Pressure transmitter has been the development capacitance transmitter proliferation of different types of silicon piezoresistive transmitters, differential inductors and ceramic capacitive transmitter such as the transmitter. In the 1990s, the rapid rise of fieldbus technology, industrial process control system gradually to fieldbus control system with two-way communications and intelligent instrument control direction. Resulting in a new generation of intelligent pressure transmitter. Their main features are as follows. 1, since the compensation function such as nonlinear, temperature error, response time, noise and cross induction and the like. 2. The self-test at power-on self-diagnostic function, implemented in the work of running checks. 3, has a function of two-way communication system, a closed loop between the microprocessor and the basic work of the sensor. 4, information storage and memory function. 5, the digital output. Based on the above function pressure transmitter price, precision intelligent pressure transmitter, stability, repeatability and reliability have been improved and improved. Its ability to achieve the two-way communication and remote control of computer software and other state-set range. 6, choose what kind of excitation voltage: type of the output signal is determined how to choose the excitation voltage. Many amplification transmitter has a built-in voltage regulator, able to get a job to decide whether to use sensors with voltage regulator, to consider the operating voltage and system cost when selecting transmitter. 7, the need to have interchangeability of transmitters: to determine whether the required transmitter can accommodate multiple use systems. In general, pressure transmitter, which is very important. Especially for OEM product 3051 pressure transmitter, once the products to the customer, then the customer is used to calibrate spending is quite large. If the product has a good interchangeability, even if it is used to change the transmitter, it will not affect the effectiveness of the whole system. Diffused silicon pressure transmitter, pressure transmitter, Hua Hui science and technology provided by the Jinan-Technology Co., Ltd. Jinan Huahui Technology Co., Ltd. (www.cnhuahui.com/) strong, credible, in Jinan, Shandong pressure instrumentation industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead China-Technology into the brilliant and you work for a better future!