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 and refers to all the pressures in the space in which the medium (liquid, gas, or vapor) is located. Absolute pressure is relative to zero pressure. Absolute pressure transmitters are a common type of pressure transmitter. However, it is difficult to verify the zero position of the absolute pressure transmitter in the field. Only when the absolute pressure transmitter in the field is less 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. Star Meter Manufacturing Co., Ltd. provides free calibration services for zero drift and full-scale drift. After the zero point adjustment of the absolute pressure transmitter, the pressure transmitter is reinstalled back to the site, and it can continue to be used normally to meet the detection function of working conditions. 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. If you have any questions about product consultation, product customization, agency, technical inquiry, quotation, etc., please contact Xingyi: 400-600-4496!