Dwyer Instruments Differential Pressure Switch w.c. Connection

The Dwyer Instruments Series ADPS adjustable differential pressure switch senses pressure, vacuum, or differential pressure. It is built for HVAC, ventilation, and building automation work. It is often used as an airflow-proving switch, a filter status switch, or a duct pressure switch. Each model in this line has its own set point range.

Key Features:

• Dual-scale adjustment knob is marked in inches of water column and pascals. You can set the switching pressure without a separate pressure gauge.
• Silicone diaphragm and a PA 6.6 switch body suit air and other non-combustible, compatible gases.
• SPDT relay contact is rated at 1.5 A at 250 VAC. It connects easily to DDC and building control systems.
• Electrical entry uses push-on screw terminals and an M20 cable strain relief connection.
• Process connections accept flexible tubing on 5/16 in OD nipples.
• Enclosure is rated NEMA 13 (IP54). Its compact plastic housing has a removable cover that protects the adjustment knob and terminals.
• Operating limits are process and ambient temperatures of -4 to 185°F (-20 to 85°C). Maximum operating pressure is 40 in w.c. (10 kPa).
• Mounting is vertical, with the pressure connections pointing downward.

The compact size and adjustable set point make the ADPS line a practical choice for HVAC and building automation systems. Select the model whose set point range matches your application.