The method of selecting metal detectors

Over the years, in the case of users using metal detection doors, the author has continuously concluded that: product technology design, process production, link control, quality inspection, etc., are the factors that manufacturers lay a solid position; and users must also follow According to their own needs and comparisons, we can choose the products that are truly applicable at a reasonable price. Then, what are the key points that users should learn when choosing metal detection door products?

Explicitly making purchases - the key to choosing a metal detection door

Technical security

The first thing to consider is whether the metal detection door will cause harm to the human body when using different technologies, production processes, and operating frequencies. This depends on whether the manufacturer has mastered the safety factor of the product. Selecting the safe frequency and power intensity will effectively control the electromagnetic radiation within a safe value. At the same time, according to the safety standard of the product in the national standard security gate technical specification, all the products can be touched when the product is powered by AC power. The impedance between components should not be greater than 0.5Ω, and the insulation resistance should not be less than 100MΩ under normal conditions. In this range, electric shock damage can be prevented when the protection ground is poor.

Functional emphasis

At present, almost all metal detection door products have the functions of 'anti-riot' and 'security', depending on the needs of users and have different focuses. The following explains separately:

A. Heavy 'anti-riot': At this time, emphasis should be placed on setting parameters of product sensitivity, and the relevant parameters of 'selecting' detection target and 'setting' detection target must be based on reliable data. Taking the 93rd and 94th Canton Fair as an example, the security requirements of the Canton Fair must ensure that 100% of prohibited items are brought into the venue. The prohibited items include firearms, controlled knives, and specially crafted, small and dangerous devices. The metal detection door is easy to use for guns and tools, but in order not to miss any tiny special metal tool, the product is divided into six areas, and different parameters are set in different locations. The person carries the handy habit of prohibited items and analyzes the parameters that can be set independently by the body parts that he may carry. At the same time, the parameters are collected and summarized repeatedly with the object as the target, and finally it is determined and locked. This effectively satisfies the user. Demand.

B. Heavy 'anti-theft': This type of demand comes from factories, mainly to prevent the loss of precious metals or products. The requirements for metal detection doors are also more demanding. Most of these users require the identification of the company's products as the standard, coupled with large employee traffic and the need for multiple products to be networked, which in turn increases the difficulty of the product's work environment and functional stability. Therefore, the user's selection of manufacturers is essential. : Does the manufacturer have design and technology upgrade capabilities? Taking TCL, Konka, Nokia and other mobile phone manufacturers and customer centers as an example, the solution of "Master of the Doors" is to take independent design and manufacturing solutions, collect experimental data repeatedly, and finally find the response value of the user's products. Set parameters, and through the network reference database stored parameters, re-programmed into the network operation support program, and independent control software with the work, several doors at the same time side by side, using the experimental results to make a solution, and ultimately be achieved.

Easy operation

Consideration should be given to whether the metal detection door is simple and easy to learn. Optional products equipped with CD-ROM training, such product manufacturers usually review many market feedback information, the reasonable adoption of user suggestions and a certain user groups of actual combat experience, its integrated design and configuration on the CD-ROM attachment, for the user's reference .

Product usability

The surface of some metal detection doors advertised a variety of features, it is recommended that users select the appropriate function according to actual needs and use. Select the function of the product to find the target you are exploring as the basic requirements, with the sound and light alarm, location display, setting parameters, storage protection, etc., other functions may not be considered, especially with computer networking features no practical value, is a business speculation, Misleading selling points.

Appearance of appearance

The metal detector door with its strong structure and excellent function and quality can give people a decisive style and deterrence.

Product legality

The metal detection door shall have the Type Inspection Report issued by the Ministry of Public Security and the Production Registration Approval issued by the Technical Protection Office of the Provincial Public Security Department and the business license of the production unit.

Reasonable price

It is of course the best in the world for low prices and good quality. The price of imported products is a reasonable price of 35,000 yuan. Its function basically meets the requirements of most people, and domestic products are suitable for about 20,000 yuan.

Installation and adjustment of local conditions, after-sales service to improve

In particular, it is proposed that the best state of use of the metal detection door is in an environment free from any interference source. The common 'disturbance sources' include: large-scale metals, large-scale equipment that generates vibration, and strong electromagnetic waves. Electrical appliances. If the place of use is a special environment in which the above-mentioned sources of interference exist, then there are important conditions for selecting the metal detection door, which is crucial for the full realization of product functions and the reliable and stable performance.

In addition, depending on the environment, the method of installation and commissioning of metal detector doors is also different. When it is necessary to install on uneven ground, it is necessary to consider how to correct the parameters to adapt to the acquisition error of the detection signal caused by the ground and the balance compensation circuit for the corresponding transmission and receiving signals when debugging. At this time, the user can request installation requirements from the manufacturer. Solve the problem. If it is installed outdoors, the product selected by the user must have a waterproof function or another rain protection facility. At the same time, the ground should be raised more than 10 cm to prevent wind, rain and damage to the equipment. The product is fixed and its firmness is also a user must pay attention to when installing the metal detector door.

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