Omega's high accuracy piezoresistive pressure transducers have a
proven record in high performance commercial and
aerospace applications for over 25 years. The
piezoresistive process uses strain gages molecularly
embedded into a highly stable silicon wafer. The silicon
wafer is diced into individual die which each contain a
full strain gage bridge. The die is mounted in a sealed
chamber protected from the environment by glass to
metal seals and a stainless steel diaphragm.
A small volume of silicone oil transfers the pressure from
the diaphragm to the strain bridge. The construction
provides a very rugged transducer with exceptional
accuracy, stability and thermal effects. A unique design
ruggedizes the transducers by providing secondary fluid
containment in the event of a diaphragm rupture.
At our state-of-the-art facilities, automated test
equipment performs pressure and temperature cycling
on 100% of the PX409 transducers. The transducers
are then calibrated using extremely high accuracy
equipment and a 5-point NIST traceable calibration certificate is included with each transducer. The
inherent stability of the piezoresistive core provides
excellent long term stability, repeatability and very low
thermal effects at the price of much lower performance
transducers. Standard features of the PX409 Series
also include protective features built into the electronics
and the pressure element. Reverse polarity, EMC, and
power supply fluctuation protection are standard on all
models. For Intrinsically Safe and CSA ratings see PX519.
The most popular ranges and configurations are
stocked for immediate delivery. All others typically have
very short lead-time.
See the Part Number Builder below the Place Order table.
† All prices on this site are shown in Taiwan Dollars. Note: 5-Point NIST traceable calibration certificate included.
To order models with different electrical terminations, change model number to on of the following: PX409 = Cable Connection (featured in chart above) PX419 = mini-DIN Connection (mating connector provided) PX429 = Twist Lock Connector (mating connector sold separately)
EXTRA HIGH ACCURACY MODELS (available only on >5 psi models) For Extra High 0.05% Accuracy Models add suffix "-EH", add $100 For Extreme 0.03% Linearity Models add suffix "-XL", add $200 (Options are mutually exclusive)
Additional Ranges Available See Part Number Builder (below) for the full selection of pressure ranges Ordering Example: (1) PX419-1.0KGI 4 to 20 mA output, 1000 psi gage pressure range, mini-DIN connector, TWD21,955
Termination select from: PX409 for 2m(10') Cable PX409C for 2m(10') Cable w/ 1/2 NPT Conduit Fitting PX419 for Mini-DIN PX429 for Twist-Lock (mating connector sold separately) PX459 for M12 Connector (mating connector sold sepatately)
PSI Range - Not all ranges are available for every pressure type select from: -10W for 10 in-H2O (0.3 psi) -001 for 1psi -2.5 for 2.5psi -005 for 5psi -015 for 15psi -030 for 30psi -050 for 50psi -100 for 100psi -150 for 150psi -250 for 250psi -500 for 500psi -750 for 750psi -1.0K for 1000psi -1.5K for 1500psi -2.5K for 2500psi -3.5K for 3500psi -5.0K for 5000psi
Pressure Type select from: GV for mV/V Output Gage Pressure Ranges AV for mV Output Absolute Pressure Ranges G5V for 0 to 5 Vdc Output Gage Pressure Ranges G10V for 0 to 10 Vdc Output Gage Pressure Ranges A5V for 0 to 5 Vdc Output Absolute Pressure Ranges A10V for 0 to 10 Vdc Output Absolute Pressure Ranges GI for 4 to 20 mA Output Gage Pressure Ranges AI for 4 to 20 mA Output Absolute Pressure Ranges
Options (available only on models greater than 5 psi - these options are mutually exclusive) select from: for -EH for Extra High (0.05%) Accuracy add $100 -XL for Extreme (0.03%) Linearity add $200
Note: All combinations may not be valid, check spec sheet for valid part numbers.