In many industrial environments, measuring pressure is essential for safety, efficiency, and performance. But not all conditions are the same. In sectors like aerospace, energy, chemical processing, and automotive testing, extreme heat is a constant factor. This is where high temperature pressure transmitters become critical. But what is a high temperature pressure transmitter, and why is it different from standard models?

At ESI Technology, we specialise in designing and manufacturing advanced pressure measurement solutions, including transmitters engineered for high temperature environments. In this article, we’ll explore what these devices are, how they work, and why ESI Technology is your trusted partner for high-performance pressure measurement in extreme conditions.

Understanding the Basics: What is a High Temperature Pressure Transmitter?

A high temperature pressure transmitter is a precision instrument designed to measure pressure in environments where temperatures exceed the capabilities of standard pressure sensors. These transmitters are engineered to deliver accurate, reliable data in conditions where conventional devices would degrade, malfunction, or fail.

Typical operating temperature ranges for standard transmitters might cap around 85°C to 125°C. However, in high temperature applications, pressures must be measured accurately even at temperatures that can exceed 200°C or more. This requires specific materials, design strategies, and compensation techniques to ensure long-term stability and performance.

Where Are High Temperature Pressure Transmitters Used?

High temperature pressure transmitters are used across a wide range of industries, particularly where heat is a by-product of essential processes. Key applications include:

• Aerospace and aviation – for monitoring pressures in jet engines or test facilities.

• Automotive testing – especially in engine development and exhaust systems.

• Oil and gas – within high-pressure, high-temperature (HPHT) wells.

• Power generation – including gas turbines and nuclear plants.

• Chemical and pharmaceutical processing – where heat and pressure must be tightly controlled for safety and efficiency.

Each of these industries requires precise and durable pressure measurement technology. At ESI Technology, we provide high temperature pressure transmitters that meet the demanding specifications of these environments.

How Do High Temperature Pressure Transmitters Work?

These transmitters function similarly to standard pressure sensors, converting pressure into an electrical signal. However, the real difference lies in how they manage heat:

1. Thermal Isolation – High temperature models are often designed with thermal isolators or cooling elements to prevent heat from reaching sensitive electronic components.

2. High-Temperature Materials – The materials used in both the sensor and housing are carefully selected for thermal durability. Stainless steel and other alloys are commonly used to withstand both pressure and temperature stress.

3. Advanced Electronics – Compensation algorithms and robust circuit design allow the transmitter to maintain accuracy even as ambient conditions fluctuate.

At ESI Technology, our proprietary design techniques and rigorous quality control ensure our high temperature transmitters meet international standards and exceed customer expectations.

What Sets ESI Technology Apart?

Now that we’ve answered the question “What is a High Temperature Pressure Transmitter?”, it’s important to understand why ESI Technology is the right partner for your pressure measurement needs.

• Over 30 Years of Expertise: We’ve been innovating pressure measurement solutions since our founding, with a dedicated focus on quality, accuracy, and durability.

• Custom Solutions: Many of our customers require application-specific adaptations. Our in-house engineering team can tailor high temperature transmitters to meet unique requirements.

• Made in the UK: All our products are proudly designed and manufactured in the UK, ensuring full control over quality and reliability.

• Robust Testing: Every transmitter is put through rigorous environmental, thermal, and pressure tests to ensure it performs where it matters most.

• Global Reach, Personal Service: We serve customers around the world while maintaining the personalised service and support you’d expect from a trusted, specialist manufacturer.

Choosing the Right High Temperature Pressure Transmitter

When selecting a high temperature pressure transmitter, it’s essential to consider:

• Operating temperature range

• Pressure range

• Media compatibility

• Required accuracy and stability

• Output signal type

• Environmental sealing (IP rating)

Our team at ESI Technology is here to help you navigate these requirements and find the right solution for your application.

Contact ESI Technology Today

High temperature environments demand more from your instrumentation. Don’t compromise on safety, reliability, or performance. If you’re looking for robust and accurate high temperature pressure transmitters, contact ESI Technology today. Our expert team is ready to help you specify the right product for your application — backed by decades of experience and a commitment to excellence.