Johnson Controls DPT2640-0R5D Pressure Transducer

The Johnson Controls DPT2640-0R5D is a specialized very low differential pressure transducer designed for precision air monitoring in critical environments. Built with a 0 to 0.5" WC input range, this unit is a standard for contractors managing cleanrooms, laboratory exhaust, and hospital isolation rooms where maintaining tight static pressure differentials is non-negotiable. It features a reliable 0-5 VDC output, making it compatible with a wide array of building automation systems (BAS) and field controllers. With an accuracy of ?0.5%, it minimizes drift and ensures high-fidelity readings across a broad operating temperature range of 0?F to 175?F. This SETRA-based sensing technology utilizes a stainless steel diaphragm and a variable capacitance sensor to maintain stability even at the bottom of the scale. Whether you are balancing an HVAC system or calibrating laboratory airflow, this low pressure sensor provides the industrial-grade durability and signal integrity required for mission-critical air pressure measurement.

Key Benefits for Contractors

• Precision Airflow Monitoring: The ?0.5% accuracy rating ensures precise control in static pressure applications, reducing the risk of air imbalances in sensitive zones.
• Broad System Compatibility: The standard 0-5 VDC output allows for seamless integration with legacy and modern Johnson Controls systems as well as third-party HVAC controllers.
• Industrial Durability: Capable of withstanding environments from 0?F to 175?F, ensuring consistent performance in unconditioned mechanical rooms or high-heat plenums.
• Fast Installation: Compact housing and clear terminal labeling streamline field wiring and mounting, reducing labor time on the job site.

Common Questions

What is the primary application for a 0.5" WC range transducer?
This specific range is ideal for low differential pressure measurement in cleanrooms, filter status monitoring, and VAV box control where high sensitivity to minor air pressure changes is required.

Can the DPT2640-0R5D handle temperature fluctuations?
Yes, it is engineered for stable operation within an operating temperature of 0?F to 175?F, though it is recommended for use in non-condensing environments to ensure sensor longevity.

Is the 0-5 VDC signal adjustable?
The Johnson Controls DPT2640-0R5D provides a fixed linear 0-5 VDC output relative to the 0-0.5" WC pressure range, allowing for straightforward scaling within your controller?s software.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.