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How to Select Pressure Transmitter for Your Application?

May 26, 2020

A pressure transmitter is a device that converts pressure into the analog signal. As the technology is developing, the transmitters are getting smarter, day by day. Therefore, the application of pressure transmitters is getting extravagant and its selection is being difficult. Since the pressure transmitters are mainly used for industrial processes, selecting a pressure transmitter becomes a complex process. It requires consideration of specific and critical industrial factors that not everyone can do without proper knowledge. Therefore, this post sheds light on factors to consider while selecting pressure transmitters.

A Few Important Factors to Consider While Choosing a Pressure Transmitter

Pressure transmitters are now supported by wireless technologies. This makes these devices applicable to the critical operations which were hardly possible before. They are now used as pressure sensors at engine test setups, for preventive maintenance in high-pressure fluid lines, in pharmaceutical industries, and even in mining industries. Therefore, being a performance-centered device, the pressure transmitters are to be chosen with caution. The factors that are required to consider while the selection is detailed as follows.

Pressure Conditions:

Since it is a pressure transmitter, it is used to sense the pressure and pressure fluctuation in the process. Therefore, while selecting a pressure transmitter, all possible pressure conditions must be addressed.

Operating Pressure:

The pressure transmitters are designed for a specific range of operating pressure. The operating pressure varies in differing applications. Therefore, the pressure transmitter must be selected within a suitable operational pressure range.

Extreme Maximum and Minimum Pressure:

In applications like testing gas leakage or water leakage through pipes, the pressure may suddenly drop or rise. In such cases, the operator must be aware of the highest and lowest pressure spikes that may occur during the operation. Low pressure may hamper the accuracy of the device whereas the high pressure may cause device damage. The selected pressure transmitter must be capable of handling both conditions, otherwise serious device damage might lead to accidents.

how to choose pressure transmitter

Process connectivity:

Pressure transmitters are often used in integrated systems. This means they are mounted on different components like orifice plates, pressure tanks, pipeline inlet or outlets, etc. Therefore, depending on versatility on connection, there are various types of mountings available. The selection of transmitters must compliment the mounting or type of connectivity. The following are a few important ones:

Inline Mounting:

When the pressure transmitters are connected directly in a single connection at the measuring end of the pipe, they are known as inline pressure transmitters. These transmitters are suitable for operations where direct pressure measurements are expected.

Coplanar Mounting:

This type of connection is made for differential pressure sensing. It is called a coplanar pressure transmitter and can be selected for operations where absolute or differential pressure measurements are expected.

Bi-planar Mounting:

In this bi-planar mounting, the bi-planar pressure transmitters are connected with two ports in the measurement line.

Remote Seals:

Most times, the pressure sensors are integrated with various types of mechanical components, which may expose them to oil, chemicals, temperature, corrosion, etc. Therefore, if the pressure sensors are being integrated into the impulse lines then there is one solution called remote seals. These remote seals can protect the transmitters from damage or reducing accuracy, as they help to isolate the sensing elements from damaging media. These can offer easy cleaning options to enhance the performance of the setup. Therefore, while selecting pressure transmitters, the devices with remote seals should be selected.

Operational Considerations:

The environment where the pressure transmitter is being operated should be considered in the selection process. The following are the environmental or operational considerations that are important for selection.

Now that you are guided with a selection of pressure transmitters, there is the last guideline is to purchase it from a trusted supplier. The Transmitter Shop (TTS) provides premium quality pressure transmitters that may fit all your selection needs. They allow customers to choose from new, surplus, and reconditioned transmitters.

  • The pressure transmitter must be selected with a remote seal that can handle the high temperature. In applications like fluid pressure measurement, the temperature may rise beyond considerations.
  • Mechanical vibrations are to be considered while selecting a transmitter. If a transmitter is to be installed, it should be installed at a low vibration, low fluctuation conditions
  • Pressure pulse fluctuation can damage the sensor, therefore, a transmitter must be chosen by considering its compatibility with pulsation damper
  • If required to use in hazardous areas, the pressure transmitter must be ATEX, CSA, FM, and IECEx approved.


Now that you are guided with a selection of pressure transmitters, there is the last guideline is to purchase it from a trusted supplier. The Transmitter Shop (TTS) provides premium quality pressure transmitters that may fit all your selection needs. They allow customers to choose from new, surplus, and reconditioned transmitters.

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