DP140001U21D Johnson Controls Differential Pressure Transducer

Overview

The Johnson Controls DP140001U21D is a high-performance low differential pressure transducer designed for precise air pressure measurement in commercial HVAC and building automation environments. It senses differential or gauge static pressure in air and non-conducting gases, converting the measurement into a stable analog output signal. Utilizing a premium dead-ended capacitive sensing element, the unit requires minimal amplification and ensures long-term reliability and operational efficiency.

Features

• Premium dead-ended capacitive sensing technology requiring minimal amplification
• Cost-saving installation with integral mounting tabs and accessible face-located pressure connections
• Robust IP67-rated housing sealed with a gasket for wash-down capability
• Integrated reverse wiring protection and internal regulation to prevent board damage
• Fire-retardant case approved to UL 94 V-0 standards

Specifications

• Pressure Range: 0 to 1 in. W.C.
• Configuration: Unidirectional
• Output Signal: 4 mA to 20 mA
• Accuracy: ±0.5% Full Scale (FS)
• Excitation: 24 VDC or 24 VAC
• Enclosure Rating: IP67 wash-down capable
• Electrical Connection: 1/2-inch conduit fitting

Applications

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