The results of the measured differential pressure transmitter name suggests is the pressure difference, namely △ P = ρg △ h. And since the tank is often cylindrical, its cross-sectional area of ??a circle S is constant, then gravity G = △ P · S = ρg △ h · S, S constant, G and △ P proportional relationship. As long as the accurate detection of △ P value differential pressure transmitter principle, and is inversely proportional to the height of △ h, differential pressure transmitter changes in temperature, although the oil volume expansion or narrowing differential pressure transmitter intelligent, practical level rise higher or lower, the detected pressure is always maintained constant. If you need to display the actual level, temperature compensation can be introduced into the medium to be addressed. Depot metering (1) should be considered in the design and installation of the bottom of the tank to take pressure lower opening as possible, in order to eliminate errors caused by temperature changes differential pressure transmitter, the introduction temperature compensation if necessary. (2) the level in the tank of the tank cross section ranging case (as small great), to consider compensation measures. (3) In order to achieve a certain precision, such as when the top of the tank is equipped with breathing valve, differential pressure transmitter must be used and not with pressure transmitter. When the exposure of the tank or less precision pressure transmitter can be directly used for easy installation. (4) maximize the use of smart table the second table, can easily change the range, temperature compensation and so on. Intelligent differential pressure transmitter, China-Technology (online consultation), differential pressure transmitter is provided by Jinan-Technology Co., Jinan Huahui Technology Co., Ltd. (www.cnhuahui.com/) Shandong Jinan, pressure meters leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. - Technology leader in China with the staff warmly welcome all inquiries negotiations to create Hua Hui Technology better future.