4-30
0.80
(20.3)
0.85
(21.6)
1.10
(27.9)
0.10 Typical
(2.54)
A
B
1
Pin 1 234
0.66
(16.0)
0.21
(5.3)
0.42
(10.5)
0.48
(12.2) 0.55
(14.0)
0.174 to 0.190
(4.4 to 4.8)
1.08
(27.4)
0.25
(6.4) Pin Size
0.010 x 0.020
(0.25 x 0.50)
NOTES:
1) Dimensions in inches (millimeters)
pin 1: Vsupply
pin 2: Common
pin 3: Voutput
pin 4: do not
connect
The Amplified line of middle pressure sensors is based upon a proprietary technology to reduce errors. This model
provides a ratiometric 4-volt output with superior output characteristics. The sensor housing has been designed
specifically to reduce errors associated with parasitic stress and strain. In addition the sensor utilizes a silicon,
micromachined, stress concentration enhanced structure to provide a very linear output to measured pressure.
These calibrated and temperature compensated sensors give an accurate and stable output over a wide tempera-
ture range. Each sensor is internally compensated using an ASIC compensation technique. This series is
intended for use with non-corrosive, non-ionic working fluids such as air, dry gases and the like.
The output of the device is ratiometric to the supply voltage and operation from any D.C. supply voltage up to
+7 V is acceptable.
4 Inch Water Pressure Sensors
• 0 to 4 Inch Water Pressure Ranges
• Ratiometric 4V Output
• Temperature Compensated
• Calibrated Zero and Span
Physical Dimensions
• Medical Instrumentation
• Environmental Controls
• HVAC
General Description
Applications
Features
Amplified Pressure Sensors
4-31
4
Minimum
±1.90
2.15
Parameter, note 1
Operating Range, differential pressure
Output Span, note 5
Offset Voltage @ zero differential pressure
Offset Temperature Shift (5°C-50°C), note 2
Linearity, hysteresis error, note 4
Full Scale Shift (5°C-50°C), note 2
Nominal
±4.0
±2.0
2.25
0.05
Maximum
±2.10
2.35
±40
0.25
±2
Units
“ H2O
volt
volt
mvolt
%fs
%span
Parameter, note 1
Operating Range, gage pressure
Output Span, note 5
Offset Voltage @ zero pressure
Offset Temperature Shift (5°C-50°C), note 2
Linearity, hysteresis error, note 4
Full Scale Shift (5°C-50°C), note 2
Minimum
3.90
0.15
Nominal
4.0
4.0
0.25
0.05
Maximum
4.10
0.35
±40
0.25
±2
Units
“ H2O
volt
volt
mvolt
%fs
%span
Specification Notes
NOTE 1: ALL PARAMETERS ARE MEASURED AT 5.0 VOLT EXCITATION, FOR THE NOMINAL FULL SCALE PRESSURE AND ROOM TEMPERATURE
UNLESS OTHERWISE SPECIFIED. PRESSURE MEASUREMENTS ARE WITH POSITIVE PRESSURE APPLIED TO PORT B.
NOTE 2: SHIFT IS RELATIVE TO 25°C.
NOTE 3: SHIFT IS WITHIN THE FIRST HOUR OF EXCITATION APPLIED TO THE DEVICE.
NOTE 4: MEASURED AT ONE-HALF FULL SCALE RATED PRESSURE USING BEST STRAIGHT LINE CURVE FIT.
NOTE 5: THE VOLTAGE ADDED TO THE OFFSET VOLTAGE AT FULL SCALE PRESSURE. NOMINALLY THE OUTPUT VOLTAGE RANGE IS 0.25 TO
4.25 VOLTS FOR MINUS TO PLUS FULL SCALE PRESSURE.
All Sensors reserves the right to make changes to any products herein. All Sensors does not assume any liability arising out of the application or use of any
product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others.
Supply Supply Voltage VS
Common-mode pressure
Lead Temperature
(soldering 2-4 sec.)
+3 to +7 Vdc
10 psig
250°C
Pressure Sensor Characteristics Maximum Ratings
Temperature Ranges
Compensated
Operating
Storage
Humidity Limits
5 to 50° C
-25 to 85° C
-40 to 125° C
0 to 95% RH
(non condensing)
Environmental Specifications
Performance Characteristics for 4 INCH-D-4V
Performance Characteristics for 4 INCH-G-4V
Equivalent Circuit
