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 model PXM509.
The most popular ranges and configurations are
stocked for immediate delivery. All others typically have
very short lead-time.
The PXM409 is also available in standard/imperial configurations, with NPT ports, and models from 0-10 inH2O to 0-5,000 psi pressure ranges.
Please see the PX409 for complete details, or contact our Pressure department for more information..
SPECIFICATIONS Accuracy: Standard ±0.08% FS, BSL, Linearity, Hysteresis and Repeatability Combined (compound ranges calibrated only in positive direction) Operating Temperature: mV/V Output: -45 to 121°C (-49 to 250°F) Amplified Output: -45 to 115°C (-49 to 239°F) Compensated Temperature Range: 25 to 350 mB: -18 to 85°C (0 to 185°F) 1 to 350 bar: -29 to 85°C (-20 to 185°F) Thermal Accuracy: % span shift over compensated temperature range 25 to 350 mB: Zero: ±1.0% max Span: ±1.0% max 1 to 350 bar: Zero: ±0.50% max Span: ±0.50% max ROHS Compliant
Minimum Isolation Between Case and Terminations: 100 MΩ @ 50 Vdc Pressure Cycles: 1 million, minimum Long Term Stability (1-Year): ±0.1% FS typical Shock: 50 g, 11 ms half sine shock, Vertical and Horizontal Vibration: 5-2000-5 Hz 30 minute cycle, Curve L, Mil Spec 810 figure 514-2-2, Vertical and Horizontal Bandwidth: DC to 1 kHz typical Response Time: <1 ms CE Compliant: Industrial Level Emissions: IEC550022 Class B Electrostatic Discharge Immunity: IEC1000-4-2 EM Field Immunity: IEC61000-4-3 EFT Immunity: IEC61000-4-4 Surge Immunity: IEC61000-4-5 Conducted RF: IEC610000-4-6 Rate Power Frequency Magnetic Field: IEC61000-4-8 Environmental Protection: PXM409: IP67 PXM419: IP65 gauge, IP67 Abs PXM459: IP65 gauge, IP67 Abs Proof Pressure Gauge/Vac/Compound: 25 mB: 10 times span 70 mB: 6 times span 170 mB to 100 bar: 4 times span 175 to 350 bar to 500 bar max Proof Pressure Absolute: 350 mB to 100 bar: 4 times span 175 to 350 bar: to 500 bar max Secondary Containment; Gauge/Vac/Compound: 25 to 350 mB: to 70 bar 1 to 70 bar: to 200 bar 100 to 350 bar: to 700 bar Absolute/Barometric: 350 mB: to 70 bar 1 to 70 bar (includes barometric ranges): to 200 bar 100 to 350 bar: to 700 bar Wetted Parts: 316L SS Electrical Terminations PXM409: 2 m (6.6') cable PXM419: mini DIN with mating connector PXM459: M12 4-pin Pressure Port: G1/4 Weight: 115 to 200 gm depending upon configuration Electrical Outputs: mV/V Output: Output: 10 mV/V ratiometric Supply Voltage: 5 to 10 Vdc (5 mA @ 10 Vdc) Zero Balance: Ranges > 170 mB: ±0.5% typ. (1% max) Ranges ≤ 170 mB: ±1% typ. (2% max) Span Setting: Ranges > 170 mB: ±0.5% typ. (1% max) Ranges ≤ 170 mB: ±1% typ. (2% max) Input/Outut Resistance: 5000 Ω ±20% Voltage Output:
Output: 0 to 10 Vdc Supply Voltage:15 to 30 Vdc @ 10 mA (±10 Vdc or compound) Zero Balance: Ranges > 170 mB: ±0.5% typ. (1% max) Ranges ≤ 170 mB: ±1% typ. (2% max) Span Setting: Ranges > 170 mB: ±0.5% typ. (1% max) Ranges ≤ 170 mB: ±1% typ. (2% max) Current Output: Output: 4 to 20 mA (zero pressure = 12 mA on compound ranges) Supply Voltage: 9 to 30 Vdc (9 to 20 Vdc above 105°C) max loop resistance = (Vs-9) x 50 O Zero Balance: Ranges > 170 mB: ±0.5% typ. (1% max) Ranges ≤ 170 mB: ±1% typ. (2% max) Span Setting: Ranges > 170 mB: ±0.5% typ. (1% max) Ranges ≤ 170 mB: ±1% typ. (2% max)
The table below features models with 10 mV/V ratiometric outputs.
To order 4-20 mA output change the suffix "V" to an "I"
To order 0-10 Vdc output change the suffix "V" to an "10V"
Or see the Part Number Builder below the table to order all models.
† All amounts shown in USD Note: All models come with a NIST traceable calibraton certificate. Ordering Example: (1) PXM409-007BGV 0.08% accuracy, G 1/4 Th'd, 7 bar range, 10 mV/V output, cable termination, $475.00
Part Number Builder
Build Your Part Number Below
Electrical Termination select from: 0 for 2m cable 1 for mini DIN 5 for M12 4-pin male connector
bar Range - Not all ranges are available for every pressure type select from: 025H for 25 mbar 070H for 70 mbar 170H for 170 mbar 350H for 350 mbar 1100H for 0 to 1100 mbar (barometric models only) 550H for 550 to 1100 mbar (barometric models only) 880H for 880 to 1100 mbar (barometric models only) 001B for 1 bar 002B for 2 bar 3.5B for 3.5 bar 007B for 7 bar 010B for 10 bar 17.5B for 17.5 bar 035B for 35 bar 050B for 50 bar 070B for 70 bar 100B for 100 bar 175B for 175 bar 245B for 245 bar 350B for 350 bar
Pressure Type select from: G for Gauge A for Absolute V for Vacuum CG for Compound Gauge B for Barometric
Output select from: V for 10 mV/V 10V for 0 to 10 Vdc I for 4 to 20 mA
Note: All combinations may not be valid, check spec sheet for valid part numbers.