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About Vacuum Sensors
Vacuum sensors are used to measure vacuum or sub-atmospheric pressures. They produce electrical output signals and are available with packaging, signal conditioning, and compensation. Vacuum range is the most important specification to consider when selecting vacuum sensors. Units of measure include pounds per square inch (psi), kilo pascals (kPa), atmospheres (atm), bars, inches of mercury (inHg), centimeters of mercury (cmHg), inches of water (inH2O), feet of water (ftH2O), kilograms per square centimeters (kg / cm2), and ounces per square inch (oz / in2). Applications for vacuum sensors include chemical processing, freeze drying, helium leak detection, and sterilization. Vacuum sensors are also used in lamp, lighting, and laser products; cathode ray tubes (CRT); electron microscopes; high energy physics; optical, functional, and plasma-enhanced deposition; gas delivery manifolds; mechanical vacuum pumps; mass spectrometers; and metallurgical processes.
Many vacuum sensors can perform additional pressure readings such as absolute, differential, gauge, compound, and sealed pressure. Absolute pressure is a pressure measurement relative to a perfect vacuum. Differential pressure is the difference between two input pressures. Gauge pressure, the pressure measured above the local atmospheric pressure, is the most common pressure measurement. Compound vacuum sensors can measure both positive and negative pressures. Sealed gauge pressure is relative to one atmosphere at sea level (14.7 psi), regardless of local atmospheric pressure.
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Engineering Web: Vacuum Sensors
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Festo United States - Pressure and vacuum sensors Pressure and vacuum sensors Pressure sensors SDE and vacuum switches for controlling all pressure values: programmable or as a modular product |
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Festo United States - Pressure / vacuum sensors Position sensors Pressure and vacuum sensors Pressure / vacuum sensors Modular family of sensors for pressure/vacuum measurement. |
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Level Switch Devices - Pressure Switch Instruments - Gems... Liquid Level Sensors Electro-Optic Ultrasonic Type Level Sensors Fluid Flow Switches and Sensors Paddle Wheel and Turbine Sensors See Gems Sensors & Controls Profile & Catalog |
Part Numbers for Vacuum Sensors
| Part # | Distributor | Manufacturer | Product Category | Description |
|---|---|---|---|---|
| PSE541-R04 | Digi-Key | SMC Corporation of America | Sensors, Transducers | SENSOR VACUUM 101KPA 4MM REDUC |
| XPCL10DH | Digi-Key | Honeywell Sensing and Control | Sensors, Transducers | SENSOR DIFF VACUUM GAGE 10 H2O |
| XPCL10DTC | Digi-Key | Honeywell Sensing and Control | Sensors, Transducers | SENSOR DIFF VACUUM GAGE 10 H2O |
| 26PCFFH2G | Digi-Key | Honeywell Sensing and Control | Sensors, Transducers | UNAMPLIFIED VACUUM GAGE 100PSI |
| CPC0.3DFH | Digi-Key | Honeywell Sensing and Control | Sensors, Transducers | SENSOR DIFF VACUUM GAGE .3PSI |
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