Maintenance and Common Problems of the Differential Pressure Transmitter

The differential pressure transducer is a commonly used instrument for measuring water levels. It can calculate the height of the water level by measuring; the pressure difference between two different water heights. Due to the influence of various external factors, dp level transmitters may have various problems during use. If the differential pressure transmitter has problems, it will affect the accuracy of the measurement results. Therefore, it is necessary to maintain the dp transmitter.

1. Dp pressure transmitter maintenance.

Clean the housing and sensor of the dp level transmitter regularly. Gently wipe the dp transmitter with a clean cloth or cotton swab, do not use chemicals or organic solvents. Periodically calibrate the water level dp level transmitter to ensure the accuracy of its measurements. Calibration of the differential pressure transmitter should be performed in a stable environment, such as a room with no wind and little temperature variation. Differential pressure transmitters should avoid mechanical shock or vibration. When installing the water level dp level transmitter, it must be waterproof and moisture-proof.

One of the problems that often occurs with dp transmitters is a relatively large deviation in the measurement value of the dp transmitter. This is mainly due to damaged or aging sensors, improper installation, unstable measurement environment, poor cable connection, or interference.

Dp pressure transmitters generally have a longer life. However, if the dp pressure transmitter is damaged or aging, it is necessary to replace or clean the dp pressure transmitter in time.

The installation position of the dp level transmitter will affect the accuracy of the measurement results. For example, when measuring the water level, the differential pressure transducer should be installed at the upper and lower ends of the water level measurement point. At the same time, the differential pressure transducer should avoid being installed in places with a large flow of water to avoid affecting the measurement accuracy. In addition, the installation height of the differential pressure transmitter should be kept relatively stable, so as not to be affected by temperature vibration and other factors affecting the measurement results of the differential pressure transducer.

The output signal of the dp transmitter is generally a standard signal, such as 4-20mA, 0-5V, and so on. These signals can be received by PLC, DCS, and other controllers, and then carry out data processing and control operations.

In summary, the dp transmitter has a high application value in water level measurement. At the same time, it should pay attention to the installation position and method of the dp transmitter.