The wet/dry transducers from OMEGA are rugged stainless steel transducers that are suitable for automotive, industrial, or aerospace applications where only a single side of the transducer is exposed to wet media. These transducers provide the excellent performance characteristics of the Micro-Machined Silicon Series Transducers at a lower price than the wet/wet models.
They can be used in filter monitoring, factory, test benches, air flow or pneumatic air, pitot tubes, air speed and other aerospace or industrial application requiring a very robust wet/dry transducer. The solid state silicon core offers long, reliable service life with superior long term stability.
- Five-point traceable calibration
- 316 L SS wetted parts on wet side– clean dry gases on dry side
- Wide compensated temperature range
- Low drift, high stability
- Welded stainless steel construction
- Premium temperature performance
- Durable, one million cycle life
- Precision micro-machined silicon core
- Customized specifications available
- Ruggedized with secondary containment
- Also available with M12 connector (PX459)
Common Specifications
The common specifications of the wet/dry transducers are as follows:
- Minimum resistance between transducer body and any wire: 100 MΩ
- Long term stability (1-year): ±0.1% FS typical
- Accuracy: 0.08% BSL linearity, repeatability and hysteresis combined
- Compensated temperature range:
- 10 in H2O to 5 psi: -17 to 85 °C (1 to 185 °F)
- 15 to 1000 psi: -29 to 85 °C (-20 to 185 °F)
- Pressure cycles: 1 million minimum
- Operating temperature:
- mV/V and 5 to 10 Vdc output: -45 to 121 °C (-49 to 250 °F)
- mA output: -45 to 115 °C (-49 to 239 °F)
- Response time: <1 ms
- Thermal accuracy:
% Span shift over compensated temperature range
- 10 in H2O to 5 psi: Zero - ±1.00%; Span - ±1.00%
- 15 to 1000 psi: Zero - ±0.50%; Span - ±0.50%
- Bandwidth: DC to 1 kHz typical
- Media compatibility:
- Positive side: All fluids and gases compatible with 316L SS
- Negative side: Dry, clean, non-ionic gases
- Shock: 50 g, 11 ms, half-sine, vertical and horizontal axis
- Pressure ports: ¼NPT male
- CE complient: Meets EN61326-1: 2006 for industrial locations
- Vibration: 5-2000-5 Hz 30 minute cycle, curve L Mil-Spec 810 figure 514-2-2, horizontal and vertical axis
- Proof pressure (differential):
- 10 in H2O range = 10 times range
- 1 psi range = 6 times range
- 2.5 to 750 psi ranges = 4 times range
- 1000 psi range = 3 times range
- Line/static pressure: 500 psi max applied to both sides simultaneously
- Hi side containment pressure (differential):
- Ranges 10 in H2O to 5 psi: to 1000 psi
- Ranges 15 to 1000 psi: to 3000 psi
- Weight: 200 g (7 oz) max
- Electrical terminations:
- PX409: 2 m (6') cable
- PX409C: 2 m (6') cable with ½ NPT conduit thread
- PX419: Mini-DIN (includes mating connector)
- PX429: Twist-lock, mating connector (sold separately)
- PX459: M12 connector, mating connector (sold separately)
- Mating connector for PX429: PT06F10-6S
Uni-Directional mV/V Specifications
The uni-directional mV/V specifications of the wet/dry transducers are as follows:
- Current draw: 5 mA @ 10 Vdc
- Output: 10 mV/V ratiometric
- Span setting:
- Ranges ≤ 2.5 psi: ±1% typ (2% maximum)
- Ranges > 2.5 psi: ±0.5% typ (1% maximum)
- Supply voltage: 5 to 10 Vdc
- Zero balance:
- Ranges ≤ 2.5 psi: ±1% typ (2% maximum)
- Ranges > 2.5 psi: ±0.5% typ (1% maximum)
- Input impedance: 1000 to 5000 Ω
- Output impedance: 5000 Ω ±10% typical
Uni-Directional Voltage Output Specifications
The uni-directional voltage output specifications of the wet/dry transducers are as follows:
- Current draw: 10 mA max
- Output impedance: 100 Ω
- Output voltage/supply voltage: 0 to 5 Vdc/ 10 to 30 Vdc; 0 to 10 Vdc/15 to 30 Vdc (change "5V" to "10V" in model number)
- Zero balance:
- Ranges > 2.5 psi: ±0.5% typ (1% maximum)
- Ranges ≤ 2.5 psi: ±1% typ (2% maximum)
- Maximum current output: 2 mA (= 2500 Ω min load resistance)
- Span setting:
- Ranges > 2.5 psi: ±0.5% typ (1% maximum)
- Ranges ≤ 2.5 psi: ±1% typ (2% maximum)
Uni-Directional mA Specifications
The uni-directional mA specifications of the wet/dry transducers are as follows:
- Supply voltage: 9 to 30 Vdc; [9 to 20 Vdc above 105 °C (229 °F)]
- Output: 4 to 20 mA
- Zero balance:
- Ranges > 2.5 psi: ±0.5% typ (1% maximum)
- Ranges ≤ 2.5 psi: ±1% typ (2% maximum)
- Maximum loop resistance: (Vs-9) x 50 Ω
- Span setting:
- Ranges > 2.5 psi: ±0.5% typ (1% maximum)
- Ranges ≤ 2.5 psi: ±1% typ (2% maximum)
Four Termination Styles
The following are the four termination styles available with wet/dry transducers:
- PX409 = 2 m (6ft) cable
- PX419 = mini-DIN connector
- PX429 = Twist-lock connector
- PX459 = M12 connector