Which is the High side and low side of differential pressure transmitter?

In a differential pressure transmitter, the high side (H) refers to the port connected to the higher pressure side of the system, while the low side (L) connects to the lower pressure side. The transmitter measures the difference between these two pressures and outputs a signal proportional to that differential. This information is crucial for applications like flow measurement, level measurement, and pressure monitoring in various industrial processes. Proper identification of high and low sides is essential for accurate readings and system performance.