Overview
The Johnson Controls DP140025U21D is a precision low differential pressure transducer designed for demanding HVAC and building automation systems. It features a dead-ended capacitive sensing element to deliver reliable and accurate pressure measurements over a 0 to 25 inches water column unidirectional range, providing a standard 4-20 mA output signal.
Features
- High reliability with minimal amplification needed
- Dead-ended capacitive sensing technology
- Cost-saving installation with integral mounting tabs
- Excellent price-to-performance ratio
- Durable construction with reverse wiring protection
Specifications
- Pressure Range: 0 to 25 inches W.C.
- Pressure Type: Unidirectional (low differential)
- Output Signal: 4 mA to 20 mA analog output
- Accuracy Option: Full scale accuracy of ±0.5%
- Housing Rating: IP67-rated enclosure (wash-down capable)
- Process Connection: 1/4 inch push-on barb fitting
- Electrical Termination: Screw terminal strip and 1/2 inch conduit fitting
Applications
- Commercial and industrial HVAC system monitoring
- Duct static pressure monitoring
- Air filter differential pressure measurement and filter status
- Cleanroom and laboratory pressure control
- Airflow measurement stations, variable air volume (VAV), and fan control


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