Omega Products PX138-001D5V User Manual
LOW-COST SILICON PRESSURE SENSOR
WITH AMPLIFIED VOLTAGE OUTPUT
GAGE, DIFFERENTIAL, ABSOLUTE PRESSURE
±0.3 to ±30 psi
±0.02 to ±2 bar
PX138 Series
U Available for Differential,
Gage, or Absolute
Measurement
U Precision 5V Output Span
U Precise Temperature
Compensation
U Constant Voltage
Excitation
U For Clean, Dry Gas
The PX138 Series pressure
transducer uses state-of-the-art
micro-machined silicon sensors
with stress-free packaging
techniques to provide highly
accurate, temperature-compensated
pressure measurements for the
most demanding applications.
When operating from an 8 Vdc
regulated power source, the PX138
transducer provides a 1 to 6 Vdc
output. Other regulated voltages
from 7 to 16V can be used but the
output will change in proportion to
the excitation.
Actual size.
0.64
(0.25)
27.4
(1.08)
0.0356 x 0.05
(0.014 x 0.02)
4 PLACES FOR
ELECTRICAL CONNECTION
(0.19)
PX138-001D5V, shown
2.5x larger than actual size.
4.8
PINOUT:
1. +Vs
2.Gnd
3.Vout
4. N/C
RIVET
MOUNTING
3.6 (0.14),
TYPICAL
2.54
(0.10)
A
B
TYPICAL
SPECIFICATIONS
Excitation Voltage:
8 Vdc (7 to 16 Vdc limits)
Output: 1 to 6 Vdc (@ 8 Vdc exc.)
Linearity and Hysteresis:
±0.1% FS typical, 0.5% max
(0.5% typ. 1% max for ±0.3 psi range)
Repeatability: ±0.1% FS typical,
0.3% max
Zero Balance: 3.5 ±0.05 Vdc diff.;
1 ±0.1 Vdc abs.
Storage Temperature:
-40 to 125°C (-40 to 257°F)
Compensated Temp Range:
0 to 50°C (32 to 122°F)
Zero Temp Effects: ±0.5% FS
(±1% FS for 0.3 psi)
Span Temp Effects: ±0.5% FS
(±1% FS for 0.3 psi)
Proof Pressure: >3x FS pressure
Burst Pressure: >5x FS pressure
Common Mode Press: 50 psi
Media Compatibility: For use with
gases compatible with silicon, glassfilled nylon and alumina ceramic
Mating Connector: CX136-4
(sold separately)
12.2
(0.48)
Dimensions: mm (in)
14.0
(0.55)
Port A = Absolute
Port B = Gage
20.3
(0.80)
21.6
(0.85)
27.9
(1.10)
To Order Visit omega.com/px138 for Pricing and Details
GAGE/DIFF PRESSURE MODEL NO. COMPATIBLE METERS
±0.3 psi 0.02 bar PX138-0.3D5V DP24-E, DP25B-E, DP41-E
±1 psi 0.069 bar PX138-001D5V DP24-E, DP25B-E, DP41-E
±5 psi 0.34 bar PX138-005D5V DP24-E, DP25B-E, DP41-E
±15 psi 1.0 bar PX138-015D5V DP24-E, DP25B-E, DP41-E
ABSOLUTE PRESSURE RANGES
0 to 15 psia 0 to 1.0 bar PX138-015A5V DP24-E, DP25B-E, DP41-E
0 to 30 psia 0 to 2.1 bar PX138-030A5V DP24-E, DP25B-E, DP41-E
Comes complete with operator’s manual.
Ordering Example: PX138-001D5V, voltage output silicon pressure sensor with a gage/
differential range of ±1 psi.
ACCESSORIES
MODEL NO. DESCRIPTION
PST-8 8 Vdc power supply
CX136-4 4-contact connector
B-85
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