Omega’s PXM309 Series industrial pressure transducers utilize two of our precision manufacturing techniques. Low pressure ranges from 70 mb to 3.5 bar, and absolute ranges to 20 bar use a precision micromachined silicon sensor protected by a stainless steel diaphragm. A thin film of oil transfers the pressure and assures the high accuracy and stability of the sensor. Medium and high gage pressure ranges, from 7 bar up to 700 bar, use precision semiconductor strain gages that are fused directly to the stainless steel diaphragm yielding a rugged, durable bond that assures long life and high stability. These precision techniques produce an accuracy of 0.25% FS BSL @25°C and a total error band of 1% on most ranges. The PXM309 Series transducers are available in absolute, or gage (relative) pressure and are sealed to an IP65 environmental rating.
The PXM309 is also available in Imperial configurations; please see the PX309 for complete details, or contact our Pressure department for more information.
SPECIFICATIONS Supply Voltage Reverse polarity and over voltage protected 0 to 10 Vdc Output: 15 to 30 Vdc at 10 mA 4 to 20 mA: 9 to 30 Vdc Static Accuracy 350 mB to 700 bar: ±0.25% FS BSL at 25°C (includes linearity, hysteresis and repeatability) Long Term Stability (1 yr): ±0.25% FS Total Error Band* 70 mB ±4.5% gage 140 mB ±3% gage 350 mB ±1.5% gage and absolute 1 to 20 bar ±1% absolute 1 to 700 bar ±1% gage Note*: Total error band includes all accuracy errors, thermal errors, span and zero tolerances. Isolation (Body to Any Lead): 1 M Ω at 25 Vdc Pressure Cycles: 1 x 107 full scale cycles Pressure Overload 70 mB to 3.5 bar Gage: 3 x rated pressure or 1.38 bar whichever is greater 350 mB to 20 bar Absolute: 3 x rated pressure or 1.38 bar whichever is greater 7 to 700 bar Gage: 2 x rated pressure Burst Pressure 70 mB to 3.5 bar Gage: 5 x rated pressure or 1.72 bar whichever is greater 350 mB to 20 bar Absolute: 5 x rated pressure or 1.72 bar whichever is greater 7 to 700 bar Gage: 5 x rated pressure Compensated Temperature 70 to 350 mbar Gage/Abs: 0 to 50°C (32 to 122°F) 1 to 700 bar Gage: -20 to 85°C (-4 to 185°F) 1 to 20 bar Absolute: -20 to 85°C (-4 to 185°F) Operating Temperature: -40 to 85°C (-40 to 185°F) Response Time: 1 mS Bandwidth: DC to 1 kHz type Pressure Connection: G ¼ Male Wetted Parts 70 mB to 3.5 bar Gage: 316 SS 350 mB to 20 bar Absolute: 316 SS 7 to 700 bar Gage: 17-4PH SS CE Compliant: EC55022, EC55011 Emissions Class A&B IEC: 61000-2,-3,-4,-5,-6,&-9 Shock: 50 g 11 mSec half sine shock Vibration: ± 20 g Electrical Connections PXM309: 1.5 m (5') 2 or 3-conductor cable, mA or 10V outputs, respectively PXM319: mini DIN connector with mating connector included PXM359: M12 4-pin connector Weight: Typical 150 g (5.3 oz) depending upon configuration