Explosion-proof walkie-talkies refer to walkie-talkies that can work in explosive gas environments. Explosion-proof walkie-talkies do not refer to walkie-talkies that can withstand explosions themselves, but refer to walkie-talkies that can work in an explosive gas environment. It is suitable for industries with harsh environment, dangerous combustible gas or dust, such as petrochemical, coal mine, chemical industry, thermal power, food processing and other industries. Because the walkie-talkie relies on electromagnetic waves to transmit signals, and the transmission of electromagnetic waves relies on the continuous conversion of electric field and magnetic field, in this conversion process, it is easy to produce electric sparks. The explosion-proof walkie-talkies are shielded from the places where sparks may occur during the conversion process due to the special processing of their lines.
First, national laws and regulations require, and second is safety. Production responsibility and the safety of people's lives and property are heavier important. Everyone knows that there will be no production accidents in this special environment, and there will be no minor accidents as long as there is an accident. So what are the special environments mentioned here? In addition to our traditionally recognized companies in the petroleum and petrochemical industry, such as the three major oil upstream, midstream and downstream industries, explosion-proof intercoms are used in these production links from exploration, refining to transportation. They also include food processing plants, flour mills, Such enterprises as granaries and garbage collection stations.
In addition to the above two typical environments, some other special production industries also need to use explosion-proof walkie-talkies for communication. For example, we often say battery companies, chip companies, mining, fertilizer plants, and some companies with hydrogen environments.
We need to clearly understand the user's use environment and help users choose the appropriate explosion-proof radio products. For example, is the customer using the mine or the factory? Is it a gas environment or a dust environment? What are the main combustible materials in the plant area and how much is the ignition? We often see that the former IIBT3 becomes IIBT4, do you use T4? The index of explosion-proof walkie-talkies is not just to pursue high. The high index is bound to cause the price of the product to rise, causing the user's budget to be wasted. It is necessary to help users choose the appropriate model through professional explosion-proof knowledge.
Speaking of explosion-proof walkie-talkies, with the rapid development of industry and coal mining industry, the use of walkie-talkies continues to increase, and many manufacturers have gradually produced matching explosion-proof walkie-talkies according to the particularities of industry and coal mine industry. Under the correct use, it can be used in special occasions such as flammable and explosive. This article takes Motorola GP328D+ CQST UHF as an example to analyze some common signs:
① Visible sign
In addition, in the upper left corner of the host, the corresponding explosion proof certificate number will be displayed.
[Tips] The meaning of U in the number CNEx16.3620U: This equipment has a component certificate and cannot be used alone in hazardous locations. If the last letter is X, it means that the device has special installation and use requirements.
Transmitting power: The transmitting power of the explosion-proof walkie-talkie is definitely not higher than 3.5W.
The circuit of the explosion-proof walkie-talkie is specially treated to shield the places where sparks can be generated during the communication conversion, while the ordinary walkie-talkie does not.
2. In the use environment
Explosion-proof walkie-talkies are walkie-talkies that can work in an explosive gas environment, while ordinary walkie-talkies can only be used in a non-explosive gas environment. (For example: ordinary supermarkets, shopping malls, office buildings, etc.)
3. At the place of use
Explosion-proof walkie-talkies are used in the production of fuel or chemicals, gas stations, transportation and storage sites, chemical plants, tanker warehouses, places containing large amounts of fine sand and dust in the air, flour processing plants, flax processing plants, mechanical processing workshops and coal Processing place, etc. The above places are all places where ordinary walkie-talkies cannot be used, and the use of ordinary walkie-talkies will cause an explosion.
4. In terms of call quality
In addition to high performance in a special environment, other advanced functions are also required. Can achieve a crisper, brighter voice quality, even in a noisy environment can also maintain unimpeded communication.
When choosing a walkie-talkie, we must first make clear the use scenarios of the walkie-talkie and fully consider the specificity of the use scenario, so that we can choose the right walkie-talkie to meet the needs of communication and ensure safe and efficient work.
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