Setra 2641R25WD11T1C Pressure Transducer

The Setra 2641R25WD11T1C is an industry-standard low differential pressure transducer designed for precision air flow monitoring and building automation. This model features a unidirectional pressure range of 0 to 0.25" WC, specifically engineered for critical environments where subtle pressure changes are vital for system performance. Utilizing Setra's patented capacitive sensing technology, the unit employs a stainless steel micro-tig welded sensor that ensures exceptional long-term stability and resistance to overpressure up to 10 PSI. The 4 to 20 mA output signal provides a reliable linear interface for HVAC/R systems and energy management controllers. Built with a fire-retardant case and terminal strip electrical connections, this transducer is optimized for fast installation on snap tracks or flat surfaces. Technical accuracy is maintained at ±1% Full Scale, making it a dependable choice for VAV control, laboratory fume hoods, and cleanroom pressurization where maintaining a precise pressure boundary is a non-negotiable requirement for contractors.

• High Sensitivity Measurement: Optimized for ultra-low static pressure monitoring in air-handling units and critical ductwork.
• Robust Overpressure Protection: Features a 10 PSI overpressure rating, protecting the internal diaphragm from damage during system startup or duct blips.
• Simplified Wiring: The terminal strip design and 2-wire 4-20 mA configuration reduce field labor and troubleshooting time for technicians.
• Field-Proven Reliability: Stainless steel sensing element minimizes thermal shift and maintains calibration in fluctuating ambient temperatures.

Is the Setra 2641R25WD11T1C suitable for liquid media?
No, this transducer is specifically designed for dry air or non-conductive gases. Using it with liquids will cause permanent damage to the capacitive sensor.

What is the purpose of the unidirectional range on this model?
The unidirectional 0 to 0.25" WC range is used when pressure is expected to flow only in one direction, such as monitoring filter status or maintaining positive room pressure relative to a corridor.

Can I use an unregulated DC power supply with this transducer?
Yes, the 264 series includes internal regulation that allows it to operate effectively on unregulated DC power supplies (typically 9 to 30 VDC), providing flexibility in various building automation architectures.

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.