Dwyer Instruments 1831-1-RA-S Pressure Switch
The Dwyer Instruments 1831-1-RA-S Low Differential Pressure Switch is a critical safety component designed for precise HVAC pressure monitoring and air flow verification. This model operates within a set point range of 2.5 to 9 inches w.c., making it ideal for high-static pressure applications where manual intervention is required following a trip. Built with a silicone diaphragm and a rugged Type 1 enclosure, this switch manages a 10 psi maximum pressure rating, ensuring stability in commercial ventilation systems. The manual reset feature provides an essential fail-safe, preventing equipment from cycling automatically until a technician inspects the system. Contractors rely on the Dwyer 1831 series for its SPDT contact configuration and reliable performance in differential pressure sensing. Its compact design facilitates easy installation in tight mechanical rooms, providing accurate air pressure switch functionality for building automation and industrial process control.
Key Benefits:
- High Set Point Range: Adjusts from 2.5" to 9" w.c. for specialized high-pressure air systems.
- Safety-First Operation: Manual reset ensures the HVAC limit switch stays open until a manual restart occurs.
- Durable Construction: NEMA 1 rated housing protects internal components from dust and debris.
- Simplified Wiring: Features standard screw terminals for straightforward integration into 24V or 120V circuits.
Common Questions:
How do I adjust the set point on the 1831-1-RA-S?
Technicians can calibrate the set point by removing the top cover and turning the adjustment screw, verifying the trip point with a calibrated manometer during the HVAC pressure switch troubleshooting process.
Can this switch be used to monitor liquid pressure?
No, this unit is specifically engineered for air and non-combustible gases only. Using it with liquids will damage the internal diaphragm.
What is the orientation requirement for mounting?
The 1831 series is typically calibrated for mounting in a vertical position. If mounted horizontally, the set point may shift due to the weight of the diaphragm.
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: $212.52
-65%$212.52
$74.38Dwyer Instruments 1831-1-RA-S Pressure Switch
The Dwyer Instruments 1831-1-RA-S Low Differential Pressure Switch is a critical safety component designed for precise HVAC pressure monitoring and air flow verification. This model operates within a set point range of 2.5 to 9 inches w.c., making it ideal for high-static pressure applications where manual intervention is required following a trip. Built with a silicone diaphragm and a rugged Type 1 enclosure, this switch manages a 10 psi maximum pressure rating, ensuring stability in commercial ventilation systems. The manual reset feature provides an essential fail-safe, preventing equipment from cycling automatically until a technician inspects the system. Contractors rely on the Dwyer 1831 series for its SPDT contact configuration and reliable performance in differential pressure sensing. Its compact design facilitates easy installation in tight mechanical rooms, providing accurate air pressure switch functionality for building automation and industrial process control.
Key Benefits:
- High Set Point Range: Adjusts from 2.5" to 9" w.c. for specialized high-pressure air systems.
- Safety-First Operation: Manual reset ensures the HVAC limit switch stays open until a manual restart occurs.
- Durable Construction: NEMA 1 rated housing protects internal components from dust and debris.
- Simplified Wiring: Features standard screw terminals for straightforward integration into 24V or 120V circuits.
Common Questions:
How do I adjust the set point on the 1831-1-RA-S?
Technicians can calibrate the set point by removing the top cover and turning the adjustment screw, verifying the trip point with a calibrated manometer during the HVAC pressure switch troubleshooting process.
Can this switch be used to monitor liquid pressure?
No, this unit is specifically engineered for air and non-combustible gases only. Using it with liquids will damage the internal diaphragm.
What is the orientation requirement for mounting?
The 1831 series is typically calibrated for mounting in a vertical position. If mounted horizontally, the set point may shift due to the weight of the diaphragm.
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.
Product Information
Product Information
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Description
The Dwyer Instruments 1831-1-RA-S Low Differential Pressure Switch is a critical safety component designed for precise HVAC pressure monitoring and air flow verification. This model operates within a set point range of 2.5 to 9 inches w.c., making it ideal for high-static pressure applications where manual intervention is required following a trip. Built with a silicone diaphragm and a rugged Type 1 enclosure, this switch manages a 10 psi maximum pressure rating, ensuring stability in commercial ventilation systems. The manual reset feature provides an essential fail-safe, preventing equipment from cycling automatically until a technician inspects the system. Contractors rely on the Dwyer 1831 series for its SPDT contact configuration and reliable performance in differential pressure sensing. Its compact design facilitates easy installation in tight mechanical rooms, providing accurate air pressure switch functionality for building automation and industrial process control.
Key Benefits:
- High Set Point Range: Adjusts from 2.5" to 9" w.c. for specialized high-pressure air systems.
- Safety-First Operation: Manual reset ensures the HVAC limit switch stays open until a manual restart occurs.
- Durable Construction: NEMA 1 rated housing protects internal components from dust and debris.
- Simplified Wiring: Features standard screw terminals for straightforward integration into 24V or 120V circuits.
Common Questions:
How do I adjust the set point on the 1831-1-RA-S?
Technicians can calibrate the set point by removing the top cover and turning the adjustment screw, verifying the trip point with a calibrated manometer during the HVAC pressure switch troubleshooting process.
Can this switch be used to monitor liquid pressure?
No, this unit is specifically engineered for air and non-combustible gases only. Using it with liquids will damage the internal diaphragm.
What is the orientation requirement for mounting?
The 1831 series is typically calibrated for mounting in a vertical position. If mounted horizontally, the set point may shift due to the weight of the diaphragm.
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.
