NPI-15VC

NPI 15VC: Voltage Compensated Sensors

The NovaSensor® NPI 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 measured media by a stainless steel diaphragm and body.

As with all NovaSensor® silicon sensors, the NPI Series employs SenStable® processing technology, providing excellent output stability.

 

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Features

  • Solid state, high reliability
  • High sensitivity with 100 mV ± 1% FSO at 10 VDC
  • 316L stainless steel, IsoSensor design
  • Linearity 0.1% FSO typical
  • Thermal accuracy 0.2% FSO typical
  • Four standard ranges: 500, 1000, 3000, and 5000 psi (34.5, 69, 207, and 345 bar) available in absolute or sealed gage
  • Standard configurations include:
    —1/2–20 UNF threaded male port with 1.0 in (24.4 mm) flange
    —0.59 in (14.98 mm) diameter x 0.87 in (22.09 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
  • Custom configurations and other pressure ranges available. Please consult factory

Applications

  • 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

Specifications

The NovaSensor voltage compensated NPI-15VC Series offers the performance of our current compensated sensors with the convenience of using a voltage supply. Voltage compensation allows the sensor to be connected directly to the power supply, thereby eliminating the need for additional components to construct a constant current source. These sensors enable field interchangeability with a calibrated FSO of 100 mV ±1 %.

As with all NPI media isolated sensors, 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. The NPI Series employs SenStable® processing technology, providing excellent output 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 resistor network is supplied on a hybrid ceramic substrate. The
IsoSensor design minimizes temperature errors to provide a maximum offset error of 1.0% FSO and a maximum full scale output error of 0.75% FSO over the 32°F to 158°F (0°C to 70°C) compensated range.

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