Pressure Transducers

Pressure Transducers

Measuring the accurate pressure of any substance, fluid, or gas in a closed chamber or equipment is a crucial part of several industrial processes. A pressure transducer is a pressure measuring device often used to measure fluid pressure in a system or application such as water treatment. Obtaining correct and meaningful data is crucial for the proper functioning of the system, getting accurate output, as well as deciding further steps. Hence, the pressure monitoring device is an essential part of many processes to keep the system pressure in check that also helps keep the workers and equipment safe. This is where the pressure transducers make a significant difference. Pressure transducers, popularly called pressure transmitters, are designed to measure the pressure of liquids and gases used in process industries. Pressure transducers have evolved over the years with a wide range of features and technological advancements.

As one of the leading suppliers of pressure instruments, Cannon Water Technology offers superior quality pressure transducers for commercial and industrial applications. We offer these systems based on the application requirement. Also, they can be used as standalone devices or integrated with industrial systems.

Working Principle of Pressure Transducers

The sensor of a pressure transducer forms its core, and is mostly made of piezoresistive materials, which responds to the changes in pressure in a system. There is a diaphragm which is a pressure-sensitive element that deflects because of the changes in fluid pressure. The transducer sensor senses this deflection which helps measure pressure and convert into electrical signals. They are powered with electricity to produce these signals.

Types of Pressure Transducer

We offer pressure transducers that can measure absolute as well as relative pressure. While we offer pressure transducers in various configurations, here are some of their types based on measurement method.

  • Digital pressure transducers: This is a field programmable pressure transducer with a 360-degree LED readout display which can also be locked in one location. There are multiple sensing elements; hence if one fails, the other one can function. They offer accuracy in high-pressure applications. While these are digital devices, they have an optional analog output. Some of these models may be submersible in the fluid and offer output via Bluetooth. All of these transducers have an IP67 or IP68 rating.
  • Piezoelectric pressure transducers: This is made of piezoelectric resistive materials such as ceramic to create an electric charge in case it senses changes due to applied pressure in the fluid. This is measured in volts and directly proportional to the pressure change. These are extremely sensitive and accurate transducers that also have a fast response time.
  • Inductive pressure transducers: These transducers work based on the principle of electromagnetic induction. The diaphragm connected to the magnetic core deflects in cases it senses pressure change. This deflection produces current that is converted into electric signal.

How to Calibrate Pressure Transducers?

It is essential that a transducer converts the pressure changes into electrical signals and offer accurate output. The primary element is the sensor which sense changes and produce the signal. A transducer, which is the secondary element, processes this signal, characterizes it in linear format, and transmits in the regular analog mA format which is displayed on the screen. Calibration is an important aspect from an accuracy point of view. It is also useful to match the accuracy level required for your application. Here are the steps to calibrate an industrial pressure transducer.

  • First, check the calibration certificate and the pressure standard meets the industry regulation as well as application requirements. Also, check the manufacturer’s guidelines for the same.
  • Now, connect the pressure sensor to an electrical power source. Connect the input of the transducer to the output of the pressure pump of the fluid treatment system using an appropriate connector.
  • Select the type of pressure measurement such as differential, absolute, and so on.
  • Ensure all the connections are secure and the temperatures on both sides are same and controlled as it may hamper accuracy.
  • Apply pressure within the required range and allow the pressure value to stabilize as it may fluctuate initially.
  • Use a data acquisition software to record the output after the pressure is applied on the system.
  • Record at least three readings to check linearity and get an accurate output.
  • Compare the pressure readings to the known applied pressure standards in the application.
  • If required, make adjustments and recheck the values. Ensure the values are in the acceptable or required range.
  • Document all of these details for future references.

Factors to Consider While Selecting Industrial Pressure Transducer

Here are some factors you must consider when choosing a pressure transducer for your industrial application.

  • Pressure range: Choose the pressure range according to your application requirements. The standard maximum pressure limits in most of or models are up to 5000 or 10,000psi. However, if your application requires a small range, do not select one with a very wide pressure range as it will directly hamper the accuracy. Choose a transducer which will enable an accuracy rate from +/– 0.1 or 0.5 depending on your requirement.
  • Materials used: Our transducers are made from PVC, polycarbonate, and so on. These are resistant to extreme temperatures and pressures.
  • Housing and sealing materials: The housing and sealing materials must be able to withstand harsh industrial environments. Most of our housings or enclosures are made from premium quality stainless steel and hence offers resistance to corrosion and rust. It protects the sensitive elements in the transducer from shock and vibration. All of these are necessary features in any housing material.
  • Temperature range: Choose the temperature range according to your operating environment. Our transducers are robust and made of polycarbonate with a stainless steel enclosure in most cases. Hence, they are suitable for high temperature applications and can withstand a wide temperature range from -10 to 60 degrees Celsius.
  • Repeatability: The transducer must be able to produce similar output in those specific pressure ranges at all times. This repeatability factor goes a long way in getting accurate outputs.
  • Certifications and IP ratings: Most of our transducers have an IP67 or 68 rating. This ensures their capability for harsh environments. Certifications offer credibility. In fact, these are mandatory in certain industrial applications.

