OMEGA’s PX309 Series Stainless Steal 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.
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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: 17-4 PH SS 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
under pressure from
compact and reliableHave 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.
Does this unit come calibrated? Or is there an option to get calibration performed?
Asked by: Test Engineer
Hello, All the PX309 models, including this model comes calibrated with a 5 point NIST traceable cal cert. Price is included in the cost of unit.
Answered by: SAE DVJ
Date published: 2019-12-10
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?
Asked by: wanglikun08
Yes the PX309 Absolute reference can be used inside a vacuum chamber
Answered by: JKengineer
Date published: 2019-11-20
Can this transducer be used with a 24Vdc power supply?
Asked by: nrebers
Thank you for contacting Omega Engineering with your question. The PX309 series transducers are available several different output types and not all of them can operate on 24 Vdc. If the model in questions has a 0-5 Vdc, 0-10 Vdc, or 4-20 mA output then yes, they can operate on 24 volts. If it is one with a millivolt output, then the excitation voltage would be 5 or 10 Vdc depending on the pressure range. Please feel free to contact us again if you have any other questions.
Answered by: engineer rf
Date published: 2019-11-19
How do I I calibrate PX319-300A?
Asked by: Brad125
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.
Answered by: SAE DVJ
Date published: 2019-07-23
Can the 50 PSIa model read water pressure? or air only?
Asked by: Craig
Thank you for your question?
This is a all stainless steel unit.
It can handle liquids or gas that are compatible with this material.
Answered by: application engineer je
Date published: 2019-07-15
Does the twist lock connector version come with the mating connector?
Asked by: Shane
Thank you for reaching out to Omega with your question. The mating connector is not included and will need to be purchased separately. If you need any further assistance, please reach out to our Tech Support.