Setra 2651R25WBABT1C Pressure Transducer

The Setra 2651R25WBABT1C is a professional-grade low differential pressure transducer engineered for high-accuracy sensing in critical air-delivery environments. Built with a ±0.25" WC bidirectional pressure range, this unit is essential for monitoring both positive and negative pressures in VAV (Variable Air Volume) systems, cleanrooms, and sophisticated HVAC ductwork. It utilizes Setra’s signature capacitive sensing element and a micro-tig welded stainless steel design to provide unmatched long-term stability and resistance to environmental stress.

This model features a ±1% Full Scale (FS) accuracy and is designed for seamless integration with existing building automation systems via 24 VAC citation and a linear 0 to 5 VDC output. The industrial terminal strip electrical connection simplifies field wiring for technicians, while the UL 94 V-0 fire-retardant case ensures compliance in plenum-rated installations. Designed for inert dry air media, the 2651R25WBABT1C maintains precise calibration even in demanding environmental pollution control or static pressure monitoring applications.

Key Benefits for Contactors:

• Dead-Ended Capacitive Sensor: Proprietary stainless steel technology requires minimal amplification and ensures high field acceptance in rugged industrial applications.
• Bidirectional Versatility: The ±0.25 in. W.C. range allows for accurate measurement of fluctuating pressures in building envelopes and pressurized zones.
• Simplified Wiring: Features a standard terminal strip and reverse wiring protection to prevent circuit damage during field installation.
• Broad System Compatibility: The 0 to 5 VDC signal is a standard interface for most HVAC energy management systems.
• Plenum-Rated Durability: Housed in a compact, fire-retardant enclosure suitable for space-constrained mounting within ductwork or control panels.

Common Technical Questions:

Can I use this sensor with unregulated power supplies?
Yes, the 265 series includes internal regulation that permits operation with unregulated DC power within the specified voltage range without compromising 1% FS accuracy.

What is the overpressure tolerance for this model?
The micro-tig welded tension sensor is designed to handle up to 10 PSI proof pressure without damaging the internal diaphragm, though accuracy is optimized within the ±0.25" WC range.

Is this unit suitable for outdoor air sensing?
While the 2651R25WBABT1C is ideal for static duct pressure and cleanroom monitoring, ensure the media is restricted to inert, dry air to prevent moisture accumulation on the capacitive plates.

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.