Pressure transmitters can be divided into gauge pressure, absolute pressure and negative pressure according to different ways of measuring pressure. Absolute pressure is absolute pressure, which refers to all the pressures in the space where the medium (liquid, gas, or vapor) is located, and the absolute pressure is relative to the zero pressure. Absolute pressure transmitter is a common type of pressure transmitter, and the zero position of absolute pressure transmitter is difficult to verify on site, only when the absolute pressure transmitter is lower than 4mA, can it be intuitively found that the pressure transmitter has zero drift. In the field where the absolute pressure transmitter is used, if there are no other instruments that can be directly compared, it is more difficult to find the zero drift of the absolute pressure transmitter in time, and regular maintenance and calibration are effective ways to find and solve the zero drift. Other types of pressure transmitters are the same as absolute pressure transmitters. After a period of use, regular inspections are required to ensure the accuracy of its on-site operation. For instrumentation, regular inspection and calibration are routine links in the use process. This is the only way to ensure long-term, stable and accurate measurement of the pressure transmitter. Star Meter Technology Co., Ltd. is a high-tech enterprise integrating R&D, production and sales. Specializing in the production of pressure transmitters, liquid level transmitters, temperature transmitters, temperature and humidity transmitters, differential pressure transmitters, soil moisture transmitters, 3051 transmitters and related instrumentation accessories. A number of products under the Xingyi brand have obtained a number of patent certificates issued by the state, such as CE certification, IS9001 certification, SGS certification, TüV SüD certification, explosion-proof certification, etc. If you have any questions about product consultation, product customization, agency, technical inquiry, quotation, etc., please contact Xingyi: 400-600-4496!