Infrared photoelectric effect on the fast rolling door: when there is any object under the door curtain or in the middle of the guide rail, the infrared photoelectric can sense, the original green light speed will become red, this is the infrared photoelectric will send a signal to the electronic control system, the originally falling door curtain It will reverse and rise to prevent items and personnel from being pinched.

    This is the reflection principle of infrared photoelectricity: the photoelectric sensor first emits an infrared beam to reach or reflect the infrared beam through an object or mirror, and the photoelectric sensor receives the reflected beam and judges the existence of the object according to the strength of the beam. SEPPES fast rolling shutter door is a standard single-point infrared photoelectricity. For customers with high security protection requirements, you can choose extended light curtain protection. Generally, there are three specifications: 1 meter, 1.5 meters and 2 meters, and it is equipped with security protection. Soft bottom edge, quick lift and use more secure.