Dwyer Instruments 1911-00 Pressure Switch
The Dwyer Instruments 1911-00 Pressure Switch is the industry standard for high-sensitivity differential pressure monitoring in HVACR systems. Built for veteran contractors who require a compact, reliable solution for detecting low differential pressure, this SPDT switch operates within a precision range of 0.07" w.c. to 0.15" w.c. with an approximate deadband of 0.04" w.c. at both minimum and maximum set points. Designed for use with air or non-combustible gases, the 1911-00 is engineered without a conduit enclosure, making it an ideal choice for space-constrained installations where precision construction and repeatability are non-negotiable.
This unit features a robust 1/8" female NPT process connection and supports a continuous pressure limit of 45" w.c., with surge protection up to 10 psig. Its automatic reset functionality and versatile single-pole double-throw configuration ensure seamless integration into clogged filter detection, defrost cycle initiation, and variable air volume (VAV) control circuits. The Dwyer Series 1900's internal range screw allows for secure calibration, protecting settings from field tampering. Whether you are managing refrigeration coil icing detection or industrial oven airflow, this mechanical pressure switch delivers professional-grade performance in a compact footprint.
Key Benefits- Precision Sensitivity: Specialized set point range of 0.07" to 0.15" w.c. for ultra-low pressure applications.
- Versatile Compatibility: Rated for 15A @ 120-480 VAC, suitable for a wide array of pilot duty and motor loads.
- Rugged Reliability: Operational temp range from -30°F to 180°F ensures stability in extreme mechanical environments.
- Space-Efficient Design: The absence of a conduit enclosure allows for easier mounting in tight control cabinets.
- Safety Compliance: Meets CE, UL, CSA, and FM approvals for industrial and commercial HVAC standards.
Can this switch be mounted in any orientation?
For maximum accuracy and repeatability, the diaphragm must be mounted in a vertical position. Consult technical data for recalibration requirements if other orientations are necessary.
Is the 1911-00 suitable for hazardous areas?
The standard 1911-00 is not explosion-proof. For hazardous gas environments, contractors should specify the -EXPL or -WP versions which feature protective enclosures.
What media is compatible with this pressure switch?
It is exclusively designed for use with air and non-combustible, compatible gases. Do not use this switch with corrosive or combustible gas streams.
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: $102.44
-65%$102.44
$35.85Dwyer Instruments 1911-00 Pressure Switch
The Dwyer Instruments 1911-00 Pressure Switch is the industry standard for high-sensitivity differential pressure monitoring in HVACR systems. Built for veteran contractors who require a compact, reliable solution for detecting low differential pressure, this SPDT switch operates within a precision range of 0.07" w.c. to 0.15" w.c. with an approximate deadband of 0.04" w.c. at both minimum and maximum set points. Designed for use with air or non-combustible gases, the 1911-00 is engineered without a conduit enclosure, making it an ideal choice for space-constrained installations where precision construction and repeatability are non-negotiable.
This unit features a robust 1/8" female NPT process connection and supports a continuous pressure limit of 45" w.c., with surge protection up to 10 psig. Its automatic reset functionality and versatile single-pole double-throw configuration ensure seamless integration into clogged filter detection, defrost cycle initiation, and variable air volume (VAV) control circuits. The Dwyer Series 1900's internal range screw allows for secure calibration, protecting settings from field tampering. Whether you are managing refrigeration coil icing detection or industrial oven airflow, this mechanical pressure switch delivers professional-grade performance in a compact footprint.
Key Benefits- Precision Sensitivity: Specialized set point range of 0.07" to 0.15" w.c. for ultra-low pressure applications.
- Versatile Compatibility: Rated for 15A @ 120-480 VAC, suitable for a wide array of pilot duty and motor loads.
- Rugged Reliability: Operational temp range from -30°F to 180°F ensures stability in extreme mechanical environments.
- Space-Efficient Design: The absence of a conduit enclosure allows for easier mounting in tight control cabinets.
- Safety Compliance: Meets CE, UL, CSA, and FM approvals for industrial and commercial HVAC standards.
Can this switch be mounted in any orientation?
For maximum accuracy and repeatability, the diaphragm must be mounted in a vertical position. Consult technical data for recalibration requirements if other orientations are necessary.
Is the 1911-00 suitable for hazardous areas?
The standard 1911-00 is not explosion-proof. For hazardous gas environments, contractors should specify the -EXPL or -WP versions which feature protective enclosures.
What media is compatible with this pressure switch?
It is exclusively designed for use with air and non-combustible, compatible gases. Do not use this switch with corrosive or combustible gas streams.
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 Instruments 1911-00 Pressure Switch is the industry standard for high-sensitivity differential pressure monitoring in HVACR systems. Built for veteran contractors who require a compact, reliable solution for detecting low differential pressure, this SPDT switch operates within a precision range of 0.07" w.c. to 0.15" w.c. with an approximate deadband of 0.04" w.c. at both minimum and maximum set points. Designed for use with air or non-combustible gases, the 1911-00 is engineered without a conduit enclosure, making it an ideal choice for space-constrained installations where precision construction and repeatability are non-negotiable.
This unit features a robust 1/8" female NPT process connection and supports a continuous pressure limit of 45" w.c., with surge protection up to 10 psig. Its automatic reset functionality and versatile single-pole double-throw configuration ensure seamless integration into clogged filter detection, defrost cycle initiation, and variable air volume (VAV) control circuits. The Dwyer Series 1900's internal range screw allows for secure calibration, protecting settings from field tampering. Whether you are managing refrigeration coil icing detection or industrial oven airflow, this mechanical pressure switch delivers professional-grade performance in a compact footprint.
Key Benefits- Precision Sensitivity: Specialized set point range of 0.07" to 0.15" w.c. for ultra-low pressure applications.
- Versatile Compatibility: Rated for 15A @ 120-480 VAC, suitable for a wide array of pilot duty and motor loads.
- Rugged Reliability: Operational temp range from -30°F to 180°F ensures stability in extreme mechanical environments.
- Space-Efficient Design: The absence of a conduit enclosure allows for easier mounting in tight control cabinets.
- Safety Compliance: Meets CE, UL, CSA, and FM approvals for industrial and commercial HVAC standards.
Can this switch be mounted in any orientation?
For maximum accuracy and repeatability, the diaphragm must be mounted in a vertical position. Consult technical data for recalibration requirements if other orientations are necessary.
Is the 1911-00 suitable for hazardous areas?
The standard 1911-00 is not explosion-proof. For hazardous gas environments, contractors should specify the -EXPL or -WP versions which feature protective enclosures.
What media is compatible with this pressure switch?
It is exclusively designed for use with air and non-combustible, compatible gases. Do not use this switch with corrosive or combustible gas streams.
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.
