DP140X25U31C Johnson Controls Differential Pressure Transducer

Overview

The Johnson Controls DP140X25U31C is a low differential pressure transducer designed for precise and reliable air pressure measurement in demanding commercial HVAC and building automation systems. It senses differential or gauge static pressure in air and nonconducting gases, converting it into a stable analog voltage output signal. Utilizing trusted dead-ended capacitive sensing technology, it requires minimal amplification and ensures long-term operational stability.

Features

• Premium dead-ended capacitive sensing element for exceptional accuracy and long-term stability
• Fire-retardant enclosure (UL 94 V-0 approved) for enhanced safety
• Reverse wiring protection and internal regulation to reduce installation risks
• Compact footprint with integral mounting tabs that lower overall installation costs
• Gasket-sealed, robust IP67-rated housing making the unit wash-down capable

Specifications

• Pressure Range: 0 to 0.25 inches Water Column (W.C.)
• Configuration: Unidirectional
• Output Type: 0 VDC to 10 VDC
• Excitation: 24 VDC or 24 VAC
• Accuracy: ±1% Full Scale (FS) standard
• Pressure Fittings: 3/16 inch O.D. barbed brass fittings for 1/4 inch push-on tubing
• Electrical Connection: 1/2 inch threaded conduit opening with a screw terminal strip
• Operating Temperature: 0°F to 150°F (-18°C to 65°C)
• Compatibility: Suitable for use with air or nonconducting gases only

Applications

• Commercial HVAC systems
• Air flow stations
• Variable Air Volume (VAV) systems or fan control
• Filter status monitoring
• Static duct and cleanroom pressure management