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Configurable, High Accuracy Pressure Transducers
0 to 100 psi, Gauge, 4 to 20 mA, 1/4" NPT Male, MIL-26482-I 10-6P, (-49 to 240 °F)
Volume discounts available
Volume Discount Schedule
| Quantity | Price each |
|---|---|
| 1-9 | $872.93 |
| 10-24 | $829.28 |
| 25-49 | $811.82 |
| 50-99 | $776.91 |
| 100+ | $759.45 |
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PX429-100GI 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 or click the CONFIGURE button to build your own.
Pressure Range
Pressure Type
Accuracy Value(compensated range)
Output Signal
Electrical Output
Pressure Port Type
Connection/Termination
Operating Temperature Range
Additional Features
Accuracy Class
Pressure Port SIze
- Input Resistance 5000 Ω ±20% typical
- Output Resistance 5000 Ω ±20% typical
- Shock 50 g
- Repeatability ±0.08% BSL maximum
- Vibration 5-2000-5 Hz
- Wetted Materials 316L Stainless Steel
- Zero Balance ±0.5% FS typical 1% maximum (1% typical
- Accuracy Value 0.08% (compound ranges calibrated only in positive direction)
The Most Popular Ranges and Configurations are Stocked for Immediate Delivery.
OMEGA’S high accuracy PX409 Series Pressure Transducers have a proven record in high-performance commercial and aerospace applications for over 25 years. A full Wheatstone bridge is diffused into a silicon wafer and then micro-machined to exacting standards to produce a silicon sensor that has excellent stability, linearity, repeatability, and excellent long-term stability. At our state-of-the-art facilities, transducers are calibrated using extremely high accuracy equipment, and a 5-point NIST traceable calibration certificate is included with each model. All Stainless Steel wetted parts, welded construction and premium temperature compensation makes transducers suitable for use in tough industrial environments. OMEGA’s free downloadable Software provides advanced data logging capabilities hence add value and flexibility to your transducer performance.
Build/Order/Ship OMEGA’S MM Series Custom Pressure Transducers to meet your pressure sensing requirements: As a lead pressure transducer manufacturer, Omega has developed a new interactive configuration tool that provides a fast and simple way to build custom transducer suitable for application. MM Series custom transducers allow for over 1-million possible combinations of parameters such as pressure type, range, unit, material, output, accuracy, fitting, temperature compensation range, and electrical termination. At the end of the process, the Configurator will provide a part number, price and delivery time for the transducer. For more information about Configurator, Options Selection and FAQs.
SPECIFICATIONS
Specifications/Model | PX409 Series Standard Pressure Transducers | PX409 Series Hermetically Sealed Gauge (Imperial) | PX409 Series High Speed USB Output Transducers (Imperial/Metric) | PX409 Series RS485 Output Transmitters |
Accuracy | ±0.08% | ±0.08% | ±0.08% | ±0.08% |
Pressure Type | Gauge, Absolute | Sealed Gauge | Gauge, Absolute | Gauge, Absolute |
Output | 0 to 10 Vdc | 0 to 10 Vdc | Digital-USB | RS485 |
Electrical Terminations | Cable | Twist-Lock | Cable (Std USB Connector Termination) | M12 Connector |
Operating Temperature Range | -45 to 121 °C (-49 to 250 °F) or | -45 to 121 °C (-49 to 250 °F) or | -40 to 85 °C (-40 to 185 °F) | -40 to 85 °C (-40 to 185 °F) |
Key Features | 300% or 400% Proof Pressure | Hermetically Sealed for the Harsh Environments | 1000 Reading/Second | Up to 640 Readings/Second |
Data Sheets | PX409 Gauge-Absolute-Vac-CG-Barometric Pressure Transducers | PX409 Hermetically Sealed Gauge Pressure Transducers | PX409 High Speed USB Output Pressure Transducers | PX409-RS485 Output Pressure Transmitter |
* Extra High Accuracy (±0.05% or ±0.03%) Models Available
* Visit Accessories section for compatible Accessories
Some of the most Popular Applications of Pressure Transducers include:
What is the accuracy of the PX409 Series?
The PX409 Series has a high accuracy of ±0.08% BSL and includes linearity, hysteresis, and repeatability. To obtain their high accuracy and stability, the PX409 Series uses state-of-the-art digital mapping of the temperature, pressure, and output performance of the silicon sensor in conjunction with a custom ASIC to provide dynamic thermal compensation across the temperature and pressure parameters.
