OMEGA’s PX309 Series Stainless Steel Pressure transducers below 100 psi use a high accuracy silicon sensor protected by an oil-filled stainless steel diaphragm. Units 100 psi and above use silicon strain gages molecularly bonded to the stainless steel diaphragm.
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Link to Pressure Transducer Installation Article
The PX309 is also available in Metric configurations; please see the PXM309 for complete details, or contact our Pressure department for more information.
-15 to 50 psig, 0 to 1000 psia, 100 to 10,000 psig
Accuracy (Combined Linearity, Hysteresis and Repeatability):
±0.25% BSL, max
Minimum Resistance Between Transducer Body and Any Wire:
1M Ω @ 25 Vdc
In vertical direction with fitting down,positive outputs only
10 million, minimum
-15 to 50 psig and 0 to 1000 psia: 3 times rated pressure or 20 psi whichever is greater, 100 to 10,000 psig: 2 times rated pressure
-15 to 50 psig and 0 to 1000 psia: 4 times rated pressure or 25 psi whichever is greater, 100 to 10,000 psig: 5 times rated pressure
Long Term Stability (1 Year):
±0.25% of FS, typical
-40 to 85°C (-40 to 185°F)
Pressure Port Material:
-15 to 50 psig and 0 to 1000 psia: 316 SS, 100 to 10,000 psig: SS 316 or 17-4
0 to 500 psi: may contain HNBR o-ring in wetted pressure port assembly
DC to 1 kHz (typical)
50 g, 11 ms half-sine
154 g (5.4 oz)
100 g (3.5 oz)
PLEASE REFER TO 'SPECS' FOR ADDITIONAL SPECIFICATIONS FOR EACH OUTPUT (mV, 0 to 5 Vdc and 4 to 20 mA)