A wide range of industrial applications uses pressure sensors. Pressure sensors are integral for smooth functioning, whether hydraulics or pneumatics, pumps and compressors, air conditioning and refrigeration systems or plant engineering and automation. They ensure the system pressures are within acceptable ranges and ensure the operational reliability of the applications. Depending on the installation and system requirements, you can opt for an analog or digital pressure sensor.

Uses of Pressure Sensors

Pressure sensors have many uses. They are used in common, everyday objects and sophisticated specialist objects. Most of the pressure sensors can be tailored to suit your requirements. Pressure sensors are used mainly in the following fields:

• Vacuum systems
• High-temperature environments
• Chemical applications
• ATEX Certified areas
• SIL Rated requirements

Pressure Switches

Pressure switches come with either one port or two ports. The switches with a single port are known as static or gauge pressure switches, and those with two ports are called differential pressure switches. Regardless of the number of ports, the pressure switches are known for their quick response time and long life. Furthermore, the switches are usually small in size, and the costs are also low. Most pressure switches come with standard port and mounting options.

Here are some of the commonly used pressure switches which you come across in everyday life.

• Alarm systems on HVAC in the boiler room
• Oxygen monitoring levels within pressure tanks used in the medical industry
• Water levels in common household appliances such as dishwashers and washing machines
• Liquid dispensing in vending machines
• Medical Breathing apparatus
• Detection of block filters in fans and other extraction units

Pressure Transducers

Pressure transducers are slightly more complicated systems than pressure switches. They are somewhat costlier than pressure switches, but as they are more robust and more rigid, they can withstand harsh environments such as temperature, water, and dirt. This characteristic makes them suitable for even more industrial applications such as applications on vehicles. They come with excellent accuracy and higher strength.

Pressure transducers without the internal O rings offer higher accuracy and longer life. Some pressure sensors also offer combined pressure and temperature sensors, especially for applications where there are space restrictions.

Pressure transducers are used for a variety of applications such as:

• Breaking applications on length railway vehicles
• Motorsport applications that include brake, oil, fuel, and MAP
• Industrial gauge and vacuum pressure measurement systems
• Refrigeration systems
• Robotics and automation
• Off-road construction applications
• Agricultural applications

Advantages of using a Pressure sensor system

Analog pressure sensors are simple to use and easy to set up. Using an analog sensor coupled with an analog to digital converter is possible if you need a digital pressure sensor. As digital sensors need specific protocols to communicate with devices, this could be a good alternative. However, if the system needs fast, active feedback control loops, a pure analog pressure sensor is ideal. But if your systems don’t need a quicker response time, a digital pressure sensor can be the best option. It can make networking with multiple digital devices easier and make the system future-ready.

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