse width of monostable circuit, so the speed can be 1 to 3 rev / sec adjustable. 
 GSH5 speed sensor, speed protection, belt conveyor protection device