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General Purpose, Stainless Steel Pressure Transducers
0 to 1,000 psi, Gauge, 4 to 20 mA, Cable
Volume discounts available
Volume Discount Schedule
| Quantity | Price each |
|---|---|
| 1-9 | $389.23 |
| 10-24 | $369.77 |
| 25-49 | $361.98 |
| 50-99 | $346.41 |
| 100+ | $338.63 |
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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
PX309-1KGI 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 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 2 out of
5
by
H3rb3rt from
Word of Caution
The product performance was great, but there is a major design flaw. The cable connection option has the cable connected to the body by a nut that if loosened and taken off will break the unit. Whereas the PX409 series differential transducer instead does not have this problem, it has a sealed connection that doesn't allow you to break the unit so easily.
The reason I was attempting to take the nut off in the first place was because it was loose and the unit was dunked under water for cleaning so I was trying to make sure the unit would dry out fully before supplying power to the transducer.
Date published: 2021-04-16
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 5 out of
5
by
USCshan from
Great and reliable product for Universities
Reliable pressure transducer that works great and is easy to install.
Date published: 2024-11-19
Rated 5 out of
5
by
Tom Dineen from
0psi to 5,000psi transducer
These work great on all of our drill rigs. They're heavy duty enough to work in our harsh environment and still read like new.
Date published: 2024-11-18
Rated 5 out of
5
by
jdakgl from
Transducer works great!
This transducer works great! I have quite of few of these and have always been pleased.
Date published: 2024-11-18
Rated 5 out of
5
by
Anonymous from
Dependable, reliable, and easy to use.
Dependable, reliable, and easy to use. We use on engine Testcells.
Date published: 2024-11-14
Rated 5 out of
5
by
Kpellet from
Availability is great!
Product is always available when I need to place an order. This is super important to us when we have continued issues going on at our facility.
Date published: 2024-11-14
RoHS 2015/863 - View Certificate
CE Approved
UKCA
Where can I find the transfer function for a PX309-100A10V? Is it included in the calibration documentation or do I have to generate it myself?
I am reading voltages off the sensor and using custom software to output a pressure. where do i find the equation that converts the sensor output voltage to pressure?
Date published: 2024-11-04
Is there a manual for installing and programming the PX309-5KG5V? I tried accessing the ftp.omega.com site, but it wasn't working. There also isn't a user manual on the product site. I am trying to connect it to a Arduino Uno and a 12V battery.
The PX309-5KG5V is simply an analog output sensor generating a 0 to 5VDC signal over it's 0 to 5000 PSI pressure range. There is no programming necessary and there is no manual. A wiring is available on both the specification sheet on our website and the calibration report that is shipped with the unit. This is a 3 wire device and wiring is as follows. Red wire should connect to the positive(+) side of our 12V battery. Black wire should connected to both the negative (-) side of your 12V battery and the negative (-) or low input of your readout device. White wire should connect to the positive (+) or high input of your readout device. We would have not have any info on how specifically you would connect this to a Arduino Uno
Date published: 2022-11-04
What is the maximum load that can be used in series with the PX309-1KA (4-20mA output)?
Thank you for your inquire.
over pressure 0 to 1000 psia: 3 times rated
Burst Pressure
0 to 1000 psia: 4 times rated pressure
Date published: 2022-06-14
For the absolute pressure gauge, where the backside of the diaphragm is vented to?
Thank you for your inquiry, on a absolute pressure sensor the backside of the diaphragm is sealed.
Date published: 2021-12-03
For the Gauge Type pressure sensor, does it relative the current atmospheric pressure, or a preset one? Thank you! Best, Renjing
Thank you for your inquiry, on a PSIG sensor the backside of the diaphragm is vented to atmospheric pressure.
Date published: 2021-12-03
Does Omega PX309 read above the +15 PSI maximum pressure with less accuracy or the15 PSI is the maximum positive pressure that can read? and what will happen if my sample produces more pressure than the specified limit, is that going to damage the sensor?
Thank you for your inquiry, the PX309 15PSI has a Pressure Overload rating of 3 times rated pressure. The accuracy of the unit is based on zero to full scale, we do not guarantee specifications over the rated pressure.
Date published: 2022-09-09
Are there any limitations for using the PX309 series transmitters under constant exposure to hydrogen gas (pressures up to 3k psi)? (hydrogen embrittlement specifically) Thank you.
The PX309 should not be used to measure hydrogen. Embrittlement will occur.
Date published: 2020-10-09
How do I know if my PX359-500A5V contains HNBR o-ring in the wetted pressure port assembly?
We have several suppliers for the 0 to 500 psi sensing element used in the PX309 Series pressure transducer. One of them inadvertently supplied elements with the HNBR O-ring. Unfortunately there no way to identify which units were built use this element without physically cutting unit open the unit which would basically destroy it.
Date published: 2024-07-11
5 m (16') vented cable with M12 connector for PX359 for gage ranges <500 psi
$150.37
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Accessories
2 m (6') vented cable with M12 connector for PX359 for gage ranges <500 psi
$104.64
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5 Meter extension cable, PVC jacket with 4-pin M12 female connector
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