Temperature recorders have been widely used in many fields, especially in applications where real-time recording of temperature and humidity changes in the whole process are required. The temperature and humidity changes in the process of storage, production, transportation, etc. are reflected in accordance with the changes recorded by the recorder. PC analysis software for scientific and effective management, analysis and induction. 1. Application in the testing and certification industry As China enters the WTO, the state's requirements for the quality and safety of goods are becoming stricter. If home appliances are to be circulated in the market, they must pass 3C certification. Therefore, major inspection bureaus or certification centers must conduct inspections in accordance with national standards. Temperature rise detection is one of the more important ones. In the national standard GB4706.1-2005/IEC60335-1:2004, there are provisions on heating and winding temperature rise, such as "11.1 in normal practice, the appliance and its surrounding environment should not reach excessive temperature;" "In addition to winding insulation Outside the temperature rise, the temperature rise of other electrical insulation is determined on the surface of the insulator, and its position is the position that may cause the following faults: 1. short circuit; 2 contact between live parts and accessible metal parts; 3 jumper insulation ; 4 creepage distance or clearance is reduced below the specified value;" "11.8 continuous monitoring of temperature rise during the test, the temperature rise value shall not exceed the value shown in the table."
The temperature recorder can record the temperature change for a long time, and can provide a reference for whether the electromechanical product is abnormal during operation. For example, washing machines, refrigerators, air conditioners, juicers, microwave ovens, etc. (of course, each has its own standard), all need to do safety testing (temperature rise detection is a part of the safety regulations). Broadly speaking, most electrical appliances that are energized and heated may have to be tested for safety, which means that most organic laboratories, or companies in related laboratories, may use temperature recorders. 2. Application in the home appliance industry In fact, this industry has a direct relationship with the inspection or certification industry. There is a saying in the old saying: Knowing yourself and knowing each other can only be a battle. If the home appliance product is sent to the inspection bureau for testing, what method can be used to pass the test sample sent out by itself? This can effectively save the cost and time of detection. The best way is to follow the standards of the testing bureau. One is to use the testing standard by the testing bureau, and the other is to use the instrument used by the testing bureau. 3. Applications in the IT industry IT, a booming industry, one of the fastest growing industries, an industry that has created countless myths, and one of the most tested industries. If home appliances need to do temperature rise detection, then the IT industry is definitely needed. Because who can guarantee a computer that works for 10 hours in a row, will not cause safety problems due to fever? In addition, temperature monitoring is required during the process of plate-welding pins. As we all know, if the CPU temperature is too high, it will cause the computer to crash. If the temperature is too high during the processing, will it cause the processor to malfunction? This is undoubted, so the temperature rise detection is required for both the plate making and the finished machine. 4. Application in food storage and transportation Because the food storage and transportation process time is not a short-term problem, the relative equilibrium humidity in food preservation is an important indicator to ensure food safety. The relative equilibrium humidity directly affects the growth of colonies. For example, in the range of equilibrium relative humidity of 95% RH to 91% RH, the colonies that are easy to grow are Salmonella, Blint, Lactobacillus, Mold and Yeast. The food preservation cycle is also related to temperature and equilibrium relative humidity. The balance of the relative humidity value is 81% RH. The shelf life is 14 days at 27 °C and 24 days at 21 °C. If the equilibrium relative humidity is increased to 85% RH, these The indicator will be reduced to 8 days at 27 °C and 12 days at 21 °C. The equilibrium relative humidity of the hygroscopic material plays a decisive role.
Balanced relative humidity is defined as the humidity value obtained by the surrounding air when the substance is not exchanged with water in the air. This definition is clear, in order to successfully store and maintain these products, environmental climate control and packaging must be carefully specified. At the same time, many foods are stored in too dry conditions, and their taste will be somewhat deteriorated. In response to this situation, it is required to record changes in temperature and humidity in real time to ensure food safety enters the consumer's mouth. When transporting frozen or chilled foods over long distances, it is very important to prove that the goods are always in the specified temperature and humidity conditions when receiving. The solution to the dispute is to put a temperature recorder in the cargo compartment at the time of shipment and start it. It will faithfully record the temperature and humidity changes throughout the transportation process, and the carrier will know immediately if it is responsible. At present, well-known fast food companies such as KFC are using temperature recorders.
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