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  • NovaSensor NPI-19 Series | Low Pressure Sensors

NovaSensor NPI-19 Series | Low Pressure Sensors

    Pressure Sensors

Nova Sensor NPI-19 Low Pressure Sensor, Nova Sensor NPI-19 Medium Pressure Sensor

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.

 

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  • Applications
  • Features
  • Specifications
  • Product Documents
  • Part Nos.

Applications

  • Process control systems
  • Hydraulic systems and valves
  • Biomedical instruments
  • Refrigeration and HVAC controls
  • Appliances and consumer electronics
  • Ship and marine systems
  • Aircraft and avionic systems 

Features

  • 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.

Specifications

  Constant Current (1.5 mA) Constant Voltage (10 V)
General Value Notes Value Notes
Pressure Range: 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
Pressure Range: 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 @ 77°F (25°C) unless otherwise stated
Input Exictation 1.5 mA maximum 2 mA maximum 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
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)
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 stainless steel
Case and Diaphragm Material 316 L stainless steel
Recommended O-Ring NPI-19A; 0.66 in x 0.039 in (16.76 mm x 1 mm)

 

Compensated Performance Constant Current (1.5 mA) Constant Voltage (10 V)  
Parameter Notes Units Minimum Type Maximum Units Minimum Type Maximum Note
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 77°F (25°C) and at 1.5 mA constant current or 10 VDC, unless otherwise noted.
  2. Includes Linearity (BFSL), pressure hysteresis and repeatability errors.
  3. 32°F to 158°F (0°C to 70°C) with reference to 77°F (25°C).
  4. Consult factory for vacuum applications.

Product Documents

English

NovaSensor NPI-19 | Low Pressure Sensor - Datasheet

  • Download

NovaSensor NPI-19 | Medium Pressure Sensors - Product Datasheet

  • Download

NovaSensor Application Spotlight | MEMS Pressure Sensor Solutions for Industrial Applications - Application Spotlight

  • Download

NovaSensor Product Spotlight | NPI Series of Media-Isolated Pressure Sensors - Product Spotlight

  • Download

English

Amphenol Advanced Sensors | Connecting Your World Through Sensing Innovations - OEM Product Catalog

  • Download

Part Nos.

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)

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