Beneficial Feature of Pressure Transducers Available at Cannon Water Technology

Our pressure transducers assure reliable and precise pressure measurement in several challenging environments. They have gained immense popularity and easy acceptance owing to their following features.

  • Our pressure transducers are well-known for offering unmatched precision, stability, and resolution.
  • They provide safe and reliable performance in harsh and challenging industrial environments. 
  • These pressure transmitters are engineered using high-quality material that can withstand high and low temperatures, humidity, and other process and environmental parameters. This makes them durable and increases their life span.
  • They can withstand a wide pressure range without rupturing the internal elements and compromising accuracy.
  • They feature a local operator interface (LOI) with an in-built configuration button and easily understand menus, making them easy to use.
  • They come in a compact and lightweight design, allowing their easy installation in different applications.
  • Our pressure transmitters are easy to maintain.
  • These pressure transmitters are almost always in-stock for quick shipment.

Industrial Applications of Pressure Transducers

Our pressure transducers find applications across industries that demand precise pressure handling. Here are some of the important application areas where these systems are used. So, let’s take a look at them.

We, at Cannon Water Technology, have gained immense experience serving clients across industries. Our pressure transducers for sale are designed to assure precision in measurements. Choosing the right pressure transducers is of utmost important to get the desired results. Our vast years of market presence and in-depth understanding of industrial requirements enable us to assist our clients in choosing the right pressure transducer for their applications. We stock a large inventory of pressure transmitters. Are you intrigued to know more about our pressure transducers? If yes, feel free to contact our team today. Our highly skilled and experienced experts would clear all your doubts.


  • What are the advantages of using pressure transducers?

Pressure transducers offer several advantages, including high accuracy, fast response time, wide measurement range, compatibility with various media (liquids or gases), and the ability to provide electrical output for easy integration with data acquisition systems and control devices.

  • What are the pressure ranges that pressure transducers can measure?

Pressure transducers are available in a wide range of pressure measurement capabilities. The pressure ranges can vary from very low pressures (such as vacuum or a few millibars) to very high pressures (such as several thousand bars or more), depending on the specific transducer model and its design.

  • Can pressure transducers be used with different media?

Yes, pressure transducers can be used with various media, including liquids and gases, depending on the transducer's design and compatibility. It is important to select a transducer that is compatible with the specific media being measured to ensure accurate and reliable readings.

  • Are pressure transducers easy to install and integrate into systems?

Pressure transducers are designed to be relatively easy to install and integrate into systems. They often feature standard electrical connections, such as voltage or current outputs, that can be easily connected to data acquisition systems, controllers, or other devices.

  • Do pressure transducers require calibration?

Yes, like most measurement devices, pressure transducers require periodic calibration to maintain their accuracy. Calibration involves comparing the transducer's readings against a known reference or standard and making any necessary adjustments to ensure accurate measurements.

  • What is the accuracy level of a pressure transducer?

The accuracy of a pressure transducer differs on the type and features of the transducer. Some transducers are specifically designed for applications that require tight tolerances and offer accuracies ranging from 0.1% to 0.01%.

  • What is the operating temperature range of pressure transducers?

Most transducers have a wide operating temperature range from -10°C to 150°C or more. They are designed to be rugged and withstand harsh industrial environments.

  • Can pressure transducers be used in corrosive environments?

Yes, our pressure transducers are made of thermally resistant PVC or polycarbonate with a steel enclosure. This makes them resistant to corrosion, moisture, and so on. Also, they are at times coated with materials that resist corrosion.

  • What is the lifespan of a pressure transducer?

The operating life of a pressure transducer depends on factors such as its materials used, operating environment and continuous exposure to harsh conditions, calibration and maintenance schedules, and more. Generally, our transducers can have a lifespan of 10 years and beyond if maintained well.

  • Are there any safety precautions when using industrial pressure transducers?

Yes, operators must follow safety guidelines given by the manufacturer when installing and using industrial pressure transducers. The fittings and connections must be tight and secure. Most important, the industrial pressure transducers must be used within their specified operating conditions to prevent accidents and damage.