Relative Pressure Sensors

Relative pressure sensors from DDM Sensors are designed for applications with limited installation space, clear interfaces, and stable signal quality. The PV25, PX25, PV22, PV22H, PV22 TEDS, PV15H, and PV10 product lines cover compact OEM systems as well as industrial measurement tasks with defined pressure ranges, matching process connections, and application-specific output signals.

Overview of Our Relative Pressure Sensors

DDM Sensors develops miniaturized relative pressure sensors for compact assemblies where the measurement range, connection geometry, and electrical interface must match precisely. Depending on the series, various pressure ranges, temperature windows, output signals, and process connections are available. This allows the sensors to be targetedly integrated into OEM architectures, test benches, pneumatic systems, and mobile applications.

Precise Relative Pressure Measurement in Minimum Space

Key advantages of our relative pressure sensors:

• Miniaturized designs for tight installation situations and OEM integration
• Wide selection of relative pressure ranges for various system pressures
• Analog output signals for direct processing in control units and evaluation systems
• Multiple process connections for mechanical integration into compact assemblies
• Engineered for industrial applications with stable measurement values and reproducible signal transmission

Technical Specifications and Product Features

Technical Specifications at a Glance

Series / Product	Pressure Range	Temperature Range	Output Signals	Process Connections
PV10	0 to 10 bar to 0 to 1000 bar	−40 °C to +150 °C −40 °C to +180 °C	0.5 to 4.5 V	M5x0.8, M6x1, M10x1
PV15H	(−1) 0 to 2 bar to (−1) 0 to 250 bar, custom intermediate ranges	−40 °C to +150 °C	0.5 to 4.5 V	M6x1, M8x1, M10x1
PV22	100 mbar to 250 bar, custom intermediate ranges	−40 °C to +125 °C	0 to 5 V, 1 to 6 V	M10x1, M14x1.5, 7/16-20 UNF, G1/4 male, Rectus 21, custom
PV22H	100 mbar to 250 bar, custom intermediate ranges	−40 °C to +150 °C	0 to 5 V, 1 to 6 V	M10x1, M14x1.5, 7/16-20 UNF, G1/4 male, Rectus 21, custom
PV22 TEDS	100 mbar to 250 bar, custom intermediate ranges	−40 °C to +125 °C	0 to 5 V, 1 to 6 V	M10x1, M14x1.5, 7/16-20 UNF, G1/4 male, Rectus 21, custom
PV25	100 mbar to 250 bar, custom intermediate ranges	−20 °C to +80 °C (0 °C to +60 °C)	0 to 10 V	G1/4” male, G1/4” female
PX25	100 mbar to 250 bar, custom intermediate ranges	−20 °C to +80 °C (0 °C to +60 °C)	4 to 20 mA	G1/4” male, G1/4” female

Total Error and Measurement Accuracy

The Total Error Band (TEB) of a relative pressure sensor includes non-linearity, hysteresis, zero point and full-scale offset tolerances, and temperature effects. For machine design, this value is highly relevant as it reflects the real-world measurement deviation across the specified operating range.

Compact Dimensions

The series are optimized for integration into OEM systems where sensors, connection geometries, and cable outlets must fit into confined spaces. The exact dimensions are product- and variant-specific, starting from a diameter of 10 mm and a length of 15 mm. Relevant datasheets apply for specific installation guidelines. Miniaturization reduces mechanical complexity in valve manifolds, test rigs, mobile units, and compact measurement modules.

Applications and System Integration

Field of Application and Industry Focus

Relative pressure sensors from DDM Sensors are used in industrial automation, medical technology, HVAC, test and measurement, as well as aerospace applications. Typical uses include pneumatics, robotics, compact machine modules, and plants with limited spatial freedom. Depending on the model, these sensors are also suited for demanding environments requiring stable relative pressure measurement and clean electrical connection.

Material and Media Compatibility

On the process side, the relative pressure sensors are seal-free and laser-welded. All wetted components are manufactured from 316L stainless steel, providing high resistance to a wide range of media and chemicals. By eliminating process seals, potential limitations caused by elastomer aging or chemical degradation are avoided.

Certifications and Protection Classes

Certifications, standards, and IP protection classes depend on the specific product variant and application scenario. Requirements regarding IP protection, electrical safety, and documentation should be defined early in the engineering phase. DDM Sensors provides assistance in selecting the appropriate model and aligning with customer specifications.

Challenge and Solution for Design Engineers

Challenge: Pressure Measurement in Confined Spaces

In compact machinery and assemblies, sensors, connections, cable outlets, and mechanical guides often compete for the same space. Simultaneously, the pressure range, overpressure resistance, output signal, and temperature performance must match the application requirements. Relative pressure sensors from DDM Sensors address this interface between miniaturization and technical endurance so that pressure measurement can be seamlessly integrated into the overall system without lengthy design iterations.

Solution: Highly Integrated, Miniaturized Relative Pressure Sensors

Our relative pressure sensors combine a compact footprint with application-oriented pressure ranges and compatible electrical interfaces. This allows them to be embedded in OEM architectures, test benches, pneumatic systems, and mobile applications without expanding the mechanical design. For design engineers, selection can be based not only on pressure range but also on connection geometry, output signal, and temperature range.

Product Portfolio and Custom Solutions

Portfolio Overview for Technical Decision-Makers

For technical decision-makers, choosing the right combination of pressure range, temperature window, and electrical interface is key:

• PV22 & PV22H: Ideally suited when a wide relative pressure range reaching into high pressures as well as robust thermal resistance are required.
• PV15H & PV10: Provide optimal solutions for applications prioritizing ultra-compact installation environments.
• PV22 TEDS: Advantageous when fast and error-free parameterization via TEDS is required during system integration.

Custom Relative Pressure Sensors for Your Specific Application

DDM Sensors develops tailored solutions upon request when standard configurations do not fully satisfy space constraints, fitting requirements, or signal formats. Customization options include modified pressure ranges, specialized electrical connectors and cable lengths, alternative process connections, and custom calibrations. This flexibility provides a distinct competitive edge in both series production and special-purpose engineering.

Find the Right Sensor for Your Project

When selecting relative pressure sensors for a specific application, we assist you in evaluating pressure ranges, output signals, connections, and media compatibility. Submit your technical specifications so we can identify the optimal sensor line for your machine, module, or OEM system.

Frequently Asked Questions About Relative Pressure Sensors (FAQ)

Which relative pressure sensors does DDM Sensors offer?

Our core product portfolio includes the PV25, PX25, PV22, PV22H, PV22 TEDS, PV15H, and PV10 series. Variants differ by pressure range, temperature capability, output signal, and process connection.

Which applications are relative pressure sensors best suited for?

Typical application fields include industrial automation, pneumatics, robotics, HVAC systems, test and measurement engineering, and medical technology devices. They are particularly suitable for applications with restricted installation space and strict interface requirements.

Which output signals are available for relative pressure sensors?

Depending on the series, available analog output signals include 4 to 20 mA, 0 to 5 V, 1 to 6 V, 0 to 10 V, and 0.5 to 4.5 V. Selection depends on the downstream controller, processing unit, or signal conditioning hardware.