NPI-12 Datasheet, PDF (2/4 Pages) Amphenol Corporation – Level sensing

NPI-12 Series Specifications
Description
The NPI-12 Series of solid state, media isolated pressure
sensors are designed to provide a cost effective
solution for applications that detect tube blockages
and pump performance. The NPI-12 Series is intended
to mount adjacent to flexible tubing to sense tube
expansion. Cleanliness is assured with the NPI-12 Series
stainless steel finish.
The NPI-12 Series incorporates state-of-the-art
IsoSensor technology, which gives the OEM user the
best in price and performance. They are designed
to operate in hostile environments while providing
outstanding sensitivity, linearity and hysteresis. The
piezoresistive sensor chip is housed in a fluid filled
cavity and isolated from the measured media by
a stainless steel diaphragm and body. As with all
NovaSensor silicon sensors, the NPI-12 Series employs
SenStable^® processing technology, which provides
excellent output stability.
The NPI-12 Series offers many features with superior
performance. The pressure sensitivity is calibrated at
0.20±0.01 mV/V/psi. The combined errors of linearity,
pressure hysteresis, repeatability and temperature are
less than ±4 %FSO. The maximum overpressure is 50
psi (3.44 bar). A five volt excitation is needed to supply
power to the device. The operating temperature range
for the NPI-12 Series is 50°F to 104°F (10°C to 40°C),
while the storage temperature is -40°F to 158°F (–40°C
to 70°C). Electrical connection is accomplished with a 4
pin connector that accepts standard 0.025 in (0.64 mm)
square posts on 0.100 in (2.54 mm) centers. A red wire
allows for easy recognition of connector orientation.
Parameter
Value
Units Notes
General
Pressure Range
15
psig
Maximum Overpressure 50
psig
Environmental
Temperature Range
Operating
50 to 104
°F
(10°C to 40°C)
Storage
–40 to 158 (Dry) °F
(-40°C to 70°C)
Mechanical
Weight
0.01
lb
(5 g)
Media Compatibility
316L stainless steel
Diaphragm Dome Height 0.000 to 0.008 in
1
(0.000 mm to 0.20 mm)
Electrical(2)
Excitation
5.0
volts
Parameter
Units Min.
Performance Parameters (2)
Zero Pressure Output
±%FSO —
Sensitivity
mV/V/psi 0.19
Linearity, Hysteresis,
Temperature Errors
±%FSO —
Response Time (10% to 90%) ms
—
TypicaL
—
0.20
—
1.0
Max. Notes
5
0.21
4.0 3
—4
1. Maximum change in diaphragm height relative to the edge of the sensor.
2. Supply current = 5 VDC and ambient temperature = 77°F (25°C), unless otherwise
noted.
3. Best fit straight line.
4. For a zero-to-full scale pressure step change.
NPI-12 Series schematic diagram
NPI-12 Series dimensions