Is the PX409 Series suitable for any liquid and gas applications?
OMEGA piezoresistive pressure transducers have a proven record in high performance commercial and aerospace applications for over 25 years. The piezoresistive process and the construction of the PX409 Series provides a very rugged transducer with exceptional accuracy, stability, and thermal effects. The PX409 Series is all stainless steel (316 SS) wetted parts. Please ensure the media under measurement is compatible with wetted parts.
What is the power supply for the PX409 Series?
The power supply of the PX409 Series depends on the output of the chosen model and power supply fluctuation protection is standard on all models. Please refer to the table below for details.
| Output Model | Power Supply |
| 0 to 5 Vdc | 10 to 30 Vdc@10 mA |
| 0 to 10 Vdc | 15 to 30 Vdc@10 mA |
| 4 to 20 mA | 9 to 30 Vdc |
| 10 mV/V | Ratiometric 5 to 10 Volts DC |
Is the PX409 Series calibrated?
The Px409 Series are calibrated using extremely high accuracy equipment and a 5-point NIST traceable calibration certificate that is included with each transducer. It is recommended that the sensor be recalibrated once a year. The most popular ranges and configurations are stocked for immediate delivery. All others typically have a very short lead-time.
How can I install a PX409 Series in a pipe? Does it need a specific orientation (vertical or horizontal)?
The PX409 Series has a ¼ - 18 NPT male fitting that is threaded into a pipe fitting for installation. There is no specific orientation needed – the unit is calibrated in the vertical direction with fitting down. The sensor is designed to be quickly customized to meet your exacting specifications, often with fast delivery.
Rated 5 out of
5
by
Ted R from
Top notch
The quality of the signal and the precision are excellent. Also, the build quality is also very good.
Date published: 2023-02-24
Rated 5 out of
5
by
Anonymous from
Reliable sensors
Very liable sensor. Has been our standard design for decades
Date published: 2023-11-25
Rated 5 out of
5
by
Solingen from
Great piece of equipment.
Durable and reliable sensor. Arrived fairly quickly. A great choice when precise measurements are required.
Date published: 2023-09-18
Rated 5 out of
5
by
Sense from
Quick Delivery
Estimated restocking time of 4 weeks but got it in two! Excellent quality sensor
Date published: 2023-07-27
Rated 5 out of
5
by
John V from
High accuracy
High accuracy and easy to mount it into experimetn
Date published: 2023-05-01
Rated 5 out of
5
by
Jody from
Great Device
These are fully functional and very easy to set up and use.
Date published: 2023-04-20
Rated 5 out of
5
by
Matt F from
Exactly what I paid for!
Transducer is exactly what was expected. Packaging and documentation were perfect as well!
Date published: 2023-04-01
Rated 5 out of
5
by
Anonymous from
Quick shipping and great product
Awesome reliable product and shorter lead times than everyone else in the industry.
Date published: 2023-02-28
RoHS 2015/863 - View Certificate
CE Approved
UKCA
What is the resolution limit on this device? I'm interested in your 0-2 bar sensor and what the lowest pressure value it is able to measure accurately.
Resolution would depend on how small of a signal change the instrumentation used to read the 0 to 10VDC output can resolve. The sensor will read from 0 to 2 bar but the lower 10% of the range (0 to 0.2 bar) would end to be less accurate
Date published: 2022-03-01
Are the high accuracy transducers rated for use with hydrogen?
We do not recommended using our transducers in a hydrogen application due to embrittlement of the wetted parts when exposed to hydrogen
Date published: 2022-02-10
Hi, we have a PX409-16BI transmitter that we are developing a validation procedure for. Stated zero and span tolerances are +/- 0.5% FS typical with a +/- 1% FS maximum. Which should I use for validation? (BSL is not a validation tolerance)
You would use the +/- 1% FS max
Date published: 2020-06-12
When you say accuracy, are you referring to the resolution or the measurement, or the actual measurement accuracy? What are the respective values of each?
Thank you for contacting Omega. The PX409 is a full analog path sensor, meaning it's resolution is essentially infinite. The accuracy we specify details the uncertainty of the output. We specify the combined uncertainty contributed by non-linearity, repeatability, and histories.
