At present, there are a variety of Ethernet temperature and humidity Sensors on the market, which are mixed and mixed. It seems that the Ethernet interface temperature and humidity sensor is the Ethernet temperature and humidity sensor. It seems that the technical parameters of the leaflet are almost the same, giving engineers the choice. Confused, which type of sensor should I choose? ? The author summarizes the following points according to the actual test, on-site understanding and other aspects for the selection of engineers:
1. Professional, whether a company is professional or not, depends on whether the company's position in the industry and equipment are advanced, and whether there is any achievement in the technical field. The establishment time of the company is also an inspection standard. After all, it is established for a long time, experience and Technically mature.
Humidity measurement is not simply a technical issue. As a composite technology of electronic technology and physical chemistry, experience is very important. The ignorant is fearless. Not all electronic engineers understand this, especially the design of production processes. Making products and producing products is not the same experience.
Therefore, unlike the collection of the cottage, it is more secure to choose a historical and professional company. After all, these sensors are not bought for their own use, they are used by customers, and quality assurance is very important.
2, equipment, temperature and humidity sensors are required to have accuracy, it is very important to have the relevant calibration equipment to calibrate the products before leaving the factory, not the accuracy of the device is the accuracy of the finished product. A high-precision humidity environment is expensive, and it is calibrated with national standard meters every year and a calibration certificate is obtained. These must be clearly checked with the manufacturer. 3% of the product accuracy, at least 1% of the equipment can be guaranteed.
3, batch, product production batch is very important, the product is not batch, then the reliability of the device is not guaranteed, we must know that IC manufacturers usually do not accept small batch orders, and the old IC in the electronic market, the refurbished IC is the mainstream . This is also the reason for the unstable quality of some small factories.
A simple way to determine the batch size of a product is to look at the general-purpose housing used for the outer casing of the product or the outer casing of the mold. Usually, only the mass-produced products will open the mold.
4, security, network areas, everywhere is threatened. Data security issues are very important. At present, most manufacturers choose integrated protocol products, but these integrated modules are usually used in commercial applications. The factory settings are made in the most convenient way. The security is not enough, it is easy to be modified, and it is attacked by the network. I have had such products and used them in the public network. After 2~3 months, the network parameters have been revised. Therefore, professional vendors generally reprocess this, rewrite the underlying program, and enhance its security.
5, shape design, usually I like to choose products that meet the standards, for example, there are usually 86 junction boxes on site, the size of the product is easy to install. Pluggable terminals or connectors are important, otherwise wiring for future construction and maintenance can be a pain. These details reflect the degree of care of the manufacturer. As for the beauty, it is a matter of opinion. The author prefers small products.
6, function, to figure out that the focus of their needs is the sensor. Some of the additional features of many products now have an impact on accuracy. Moreover, a sensor connected to so many lines is very troublesome and not good-looking.
Servo connectors provides a wide range of metric for small Sensors and actuators.The ingress protection is available and rated to IP 67, these connectors are ideally suited for industrial control networks where small sensors are required. Connectors are either factory TPU over-molded or panel receptacles supplied with sold-cup for wire connecting or with PCB panel solder contacts. Field attachable / mountable Connector is also available for your choice.
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