PX165

Supported Applications

The Omega PX165 series consists of compact, differential pressure transducers designed for measuring low differential pressure in non-corrosive dry gases only. The device utilizes a micro-machined silicon capacitive sensor paired with an application-specific integrated circuit (ASIC) to provide calibration and temperature compensation.

Operating Conditions & Performance

The PX165 series is factory-calibrated in the vertical position; mounting the unit horizontally can cause a zero shift of up to 1% of F.S. The transducer requires a regulated power supply between 4.5 and 5.5 VDC. When powered with a 5VDC supply voltage, it delivers a ratiometric output signal ranging from 0.5 to 4.5 VDC.

Specific performance metrics such as accuracy class, repeatability, hysteresis, response time, and burst pressure are not specified in the available documentation for this series. The rated overpressure capability is noted but no specific value is provided.

Configuration Options

The PX165 series offers multiple measurement ranges indicated by model suffixes (e.g., 0.10, 0.25, 0.50, 0.75, 001, 002, 005, 010, 015, 020). The series supports the following configuration options:

• Process Connection: Barbed connection accepting 1/8" O.D. and 1/16" I.D. tubing.
• Electrical Connector: JST SM03(4.0)B-BHS-1-TB transducer connector with a mating JST BHR-03VS-1 connector.
• Cabling Options: Optional wiring harness featuring 15.75" 24 AWG leads and the mating JST BHR-03VS-1 connector.
• Wiring Configuration: Three-wire system with White (OUT), Black (COM), and Red (V+) conductors.

The transducer dimensions are 1.18 in (30 mm) length, 1.02 in (26 mm) width, and 0.37 in (9 mm) height. The overall height including the connector is 1.50 to 1.65 inches.

Key Product Differences

Variants within the PX165 series are distinguished by their specific differential pressure ranges, denoted in model numbers such as PX165-0.10B or PX165-020U. The documentation does not specify distinct differences between 'B' and 'U' suffixes regarding performance or construction beyond the part number designation.

Important operational constraints include warnings against use in human applications, exposure to excessive overpressure, vibration, pressure pulsation, instrument temperature extremes, corrosion of pressure-containing parts, or static electrical charges. The warranty is void if evidence shows tampering, excessive corrosion, current/heat/moisture/vibration damage, improper specification, misapplication, misuse, or operating conditions outside Omega's control.