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Call us at 1-888-826-6342.

High (0.08%) Accuracy Metric Pressure Transducers

Item# PXM409

High (0.08%) Accuracy Metric Pressure Transducers PXM409 PXM409
  • 5-Point Agency Traceable Calibration Included
  • Metric Pressure Ranges
  • G 1/4 Thread Standard
  • 0 to 100 mV, 0 to 10 Vdc, or 4 to 20 mA Outputs

  • Accuracy Value % span shift over compensated temperature range
  • Input Resistance 5000 Ω ±20%
  • Maximum Compensation Temperature -29°C (-20°F)
  • Minimum Compensation Temperature -29°C (-20°F)
  • Output Resistance 5000 Ω ±20%
  • Vibration 5-2000-5 Hz 30 minute cycle
  • Shock 50 g
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..

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;
   25 to 350 mB: to 70 bar
   1 to 70 bar: to 200 bar
   100 to 350 bar: to 700 bar
   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.
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