NPI-19 Series
Medium Pressure Sensors
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)
•
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
Amphenol
Advanced Sensors
• Custom configurations and other pressure ranges
available. Please consult the factory.
NPI-19 Series Specifications
Current Driven Medium Pressure,
Media Isolated Pressure Sensor
The NovaSensor NPI 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 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.
A
-Out
The modular design allows for a variety of pressure
R
1
D
port modules, which are hermetically welded to the
+In
sensor header module. Standard types A, B, H, and
4
J are shown inside.
For compensation of temperature effects, a
B
complete resistor network is supplied on a hybrid
+Out
5
ceramic substrate. The IsoSensor design minimizes
3
temperature errors to provide a maximum offset
R
5
error of 0.75% FSO over the 32°F to 158°F (0°C to
C
R
3
2
1
70°C) compensated range.
-In
R
4
R
2
A
-Out
R
1
A
-Out
R
1
+In
D
D
+In
R
6
4
R
2
B
3
5
R
5
2
1
R
3
C
-In
+Out
4
R
2
B
3
5
R
5
2
1
R
3
R
7
C
-In
+Out
R
4
R
4
NPI-19 Series Constant Voltage schematic diagram
NPI-19 Series Constant Current schematic diagram
NPI-19 Series Specifications
Parameter
General
(8)
Pressure Range
NPI 19
0 to 100 kPa
0 to 200 kPa
0 to 700 kPa
0 to 1700 kPa
0 to 103.4 kPa
0 to 206.8 kPa
0 to 344.7 kPa
0 to 689.4 kPa
0 to 1379 kPa
0 to 2068 kPa
2x
0 to 15 psi (0 to 1 bar)
0 to 30 psi (0 to 2.07 bar)
0 to 100 psi (0 to 6.89 bar)
0 to 250 psi (0 to 17.24 bar)
0 to 15 psi (0 to 1 bar)
0 to 30 psi (0 to 2.07 bar)
0 to 50 psi (0 to 3.44 bar)
0 to 100 psi (0 to 6.89 bar)
0 to 200 psi (0 to 14 bar)
0 to 300 psi (0 to 21 bar)
rated pressure
Value
Notes
Parameter
Units
Min.
Typical
Max.
Notes
Performance Parameters
(5)
Compensated
(1)
Offset
FSO Output
NPI-19
NPI-19VC
Linearity
Hysteresis and
Repeatability
mV
mV
mV
%FSO
%FSO
-2
70
99
-0.25
-0.05
1
100
100
0.1
0.01
2
130
101
0.25
0.05
mV
2
2
3
NPI-19VC
Thermal Accuracy of Offset
NPI-19
NPI-19VC
%FSO
%FSO
-0.75
-1.0
0.2
0.2
0.75
1.0
4
4
Maximum Overpressure
Electrical @ 77°F (25°C) unless otherwise stated
Input Excitation
NPI-19
NPI-19VC
Insulation Resistance
Input Impedance
NPI-19
NPI-19VC
Output Impedance
Bridge Impedance
Environmental
Temperature Range
Operating
(6)
Compensation
Shock
Life (Dynamic Pressure
Cycle)
Mechanical
Weight
Media Compatibility
Case and Diaphragm
Material
Recommended O-Ring
Type A
Type B
0.02 lb (10 g)
0.1 lb (45 g)
NPI-19A-XXX
NPI-19B/H/J-XXX
-40°F to 257°F
32°F to 158°F
10 gRMs
100 g
1 x 10
6
Cycles
(-40°C to 125°C)
(0°C to 70°C)
20 to 2000 Hz
11 milliseconds
1.0 mA
10 VDC
10
8
Ω
4,000
Ω
4,000
Ω
5,000
Ω
5,000
Ω
1.5mA maximum
1.5 VDC maximum
@50 VDC
± 20%
± 20%
± 20%
Thermal Accuracy of FSO
%FSO
Thermal Hysteresis
%FSO
Short-Term
Stability of
Offset
Short-Term
Stability of FSO
Long-Term
Stability of
Offset
Long-Term
Stability of FSO
µV/V
-0.2
0.1
0.2
5
6
-0.75
02
0.75
4
µV/V
%FSO
5
0.1
6
7
%FSO
0.1
7
1. Performance with offset, thermal accuracy of offset, and thermal
accuracy of FSO compensation resistors.
