NovaSensor OEM Pressure Sensors

NPI-15 Series Current Driven High Pressure, Media Isolated Pressure Sensor

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 fluidfilled 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 stability.

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Features & Benefits:   Solid state, high reliability High sensitivity, 200mV FSO with 1.0mA excitation 316 stainless steel, IsoSensor design Linearity 0.1% FSO typical Thermal accuracy FSO 0.2% typical Three standard ranges: 0–500 to 0–5,000 psi available, sealed gage or absolute 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 can be accommodated 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

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 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 0 to 70°C compensated range.