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General Purpose, Stainless Steel Pressure Transducers
0 to 100 psi, Gauge, 4 to 20 mA, Cable
Volume discounts available
Volume Discount Schedule
| Quantity | Price each |
|---|---|
| 1-9 | $368.43 |
| 10-24 | $350.01 |
| 25-49 | $342.64 |
| 50-99 | $327.90 |
| 100+ | $320.53 |
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- 1, 2 & 5 psi Low Pressure Ranges!
- All Stainless Steel Construction
- Gage, Absolute, Compound Gage or Vacuum Pressure
- Rugged Solid State Design
PX309-100GI Model Options
View all modelsEdit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.
*Highlighted options are not compatible. Please select a different combination.
Pressure Range
Pressure Type
Accuracy Value(compensated range)
Output Signal
Electrical Output
Connection/Termination
Additional Features
Accuracy Class
Pressure Port Size
Pressure Port Type
Operating Temperature Range
- Accuracy Value ±1.0% (5 psig/psia is ±1.5%
- Repeatability ±0.25% BSL
- Vibration ±20 g
- Shock 50 g
OMEGA’s PX309 Series Stainless Steel Pressure transducers below 100 psi use a high accuracy silicon sensor protected by an oil-filled stainless steel diaphragm. Units 100 psi and above use silicon strain gages molecularly bonded to the stainless steel diaphragm.
We provide a complete range of services—from product inception, through design and prototypes, to manufacturing and testing. Our application engineers work closely with our customers to customize, design or create entirely new products. Call us—whether you’re an OEM, manufacturer, or end user.
Link to Pressure Transducer Installation Article
The PX309 is also available in Metric configurations; please see the PXM309 for complete details, or contact our Pressure department for more information.
Common Specifications
Ranges: -15 to 50 psig, 0 to 1000 psia, 100 to 10,000 psig
Accuracy (Combined Linearity, Hysteresis and Repeatability): ±0.25% BSL, max
Minimum Resistance Between Transducer Body and Any Wire: 1M Ω @ 25 Vdc
Calibration: In vertical direction with fitting down,positive outputs only
Pressure Cycles: 10 million, minimum
Pressure Overload: -15 to 50 psig and 0 to 1000 psia: 3 times rated pressure or 20 psi whichever is greater, 100 to 10,000 psig: 2 times rated pressure
Burst Pressure: -15 to 50 psig and 0 to 1000 psia: 4 times rated pressure or 25 psi whichever is greater, 100 to 10,000 psig: 5 times rated pressure
Long Term Stability (1 Year): ±0.25% of FS, typical
Operating Temperature: -40 to 85°C (-40 to 185°F)
Pressure Port: ¼-18 MNPT
Pressure Port Material: -15 to 50 psig and 0 to 1000 psia: 316 SS, 100 to 10,000 psig: SS 316 or 17-4
0 to 500 psi: may contain HNBR o-ring in wetted pressure port assembly
Bandwidth: DC to 1 kHz (typical)
CE: Compliant
Shock: 50 g, 11 ms half-sine
Vibration: ±20 g
Response Time: <1 millisecond
Weight:
PX309: 154 g (5.4 oz)
PX319/329/359: 100 g (3.5 oz)
IP Rating: IP65
PLEASE REFER TO 'SPECS' FOR ADDITIONAL SPECIFICATIONS FOR EACH OUTPUT (mV, 0 to 5 Vdc and 4 to 20 mA)
We provide a complete range of services—from product inception, through design and prototypes, to manufacturing and testing. Our application engineers work closely with our customers to customize, design or create entirely new products. Call us—whether you’re an OEM, manufacturer, or end user.
Link to Pressure Transducer Installation Article
The PX309 is also available in Metric configurations; please see the PXM309 for complete details, or contact our Pressure department for more information.
Common Specifications
Ranges: -15 to 50 psig, 0 to 1000 psia, 100 to 10,000 psig
Accuracy (Combined Linearity, Hysteresis and Repeatability): ±0.25% BSL, max
Minimum Resistance Between Transducer Body and Any Wire: 1M Ω @ 25 Vdc
Calibration: In vertical direction with fitting down,positive outputs only
Pressure Cycles: 10 million, minimum
Pressure Overload: -15 to 50 psig and 0 to 1000 psia: 3 times rated pressure or 20 psi whichever is greater, 100 to 10,000 psig: 2 times rated pressure
Burst Pressure: -15 to 50 psig and 0 to 1000 psia: 4 times rated pressure or 25 psi whichever is greater, 100 to 10,000 psig: 5 times rated pressure
Long Term Stability (1 Year): ±0.25% of FS, typical
Operating Temperature: -40 to 85°C (-40 to 185°F)
Pressure Port: ¼-18 MNPT
Pressure Port Material: -15 to 50 psig and 0 to 1000 psia: 316 SS, 100 to 10,000 psig: SS 316 or 17-4
0 to 500 psi: may contain HNBR o-ring in wetted pressure port assembly
Bandwidth: DC to 1 kHz (typical)
CE: Compliant
Shock: 50 g, 11 ms half-sine
Vibration: ±20 g
Response Time: <1 millisecond
Weight:
PX309: 154 g (5.4 oz)
PX319/329/359: 100 g (3.5 oz)
IP Rating: IP65
PLEASE REFER TO 'SPECS' FOR ADDITIONAL SPECIFICATIONS FOR EACH OUTPUT (mV, 0 to 5 Vdc and 4 to 20 mA)
Rated 4 out of
5
by
under pressure from
compact and reliable
Have purchased several of these transducers over the last 10 years and do not recall ever having to replace one due to failure. I usually get the 319 series and my only complaint is that there is no key on the connector to simplify pin alignment. They are also offered a wide range of pressure ratings.
