The differential pressure transmitter is used to prevent the medium in the pipe from directly entering the transmitter, and the pressure sensitive diaphragm and the transmitter are connected by a capillary filled with fluid. It is used to measure the level, flow and pressure of a liquid, gas or vapor and then convert it to a 4-20 mADC signal output.
    The differential pressure transmitter is also a pressure measuring instrument. Therefore, the installation of the differential pressure transmitter should follow the installation principle of the general pressure measuring instrument. However, the differential pressure transmitter and the pressure tap must be connected through the pressure guiding pipe. The measured pressure can be correctly transmitted to the positive and negative pressure chamber of the transmitter. If the pressure port is not properly selected, the pressure guiding tube is not installed correctly, or the pressure guiding tube is blocked or leaked, or the differential pressure transmitter is Improper installation and operation can cause large measurement errors. Therefore, some principles should be respected during installation: (1) The choice of pressure port. The choice of the pressure tap has a lot to do with the characteristics of the measured medium. Different media should be determined according to different situations. When the measured medium is liquid, the pressure tap should be located in the range of 0°-45° between the lower part of the pipeline and the horizontal line of the pipeline; when the measured medium is gas, the pressure tap should be located on the vertical centerline of the pipe and the vertical center of the pipeline. In the range of 0°-45°; when the measured medium is steam, the pressure tap should be located in the range of 0°-45° between the upper part of the pipe and the horizontal line of the pipe; (2) Installation of the pressure guiding pipe. The guiding guide should be laid short distance according to zui. The choice of the inner diameter of the pressure guiding pipe is related to the length of the pressure guiding pipe. The piping of the pressure guiding pipe should be vertical or not less than 1:10 between the horizontal line. If necessary, install gas, condensate, particulate collector, etc. and regularly collect the collected materials. When measuring liquid medium, there should be an exhaust device in the pipeline of the pressure guiding conduit, if the differential pressure transmitter can only be installed above the sampling port; when measuring the gaseous medium, if the differential pressure transmitter can only Installed under the sampling port. The liquid storage tank and the discharge valve must be installed to overcome the influence of the retentate on the accuracy of the altar; the installation of the differential pressure transmitter. Before the pressure guiding pipe is connected to the differential pressure gauge or the transmitter, the shut-off valve and the balancing valve must be installed to form three groups.
    Huajiang Automation can provide you with zui professional differential pressure transmitter selection recommendations and Zui reliable differential pressure transmitter products. If you have any questions, please call us. We will have professional technicians to help you answer them. We hope to bring them to you. You help!
Paddy Sprayer,Farmland Sprayer,Farmland Rice Sprayer,Agricultural Rice Sprayer
Taizhou Yingtian Agricultural Machinery Manufacturing Co., Ltd. , https://www.sakuradaagc.com