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In industrial automation control systems, differential pressure transmitters and pressure transmitters are common pressure measurement equipment. Although they are both used to measure pressure, their working principles and application scenarios are different. This article will explore how to differentiate between differential pressure transmitters and pressure transmitters and describe their characteristics and applications.

1. Differential pressure transmitter:

Working principle: A differential pressure transmitter measures the pressure difference between two different locations and is often used to measure fluid flow rate, flow rate or liquid level. Features: It has two pressure interfaces and can measure the pressure difference between two points. It is suitable for flow measurement, liquid level control and other scenarios.

2. Pressure transmitter:

Working principle: A pressure transmitter measures the pressure at a single location and usually converts the pressure into a standard signal output. Features: There is only one pressure interface, suitable for single-point pressure measurement and control. It is often used for pipeline pressure monitoring, equipment pressure control, etc.

3. Related questions:

What is the main difference between differential pressure transmitter and pressure transmitter? A differential pressure transmitter measures the difference in pressure between two points, while a pressure transmitter measures the pressure at a single point. What scenarios are differential pressure transmitters and pressure transmitters suitable for? Differential pressure transmitters are suitable for measurement scenarios such as flow and liquid level, while pressure transmitters are suitable for single-point pressure monitoring and control. What is the difference between the installation locations of differential pressure transmitters and pressure transmitters? Differential pressure transmitters need to be installed at two different locations where the fluid flows, while pressure transmitters can be installed anywhere where pressure needs to be monitored.

Summary: Although differential pressure transmitters and pressure transmitters are both used for pressure measurement, their working principles, characteristics and application scenarios are different. Correct differentiation and selection of appropriate equipment are critical to achieving accurate pressure monitoring and control.