Date published: 2019-04-04
Rated 1 out of
5
by
Will L from
Untrustworthy calibrations
Faked calibration certificate (again). Claims to have been calibrated to 10,000psi using calibration equipment that will go to only 6,000psi
Date published: 2024-04-13
Rated 5 out of
5
by
R and D Testing from
Great product
Works as expected, delivery was quick minimal impact to operations
Date published: 2024-03-13
Rated 5 out of
5
by
Anonymous from
Fast Fast Fast Delivery
Item as described, fast delivery, Omega always delivers quality products.
Date published: 2024-02-19
Rated 5 out of
5
by
MikeA from
No issues
Works great second one we bought it works great for what we do
Date published: 2024-02-18
Rated 5 out of
5
by
JohnH from
Easy to use.
This pressure sensor works well and is easy to set up. The wide input voltage range made it easy to integrate with our data acquisition system and the 0-5V output is also easy to work with.
Date published: 2024-01-02
Rated 5 out of
5
by
Ari456 from
Quality product
The pressure transducer was constructed well to specs and was provided on time. It was a straightforward ordering process.
Date published: 2023-11-02
Rated 5 out of
5
by
Mohamed Kandil from
Good product
Good product for reasonable price and good quality
Date published: 2023-10-03
RoHS 2015/863 - View Certificate
CE Approved
UKCA
Does excitation voltage matter for using the calibration table? The current-pressure pairs given to me are done with 28 Vdc excitation, while I am using 12 Vdc to power the sensor. Would this be an issue for using the calibration?
Hello, thank you for contacting Omega Engineering. You should be able to use 9 to 30 Vdc to power the unit.
This will not affect your calibration data, you must still see the same output that matches the cal cert.
Date published: 2023-05-25
Hey, Our lab is currently using PX209-015A5V, and we are going to purchase the same one. But I just found the PX209 is not available, and I found PX309-015A5V, could you please tell me the difference between them? Thanks, Lei
The difference is the PX209 Series sensors wetted parts consist of stainless steel, borosilicate glass, silicon nitride & epoxy. The PX309 Series sensors wetted parts are all stainless steel. The PX309 would be the direct replacement for the PX209
Date published: 2024-03-18
Can it be exposed to vacuum? I'm going to measure the positive pressure inside a sealed box when it's filled with inert gas. But the box will also be pumped to vacuum sometimes (pressure will be measured by other gauges). Will this transducer be damaged?
Yes the PX309 Absolute reference can be used inside a vacuum chamber
Date published: 2019-11-20
What is the resolution of PX309-100G5V? I do not need the accuracy value which is 0.25%. I need the resolution. The smallest pressure change that can be detectable in the sensor and how much output voltage can vary for the smallest change.
Resolution really depends on how small of a signal change the instrument you are using to read the signal can resolve.
Date published: 2023-02-16
Is the PX309/329 series compatible with measuring air conditioning system refrigerant pressures (R134a)?
Yes it is. All wetted parts on the PX309 Series pressure transducers are either 17-4PH or 316 Stainless Steel
Date published: 2020-08-14
Would this unit be able to read water pressure up to the pressure ranges stated as long as the wiring and controls were kept waterproof?
Yes it would. The wetted parts of the process connection are all stainless steel. The pressure media can either be a gas or liquid as long as it's compatible with stainless steel. The body and cable of the sensor have an IP65 environmental rating so they can tolerate dust ingress and moderate water spray. The sensor would not handle complete submersion in water.
Date published: 2024-04-05
How do I I calibrate PX319-300A?
Thank you for reaching out to Omega with your question. The pressure transducer you have , has a 300 psia range with an analog output. Typically it will be 4-20 mA/ amplified voltage or mV/V. Typically you would use a pressure calibrator to simulate known pressures, in your case 0 psia at no load and 300 psia at full pressure then you will measure the analog output from the pressure transducer. The output will have to be trimmed so that it meets the 0.25 % FS accuracy specification listed on the specification sheet. (Note that this unit does not come with span/ zero adjustment pots)
We suggest sending the unit back to the factory for recalibration one year after installation of the unit. Thank you.
Date published: 2019-07-23
I have a PX309-050A5V Pressure Transducer that has a 2K ohm resistor between the Output(+) White wire and the Black wire. What would be the purpose of the resistor?
Thank you for your inquiry, The PX309-050A5V has a 0-5 volt output and there would be no reason to add or resistor across the output.
Date published: 2022-04-22
What is the current draw on the PX309 4-20mA output. The spec sheet lists 9-30Vdc excitation, not sure how much to limit the supply current.
The maximum current draw would be 24 mA
Date published: 2021-05-26
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