Dwyer Instruments ADPS-04-2-N Pressure Switch
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Dwyer Instruments ADPS-04-2-N Pressure Switch

Dwyer Instruments ADPS-04-2-N Pressure Switch

As a seasoned technician, you know that reliability in the mechanical room starts with a rock-solid differential pressure switch. The Dwyer Instruments ADPS-04-2-N is the industry standard for monitoring air and non-combustible gases in critical HVAC/R environments. This switch features a field-adjustable setpoint range of 0.12 to 1.6 inches water column, allowing you to dial in precise pressure monitoring for filter banks and fan proofing. The unit is built with a durable silicone diaphragm and a PA 6.6 body, ensuring long-term stability even in demanding building automation systems. With its SPDT (single-pole double-throw) relay, this switch integrates seamlessly with DDC controllers for duct airflow control and industrial cooling circuits. Designed for vertical mounting, the ADPS-04-2-N features dual scales in inches w.c. and Pascals, making it easy to confirm your trip point through the transparent cover without needing a separate gage during commissioning.

Key Benefits for the Contractor
  • Field-Adjustable Accuracy: The integrated adjustment knob eliminates the need for external manometers when setting trip points between 0.12 and 1.6 inches w.c.
  • Versatile Electrical Integration: The SPDT switch configuration allows you to control a fan starter or signal an alarm through a Building Management System simultaneously.
  • Robust Environmental Protection: Featuring a NEMA 13 (IP54) enclosure rating, this unit is engineered to withstand the dust and moisture typical of mechanical rooms.
  • Simplified Installation: Standard 5/16 inch O.D. tubing connections (for 1/4 inch I.D. tubing) ensure easy retrofitting into existing ventilation duct probes.
Common Questions & Technical Support

What is the maximum pressure rating for this switch?
The ADPS-04-2-N can handle a maximum operating pressure of 40 inches w.c. (10 kPa) without damage to the internal diaphragm.

Does this switch work in horizontal orientations?
For maximum accuracy and repeatability, this unit must be vertically mounted with the pressure connections pointing downwards to prevent moisture accumulation.

Can I use this for combustible gas applications?
No, this model is specifically rated for air and non-combustible, compatible gases only. Always verify your media compatibility before installation.

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.

$11.45

Original: $32.71

-65%
Dwyer Instruments ADPS-04-2-N Pressure Switch

$32.71

$11.45

Dwyer Instruments ADPS-04-2-N Pressure Switch

As a seasoned technician, you know that reliability in the mechanical room starts with a rock-solid differential pressure switch. The Dwyer Instruments ADPS-04-2-N is the industry standard for monitoring air and non-combustible gases in critical HVAC/R environments. This switch features a field-adjustable setpoint range of 0.12 to 1.6 inches water column, allowing you to dial in precise pressure monitoring for filter banks and fan proofing. The unit is built with a durable silicone diaphragm and a PA 6.6 body, ensuring long-term stability even in demanding building automation systems. With its SPDT (single-pole double-throw) relay, this switch integrates seamlessly with DDC controllers for duct airflow control and industrial cooling circuits. Designed for vertical mounting, the ADPS-04-2-N features dual scales in inches w.c. and Pascals, making it easy to confirm your trip point through the transparent cover without needing a separate gage during commissioning.

Key Benefits for the Contractor
  • Field-Adjustable Accuracy: The integrated adjustment knob eliminates the need for external manometers when setting trip points between 0.12 and 1.6 inches w.c.
  • Versatile Electrical Integration: The SPDT switch configuration allows you to control a fan starter or signal an alarm through a Building Management System simultaneously.
  • Robust Environmental Protection: Featuring a NEMA 13 (IP54) enclosure rating, this unit is engineered to withstand the dust and moisture typical of mechanical rooms.
  • Simplified Installation: Standard 5/16 inch O.D. tubing connections (for 1/4 inch I.D. tubing) ensure easy retrofitting into existing ventilation duct probes.
Common Questions & Technical Support

What is the maximum pressure rating for this switch?
The ADPS-04-2-N can handle a maximum operating pressure of 40 inches w.c. (10 kPa) without damage to the internal diaphragm.

Does this switch work in horizontal orientations?
For maximum accuracy and repeatability, this unit must be vertically mounted with the pressure connections pointing downwards to prevent moisture accumulation.

Can I use this for combustible gas applications?
No, this model is specifically rated for air and non-combustible, compatible gases only. Always verify your media compatibility before installation.

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

Shipping & Returns

Description

As a seasoned technician, you know that reliability in the mechanical room starts with a rock-solid differential pressure switch. The Dwyer Instruments ADPS-04-2-N is the industry standard for monitoring air and non-combustible gases in critical HVAC/R environments. This switch features a field-adjustable setpoint range of 0.12 to 1.6 inches water column, allowing you to dial in precise pressure monitoring for filter banks and fan proofing. The unit is built with a durable silicone diaphragm and a PA 6.6 body, ensuring long-term stability even in demanding building automation systems. With its SPDT (single-pole double-throw) relay, this switch integrates seamlessly with DDC controllers for duct airflow control and industrial cooling circuits. Designed for vertical mounting, the ADPS-04-2-N features dual scales in inches w.c. and Pascals, making it easy to confirm your trip point through the transparent cover without needing a separate gage during commissioning.

Key Benefits for the Contractor
  • Field-Adjustable Accuracy: The integrated adjustment knob eliminates the need for external manometers when setting trip points between 0.12 and 1.6 inches w.c.
  • Versatile Electrical Integration: The SPDT switch configuration allows you to control a fan starter or signal an alarm through a Building Management System simultaneously.
  • Robust Environmental Protection: Featuring a NEMA 13 (IP54) enclosure rating, this unit is engineered to withstand the dust and moisture typical of mechanical rooms.
  • Simplified Installation: Standard 5/16 inch O.D. tubing connections (for 1/4 inch I.D. tubing) ensure easy retrofitting into existing ventilation duct probes.
Common Questions & Technical Support

What is the maximum pressure rating for this switch?
The ADPS-04-2-N can handle a maximum operating pressure of 40 inches w.c. (10 kPa) without damage to the internal diaphragm.

Does this switch work in horizontal orientations?
For maximum accuracy and repeatability, this unit must be vertically mounted with the pressure connections pointing downwards to prevent moisture accumulation.

Can I use this for combustible gas applications?
No, this model is specifically rated for air and non-combustible, compatible gases only. Always verify your media compatibility before installation.

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.