NPI-19A-021GH (1.5 MA) 数据手册
NPI-19 Series
NovaSensor Low
Pressure Sensors
Features
Applications
• Solid state, high reliability
• Process control systems
• 316L stainless steel, ISO sensor design
• Hydraulic systems and valves
• ±0.5% static accuracy
• Biomedical instruments
• Temperature compensated 32°F to 158°F (0°C to
70°C)
• Refrigeration and HVAC controls
• Appliances and consumer electronics
• 125 mV typical FSO on current version
• Ship and marine systems
• 75 ±1 mV FSO on voltage version
• Aircraft and avionic systems
• Thermal errors less than 2% FSO
• Two standard ranges:
0 to 2.5 psig (0 to 172 mBar)
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 with o-ring seals
• Custom configurations and other pressure
ranges available. Please consult the factory.
Amphenol
Advanced Sensors
NPI media isolated sensors 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. 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. Please consult
NovaSensor for more details.
NPI-19 Series
Specifications
Operating
Constant Current (1.5 mA)
Constant Voltage (10 V)
Value
Notes
Value
Notes
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
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
General
Pressure Ranges
Electrical @ 77°F (25°C) unless otherwise stated
Input Excitation
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%
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)
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
All corrosive media compatible with 316 L
stainless steel
Case and Diaphragm
Material
316L stainless steel
316L stainless steel
Recommended O-Ring
NPI-19A; 0.66 in x 0.039 in (16.76 mm x 1 mm)
NPI-19A; 0.66 in x 0.039 in (16.76 mm x 1 mm)
Environmental
Mechanical
Compensated
Performance
(1.5 mA)
(10 VDC)
Parameter Notes
Units
Minimum
Type
Maximum
Units
Minimum
Type
Maximum
Offset
mV
-2
±1
2
mV
-2
±1
2
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
Full Scale Output
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.
NPI-19 Series
Specifications
A
-Out
R1
Ordering Information
+In
4
The code number to be ordered may be specified as follows:
NPI-19 NovaSensor Pressure Type (ISO Sensor)
Code
Pressure Port Type
A
No port, o-ring seal
Code
Pressure Range
021
2.5 psi (172 mbar), 1.5 mA
002
2.5 psi (172 mbar), 10 V
031
5 psi (345 mbar), 1.5 mA
005
5 psi (345 mbar), 10 V
Code Description
G
Gauge
Code
Tolerance
H
Constant Current Supply
(1.5 mA)
V
Constant Voltage Supply
(10 VDC)
NPI-19 -
____ -
____ -
____ -
D
R2
B
+Out
5
3
R5
2
1
C
R3
-In
R4
Pin number 4 connected to chip substrate.
Constant current schematic diagram
____ Typical model number
A
-Out
R1
D
+In
4
R6
R2
B
+Out
5
3
R5
2
1
C
R3
R7
R4
O-ring area*
Flat 2 in (50 mm) long
nylon flex cable (standard)
4
3
2
5
1
A B CD
Constant voltage schematic diagram
0.05 in
(1.4 mm)
Ø 0.56 in
(14.2 mm)
Ceramic
substrate
Ø 0.74 in (18.8 mm) minimum
Ø 0.745 in (18.9 mm) maximum
Tig weld
Port type A has no internal and
external chamber for welding
Spacer
0.46 in (11.8 mm) minimum
0.53 in (13.58 mm) maximum
0.2 in
(5.05 mm)
0.12 in
(3.05 mm)
*Uses o-ring 0.66 in ID x 0.039 in (16.76 mm x 1 mm) cross section.
-In
Amphenol
Advanced Sensors
www.amphenol-sensors.com
© 2014 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-920-298B-06/2014
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