Pressure / Vacuum Adapter (PS-403) For Digital Multimeters

Lutron Pressure / Vacuum Adapter (PS-403) For use with a Digital Multimeter

The Lutron PS-403 is a high-accuracy pressure and vacuum adapter designed for industrial, laboratory, and field measurement applications. It connects to any compatible meter with high-impedance input and provides a precise DC mV output proportional to pressure or vacuum. With multiple selectable engineering units, rugged stainless-steel wetted parts, and broad measurement capability, the PS-403 is suitable for testing hydraulic systems, pneumatics, HVAC systems, industrial gases, compatible liquids, and vacuum lines.

• Wide measurement capability: Measures pressure and vacuum in psi, kPa, cm-Hg, and in-Hg.
• Direct mV output: Linear 1 mV per 1 unit (psi, kPa, cm-Hg, in-Hg).
• High accuracy: Multiple accuracy classes depending on pressure range for precise diagnostics.
• Stainless-steel pressure sensor: Compatible with many industrial liquids and gases.
• Zero adjustment: Front-panel potentiometer for calibration trimming.
• Designed for laboratory and field use: Stable readings with low power consumption.
• Compatible with any meter: Works with meters featuring 10 MΩ input impedance.

Specifications

• Pressure Ranges: psi: 0.5 to 500 psi. kPa: 3.447 to 3447 kPa. in-Hg (vacuum): 0 to 29.99 in-Hg. cm-Hg (vacuum): 0 to 76 cm-Hg.
• Accuracy: kPa 3.5 to 1724: ± (1 percent plus 3.5 kPa). kPa 1725 to 2413: ± (2 percent plus 3.5 kPa). kPa 2414 to 3447: ± (5 percent plus 3.5 kPa). psi 0.5 to 250: ± (1 percent plus 0.5 psi). psi 251 to 350: ± (2 percent plus 0.5 psi). psi 351 to 500: ± (5 percent plus 0.5 psi). cm-Hg 0 to 76: ± (5 percent plus 1.3 cm-Hg). in-Hg 0 to 29.99: ± (1 percent plus 0.5 in-Hg).
• Output Scaling: kPa: 1 mV per 1 kPa. psi: 1 mV per 1 psi. cm-Hg: 1 mV per 1 cm-Hg. in-Hg: 1 mV per 1 in-Hg.
• Zero Adjustment: Front-panel potentiometer.
• Pressure Port Connector: 1/4" PS.
• Required Meter Input Impedance: 10 MΩ. If the meter is 1 MΩ, add 0.5 percent to accuracy specification.
• Max Working Pressure: 500 psi.
• Temperature Coefficient: 1 percent of span from 0°C to 50°C.
• Operating Temperature and Humidity: −10°C to 10°C: 0 to 90 percent RH. 11°C to 30°C: 0 to 90 percent RH. 31°C to 40°C: 0 to 75 percent RH. 41°C to 50°C: 0 to 45 percent RH.
• Media Compatibility: Compatible with industrial gases and liquids suitable for 316 stainless steel. Users must verify compatibility to avoid contamination or damage.
• Power Supply: One standard 9 V battery (006P, 6F22, NEDA 1604).
• Power Consumption: Approx. 1.2 mA DC.
• Dimensions: Main instrument: 100 × 50 × 25 mm (3.9" × 2.0" × 1.0"). Pressure sensor: 55 mm length × 30 mm diameter (2.17" × 1.18").
• Cable Length: Approx. 1 meter (3.3").
• Weight: 285 g (0.63 lb) including pressure sensor.

Accessories Included

• Operation manual.
• 500 psi pressure transducer.

Optional Components

• Additional stainless-steel compatible transducers.
• Protective carrying case.
• Meters with 10 MΩ input impedance for optimal accuracy.