Amphenol/SSI Technologies P51 Pressure MediaSensors 
They are micromachined, absolute, sealed and gauge pressure sensors for aggressive and benign media with superior precision. The series comes with three pressure sensor type conventions: absolute, vented gauge, or sealed gauge. The compact, robust sensors, with a wide range of accessories, measure pressures from 3 PSI to 7,500 PSI and are suitable for a variety of automotive, industrial and commercial applications.
Pressure detection types:
Absolute sensors – Absolute sensors (PSIA) measure the pressure relative to a sealed chamber in a perfect vacuum, which remains unchanged regardless of ambient pressure conditions. PSIA sensors are used where vacuum or vacuum and positive pressure measurements are required in an application.
Gauge Sensors – Gauge sensors (PSIG) measure pressure relative to ambient pressure, rather than in a sealed chamber with a perfect vacuum. PSIG sensors are used for lower pressure applications where measurement in vacuum is not required or provided.
Sealed Gauge Pressure – Sealed gauge sensors (PSIS) measure pressure relative to a sealed chamber at 0 PSIG. PSIS sensors are used for higher pressure applications where measurement in vacuum is not required or provided.
Specifications:
- Maximum pressure: 7500 PSI
- Accuracy: <±1.00% FS
- Maximum operating temperature: 125°C
Forms:
- Automotive Performance
- Compressors
- Generators
- Irrigation
- Bombs
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