The safety light barrier belongs to a auxiliary function and it’s mainly used for active protection. The device is equipped on the both sides of filter press. The actual function not only just protect operators, but also can works as emergency pause, so stop the plate shifter for discharging.
The system is consist of light projector, light receptor, control system and wires. The light projector send the light to receptor, thus it form a light barrier. The light signal will be processed by the control system to judge whether it’s disconnection or connection.