NPI-19 Series NovaSensor Low Pressure Sensors Features Applications Solid state, high reliability Process control systems 316L stainless steel, ISO sensor design Hydraulic systems and valves 0.5% static accuracy Biomedical instruments Temperature compensated 32F to 158F (0C to Refrigeration and HVAC controls 70C) Appliances and consumer electronics 125 mV typical FSO on current version Ship and marine systems 75 1 mV FSO on voltage version Aircraft and avionic systems Thermal errors less than 2% FSO NPI media isolated sensors are designed to Two standard ranges: operate in hostile environments and yet give the 0 to 2.5 psig (0 to 172 mBar) outstanding sensitivity, linearity, and hysteresis 0 to 5 psig (0 to 345 mBar) of a silicon sensor. The piezoresistive sensor chip is housed in a fluid-filled cylindrical cavity and Standard configurations include: isolated from measured media by a stainless steel 0.74 in (19 mm) diameter x 0.28 in (7.1 mm) long diaphragm and body. The NPI Series employs cylinder with o-ring seals SenStable processing technology, providing excellent output stability. It is available in either a Custom configurations and other pressure constant current or constant voltage version. ranges available. Please consult the factory. The modular design allows for a variety of pressure port modules, which are hermetically welded to the sensor header module. There are other standard port styles available. Please consult NovaSensor for more details. Amphenol Advanced SensorsNPI-19 Series Specifications Operating Constant Current (1.5 mA) Constant Voltage (10 V) Value Notes Value Notes General Pressure Ranges 2 .5 PSI 0 to 2.5 psi (0 to 172 mbar) 17.2 kPa 0 to 2.5 psi (0 to 172 mbar) 17.2 kPa 5 PSI 0 to 5 psi (0 to 345 mbar) 34.5 KPa 0 to 5 psi (0 to 345 mbar) 34.5 KPa Maximum Overpressure 3x pressure rated 3x pressure rated Electrical 77F (25C) unless otherwise stated Input Excitation 1.5 mA maximum 2 mA maximum 10 VDC 12 VDC 8 8 Insulation Resistance 10 50 VDC 10 50 VDC Input Impedance 4000 typical 10,000 typical Output Impedance 5000 20% 5000 20% Bridge Impedance 5000 20% 5000 20% Environmental Compensated Temperature 32F to 158F (0C to 70C) 32F to 158F (0C to 70C) Operating Temperature 14F to 176F (-10C to 80C) 14F to 176F (-10C to 80C) Storage Temperature -40F to 257F (-40C to 125C) -40F to 257F (-40C to 125C) Mechanical Weight 0.02 lb (10 g) NPT-19A-XXX 0.02 lb (10 g) NPT-19A-XXX Media Compatibility All corrosive media compatible with 316 L All corrosive media compatible with 316 L stainless steel stainless steel Case and Diaphragm 316L stainless steel 316L stainless steel Material Recommended O-Ring NPI-19A 0.66 in x 0.039 in (16.76 mm x 1 mm) NPI-19A 0.66 in x 0.039 in (16.76 mm x 1 mm) Compensated (1.5 mA) (10 VDC) Performance Parameter Notes Units Minimum Type Maximum Units Minimum Type Maximum Offset mV -2 1 2 mV -2 1 2 Full Scale Output 2.5 PSI mV 50 125 200 mV 72 75 78 5 PSI mV 50 125 200 mV 74 75 76 Static Accuracy %FSO -0.5 0.1 0.5 %FSO -0.5 0.1 0.5 2 Thermal Accuracy of Offset 2.5 PSI %FSO -2 0.5 2 %FSO -2 0.5 2 3 5 PSI %FSO -1.5 0.5 1.5 %FSO -1.5 0.5 1.5 3 Thermal Accuracy of FSO 2.5 PSI %FSO -2 0.5 2 %FSO -2 0.5 2 3 5 PSI %FSO -1.0 0.5 1.0 %FSO -1.0 0.5 1.0 3 Thermal Repeatability 2.5 PSI %FSO -0.3 0.1 0.3 %FSO -0.2 0.1 0.2 3 5 PSI %FSO -0.2 0.1 0.2 %FSO -0.2 0.1 0.2 3 1. Performance with offset, thermal accuracy of offset, and thermal accuracy of FSO compensation resistors. All values measured at 77F (25C) and at 1.5 mA constant current or 10 VDC, unless otherwise noted. 2. Includes Linearity (BFSL), pressure hysteresis and repeatability errors. 3. 32F to 158F (0C to 70C) with reference to 77F (25C). 4. Consult factory for vacuum applications.