Absolute Pressure Sensors

Absolute pressure sensors are essential tools for engineers and scientists who need to measure pressures relative to a perfect vacuum.

Their versatility makes them ideal for a wide range of industrial and research settings, including leak testing, barometric pressure monitoring, and gas systems. Explore our comprehensive selection of absolute pressure measurement devices, offering a variety of output signals to suit your specific needs.

Choose from a variety of output options, including millivolt, amplified voltage, current loop, and digital, to seamlessly integrate with your existing systems.

• 20 kg/cm² range 5Vdc output pressure transducer for potable water - Potable water pressure transducer with a 0 to 5 volts output and 0 to 20 kg/cm² absolute pressure range
• Ex rated ambient pressure sensor with 800-1100 mbar range - Could you give details of a high accuracy pressure sensor which measures ambient pressure (800 to 1100 mb) for environmental purposes.

• DMK457 Marine Approved Pressure Transmitter
• DS200P Sanitary Low Range Pressure Gauge, Switch and Sensor
• DMP331 Precision Pressure Transmitter
• IMP Low Cost Pressure Sensor

• 20 bar absolute steam pressure transducer - Pressure transducer for measuring a closed steam system pressurized by Nitrogen up to pressures of 20 bar
• 180 degC pressure sensor for saturated steam up to 10 bar - A built-in cooling element allows the pressure sensor to be used on media temperatures up to 200 degC (FKM seal limit).
• 1013 to 1400 mbar barometric pressure transmitter & readout - barometric pressure transmitter that can measure ambient air pressure from 1013-1400 mb in a chamber and provide a 4-20 mA output signal.
• Measuring steam pressure up to 10bar with analog/digital output - I am looking for an analog & digital type pressure sensor for use on steam temperatures from 0 to 200 degrees Celsius over 0 to 10 bar?
• Gas sensors testing barometric pressure sensor with RS485 Modbus RTU interface - We are looking to make high accuracy barometric measurements to use in the testing of gas sensors in an indoor laboratory environment at room temperature.
• Atmospheric air pressure transducer with 10 volt output - Pressure transducer with 0 to 10 v signal to monitor ambient air pressure in a room accurate to 0.5% range.

• DMP320 0.5 msec Fast Response Pressure Sensor
• IWPT Wireless Battery Powered Pressure Sensor and Receiver
• DMP331P Hygienic Flush Pressure Transmitter
• 33X High Accuracy Digital Output Pressure Sensor

• 5 to 20 psi absolute ambient 4 to 20 ma pressure transmitter - DMP331 can be custom scaled and calibrated during manufacture to your specified barometric range of 5 to 20 psi absolute.
• Barometric 550 to 1150 hPa abs high resolution pressure transmitter - High precision barometric pressure transmitter for measuring atmospheric pressure from 550 hPa to 1150 hPa absolute.
• Air flow normalising calculation barometric pressure transmitter - This pressure transmitter is used to measure barometric pressure for the purpose of normalising air flow calculations.
• 0.05 msec response time, 2 bar range pressure transducer - The IMP pressure transducer without any amplification electronics will provide a response time of around 23 microseconds (0.023 msec) for a 2 bar range.
• 300°C max temperature, 0 to 300 bar, high range pressure sensor - The 35X HTC can measure up to 300 bar (and higher if necessary) on media up to temperatures of 300 degC max.
• Detecting water intake blockage on submerged reservoir intake screen using two sensors - Discover a robust solution for measuring head loss and detecting ice blockages on remote water intake screens. Learn how dual submersible pressure transmitters with 4-20mA outputs overcome long-distance signal transmission challenges in reservoir monitoring.

• 35X Flush Diaphragm Digital Output Pressure Sensor
• LEO3 Current or Digital Output Pressure Gauge
• SSPT Subsea Wet-Mateable Electrical Connector Pressure Sensor
• DMP331i High Accuracy Pressure Transmitter

• Barometric pressure sensor for hurricane tracking on uncrewed surface vessel
• Near-atmospheric pressure transmitter for hazardous gas test chambers
• Heating appliance chimney draft and barometric pressure testing using differential and absolute sensors
• Marine approved atmospheric pressure sensor
• 800 to 1200 mbar atmospheric pressure transmitter
• 700 to 1100 millibar scaled 4 to 20mA output pressure sensor for barometric pressure measurement
• 300 mmHg absolute vacuum pressure transducer with 10 volts output
• Power generation OEM engine oil pressure sensor with 75bar abs range and RS485
• Water pump input/output testing pressure sensor with 30 psi absolute range
• Manufacturing automation absolute pressure sensor with 100psia range and 0-10Vdc out

• Absolute Pressure Transmitters - Select absolute pressure transmitters with 4-20mA output, designed for precise measurements against a perfect vacuum. Ideal for leak testing, vacuum processes, and barometric-independent applications.
• Waterproof Absolute Pressure Sensors - Discover robust waterproof absolute pressure sensors, ideal for reliable underwater pressure and level measurement where vented sensors are impractical. Learn how readings convert to gauge pressure. Suited for subsea, borehole, and marine deployments.
• Absolute Reference Voltage Output Pressure Transducers - High voltage output absolute pressure transducers are essential for precise pressure measurements in applications where a perfect vacuum serves as the reference point.

Find out more about Absolute Pressure Sensors to determine which product options and capabilities will best meet your application requirements.

Absolute pressure sensors are engineered to measure pressure in relation to a perfect vacuum (0 PSI absolute). This distinction is critical in applications where the reference point must be absolute zero, rather than the fluctuating atmospheric pressure used in gauge pressure sensors.

Applications

• Leak Testing: By measuring pressure relative to a vacuum, absolute pressure sensors detect leaks in systems independently of changes in atmospheric pressure, ensuring the integrity of sealed environments.
• Barometric Compensation: In applications sensitive to atmospheric pressure fluctuations, absolute pressure sensors provide accurate readings by factoring in barometric changes. This is crucial for altitude measurements, weather monitoring, and process control systems.
• Atmospheric Pressure Measurement: These sensors directly measure the pressure exerted by the atmosphere, aiding in meteorological studies, aviation instrumentation, and environmental monitoring.
• Industrial Processes: Absolute pressure sensors monitor and control vacuum levels in manufacturing processes, ensuring product quality and process efficiency. They are used in leak detection systems, vacuum packaging, and distillation processes.
• Scientific Research: These sensors play a crucial role in scientific experiments requiring precise pressure measurements, such as vacuum chambers, gas analysis, and material characterization.
• Environmental Monitoring: Absolute pressure sensors are used in weather stations to measure barometric pressure, contributing to accurate weather forecasting and climate studies.
• Offshore Research & Exploration: Certain absolute pressure sensors are designed for underwater use, measuring pressure relative to a vacuum at significant depths. They play a crucial role in oceanographic research and subsea exploration.

Output Options

Absolute pressure sensors offer a range of output options to suit different system requirements.

• Millivolt Output: Provides a low-level voltage signal directly proportional to the applied pressure, commonly used with data acquisition systems and signal conditioners.
• Amplified Voltage Output: Delivers a higher-level voltage signal for easier integration with control systems and process instrumentation.
• Current Loop Output: Offers a 4-20 mA current signal, widely used in industrial automation for its inherent noise immunity and long-distance transmission capabilities.
• Digital Output: Provides pressure readings in digital format, typically via RS-232, RS-485, or I2C interfaces, enabling direct communication with computers and PLCs.