Date published: 2019-02-12
I have to return a couple of these pressure sensors to a client overseas (UK). But before my company can ship them, we need to know the ECCN export number. Please supply the ECCN for these items... PXM419-070BA10V. Thank you.
Thank you for contacting Omega engineering, for export related question kindly send an email to exportcompliance@omega.com. Thank you.
Date published: 2019-11-23
I would like to purchase the Item# PX429-001GI, which shows a pressure range of 0-1 psi. How can I determine the resolution (ie x.xxxx psi) for the pressure reading that I will be able to get from the transducer?
This would depend on how small of a signal change the instrumentation you are using to read the signal can detect.
Date published: 2023-05-19
Are 2-D or 3-D CAD drawings available for the PX459-030AI pressure sensor?
There are no CAD drawings currently available for the PX459 pressure transducers
Date published: 2023-02-16
What is the average pressure drop across one of these transducers?
There is no pressure drop rating for this sensor.
Date published: 2023-06-13
What is the difference between the PX409-030AI-EH and PX409-030AI Models?
Maxx, the -EH models have a 0.05% BFSL static pressure accuracy, whereas the models without -EH will have a 0.08% BFSL accuracy.
Date published: 2023-10-11
I'm trying to locate the free software that accompanies this product, could you please provide the link?
Hello, and thanks for connecting with us. The software icon, for the free software download, is located in under the bullet points (before the Description copy) on the product page https://www.omega.com/pptst/PX409-485_PXM409-485.html
Please contact our Tech Support if have any further questions.
Date published: 2019-10-09
I have PX409-050A5V, what is the transfer function y=mx+b of Pressure vs Voltage output?
Thank you for your inquiry, the information you're requesting will be located on the certificate of calibration.
Date published: 2022-04-08
It says that this sensor is recommended to be calibrated once a year, is the calibration procedure included with the sensor, or is calibration handled by a third party organization?
Thank you for your inquiry, we do not include a calibration procedure, however we do offer calibration services.
Date published: 2021-12-09
I'm trying to locate the free software that is advertised for this product, could you please provide the link?
Thanks for being an Omega customer. The free software is available here for this product: ftp://ftp.omega.com/public/DASGroup/products/USBH/
Date published: 2021-10-25
I have a PX409-3.5KGUSBH model transducer that currently reads absolute pressure. Can I calibrate the transducer in house to read relative gauge pressure instead?
Thank you for your inquiry
While the construction of a gauge or absolute sensor is fundamentally different, in this case where your sensor has a range of 3,500 psi A is so large it should be fine. This issue is that an absolute sensor has no way to react to changes in atmospheric pressure like a gauge sensor does. The typical worst-case limits in atmospheric pressure changes (if you don't change your elevation) are between 13.5 – 15.0 psi, or about 1.5 psi, this is only (1.5/3500*100) = 0.04% FS change for the sensor, smaller than the error band! You can safely ignore atmospheric pressure changes for this device and offset your device to represent a gauge pressure reading.
hope this was helpful?
Date published: 2022-08-03
We have pressure transducer model number PX409-050A10V, for which we'd like to know its leakage specs and/or hermeticity rating... is that data available please?
Thank you for your inquire
Overpressure Absolute Pressure:
5 psia: 6 times span
2.5 psia to 1000 psia: 4 times span
1500 to 5000 psia: 10,000 psi
maximum
Secondary Containment
Gage/Diff/Vac/Compound:
10 inH2O to 5 psi: To 1000 psi
15 to 1000 psi: To 3000 psi
1500 to 5000 psi: To 10,000 ps
Date published: 2022-05-19
is the USB pressure sensor communication documented so it can be used with a language like LabVIEW? i would expect it shows up as a serial port and has a communication protocol to read values.
Thank you for your inquiry, Omega doesn’t support LabVIEW, but customers have told us they use our USBH sensors with LabVIEW : The easy-to-use ASCII data protocol of the USBH sensors can be handled with a standard LabVIEW VI like: Basic Serial Write and Read.vi. (While Omega gladly provides support for our .NET API, we cannot provide support for implementation as a part of LabVIEW). ). If you have any additional questions please contact our customer support department.
Date published: 2022-04-15
I thought the sensor will come with a USB plug cable, but it doesn't. How should I connect the cable to a USB plug? What kind of USB plug should I get for it?
