High-temperature pressure sensors

High-temperature pressure sensors are specifically designed to measure pressure in high-temperature environments.

Advantages of high-temperature pressure sensors from DDM

• High precision measurement
• Durable and robust design
• Customizable options

In our practical guide to high-temperature pressure sensors, you will find many more details on selection criteria and properties, areas of application, measurement accuracy and delivery times

Our pressure sensors at a glance

Below you will find an overview of our various high-temperature pressure sensors, arranged according to their temperature ranges. For detailed information on the individual models, please click on the corresponding pressure sensor.

0 bis 50°C

-20 bis 80°C

-40 bis 125°C

-40 bis 180°C

Customized Temperature Ranges Available

For demanding applications, we also develop customized pressure sensors that are specially configured to your requirements. Our team will be happy to provide you with comprehensive and individual advice and looks forward to your task.

DDM practical guide on the subject of high-temperature pressure sensors

Basic data for high-temperature pressure sensors

The high-temperature pressure sensors from DDM Sensor Solutions offer a range of features that make them ideal for use in particularly demanding applications.

• Compact design available from 10 mm diameter, suitable for various installation spaces.
• Supports relative, absolute, and differential pressure measurement for versatile applications.
• Operates across a broad temperature range: Standard models from -40 to 150°C, extended versions up to 180°C, and specialized variants down to -56°C.
• Measurement ranges from 0 to 250 bar, with custom intermediate values available.
• Variable output signal: The sensors provide various output signals, including 0.5 to 4.5 V, 0 to 5 V, 1 to 6 V and 0 to 10 V DC.
• Pressure connections: DDM Sensor Solutions offers all standard pressure connections as well as customized pressure connections.
• IP67-rated for dust and water resistance, ensuring reliable performance in harsh environments.

Measuring accuracy of the high-temperature pressure sensors

Measurement accuracy is defined by the total error, accounting for temperature-induced deviations, non-linearity, and zero-point drift.

It takes the following factors into account:

• Non-linearity
• Hysteresis
• Adjustment tolerance of zero point and final value
• Temperature influences on zero point and span

The sensors are offered with various total error options:

• ≤ 1% v.MB
• ≤ 0.5% v.MB
• ≤ 0.25% of MB

To ensure high measurement accuracy over the entire temperature range, DDM Sensor Solutions uses an active compensation method: a temperature measuring point integrated in the pressure sensor permanently supplies a temperature signal. The pressure sensor is calibrated at different temperatures according to the desired temperature range. The measured values obtained (pressure signal and temperature signal) are implemented in algorithms to correct the measurements in real time. This type of temperature compensation achieves a low overall error of up to +/-0.25% FS over the working temperature range.

Applications of High-Temperature Pressure Sensors

These sensors are widely used in industries requiring precision measurement under extreme conditions, including:

Mobile applications

• Road testing and development
• Tanks and military equipment
• Aerospace technology

Applications with high heat generation

• Brake development
• Transmission technology
• Engine development
• Chemical processes
• Process technology

Further applications

• Sterilization processes in autoclaves
• Hydraulic pressure measurement on working machines
• Gas volume measurement
• Filter monitoring
• Vacuum packaging technology

High-temperature pressure sensors for individual requirements

DDM Sensor Solutions specializes in the development and production of customer-specific pressure sensors. Almost all properties of the pressure sensors can be adapted to the customer’s individual requirements. These includes

• Measuring range: Adaptation of the measuring range to the specific application
• Temperature range: Selection of the optimum temperature range for using the sensor
• Output signal: Configuration of the output signal according to customer requirements
• Pressure connection: Integration of the appropriate pressure connection for the respective application
• Materials: Selection of suitable materials for the wetted area and the housing

Delivery times for DDM high temperature pressure sensors

Once we have received your order, we will deliver the pressure sensors to the specified address within 3 to 4 weeks. The delivery time for stock items is due to our high quality standards and the complex manufacturing process. This consists of the following steps:

1. Welding and leak test: The pressure connection is welded to the pressure measuring cell and then tested for leaks using helium.
2. Ageing: The pressure sensor core is aged cyclically for 72 hours over the entire operating temperature range to improve long-term stability.
3. Assembly and programming: The pressure sensor is fully assembled and programmed.
4. Temperature compensation: The pressure sensor is calibrated in a calibrator over the entire temperature range in a climatic chamber. This process takes approx. 24 hours.

The delivery time for customized sensors is usually 6 to 8 weeks. The delivery time may be longer for more complex customizations.

Get Expert Consultation on High-Temperature Pressure Sensors Today!

Are you looking for the optimum high-temperature pressure sensor for your application? We offer you comprehensive advice and support you in selecting the right sensor. Our team looks forward to your inquiries and tasks.