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General Purpose, Stainless Steel Pressure Transducers

0 to 100 psi, Gauge, 4 to 20 mA, Cable

$269.75

Item# PX309-100GI

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $269.75
5-9 $256.26
10-24 $250.87
25-49 $240.08
50-99 $234.68
100+ $229.29

In stock

Lead Time ( If not in Stock): 4 weeks

0 to 100 psi, Gauge, 4 to 20 mA, Cable PX309-100GI PX309-100GI
0 to 100 psi, Gauge, 4 to 20 mA, Cable is rated 4.7 out of 5 by 3.
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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
  • High Stability, Low Drift
  • 0.25% Static Accuracy
  • IP65 Protection Class

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Pressure Range
Pressure Type
Accuracy Class
Accuracy Value (compensated range)
Output Signal
Electrical Output
Pressure Port Size
Pressure Port Type
Connection/Termination
Operating Temperature Range
Additional Features


Product Specs

  • 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: 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 5 by 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 from Pressure feedback without breaking the bank Over the years I have purchased a number of these PX309-100GI transducers. I am using them at a nursery where they control the speed of 15HP submersible well pumps driven by Vacon VFD's. Pretty well fail safe. on this last one we added a snubber to hopefully extend the life of the transducer given the location.
Date published: 2020-04-22
Rated 5 out of 5 by from Good value transducer I have used many of these transducers and found them a good value. It makes it easy to purchase them and Omega gives a fast delivery. When I need a replacement, I can get them within days.
Date published: 2020-04-09
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I have the PX359-015A10V pressure transducer (0-15 psia, 0-10V output). I am wondering if the 0.25% accuracy, that is given on the specification sheet, means that the accuracy is 0.25% of the full scale?

Asked by: JoeyH9000
Yes the 0.25% accuracy is of the full scale range of the sensor.
Answered by: JKengineer
Date published: 2020-11-23

If I need to measure pressures at 0.05 psia, what pressure transducer would you recommend? Note that I need to make pressure measurements in a vacuum chamber.

Asked by: JoeyH9000
thank you for your inquiry. The smallest range and most accurate absolute pressure pressure range unit we offer is the PX409-005A10V. This has an accuracy of 0.08%. We do not offer a 0 to 1 PSIA range in the PX309 or PX409 Series sensors.
Answered by: JKengineer
Date published: 2020-11-20

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.

Asked by: alphaTech
What would be an alternative transmitter to use that is compatible with H2? Thanks.
Answered by: alphaTech
Date published: 2020-10-09

Are FPW-15 or PSR-24 recommended as excitation sources for PX3093KG5V transmitter?

Asked by: alphaTech
Yes, The PX309 will run on any DC voltage between 9 and 30 VDC so either supply will work.
Answered by: JKengineer
Date published: 2020-10-02

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.

Asked by: nbosio1001
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
Answered by: JKengineer
Date published: 2020-08-15

Is the PX309/329 series compatible with measuring air conditioning system refrigerant pressures (R134a)?

Asked by: TEng1
Yes it is. All wetted parts on the PX309 Series pressure transducers are either 17-4PH or 316 Stainless Steel
Answered by: JKengineer
Date published: 2020-08-14

Is the PX309-150GI compatible to read liquid Anhydrous Ammonia (NH3) ??

Asked by: Refrigeration
The wetted parts of the PX309-150GI are all 17-4 PH Stainless Steel. Corrosion Resistant Charts indicate it has an excellent &quot;A&quot; rating for use with Anhydrous Ammonia.
Answered by: JKengineer
Date published: 2020-08-08

What is the difference between a compound gauge and absolute gauge?

Asked by: jackie270
The compound gauge are measuring a vacuum or positive pressure relative to the atmospheric pressure. The unit has a vent to atmosphere for the reference. The absolute gauge units measure pressure relative to an internal sealed vacuum reference.
Answered by: JKengineer
Date published: 2020-07-07
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