NPI-19 Series Low Pressure Sensors

NovaSensor NPI-19 Series of Low Pressure Sensors consists of media-isolated pressure sensors that are designed to operate in hostile environments while still providing 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. It is available in either a constant current or constant voltage version.

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 as well.

Solid state, high reliability
316L stainless steel, ISO sensor design
±0.5% static accuracy
Temperature compensated 32°F to 158°F (0°C to 70°C)
125 mV typical FSO on current version
75 ±1 mV FSO on voltage version
Thermal errors less than 2% FSO
Two standard ranges:
- 0 to 2.5 psig (0 to 1 bar)
- 0 to 5 psig (0 to 345 mBar)
Standard configurations include: 0.74 in (19 mm) diameter x 0.28 in (7.1 mm) long cylinder
Custom configurations and other pressure ranges available.

Pressure Range	Constant Current (1.5 mA)	Notes	Constant Voltage (10V)	Notes
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
Max Overpressure	3x pressure	rated	3x pressure	rated

Electrical Specifications @ 77°F (25°C), unless otherwise stated	Constant Current (1.5 mA)	Notes	Constant Voltage (10V)	Notes
Input Excitation	1.5 mA max	2 mA max	10 VDC	12 VDC
Insulation Resistance	10⁸ Ω	@ 50 VDC	10⁸ Ω	@ 50 VDC
Input Impedance	4000 Ω	typical	10,000 Ω	typical
Output Impedance	5000 Ω	±20%	5000 Ω	±20%
Bridge Impedance	5000 Ω	±20%	5000 Ω	±20%

Environmental Specifications	Constant Current (1.5 mA)	Notes	Constant Voltage (10V)	Notes
Compensated Temperature	32°F to 158°F	(0°C to 70°C)	32°F to 158°F	(0°C to 70°C)
Operating Temperature	14°F to 176°F	(-10°C to 80°C)	14°F to 176°F	(-10°C to 80°C)
Storage Temperature	-40°F to 257°F	(-40°C to 125°C)	-40°F to 257°F	(-40°C to 125°C)

For additional specifications, see product datasheet.

Part Number	Description
NPI-19-A-021-G-H	No port, 2.5psi, 1.5mA, constant current supply (1.5mA)
NPI-19-A-021-G-V	No port, 2.5psi, 1.5mA, constant voltage supply (10VDC)
NPI-19-A-002-G-H	No port, 2.5psi, 10 V, constant current supply (1.5mA)
NPI-19-A-002-G-V	No port, 2.5psi, 10 V, constant voltage supply (10VDC)
NPI-19-A-031-G-H	No port, 5psi, 1.5mA, constant current supply (1.5mA)
NPI-19-A-031-G-V	No port, 5psi, 1.5mA, constant voltage supply (10VDC)
NPI-19-A-005-G-H	No port, 5psi, 10 V, constant current supply (1.5mA)
NPI-19-A-005-G-V	No port, 5psi, 10 V, constant voltage supply (10VDC)

Products Menu

NovaSensor NPI-19 Series

Low Pressure Sensors

Markets Menu

PRODUCTS

MARKETS

COMPANY