Industrial Technologies

division of BIOLAB 

NovaSensor OEM Pressure Sensors

NPI-15VC Series Voltage Compensated, High Pressure, Media Isolated Pressure Sensor

The NovaSensor® voltage compensated NPI 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 measured media by a stainless steel diaphragm and body. The NPI Series employs SenStable® processing technology, providing excellent output stability.

 

 

 

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Features & Benefits:
 

  • 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 FSO 0.2% typical

  • Four standard ranges: 500, 1000, 3000 and 5000 psi available in absolute or -sealed gage

  • Standard configurations include:
    -1/2"-20 UNF threaded male port with 1.0" flange
    -0.59" diameter x 0.87" long cylinder with o-ring seals
    -1/4"-18 NPT male port with 7/8" flange
    -1/8"-27 NPT male port with 7/8" flange

  • Custom configurations and other pressure ranges available.

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 inside.

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 0 to 70°C compensated range.

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

Copyright General Electric Company 2006