Accuracy Value% span shift over compensated temperature range
Input Resistance5000 Ω ±20%
Maximum Compensation Temperature-29°C (-20°F)
Minimum Compensation Temperature-29°C (-20°F)
Output Resistance5000 Ω ±20%
Vibration5-2000-5 Hz 30 minute cycle
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: 10 mV/V ratiometric Supply Voltage: 5 to 10 Vdc (5 mA @ 10 Vdc) Input/Output Resistance: 5000 Ω ±20% Voltage Output: 0 to 10 Vdc Supply Voltage: 15 to 30 Vdc @ 10 mA (±10 Vdc or compound) Current 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 Ω For ALL Electrical Outputs: 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.