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NovaSensor NPI-19 Series
Medium Pressure Sensors
NovaSensor NPI-19 Series of Medium Pressure Sensors consists of current-driven, media-isolated pressure sensors, incorporating state-of-the-art IsoSensor technology. They 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.The modular design allows for a variety of pressure port modules, which are hermetically welded to the sensor header module.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 error of 0.75% FSO over the 32°F to 158°F (0°C to 70°C) compensated range.
Application
- 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)
- High sensitivity, 100 mV FSO with 1.0 mA excitation
- Linearity 0.1% FSO typical
- Four standard ranges: 0 to 15 psig (0 to 1 bar), 0 to 250 psig (0 to 17 bar) available in gauge or absolute
- Voltage driven ranges: 15, 30, 50, 100, 200 and 300 psi (1, 2, 3, 7, 14 and 20 bar) gauge and absolute
- Standard configurations include:
- 1/2 in-20 UNF threaded male port with 1.0 in (25 mm) flange
- 0.74 in (18.8 mm) diameter x 0.28 in (7 mm) long cylinder with o-ring seals
- 1/4 in-18 NPT male port with 7/8 in (22 mm) flange
- 1/8 in-27 NPT male port with 7/8 in (22 mm) flange
- Custom configurations and other pressure ranges available.
Specifications
| General Parameter | Value | Notes | |
| Pressure Range NPI-19 |
0 to 100 kPa | 0 to 15 psi (0 to 1 bar) | |
| 0 to 200 kPa | 0 to 30 psi (0 to 2.07 bar) | ||
| 0 to 700 kPa | 0 to 100 psi (0 to 6.89 bar) | ||
| 0 to 1700 kPa | 0 to 250 psi (0 to 17.24 bar) | ||
| Pressure Range NPI-19VC |
0 to 103.4 kPa | 0 to 15 psi (0 to 1 bar) | |
| 0 to 206.8 kPa | 0 to 30 psi (0 to 2.07 bar) | ||
| 0 to 344.7 kPa | 0 to 50 psi (0 to 3.44 bar) | ||
| 0 to 689.4 kPa | 0 to 100 psi (0 to 6.89 bar) | ||
| 0 to 1379 kPa | 0 to 200 psi (0 to 14 bar) | ||
| 0 to 2068 kPa | 0 to 300 psi (0 to 21 bar) | ||
| Maximum Overpressure | 2x rated pressure | ||
| Electrical @ 77°F (25°C) | Value | Notes |
| Input Excitation | ||
| NPI-19 | 1.0 mA | 1.5mA maximum |
| NPI-19VC | 10 VDC | 15 VDC maximum |
| Insulation Resistance | 108 Ω | @ 50 VDC |
| Input Impedance | ||
| NPI-19 | 4,000 Ω | ±20% |
| NPI-19VC | 4,000 Ω | |
| Output Impedance | 5,000 Ω | ±20% |
| Bridge Impedance | 5,000 Ω | ±20% |
| Environmental & Mechanical | Value | Notes |
| Operating Temperature Range | -40°F to 257°F | (-40°C to 125°C) |
| Compensation Temperature Range | 32°F to 158°F 10g RMs |
(0°C to 70°C) 20 to 2000 Hz |
| Shock | 100 g | 11 milliseconds |
| Life (Dynamic Pressure Cycle) | 1 x 106 Cycles | |
| Weight | 0.02 lb (10 g) 0.1 lb (45 g) |
NPI-19A-XXX NPI-19B/H/J-XXX |
| Media Compatibility | All corrosive media compatible with 316 L stainless steel | |
| Case and Diaphragm Material | 316 L stainless steel | |
