Types & Purpose of Pressure Transmitter

anany joshi
3 min readJun 23, 2023


The term “pressure transmitter” refers to a pressure sensor instrument that is widely used in industrial and automotive applications that helps detect pressure in fluids, gases, and liquids. They use various techniques to assess the pressure in the equipment to warn about potential disaster circumstances in advance.

A spherical gauge with several colored stripes displays the various pressure levels. These monitor heights, depth, pressure loss, and water flow in conjunction with other equipment to stop leaks in the industrial system.

Purpose of Pressure Transmitter

Numerous industrial applications frequently employ pressure transmitters. Pressure transducers are commonly used in oil exploration and offshore drilling to monitor the differences in numbers between the outside and inside of pressure-sensitive equipment.

Certain metrics must be maintained to guarantee that the gathering and drilling procedure is carried out to ethical and effective standards. The same holds true for onshore petrochemical, gas, and chemical plants. They thereby drastically lower maintenance expenses.

Pressure transmitters can be coupled to other systems, including electrical circuits, making them useful for a variety of applications. Thus, the pressure transmitter market will generate revenue of $4,168.7 million by 2030.

In order to preserve the best possible product condition, many industries utilize pressure-sensitive storage and transport equipment. This equipment must be precisely monitored to ensure safe delivery and ultimate application. Pressure transducers are also used in laboratories to gauge the pressure of the atmosphere in a vacuum chamber, facilitating a wide variety of new research.

Types of Pressure Transmitters

There are four basic categories for pressure transmitters:

• Gauge Pressure Transmitter

As the name implies, they gauge pressure and compare it to air pressure. Due to the utilization of liquid and gas, these transmitters are frequently utilized in process industries. Gauge pressure transmitters are an essential part of the business since they need to maintain their pressure under control.

• Absolute Transmitters

The pressure in relation to a complete vacuum is measured using these transmitters. In essence, a sealed chamber is used to house the measured medium to generate a reference to an absolute vacuum. Such absolute pressure transmitters are often used in applications requiring a very high degree of precision.

• Accuracy of Pressure Transmitters

Pressure transmitters now have a significantly higher degree of precision. A device’s accuracy depends on a number of factors, including hysteresis, linearity, and repeatability. Regardless of the kind of equipment and application, these are the top three characteristics of every pressure transmitter. The makers frequently group all of these factors together and display them as a single number.

• Differential-Pressure Transmitter

These transmitters are often used to compare various pressure kinds. Both level applications and flow applications are applicable to them. Due to their benefits over competing devices, such transmitters have been employed to monitor flow rates.

• Multivariable Pressure Transmitters

When there are several variables involved, these transmitters are employed. Among other things, these factors may include temperature and volumetric flow. These transmitters are frequently employed in businesses that measure steam and gas flow.