The impulse tube connected to the measuring medium transmits the pressure from the pressure port to the transmitter. If the connection is not done properly, the following errors may be caused in the pressure transmission: 1. Leakage. 2. Friction loss. 3. Gas accumulation in liquid pipelines (head error). 4. Accumulation of liquid in gas pipelines (pressure head error). 5. The density change caused by the temperature difference between the two impulse tubes (head error). How to avoid or reduce the occurrence of transmitter errors, the following will introduce the solution to this problem: 1. First of all, the impulse tube of the transmitter should be as short as possible. 2. For liquid or steam measurement, the impulse pipeline should be connected upward to the process pipeline, and its inclination should not be less than 1/12. 3. When measuring gas in the transmitter, the impulse tube should be connected downward, and the inclination should not be less than 1/12. 4. The measuring point of the liquid process pipeline should be lower, and the gas pipeline point should be higher. 5. The two impulse tubes of the transmitter should be kept at the same temperature. 6. In order to avoid the influence of friction, the diameter of the impulse tube should be large enough. 7. Ensure that all the gas of the transmitter can be discharged from the liquid impulse tube. 8. When using the isolation liquid, the liquid level of the two impulse tubes should be the same. 9. When the injection system is used, the injection system should be as close as possible to the pressure intake of the process pipeline. The purified fluid passes through the same size and length of the pipe to the transmitter, and the injection fluid should be avoided from passing through the transmitter. 10. Ensure that the impulse tube of the transmitter has sufficient strength to resist the rated working pressure. If you have any questions about product consultation, product customization, agency, technical inquiry, quotation, etc., please contact Xingyi: 400-600-4496!