| Recommended O-Ring – Type A | 0.66 in x 0.039 (16.76 mm x 1 mm) diameter | |
| Recommended O-Ring – Type B | 2-013 per ISO 3601/1 | |
| Performance Parameters Compensated | Units | Min. | Typical | Max. | Notes |
| Offset | mV | -2 | 1 | 2 | |
| FSO Output | |||||
| NPI-19 | mV | 70 | 100 | 130 | 2 |
| NPI-19VC | mV | 99 | 100 | 101 | 2 |
| Linearity | %FSO | -0.25 | 0.1 | 0.25 | 3 |
| Hysteresis and Repeatability | %FSO | -0.05 | 0.01 | 0.05 | |
| Thermal Accuracy of Offset | |||||
| NPI-19 | %FSO | -0.75 | 0.2 | 0.75 | 4 |
| NPI-19VC | %FSO | -1.0 | 0.2 | 1.0 | 4 |
| Thermal Accuracy | %FSO | -0.75 | 0.2 | 0.75 | 4 |
| Thermal Hysteresis | %FSO | -0.2 | 0.1 | 0.2 | 5 |
| Short-Term Stability of Offset | µV/V | 6 | |||
| Short-Term Stability of FSO | µV/V | 5 | 6 | ||
| Long-Term Stability of Offset | %FSO | 0.1 | 7 | ||
| Long-Term Stability of FSO | %FSO | 0.1 | 7 | ||
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Product Documents
Datasheets & Spotlights
📄 NovaSensor NPI-19 | Medium Pressure Sensors – Datasheet
📄 NovaSensor NPI-19 | Low Pressure Sensor – Datasheet
💡 NovaSensor Application Spotlight | MEMS Pressure Sensor Solutions for Industrial Applications
💡 NovaSensor Product Spotlight | NPI Series of Media-Isolated Pressure Sensors
Catalog
Part Numbers
| Available Part Numbers | |||
| NPI-19A-002GV | NPI-19A-300GV | NPI-19B-701AH | NPI-19H-701GH |
| NPI-19A-005GV | NPI-19A-701AH | NPI-19B-701GH | NPI-19J-015AV |
| NPI-19A-015AV | NPI-19A-701GH | NPI-19H-015AV | NPI-19J-015GV |
| NPI-19A-015GV | NPI-19B-015AV | NPI-19H-015GV | NPI-19J-030AV |
| NPI-19A-021GH (1.5 mA) | NPI-19B-015GV | NPI-19H-030AV | NPI-19J-030GV |
| NPI-19A-030AV | NPI-19B-030AV | NPI-19H-030GV | NPI-19J-050AV |
| NPI-19A-030GV | NPI-19B-030GV | NPI-19H-050AV | NPI-19J-050GV |
| NPI-19A-031GH (1.5 mA) | NPI-19B-050AV | NPI-19H-050GV | NPI-19J-100AV |
| NPI-19A-050AV | NPI-19B-050GV | NPI-19H-100AV | NPI-19J-100GV |
| NPI-19A-050GV | NPI-19B-100AV | NPI-19H-100GV | NPI-19J-101AH |
| NPI-19A-100AV | NPI-19B-100GV | NPI-19H-101AH | NPI-19J-101GH |
| NPI-19A-100GV | NPI-19B-101AH | NPI-19H-101GH | NPI-19J-172AH |
| NPI-19A-101AH | NPI-19B-101GH | NPI-19H-172AH | NPI-19J-172GH |
| NPI-19A-101GH | NPI-19B-172AH | NPI-19H-172GH | NPI-19J-200AV |
| NPI-19A-172AH | NPI-19B-172GH | NPI-19H-200AV | NPI-19J-200GV |
| NPI-19A-172GH | NPI-19B-200AV | NPI-19H-200GV | NPI-19J-201AH |
| NPI-19A-200AV | NPI-19B-200GV | NPI-19H-201AH | NPI-19J-201GH |
| NPI-19A-200GV | NPI-19B-201AH | NPI-19H-201GH | NPI-19J-300AV |
| NPI-19A-201AH | NPI-19B-201GH | NPI-19H-300AV | NPI-19J-300GV |
| NPI-19A-201GH | NPI-19B-300AV | NPI-19H-300GV | NPI-19J-701AH |
| NPI-19A-300AV | NPI-19B-300GV | NPI-19H-701AH | NPI-19J-701GH |
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