NovaSensor OEM Pressure Sensors

NPI-19VC Series Voltage Compensated, Medium 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 Six standard ranges: 15, 30, 50, 100 200 and 300 psi available, gage or absolute Standard configurations include: —1/2"–20 UNF threaded male port with 1.0" flange —0.74" diameter x 0.28" 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