Understanding Absolute Pressure Measurement and Core Sensors’ Capabilities
Absolute Pressure Transducers
Core Sensors specializes in manufacturing high-quality absolute pressure transducers with a wide range of measurement options.
What is Absolute Pressure Measurement?
Absolute pressure measurement refers to the pressure relative to a perfect vacuum (zero pressure). Unlike other pressure types, absolute pressure is measured against a fixed reference point—vacuum—making it independent of atmospheric pressure changes. For example, a reading of 15 PSIA (pounds per square inch absolute) indicates the pressure above a complete vacuum.
Comparing Absolute Pressure to Compound and Compound Sealed Gauge Pressure
| Pressure Type | Definition | Reference Point |
| Absolute Pressure | Pressure measured relative to a perfect vacuum. | Vacuum 0 pressure) |
| Barometric Pressure | Subset of absolute pressure measurement; measures barometric pressure / altitude with reference to vacuum. | Vacuum (0 pressure); calibrated with offset such as 1100 mbar to 1700 mbar absolute |
| Compound Pressure | Measures both positive and negative pressures relative to atmospheric pressure; common in compressor applications. | Atmospheric pressure (14.7 PSI at sea level) |
| Compound Sealed Gauge | Measures positive and negative pressures relative to a sealed reference point; provides additional environmental protection. | Fixed reference (not atmospheric) |
Core Sensors’ Manufacturing Capabilities
Core Sensors specializes in manufacturing high-quality absolute pressure transducers with a wide range of measurement options. Common measurement ranges include:
| 15 PSIA | 30 PSIA | 50 PSIA | 100 PSIA | 200 PSIA | 300 PSIA |
Equivalent bar ranges are also available.
These transducers are customizable with various output signals and electrical connections to meet diverse application needs. Popular combinations include 4-20mA output signals paired with M12 electrical connections, which are favored for their noise immunity and compact design. Additionally, Core Sensors offers M12 cordsets in stock, ensuring seamless integration into your system. Our MIL-DTL-26482 connector is also popular and available with mating cordsets.
Applications and Benefits
Core Sensors’ absolute pressure transducers are versatile and can be used across multiple industries and applications, including:
Test and Measurement: Ideal for precise data collection in laboratory or industrial testing environments.
Gloveboxes: Ensures accurate monitoring of controlled atmospheres for sensitive processes like chemical handling or electronics assembly.
Automation Equipment: Supports reliable operation in automated systems requiring consistent pressure monitoring.
Vacuum Systems: Used in processes like packaging, semiconductor manufacturing, or scientific research.
Quick Turnaround Times
Core Sensors is recognized for its industry-leading turnaround times. For orders of fewer than 10 pieces, standard lead times are just 2-3 weeks after receipt of order (ARO) with expedited options available to meet urgent demands. This ensures you get exactly what you need when you need it—critical for minimizing downtime and maintaining operational efficiency. Additionally, we stock various cable assemblies to provide a complete solution.
With Core Sensors’ expertise in manufacturing absolute pressure transducers, customizable options, and fast delivery times, you can confidently address your specific application requirements while benefiting from reliable performance and seamless integration into your systems.
About Core Sensors:
Core Sensors designs, manufactures and distributes high quality sensors for measuring pressure and temperature properties for industrial and hazardous applications worldwide. Core offers solutions for industrial, submersible, differential and hazardous applications in both standard and custom packaging. In-house design and manufacturing capabilities along with strategic manufacturing partners allows Core to create solutions to some of the most complex sensor requirements.
