Japan's ATAGO produces a concentration meter that is specifically designed to test diesel-specific urea fluids. With the deepening of the concept of environmental protection, China's exhaust emission standards in recent years have reached a level of one year. China will implement mandatory IV emission standards for heavy-duty diesel engines starting in 2010. At present, the SCR (Selective Catalytic Reduction Technology) technology has become the preferred technology for diesel engine country IV standards. Domestic engine manufacturers have begun to use SCR technology to meet environmental protection requirements. Diesel exhaust gas treatment fluid (commonly known as: automobile urea fluid, vehicle urea solution, and automobile environmental protection urea fluid) is a consumable product that must be used in SCR technology. Used in diesel engines. It is used in SCR technology to reduce nitrogen oxide pollution in diesel exhaust gas. Its composition is 32.5% high-purity urea and 67.5% deionized water. The SCR system includes a urea tank (loaded with diesel exhaust fluid) and an SCR catalytic reaction tank. The operation process of the SCR system is: When it is found that there is nitrogen oxide in the exhaust pipe, the urea tank automatically ejects the diesel exhaust gas treatment liquid, and the diesel exhaust gas treatment liquid and the nitrogen oxides undergo an oxidation-reduction reaction in the SCR catalytic reaction tank, generating no Contaminated nitrogen and water vapor are exhausted. If the diesel engine exhaust fluid is not loaded, or the purity is not enough, or the quality is inferior, the vehicle engine will automatically decelerate. At the same time, the inferior quality of the diesel exhaust fluid will contaminate the catalyst in the SCR catalytic reaction tank, causing serious consequences. In fact, in Europe, this policy has been implemented since 2006. European diesel exhaust fluid is called Adblue. In the United States, starting in 2010, with the implementation of the EPA2010 standard, the application of automotive urea fluids has also been intensified. In the United States, the diesel exhaust gas treatment fluid is called DEF (Diesel Exhaust Fluid). The main representative is BlueDEF. However, in China, the production of diesel exhaust gas is still a new industry. The PAL-Urea diesel-specific urea fluid (DEF) concentration meter produced by Japan ATAGO is specifically designed for the diesel engine industry. PAL-Urea has been recognized in Europe and the United States as the only reliable product for easy and accurate measurement. Diesel engine-specific urea (DEF) can only play its role at a concentration of 32.5%. The use of PAL-Urea to maintain the appropriate concentration can ensure the effectiveness of its urea solution. PAL-Urea is light and small, and the measurement method is simple. Just press the start button for 3 seconds to get the concentration. Its power supply is 2 AAA batteries and can measure about 11,000 times. Plasma Cutting Machine,Cutting Machine,Inverter Plasma Cutter Juba Welding Equipments Manufacturing Co., Ltd. , http://www.zjweldingmachine.com