Pressure Sensors 170PC Series
Low Pressure Gage & Differential/Unamplified
Honeywell1 Sensing and Control11-800-537-6945 USA1F1-815-235-6847 International11-800-737-3360 Canada
29
Temperature Compensated Sensors
FEATURES
1 Miniature package
1 Low pressure measurement
1 Calibrated Null and Span
1 Temperature compensated for Span
over 0 to 50°C
1 Provides interchangeability
176PC SERIES PERFORMANCE CHARACTERISTICS at 10.0 ±0.01 VDC
Excitation, 25°C
Min. Typ. Max. Units
Excitation --- 10 16 VDC
Null Offset –2 0 +2mV
Null Shift, 25° to 0°, 25° to 50°C --- ±3.0 --- mV
Sensitivity Shift, 25° to 0°, 25° to 50°C --- --- ±4.0
1
%Span
--- --- ±3.5
2
%Span
Repeatability & Hysteresis --- ±0.25 --- %Span
Response Time --- --- 1.0 msec
Input Resistance --- 6.3 K --- ohms
Output Resistance --- 4.0 K --- ohms
Stability over One Year --- ±0.5 --- %Span
Weight --- 7 --- grams
Key: 1 J 0-7N, 0-14N H
2
O only
2 J 0-28N H
2
O only
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature –40° to +85°C (–40° to +185°F)
Storage Temperature –55° to +125°C (–67° to +257°F)
Compensated Temperature 0° to +50°C (32° to +122°F)
Shock MIL-STD-202, Method 213 (150 g, half sine, 11 msec)
Vibration MIL-STD-202, Method 204 (10 to 2000 Hz at 20 g)
Media P2 port Wetted materials; polyester housing, epoxy adhesive,
silicon, borosilicate glass, and silicon-to-glass bond*
P1 port Dry gases only
* Liquid media containing some highly ionic solutions could potentially neutralize the chip-to-glass tube
bond.
176PC SERIES ORDER GUIDE
Span, mV
Linearity, %Span
Catalog
Listing
Pressure
Range
H
2
O Min. Typ. Max.
Sensitivity
mV/N H
2
O
Typ.
Overpressure
N H
2
O
Max.
P2 > P1
Max.
P2 < P1
Max.
176PC07HG2 0-7 26 28 30 4.00 140 ±3.00 ±1.50
176PC07HD2 0-7 26 28 30 4.00 140 ±3.00 ±1.50
176PC14HG2 0-14 33 35 37 2.50 140 ±3.00 ±1.50
176PC14HD2 0-14 33 35 37 2.50 140 ±3.00 ±1.50
ELECTRICAL CONNECTIONS
(Internal Circuitry Shown)
NOTES
1. Circled numbers refer to sensor
termination.
2. V
0
J V
2
– V
4
(referenced to pin 3).
3. R
B
J Strain gage resistors (∼ 4.8 kV).
4. R
T
J Sensitivity temperature compen-
sation resistor.
5. R
S
J Sensitivity calibration resistor.
When a positive pressure is applied to
port P2, the differential voltage V
2
– V
4
(voltage at pin 2, with respect to ground,
increases and voltage at pin 4 decreases)
increases linearly with respect to the input
pressure. When a vacuum pressure is
pulled at port P2 (or positive pressure
applied to port P1) the voltage V
2
– V
4
decreases linearly with respect to the in-
put pressure.
Unamplified
