How can the output signal of the Differential Presssuere Transmitter be read by a control system or recorder and further used for calculation and control of flow, level or concentration?
Publish Time: 2024-04-19
Differential Presssuere Transmitter plays a vital role in industrial automation control systems. After its output signal is read by the control system or recorder, it can achieve precise calculation and control of flow, liquid level or concentration.
Differential Presssuere Transmitter measures the pressure difference at two different points and converts it into an electrical signal output. This electrical signal can be an analog or digital signal, depending on the type and configuration of the transmitter. When an output signal is generated, it is captured by a control system or recorder.
The control system or recorder has a built-in corresponding interface circuit for receiving the electrical signal output by the Differential Presssuere Transmitter. These interface circuits can amplify, filter and linearize electrical signals to ensure signal accuracy and stability. Once the signal has been processed, it is fed into the control system or the core processing unit of the recorder.
In a control system or recorder, a core processing unit performs calculations and analyzes based on the received differential pressure signal. For flow measurement, the control system uses the differential pressure signal and the known flow formula to calculate the flow rate of the fluid. For liquid level measurement, the liquid level height is calculated through the corresponding relationship between the differential pressure signal and the liquid level height. Similarly, for concentration measurement, the control system will calculate the concentration value based on the relationship between the differential pressure signal and the substance concentration.
Based on these calculation results, the control system can further execute the corresponding control strategy. For example, when the liquid level is too high, the control system can automatically open the discharge valve and reduce the liquid level; when the flow rate is insufficient, the opening of the pump or valve can be adjusted to increase the flow rate. These control actions ensure the stability and efficiency of the industrial automation process.
In summary, the output signal of the Differential Presssuere Transmitter is read and processed by the control system or recorder to achieve precise calculation and control of flow, liquid level or concentration, providing strong support for industrial automation.
