Dwyer Instruments PAFS-1003 Sensor
The Dwyer Instruments PAFS-1003 is a high-precision averaging flow sensor engineered for contractors who require accurate velocity pressure readings within VAV terminal units and fan terminal boxes. Featuring a 5 13/32" insertion length, this probe utilizes an "H" port for total pressure and an "L" port for static pressure, providing a clear differential signal for building automation systems. Built with durable ABS/polycarbonate wetted materials, it is rated for air and compatible gases in environments ranging from 40 to 120°F. The PAFS-1003 integrates seamlessly into existing setups with its 1/4" I.D. and 3/8" O.D. tubing process connection and an integral mounting flange with gasket suitable for both round and rectangular ducts. As a veteran-grade HVAC airflow measurement tool, this sensor ensures consistent zone control and differential pressure monitoring in duct branches. Use this as a reliable duct mount sensor for any HVAC retrofit or new VAV unit installation where performance is non-negotiable.
Key Benefits- Accurate Velocity Measurement: Provides the precise differential pressure needed to calculate real-time airflow in variable air volume systems.
- Robust Construction: Manufactured from UL94-5V rated ABS/polycarbonate for long-term reliability in clean air and inert gas applications.
- Versatile Mounting: The included mounting flange with gasket simplifies installation on a variety of duct geometries without additional brackets.
- Standardized Connections: Compatible with common 1/4" I.D. / 3/8" O.D. tubing, ensuring a leak-free fit with standard differential pressure transmitters.
- Does this sensor come with a specific K-factor? Yes, the PAFS-1003 has an approximate K-factor of 1.39, which acts as a direct multiplier for calculating actual velocity from measured velocity.
- What is the proper mounting orientation for this probe? For the 5 13/32" length, horizontal mounting is recommended to ensure the most accurate velocity pressure readings across the sensing points.
- Can this be used in high-temperature exhaust ducts? No, this unit is designed for standard HVAC applications with a maximum operating limit of 120°F (49°C).
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: $16.21
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Description
The Dwyer Instruments PAFS-1003 is a high-precision averaging flow sensor engineered for contractors who require accurate velocity pressure readings within VAV terminal units and fan terminal boxes. Featuring a 5 13/32" insertion length, this probe utilizes an "H" port for total pressure and an "L" port for static pressure, providing a clear differential signal for building automation systems. Built with durable ABS/polycarbonate wetted materials, it is rated for air and compatible gases in environments ranging from 40 to 120°F. The PAFS-1003 integrates seamlessly into existing setups with its 1/4" I.D. and 3/8" O.D. tubing process connection and an integral mounting flange with gasket suitable for both round and rectangular ducts. As a veteran-grade HVAC airflow measurement tool, this sensor ensures consistent zone control and differential pressure monitoring in duct branches. Use this as a reliable duct mount sensor for any HVAC retrofit or new VAV unit installation where performance is non-negotiable.
Key Benefits- Accurate Velocity Measurement: Provides the precise differential pressure needed to calculate real-time airflow in variable air volume systems.
- Robust Construction: Manufactured from UL94-5V rated ABS/polycarbonate for long-term reliability in clean air and inert gas applications.
- Versatile Mounting: The included mounting flange with gasket simplifies installation on a variety of duct geometries without additional brackets.
- Standardized Connections: Compatible with common 1/4" I.D. / 3/8" O.D. tubing, ensuring a leak-free fit with standard differential pressure transmitters.
- Does this sensor come with a specific K-factor? Yes, the PAFS-1003 has an approximate K-factor of 1.39, which acts as a direct multiplier for calculating actual velocity from measured velocity.
- What is the proper mounting orientation for this probe? For the 5 13/32" length, horizontal mounting is recommended to ensure the most accurate velocity pressure readings across the sensing points.
- Can this be used in high-temperature exhaust ducts? No, this unit is designed for standard HVAC applications with a maximum operating limit of 120°F (49°C).
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.
