Dwyer Instruments A-420A Pressure Sensor
The Dwyer A-420A Outside Static Pressure Sensor is a ruggedized static pressure pickup port designed to provide stable, accurate reference pressure readings in outdoor environments. Engineered with a NEMA 4X housing, this sensor is built to withstand extreme weather conditions while eliminating the erratic pressure fluctuations typically caused by wind gusts. For contractors performing building automation system (BAS) integrations, the A-420A is a critical component for differential pressure monitoring, ensuring that outside air pressure references remain consistent for precise building pressurization control. The unit features a parabolic wind shield that effectively dampens wind-induced noise, allowing your low pressure transducers to maintain accurate signals. With its flange mounting and 1/4" barb connection, this static pressure probe simplifies installation on rooftops or exterior walls, providing a reliable atmospheric pressure reference for commercial HVACR applications.
Key Benefits for Technicians- NEMA 4X Environmental Protection: Constructed from durable materials to resist corrosion and moisture infiltration in harsh climates.
- Integrated Wind Shield: Minimizes turbulence and "surging" to ensure stable static pressure readings regardless of wind velocity.
- Versatile Compatibility: Fits standard 1/4" tubing, making it compatible with most Dwyer differential pressure transmitters and magnehelic gauges.
- Simplified Installation: The flange-mounted design allows for quick attachment to any exterior vertical surface.
How does this unit prevent moisture from entering the sensing line?
The angled design and protective housing act as a moisture trap, preventing rain or condensation from traveling down the pneumatic tubing to the transducer.
Where is the best location to mount the A-420A for accurate building pressure?
Mount the sensor on the side of the building least affected by prevailing winds, typically away from exhaust fans or intake louvers, to get the most accurate ambient pressure reference.
Can this be used with digital DDC systems?
Yes, as long as the DDC system utilizes a standard differential pressure sensor that accepts a pneumatic input, the A-420A serves as the high or low-side reference point.
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: $44.26
-65%$44.26
$15.49Dwyer Instruments A-420A Pressure Sensor
The Dwyer A-420A Outside Static Pressure Sensor is a ruggedized static pressure pickup port designed to provide stable, accurate reference pressure readings in outdoor environments. Engineered with a NEMA 4X housing, this sensor is built to withstand extreme weather conditions while eliminating the erratic pressure fluctuations typically caused by wind gusts. For contractors performing building automation system (BAS) integrations, the A-420A is a critical component for differential pressure monitoring, ensuring that outside air pressure references remain consistent for precise building pressurization control. The unit features a parabolic wind shield that effectively dampens wind-induced noise, allowing your low pressure transducers to maintain accurate signals. With its flange mounting and 1/4" barb connection, this static pressure probe simplifies installation on rooftops or exterior walls, providing a reliable atmospheric pressure reference for commercial HVACR applications.
Key Benefits for Technicians- NEMA 4X Environmental Protection: Constructed from durable materials to resist corrosion and moisture infiltration in harsh climates.
- Integrated Wind Shield: Minimizes turbulence and "surging" to ensure stable static pressure readings regardless of wind velocity.
- Versatile Compatibility: Fits standard 1/4" tubing, making it compatible with most Dwyer differential pressure transmitters and magnehelic gauges.
- Simplified Installation: The flange-mounted design allows for quick attachment to any exterior vertical surface.
How does this unit prevent moisture from entering the sensing line?
The angled design and protective housing act as a moisture trap, preventing rain or condensation from traveling down the pneumatic tubing to the transducer.
Where is the best location to mount the A-420A for accurate building pressure?
Mount the sensor on the side of the building least affected by prevailing winds, typically away from exhaust fans or intake louvers, to get the most accurate ambient pressure reference.
Can this be used with digital DDC systems?
Yes, as long as the DDC system utilizes a standard differential pressure sensor that accepts a pneumatic input, the A-420A serves as the high or low-side reference point.
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 Dwyer A-420A Outside Static Pressure Sensor is a ruggedized static pressure pickup port designed to provide stable, accurate reference pressure readings in outdoor environments. Engineered with a NEMA 4X housing, this sensor is built to withstand extreme weather conditions while eliminating the erratic pressure fluctuations typically caused by wind gusts. For contractors performing building automation system (BAS) integrations, the A-420A is a critical component for differential pressure monitoring, ensuring that outside air pressure references remain consistent for precise building pressurization control. The unit features a parabolic wind shield that effectively dampens wind-induced noise, allowing your low pressure transducers to maintain accurate signals. With its flange mounting and 1/4" barb connection, this static pressure probe simplifies installation on rooftops or exterior walls, providing a reliable atmospheric pressure reference for commercial HVACR applications.
Key Benefits for Technicians- NEMA 4X Environmental Protection: Constructed from durable materials to resist corrosion and moisture infiltration in harsh climates.
- Integrated Wind Shield: Minimizes turbulence and "surging" to ensure stable static pressure readings regardless of wind velocity.
- Versatile Compatibility: Fits standard 1/4" tubing, making it compatible with most Dwyer differential pressure transmitters and magnehelic gauges.
- Simplified Installation: The flange-mounted design allows for quick attachment to any exterior vertical surface.
How does this unit prevent moisture from entering the sensing line?
The angled design and protective housing act as a moisture trap, preventing rain or condensation from traveling down the pneumatic tubing to the transducer.
Where is the best location to mount the A-420A for accurate building pressure?
Mount the sensor on the side of the building least affected by prevailing winds, typically away from exhaust fans or intake louvers, to get the most accurate ambient pressure reference.
Can this be used with digital DDC systems?
Yes, as long as the DDC system utilizes a standard differential pressure sensor that accepts a pneumatic input, the A-420A serves as the high or low-side reference point.
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.
