Amphenol Advanced Sensors - NPI-15(High Pressure Sensor Amphenol Advanced Sensors

NPI-15 High Pressure Sensor


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  • Solid state, high reliability
  • High sensitivity, 200 mV typical FSO with 1.0 mA excitation
  • 316 L stainless steel, IsoSensor design
  • Linearity 0.1% FSO typical
  • Three standard ranges: 0 psi to 500 psi to 0 psi to 5,000 psi (0 bar to 34 bar to 0 bar to 345 bar) available, sealed gage or absolute
  • Standard configurations include:
    • 1/2–20 UNF threaded male port with 1.0 in 25.40 mm) flange
    • 0.59 in (15 mm) diameter x 0.87 in (22 mm) long cylinder with o-ring seals
    • 1/4–18 NPT male port with 7/8 in flange 
    • 1/8–27 NPT male port with 7/8 in flange
  • Thermal accuracy FSO 0.2% typical
  • Custom Configurations and Other Pressure Ranges can be accommodated


  • Process control systems
  • Hydraulic systems and valves
  • Automobiles and trucks
  • Biomedical instruments
  • Refrigeration and HVAC controls
  • Appliances and consumer electronics
  • Ship and marine systems
  • Aircraft and avionic systems

The NovaSensor NPI-15 Series incorporates state-of-the-art IsoSensor technology, which gives the OEM user the best in price and performance. They are designed to operate in hostile environments and yet give the outstanding sensitivity, linearity, and hysteresis of a silicon sensor. The piezoresistive sensor chip is housed in a fluid-filled cylindrical cavity and isolated from the measured media by a stainless steel diaphragm and body. As with all NovaSensor silicon sensors, the NPI-15 Series employs SenStable® processing technology, providing excellent stability.

The modular design allows for a variety of pressure port modules which are hermetically welded to the sensor header module. Standard types A, B, H and J are shown to the right.

For compensation of temperature effects, a complete resistor network is supplied on a hybrid ceramic substrate. The IsoSensor design minimizes temperature errors to provide a maximum offset errors of 0.75% FSO over the 32°F to 158°F (0°C to 70°C) compensated range.