There are two versions of the PX409 Pressure Transducers. One version as an analog output of millivolts, Voltage or Current. The other version has a high speed USB output. It appears you have the analog output version with would not have a USB connect on it. You would need to purchase a new PX409 with the part number ending in USBH. This unit has an attached cable with the USB connection on the end
Date published: 2021-05-07
Is there an interface document for available to guide customer developed software deisgn to interface with these sensors over a USB connection to a Linux microPC?
There is no documentation available to guide you in software design for this device.
Date published: 2023-04-05
Can these be used in helium systems?
All the parts of the PX409 series coming in contact with the media (wetted parts) are all 316 Stainless Steel. According to published chemical compatibility charts 316 SS is compatible with Helium
Date published: 2023-03-31
The PX409 spec sheet has a temp. comp. range of -29 to 85°C. It has a graph that shows the thermal affect in the compensated range. The thermal affect is greater than the accuracy of 0.08%. How must thermal affect be factored into the accuracy?
Thank you for your inquiry. Please contact us directly at pressure@omega.com or 1-800-826-6342 to discuss this question.
Date published: 2023-03-07
What is the HSN (Harmonized System Nomenclature) code for the PX409-015CGUSBH and PX409-015GUSBH sensors?
Thank you for your inquiry, please contact us directly to obtain the HSN number
Date published: 2022-10-14
Do you have documentation that describes the serial commands for the RS-485 interface (or the modbus registers)?
Thank you for your inquiry, we do offer a quick start manual for the RS485 sensors. This document can be found in the product manual section of our website ( PX409-485 and PXM409-485) if you require additional information please contact one of our Pressure engineers
Date published: 2022-08-19
Hello, we need to measure up to 20 Bar pressure absolute. You offer a 17.5 Bar and 30 Bar option. Would the 17.5 Bar sensor report up to 20 Bar, and without causing damage?
Hello, Thank you for contacting Omega Engineering. If you want to measure 20 bar absolute you should not use the 17.5 Bar absolute unit, you may damage the diaphragm. Please go with the 30 bar absolute model. Thank you.
Date published: 2019-10-11
What is the ambient storage temperature of this device? Is it the same or similar to the operating temperature?
These units have been tested to withstand an operating temperature of -49 to 240 Fahrenheit but not for prolonged periods. We do not have data on how the sensor will be affected if you store these transducers under those extreme conditions for longer periods of time.
Date published: 2023-10-11
What is the weight for part# PX459-100GI
Thank you for your inquiry, this unit weighs less than 2 pounds
Date published: 2022-11-01
I need to get accuracy and range on this. Can you please help
The three available accuracy ranges these sensors are 0.03%,0.05% & 0.08%. Accuracy is based on the full scale range of the sensor. Available pressure ranges from a low range of 0 to 10"wc up to 0 to 7500 PSI
Date published: 2019-11-21
I'm trying to locate the free software that is advertised for this product, could you please provide the link?
Thanks for your question. The free software is available here for this product: ftp://ftp.omega.com/public/DASGroup/products/USBH/
Date published: 2022-02-01
What do you recommend if we exceed the proof pressure of 300%? Is the equipment still good to use? Would you recommend recalibration?
Avoid exceeding the proof pressure rating of the sensor. You will damage the sensing diaphragm of the unit. It will most not be calibratable once damage
Date published: 2021-02-09
I am trying to locate the system requirements for the software.
The system requirements are: An up-to-date Windows 7, SP1; .NET Framework 4.5.2 (part of Microsoft’s automatic updates); USB 2.0 port. (USB 3 also works). Please contact our Tech Support if you need any further assistance.
Date published: 2019-05-06
Would the 0 to 350 mbar range transducer be accurate enough to read a 1/10 of a mbar? We are mostly interested in looking at absolute pressures ~1/10 to 10 mbar.
Accuracy specification for this unit is 0.08%. This means your allowable error for the 0 to 350mbar range unit would be +/- 0.28 mbar. This would not be accurate enough for your requirement.
Date published: 2019-11-21
ACCESSORIES
The M12 connectors can be attached to existing sensor or extension cables with a 6 to 8 mm cable diameter in the field by means of screw type connections
$40.62
199 In Stock
5 m (16') PVC cable, straight 4-pin M12 female connector one end, flying leads one end, for all PX359 absolute range and gage ranges >100 psi
$24.66
53 In Stock
M12 Extension Cable, 4 Wire PVC Cable, Right Angled Socket Connector One End and Flying Leads the Other, 5 meters long
$24.66
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