There may be some special situations during the installation and debugging of pressure transmitters. Today we will analyze the factors that cause incorrect indications during the use of pressure transmitters: 1. Is the power supply of the pressure transmitter normal. If the power supply of the pressure transmitter is less than 7.5VDC, it should be checked whether there is a large load in the circuit. The input impedance of the transmitter load should meet RL ≤ (transmitter supply voltage -7.5V)/(0.02A) Ω. The unstable power supply can easily cause incorrect indication of the pressure transmitter. 2. Is the casing of the pressure transmitter effectively and truly grounded. The shell of the pressure transmitter is effectively grounded and has good anti-interference effect, which is the guarantee of stable indication of the pressure transmitter. 3. Confirm whether the pressure transmitter is wired separately from the AC power supply and other power sources. 4. Whether there are sand, impurities, etc. blocking the pipeline in the pressure transmitter’s pressure pipe, which can affect the measurement accuracy; It is necessary to clean impurities and add a filter screen in front of the pressure interface. 5. Check if the pipeline temperature of the pressure transmitter is too high. The operating temperature of the pressure transmitter is -40~85 ℃, but it is best to use it within -20~70 ℃. And add a buffer tube to the pressure transmitter for heat dissipation. It is best to add some cold water to the buffer tube before using the pressure transmitter to prevent overheating steam from directly impacting the pressure transmitter, ensuring its service life. 6. Finally, we also need to confirm whether the pressure transmitter itself is damaged, such as severe overload, which can cause damage to the isolation diaphragm of the pressure transmitter. Directly causing the incorrect indication of the pressure transmitter or the inability to display pressure at all. If you have any questions regarding product consultation, product customization, agency, technical inquiries, quotations, etc., please contact Xingyi at 400-600-4496!