Dwyer Instruments 1950-5-2F Pressure Switch
The Dwyer 1950-5-2F is a precision-engineered explosion-proof differential pressure switch designed for monitoring air and non-combustible gases in hazardous environments. Rated for NEMA 7 (Class I, Groups C, D) and NEMA 9 (Class II, Groups E, F, G) compliance, this integral explosion-proof pressure switch eliminates the need for bulky external enclosures. It features a set point range of 1.4 to 5.5 inches w.c. with a narrow approximate deadband of 0.30 to 0.40 inches w.c., ensuring high-accuracy switching for critical HVAC automation and industrial ventilation systems. The internal SPDT switch provides versatile wiring configurations, while the 1/8 inch female NPT process connections allow for standard pneumatic integration. This differential pressure controller utilizes a silicone diaphragm and a cast aluminum housing, making it a reliable solution for flammable gas pressure monitoring where safety and repeat accuracy are paramount for contractor-grade installations.
Key Benefits
- Compact Explosive Environment Protection: Integrated flame paths and housing meet UL and CSA standards for hazardous locations without the footprint of a separate junction box.
- Precise Set Point Adjustment: The adjustable pressure switch mechanism allows for field calibration between 1.4 and 5.5" w.c. to match specific system requirements.
- Reliable Diaphragm Actuation: Designed for use with air and compatible non-combustible gases, providing stable performance in industrial HVAC applications.
- Weatherproof Construction: The O-ring sealed cover enables the unit to function reliably in outdoor or wash-down environments.
Common Questions
Can the Dwyer 1950-5-2F be used for liquid pressure monitoring?
No, this model is specifically engineered for air and non-combustible compatible gases; utilizing it with liquids will damage the internal sensing element.
Is this switch suitable for Class I, Group B (Hydrogen) atmospheres?
The 1950-5-2F is rated for Groups C and D. For Group B applications, consult the Dwyer 1950P series or specialized explosion-proof models rated for hydrogen environments.
How do I adjust the set point on this unit?
The set point is adjusted externally via a screw located under the weather-tight plug, allowing for calibration without opening the explosion-proof housing.
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: $376.62
-65%$376.62
$131.82Dwyer Instruments 1950-5-2F Pressure Switch
The Dwyer 1950-5-2F is a precision-engineered explosion-proof differential pressure switch designed for monitoring air and non-combustible gases in hazardous environments. Rated for NEMA 7 (Class I, Groups C, D) and NEMA 9 (Class II, Groups E, F, G) compliance, this integral explosion-proof pressure switch eliminates the need for bulky external enclosures. It features a set point range of 1.4 to 5.5 inches w.c. with a narrow approximate deadband of 0.30 to 0.40 inches w.c., ensuring high-accuracy switching for critical HVAC automation and industrial ventilation systems. The internal SPDT switch provides versatile wiring configurations, while the 1/8 inch female NPT process connections allow for standard pneumatic integration. This differential pressure controller utilizes a silicone diaphragm and a cast aluminum housing, making it a reliable solution for flammable gas pressure monitoring where safety and repeat accuracy are paramount for contractor-grade installations.
Key Benefits
- Compact Explosive Environment Protection: Integrated flame paths and housing meet UL and CSA standards for hazardous locations without the footprint of a separate junction box.
- Precise Set Point Adjustment: The adjustable pressure switch mechanism allows for field calibration between 1.4 and 5.5" w.c. to match specific system requirements.
- Reliable Diaphragm Actuation: Designed for use with air and compatible non-combustible gases, providing stable performance in industrial HVAC applications.
- Weatherproof Construction: The O-ring sealed cover enables the unit to function reliably in outdoor or wash-down environments.
Common Questions
Can the Dwyer 1950-5-2F be used for liquid pressure monitoring?
No, this model is specifically engineered for air and non-combustible compatible gases; utilizing it with liquids will damage the internal sensing element.
Is this switch suitable for Class I, Group B (Hydrogen) atmospheres?
The 1950-5-2F is rated for Groups C and D. For Group B applications, consult the Dwyer 1950P series or specialized explosion-proof models rated for hydrogen environments.
How do I adjust the set point on this unit?
The set point is adjusted externally via a screw located under the weather-tight plug, allowing for calibration without opening the explosion-proof housing.
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
Shipping & Returns
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Description
The Dwyer 1950-5-2F is a precision-engineered explosion-proof differential pressure switch designed for monitoring air and non-combustible gases in hazardous environments. Rated for NEMA 7 (Class I, Groups C, D) and NEMA 9 (Class II, Groups E, F, G) compliance, this integral explosion-proof pressure switch eliminates the need for bulky external enclosures. It features a set point range of 1.4 to 5.5 inches w.c. with a narrow approximate deadband of 0.30 to 0.40 inches w.c., ensuring high-accuracy switching for critical HVAC automation and industrial ventilation systems. The internal SPDT switch provides versatile wiring configurations, while the 1/8 inch female NPT process connections allow for standard pneumatic integration. This differential pressure controller utilizes a silicone diaphragm and a cast aluminum housing, making it a reliable solution for flammable gas pressure monitoring where safety and repeat accuracy are paramount for contractor-grade installations.
Key Benefits
- Compact Explosive Environment Protection: Integrated flame paths and housing meet UL and CSA standards for hazardous locations without the footprint of a separate junction box.
- Precise Set Point Adjustment: The adjustable pressure switch mechanism allows for field calibration between 1.4 and 5.5" w.c. to match specific system requirements.
- Reliable Diaphragm Actuation: Designed for use with air and compatible non-combustible gases, providing stable performance in industrial HVAC applications.
- Weatherproof Construction: The O-ring sealed cover enables the unit to function reliably in outdoor or wash-down environments.
Common Questions
Can the Dwyer 1950-5-2F be used for liquid pressure monitoring?
No, this model is specifically engineered for air and non-combustible compatible gases; utilizing it with liquids will damage the internal sensing element.
Is this switch suitable for Class I, Group B (Hydrogen) atmospheres?
The 1950-5-2F is rated for Groups C and D. For Group B applications, consult the Dwyer 1950P series or specialized explosion-proof models rated for hydrogen environments.
How do I adjust the set point on this unit?
The set point is adjusted externally via a screw located under the weather-tight plug, allowing for calibration without opening the explosion-proof housing.
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.
