Many people only care about what gas can be tested when they buy gas detectors, but only when they see the instructions after purchasing them, they find that they have bought them wrong. Forced use will only lead to continuous mechanical failures, which not only wastes money, but also makes the purchasing staff unreliable. In fact, it is not easy to make mistakes if you only need to clarify the following five steps and consult customer service in detail.
1、 Clarify your needs
When selecting a gas detector, what gas should be tested first? In what environment? Portable or fixed? And other attached functions. These reasons must be fully considered. Otherwise, the original plan to buy an oxygen detector will result in the purchase of an ozone detector, which will cause a big problem, not only delay, but also cause a lot of unnecessary economic losses.
2、 Specify the working conditions of the use environment
All kinds of gas detectors have strict requirements for the site environment. Generally, the temperature is - 20~60 ℃, the humidity is 0-95% RH, the pressure is 80-120 Kpa, etc., including dust and flow. Because other impurities in the environment will have a great impact on the test results, leading to unforeseen losses. At the same time, understand the working conditions of the site and provide the information to the manufacturer in time. The manufacturer will have corresponding solutions.
3、 Define the site safety situation
In many cases, the site where the gas detector is installed and used has mandatory requirements such as explosion-proof. The coal, petroleum and chemical industries have very strict requirements for explosion protection, which requires that the instruments and equipment themselves be explosion-proof with explosion-proof certification. Other environments may require the gas detector to have environmental protection product certification or measuring instrument license and other certificates.
4、 Define the functional requirements for use
The general function of the gas detector is to check the gas concentration value and give an alarm when exceeding the limit. But many customers need not only these functions, but also more additional functions. Signal output is one aspect, such as current output, digital signal output, voltage output and switching output. There may be other special requirements, such as network cable interface and wireless signal. At the same time, data recording and processing are also common requirements.
5、 Identify sensor origin
Many gas detector manufacturers' sensors are nominally foreign sensors, but in fact, they are not all. Some domestic sensors often pass off as imported sensors to pit consumers. When encountering this kind of situation, carefully check the commodity information, and sign the product purchase and sales contract to ensure your legal rights and interests when necessary. At the same time, we recommend that you try to purchase the authentic products of Kailu Electronics through official channels to obtain satisfactory product experience and services.