NovaSensor NPI-19 Series

Digital Pressure Sensor I2C

The NovaSensor NPI-19 Digital I²C Pressure Sensor is a member of the NovaSensor® NPI Series and incorporates state-of-the-art IsoSensor technology with I²C interface protocols, which gives the OEM user the best in price and performance. 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. As with all NovaSensor® silicon sensors, the NPI Series employs SenStable® processing technology, providing excellent output stability.

Application

Industrial process control
Corrosive fluid and gas measurement
Hydraulic systems and valves
Tank level measurement
Barometric pressure measurement
Ship and marine systems
Aircraft and avionic systems
Medical equipment

Features

No port or threaded process fittings
Linearity: ±0.25% FSO (BFSL)
Total Error Band: ±1% FSO
I²C interface protocols
14-bit I²C output
Absolute and gauge pressure
Pressure Ranges: 2.5 psi (17 kPa) to 300 psi (2068 kPa)

Specifications

Parameter	Value
Pressure Output	10% to 90% VDD
Device Address	I²C (Addr 0x28H)
Supply Voltage	3.3V
Linearity	±0.25% FSO
Total Error	±1% FSO
Over Pressure	2X
Burst Pressure	3X
Long Term Stability	±0.5% span / year typical
Operating Temperature	-40°C to 125°C
Storage Temperature	-40°C to 125°C