
Setra 2641R25WB11A1C Pressure Transducer
The Setra 2641R25WB11A1C is the industry-standard low differential pressure transducer for critical HVAC monitoring. Built for veteran contractors who demand long-term stability in building automation, this model features a ±0.25" WC bidirectional pressure range with a high-level 4 to 20 mA output. The core technology leverages an all-stainless steel micro-tig welded capacitive sensing element, engineered to provide ±1% FS accuracy even in environments with variable air volume or fan control requirements. The 1/2 inch conduit enclosure provides a robust, fire-retardant (UL 94 V-0) housing that simplifies field installation in cleanrooms or pharmaceutical facilities.
For technicians integrating this unit into Energy Management Systems, the rugged internal regulation permits the use of unregulated DC power supplies. The tensioned stainless steel diaphragm resists damage from overpressure (up to 10 PSI) and is thermally matched to minimize drift. This sensor is specifically calibrated for bidirectional air pressure measurement, making it ideal for monitoring static pressure in VAV systems and ensuring proper building pressurization. The modular design with brass barbed fittings ensures a secure pneumatic connection for 3/16 inch I.D. tubing, maintaining high-accuracy differential pressure readings across your critical infrastructure.
Key Benefits- Precise Bi-Directional Sensing: Monitors both positive and negative pressure within the ±0.25 inch water column range for superior air flow control.
- Industrial-Grade Reliability: Features a dead-ended capacitive sensing element designed for minimal signal amplification and maximum life cycles.
- Simplified Installation: Equipped with a 1/2 inch conduit electrical termination and reverse wiring protection to prevent field errors.
- Broad Compatibility: The standard 4-20mA pressure transmitter output integrates seamlessly with most Building Automation Systems.
How do I troubleshoot a zero-output signal on this device?
Verify the 24 VDC power supply polarity at the terminals. Using a multimeter, confirm the loop current is between 3.84 mA and 4.16 mA at zero pressure. If the signal remains at 0 mA, check for loop breaks or inadequate excitation voltage.
Can this transducer be mounted in any orientation?
While the 264 series is rugged, it is factory-calibrated in the vertical position. Mounting it horizontally may shift the zero-point due to the mass of the diaphragm; always perform a zero-adjustment after final installation to ensure ±1% accuracy.
What happens if the system experiences a temporary overpressure?
The Setra 2641R25WB11A1C is designed to withstand overpressure up to 10 PSI without physical damage, though persistent high-pressure events may necessitate a recalibration to maintain specific technical specifications.
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.
Original: $228.97
-65%$228.97
$80.14Setra 2641R25WB11A1C Pressure Transducer
The Setra 2641R25WB11A1C is the industry-standard low differential pressure transducer for critical HVAC monitoring. Built for veteran contractors who demand long-term stability in building automation, this model features a ±0.25" WC bidirectional pressure range with a high-level 4 to 20 mA output. The core technology leverages an all-stainless steel micro-tig welded capacitive sensing element, engineered to provide ±1% FS accuracy even in environments with variable air volume or fan control requirements. The 1/2 inch conduit enclosure provides a robust, fire-retardant (UL 94 V-0) housing that simplifies field installation in cleanrooms or pharmaceutical facilities.
For technicians integrating this unit into Energy Management Systems, the rugged internal regulation permits the use of unregulated DC power supplies. The tensioned stainless steel diaphragm resists damage from overpressure (up to 10 PSI) and is thermally matched to minimize drift. This sensor is specifically calibrated for bidirectional air pressure measurement, making it ideal for monitoring static pressure in VAV systems and ensuring proper building pressurization. The modular design with brass barbed fittings ensures a secure pneumatic connection for 3/16 inch I.D. tubing, maintaining high-accuracy differential pressure readings across your critical infrastructure.
Key Benefits- Precise Bi-Directional Sensing: Monitors both positive and negative pressure within the ±0.25 inch water column range for superior air flow control.
- Industrial-Grade Reliability: Features a dead-ended capacitive sensing element designed for minimal signal amplification and maximum life cycles.
- Simplified Installation: Equipped with a 1/2 inch conduit electrical termination and reverse wiring protection to prevent field errors.
- Broad Compatibility: The standard 4-20mA pressure transmitter output integrates seamlessly with most Building Automation Systems.
How do I troubleshoot a zero-output signal on this device?
Verify the 24 VDC power supply polarity at the terminals. Using a multimeter, confirm the loop current is between 3.84 mA and 4.16 mA at zero pressure. If the signal remains at 0 mA, check for loop breaks or inadequate excitation voltage.
Can this transducer be mounted in any orientation?
While the 264 series is rugged, it is factory-calibrated in the vertical position. Mounting it horizontally may shift the zero-point due to the mass of the diaphragm; always perform a zero-adjustment after final installation to ensure ±1% accuracy.
What happens if the system experiences a temporary overpressure?
The Setra 2641R25WB11A1C is designed to withstand overpressure up to 10 PSI without physical damage, though persistent high-pressure events may necessitate a recalibration to maintain specific technical specifications.
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.
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Description
The Setra 2641R25WB11A1C is the industry-standard low differential pressure transducer for critical HVAC monitoring. Built for veteran contractors who demand long-term stability in building automation, this model features a ±0.25" WC bidirectional pressure range with a high-level 4 to 20 mA output. The core technology leverages an all-stainless steel micro-tig welded capacitive sensing element, engineered to provide ±1% FS accuracy even in environments with variable air volume or fan control requirements. The 1/2 inch conduit enclosure provides a robust, fire-retardant (UL 94 V-0) housing that simplifies field installation in cleanrooms or pharmaceutical facilities.
For technicians integrating this unit into Energy Management Systems, the rugged internal regulation permits the use of unregulated DC power supplies. The tensioned stainless steel diaphragm resists damage from overpressure (up to 10 PSI) and is thermally matched to minimize drift. This sensor is specifically calibrated for bidirectional air pressure measurement, making it ideal for monitoring static pressure in VAV systems and ensuring proper building pressurization. The modular design with brass barbed fittings ensures a secure pneumatic connection for 3/16 inch I.D. tubing, maintaining high-accuracy differential pressure readings across your critical infrastructure.
Key Benefits- Precise Bi-Directional Sensing: Monitors both positive and negative pressure within the ±0.25 inch water column range for superior air flow control.
- Industrial-Grade Reliability: Features a dead-ended capacitive sensing element designed for minimal signal amplification and maximum life cycles.
- Simplified Installation: Equipped with a 1/2 inch conduit electrical termination and reverse wiring protection to prevent field errors.
- Broad Compatibility: The standard 4-20mA pressure transmitter output integrates seamlessly with most Building Automation Systems.
How do I troubleshoot a zero-output signal on this device?
Verify the 24 VDC power supply polarity at the terminals. Using a multimeter, confirm the loop current is between 3.84 mA and 4.16 mA at zero pressure. If the signal remains at 0 mA, check for loop breaks or inadequate excitation voltage.
Can this transducer be mounted in any orientation?
While the 264 series is rugged, it is factory-calibrated in the vertical position. Mounting it horizontally may shift the zero-point due to the mass of the diaphragm; always perform a zero-adjustment after final installation to ensure ±1% accuracy.
What happens if the system experiences a temporary overpressure?
The Setra 2641R25WB11A1C is designed to withstand overpressure up to 10 PSI without physical damage, though persistent high-pressure events may necessitate a recalibration to maintain specific technical specifications.
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.












