Wooden door shopping guide: buy smart door lock tips

First of all, the lock surface should have a metallic luster, and there must be no obvious scratches. The standby current is about 300 mA, and the operating current is lower than 900 mA. After a long time of power-on, the surface is slightly hot, but it is not hot. The force of the electric mortise lock should be sufficient. After the pressure is pressed, the lock can automatically bounce and be powerful. It is best to perform 4000 on-off tests. If it is found that the lock is weak during the process, or if the bounce is not in place, or if it cannot be lifted, it is considered unqualified. Some engineering consultants ask: Is it a two-wire or multi-wire electric plug lock? This is the case. The multi-wire electric plug lock is controlled by a single-chip microcomputer. The operating current of the electric lock is controlled by the single-chip microcomputer, and the lock body will not It is too hot and has a delay control function and a magnetic door detection function. The delay control function can be used for the door with a bad spring. The magnetic door monitoring function can provide the controller with real-time monitoring of the door opening and closing state. Although these functions are not necessarily used, the quality and stability of the electric locks controlled by the single-chip microcomputer and the electric lock without the single-chip control are not at one level. So I suggest you don't have to save a little money. Two-wire electric plug lock, the internal structure is very simple, just a mechanism that drives the electromagnetic coil with current, the working current is large, and the heat is severe enough to damage the electric lock at a certain time. Not recommended.

Basic purchase knowledge of electromagnetic lock

The appearance should be exquisite, the surface should not have obvious scratches or rust. The key of the magnetic lock is to look at his tensile strength. This requires professional equipment to be measured, so only after installation, the hand pulls a sudden force. It is normal to pull it off, but it should be noted that the installation of the electromagnetic lock body should be consistent, and the suction iron should not be installed too tightly, otherwise it will affect the tensile strength.

Pre-sale of smart door locks

Is the purchase of domestic electric lock or imported electric lock?

Imported electric locks are too expensive, the purchase price must be more than 1,000 pieces, and there are no two thousand pieces to sell to users. Although the real import electric locks are mature, the repair rate of products is low, but the service is still a problem. Once there is a problem, foreigners can't move and say that China's power is unstable and many other reasons, it is very troublesome. I suggest to buy a domestic lock. The price is very affordable, and most of them are produced or integrated into Taiwan's manufacturing process (Taiwan is the main OEM base for foreign electric locks) and quality standards, and the difference is not much worse.

Is it an electric lock, an electromagnetic lock or an electric lock?

What kind of lock you have to match depends on what you are. Double open (can be opened inside or outside) Glass door is best to use electric plug lock, the company's internal single open (can only open or only open) wooden door is best to use magnetic lock, magnetic lock has called electromagnetic lock. The magnetic lock body is installed on the upper part of the door frame. Some people don't think it is not hidden installation. It is not beautiful. In fact, it is used in foreign countries. The use of foreign magnetic locks requires redundant electric locks. The stability of magnetic locks is also higher than electricity. Plug lock, but the safety of the electric lock is high. The electric lock is installed on the door side and the mechanical lock such as the ball lock. The safety is much lower, and the wiring is inconvenient, but the price is cheaper. It is not recommended. It is best to buy magnetic locks and electric locks for the community. The electric locks are relatively loud. The general building intercom is equipped with electronic locks. Now there is also a silent electric lock, which can be considered. However, no matter what lock you use, you should pay attention to rain protection. The locks are made of iron and are easy to rust. This should be noted. There are many other electric locks that are not popular. It is not recommended because the production scale is limited, the application cases are too few, the products are not mature, and it is best to use them less. For example, there is a power-off lock on the market. This kind of lock can meet the requirements that the door is still closed after the customer loses power, but it does not meet the fire-fighting requirements. It may not pass the acceptance, and it has requirements for the thickness of the door frame. There will be unexpected troubles. So it is still better to recommend to customers.

Differential Pressure Transmitter

Differential Pressure Transmitter,Diff Pressure Sensor,Differential Air Pressure Sensor,Differential Pressure Sensor

Wuxi Winsun Automation Instrument Co., Ltd , https://www.winsunwx.com