The so-called magnetic lock is a type of lock designed according to the design principle of electromagnet. It is mainly based on the strong magnetic force generated when the current provided passes through the silicon steel sheet to suck the door. Usually, magnetic locks are mainly used in the security system of the community. However, some magnetic locks used in the market will have insufficient suction after a period of use and cannot lock the door. Why is this? First, we need to judge whether the magnetic lock has no suction at all or a little suction. Then the main reasons for the lack of suction of the magnetic lock are as follows:
1. The magnetic lock was not installed in a standardized manner:
The traction plate of the magnetic lock was installed too tightly, so that the magnetic lock body and the traction plate were not completely attracted face to face, but only partially attracted. This will inevitably cause insufficient suction. You can loosen the traction plate a little to allow the traction plate to have a range of movement, so that the lock body and the traction plate can be completely attracted.
2. If the inspection is not the above problem, you can consider that it is a problem with the selected wire. You can use a multimeter to measure the voltage of the magnetic lock power input (the magnetic lock is normally 12V). The farther the magnetic lock is from the power supply, the greater the voltage drop will be. Insufficient voltage will also cause insufficient suction of the magnetic lock, or no suction at all. We require: the distance from the power supply to the magnetic lock is within 50 meters, and it is recommended to use a power cord with a cross-sectional area of 1.0 square millimeters; if it exceeds 50 meters and is within 100 meters, the cross-sectional area of the power cord is doubled (2.0 square millimeters), or two 1.0 square millimeter power cords are connected in parallel.
Therefore, the quality of magnetic lock work is closely related to its installation quality and the wire material selected during the installation process. Therefore, we must pay attention to the quality of major details during the installation process. It is best to find some professional magnetic lock installers to install on-site to ensure that there will be no lack of suction or loss of suction during use.
Magnetic lock is a device that uses electromagnetic force to absorb and prevent. If its magnetic force weakens, its prevention ability will also be greatly reduced; so when we find signs of insufficient suction, we should check clearly what problems have occurred and solve them in time to ensure that the magnetic lock can play a greater role.