2. FSO with 1.0 mA input excitation, 10 VDC for NPI-19VC.
3.
Linearity by best fit straight line.
4. 2°F to 158°F (0°C to 70°C) with reference to 77°F (25°C).
5. 32°F to 158°F (0 to 70°C), by design.
6. Normalized offset/bridge voltage—100 hours, typical value, not
tested in production.
7. 1 year, typical value, not tested in production.
8. Consult factory for vacuum applications.
All corrosive media compatible with
316 L stainless steel
316L stainless steel
0.66 in x 0.039 (16.76 mm x 1 mm) diameter
2-013 per ISO 3601/1
Ordering Information
NPI-19 Series Specifications
NPI-19 NovaSensor Pressure Type (ISO Sensor)
Code Pressure Port Type
A
B
H
J
No port, o-ring seal
1/2-20 UNF
1/4-18 NPT
1/8-27 NPT
Code Pressure Ranges
101
100 kPa, 1 mA
201
701
172
015
030
050
100
200
300
200 kPa, 1 mA
700 kPa, 1 mA
1700 kPa, 1mA
015 psi (1 bar), 10 V
30 psi (2.07 bar), 10 V
50 psi (3.44 bar), 10 V
100 psi (6.89 bar), 10 V
200 psi (14 bar), 10 V
300 psi (21 bar), 10 V
Code
A
G
Description
Absolute
Gauge
Code Voltage
H
V
Constant Current Supply (1.0 mA)
Constant Voltage Supply (10 VDC)
NPI-19 - ____ - ____ - ____ - ____ Typical model number
NPI-19 Series dimensions
Amphenol
Advanced Sensors
www.amphenol-sensors.com
© 2015 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice.
Other company names and product names used in this document are the registered trademarks or
trademarks of their respective owners.
AAS-920-312C-10/2015
Mouser Electronics
Authorized Distributor
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:
NPI-19A-200AV NPI-19B-015GV NPI-19B-015AV NPI-19H-201AH NPI-19A-015GV NPI-19A-015AV NPI-19A-
200GAV NPI-19H-200AV NPI-19H-200GV NPI-19J-200GV NPI-19B-100GV NPI-19A-100GV NPI-19A-100AV NPI-
19B-100AV NPI-19H-030GV NPI-19J-030AV NPI-19H-030AV NPI-19B-200AV NPI-19A-200GV NPI-19-200GV
NPI-19B-201AH NPI-19A-201AH NPI-19A-201GH NPI-19J-300AV NPI-19J-201AH NPI-19J-030GV NPI-19H-300AV
NPI-19J-300GV NPI-19H-300GV NPI-19B-701GH NPI-19A-701GH NPI-19J-200AV NPI-19B-701AH NPI-19A-
701AH NPI-19B-030GV NPI-19A-030AV NPI-19H-015GV NPI-19J-015GV NPI-19J-015AV NPI-19H-015AV NPI-
19J-050AV NPI-19A-101AH NPI-19B-101AH NPI-19A-101GH NPI-19B-101GH NPI-19J-201GH NPI-19H-201GH
NPI-19H-172GH NPI-19A-030GV NPI-19A-300AV NPI-19B-300AV NPI-19A-300GV NPI-19B-030AV NPI-19H-
050GV NPI-19J-050GV NPI-19H-050AV NPI-19H-101GH NPI-19J-101GH NPI-19B-201GH NPI-19J-100GV NPI-
19-300GV NPI-19H-101AH NPI-19J-101AH NPI-19H-100GV NPI-19H-100AV NPI-19J-100AV NPI-19J-701GH NPI-
19A-172AH NPI-19B-172AH NPI-19A-172GH NPI-19B-172GH NPI-19H-701AH NPI-19J-701AH NPI-19H-701GH
NPI-19-050GV NPI-19H-172AH NPI-19J-172AH NPI-19A-050GV NPI-19B-050AV NPI-19A-050AV NPI-19J-172GH
NPI-19B-300GV NPI-19B-050GV NPI-19B-200GV
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