OMEGA’s PX409 Series high accuracy vacuum transducers have a uni-directional output that measures gage vacuum, negative gage pressure. Ambient pressure = 0 and output increases as pressure decreases below ambient. The transducers have all stainless steel wetted parts and welded construction and premium temperature compensation which makes them suitable for use in tough industrial environments. Vacuum models measure negative gage pressure with increasing output for increasing negative pressure. Ranges are from 0 to -10 inH2O to 0 to -15 psi with uni-directional outputs of 10 mV/V, 0 to 5 Vdc and 4 to 20 mA (ambient set at 4 mA).
SPECIFICATIONS Output: Millivolt: 0 to 10 mV/V for vacuum, ±10 mV/V for compound Amplified Voltage: 0 to 5 Vdc for vacuum, ±5 Vdc for compound Current Loop: 4 to 20 mA (12 mA at 0 psig on compound ranges) Power Requirements: Millivolt: 5 to 10 Vdc (2 mA @ 10 Vdc) Amplified Voltage: 10 to 30 Vdc @ 10 mA Current Loop: 9 to 30 Vdc [max loop res = [(Vs-9) x 50] [9 to 20 Vdc above 105°C (229°F)] Accuracy (Combined Linearity, Hysteresis and Repeatability): ±0.08% BSL max Zero Balance: ±0.5% FS typical 1% max (1% typical, 2% max for ranges 1 psi and below) Span Setting: ±0.5% FS typical 1% max (1% typical, 2% max for ranges 1 psi and below) calibrated in vertical direction with fitting down Operating Temperature Range: -45 to 121°C (-49 to 250°F) [-45 to 115°C (-49 to 240°F) for voltage or current outputs] Compensated Temperature: Ranges >5 psi: -29 to 85°C (-20 to 185°F) Ranges ≤5 psi: -17 to 85°C (0 to 185°F) Thermal Effects Zero (@ 0 psig Over Compensated Range): Ranges >5 psi: ±0.5% span Ranges ≤5 psi: ±1.0% span Thermal Effects Span (Over Compensated Range): Ranges >5 psi: ±0.5% span Ranges ≤5 psi: ±1.0% span Long Term Stability (1-Year): ±0.1% FS typical Shock: 50 g, 11 ms half sine vertical and horizontal axis Vibration: 5-2000-5 Hz 30 minute cycle, Curve L Mil-Spec 810 figure 514-2-2, horizontal and vertical axis Response Time: <1 ms Bandwidth: DC to 1 kHz typical Proof Pressure (positive direction): 10 inH2O: 10 times full scale 1 psi: 6 times full scale 2.5 psi and Higher: 4 times full scale (Negative direction 4 times or 1 atmosphere whichever is greater) Burst Pressure: 10 inH2O to 15 psi: 1000 psi Electrical Termination: PX409: Integral 2 m (6') cable PX419: mini-DIN PX429: Twist lock PX459: M12 Connector Mating Connectors: PX419: CX5302 (included) PX429: PT06F10-6S (sold separately) Environmental Protection: PX409: IP67 PX419 and PX429: IP65 Wetted Parts: 316 SS Pressure Port: ¼-18 NPT male Calibration: Comes with 5 point calibration certificate (positive readings only for compound ranges) Weight: 115 to 200 g (4 to 7 oz) depending upon configuration