Dwyer BDPA-07-2-N Adjustable Differential Pressure Switch

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Dwyer BDPA-07-2-N Adjustable Differential Pressure Switch Specification

Outer Size
66 mm x 121 mm x 94 mm (approx)

Sensor Type
Adjustable Differential Pressure Switch

Grade
Industrial Grade

Seal Material
Nitrile rubber

Thread
G1/4 Female

Material
Die cast aluminum housing

Processing Type
Factory Calibrated

Mount Type
Panel or Surface Mount

Scale Range
0.07 to 2 bar (1 to 30 psi)

Accuracy
2% F.S.

Finishing
Enamel coated metal, black finish

Measure Pressure Of
Air and non-combustible gases

Accessories
Standard Mounting Screws

Dwyer BDPA-07-2-N Adjustable Differential Pressure Switch Trade Information

Payment Terms
Cash Against Delivery (CAD), Cash on Delivery (COD), Cash in Advance (CID), Cheque, Cash Advance (CA)

Main Export Market(s)
Australia, North America, South America, Eastern Europe, Middle East, Africa, Central America, Western Europe, Asia

Main Domestic Market
All India

About Dwyer BDPA-07-2-N Adjustable Differential Pressure Switch

Dwyer BDPA-07-2-N Adjustable Differential Pressure Switch Description

Series BDPA Adjustable Differential Pressure Alarm 4.00-20.00" w.c.

24 Volt or Battery Powered, Built-in Audible and Visual Alarm

The Series BDPA Adjustable Differential Pressure Alarmwith built-in audible and visual set point indication is designed for overpressure, vacuum, and differential pressure applications. The scaled adjustment knob allows changes to the switching pressure to be made without a pressure gage. The silicone diaphragm and PA 6.6 body make the Series BDPA perfect for use with air and other noncombustible gases.

The Series BDPA Adjustable Differential Pressure Alarms offer a versatile range of configurations allowing utilization of their many features. The BDPA can be powered by battery or 24 VDC/VAC line power. If connecting line power, the battery can act as back-up power in case of power outage. When set point threshold is reached, a local loud audible buzzer and bright LED will indicate periodically notifying of set point activation. An SPDT contact may also be wired to send a signal remotely to a DDC or building management system. A snooze button located through an opening in the cover can be pressed by the user to manually disengage the audible and visual indication until a maintenance operation is performed. If the instrument is mounted where it is difficult to access, a remote contact may be connected allowing the user to deactivate the buzzer and LED at the remote contact location.

The Series BDPA Differential Pressure Alarm's great functional versatility makes it perfect for filter, fan, and ventilation applications or any retrofit job where installing electrical wiring proves cost-prohibitive.

Note: For a 1/2" npt connection, use the 1/2" conduit fitting adapter (A-483).

Approvals

CE Approval
Reduction of Hazardous Substance (RoHS)

Specification

Service	Air and noncombustible, compatible gases
Wetted Materials	Diaphragm: Silicone; Housing: Switch Body: PA 6.6 and POM; Cover: Polystyrene
Temperature Limits	32 to 122°F (0 to 50°C)
Pressure Limits	40" w.c. (10 kPa)
Electrical Rating	1.0 A @ 30 VDC/VAC
Switch Type	SPDT
Alarm Indicationrm.	Red LED and audible alarm
Alarm Level	Approximately 90 db at 4" (10 cm)
Alarm Acknowledge	Button press
Power Requirements	16 to 30 VDC, 18 to 30 VAC or 3.6 V LS14250 lithium metal battery, installed functional, user replaceable. Battery acts as back-up if power is lost
Battery Life	Approximately 1.5 years with 3.6 V/1.2 Ah
Repeatability	±15% FS
Electrical Connections	Screw terminals. M20x1.5 with cable strain relief or optional 1/2" NPT connection
Process Connections	5/16" (7.94 mm) outside diameter tubing, 1/4" (6.0 mm) inside diameter tubing
Mounting Orientation	Vertically, with pressure connections pointing downwards
Enclosure Rating	IP21
Weight	6.1 oz (173 g)
Agency Approvals	CE, RoHS

Reliable Pressure Monitoring for Industrial Applications

Engineered for differential air pressure monitoring, the BDPA-07-2-N ensures precise control in process environments. Its robust die cast aluminum housing, adjustable setpoint knob, and accurate SPDT switching support critical tasks such as filter and blower monitoring, helping maintain optimal system performance.

Simple Installation and Flexible Mounting Options

This pressure switch features standard mounting screws and a choice of panel or surface mount for quick and secure installation. Two G1/4 female ports allow versatile process connections, while its compact size integrates easily into existing setups, reducing downtime during upgrades or replacements.

Durable Construction and Reliable Performance

Built with a tough aluminum alloy enclosure enamel coated for corrosion resistance, the BDPA-07-2-N performs reliably in harsh industrial conditions. Suitable for operating in temperatures ranging from -20C to 60C, it withstands challenging environments, ensuring long-term service and safety compliance.

FAQs of Dwyer BDPA-07-2-N Adjustable Differential Pressure Switch:

Q: How is the setpoint adjusted on the Dwyer BDPA-07-2-N pressure switch?

A: The setpoint can be easily adjusted using the external knob located on the device, enabling quick modification of switching points without opening the enclosure or interrupting system operations.

Q: What applications is this differential pressure switch suitable for?

A: It is designed for monitoring and controlling differential air pressure in industrial systems, including filter monitoring, blower, and fan control, suitable for air and non-combustible gas media.

Q: Where can the BDPA-07-2-N be installed?

A: The switch supports both panel and surface mounting, making it suitable for integration into equipment panels or directly onto flat surfaces, depending on the requirements of your installation site.

Q: What are the benefits of the enclosure material and finish?

A: The die cast aluminum alloy housing offers strength and durability, while the enamel-coated black finish provides enhanced corrosion resistance, ensuring reliable operation in industrial environments.

Q: What electrical ratings does the BDPA-07-2-N support?

A: The SPDT switch is rated for 15A at 250 VAC, 0.4A at 125VDC, and 0.2A at 250VDC, ensuring compatibility with a broad range of industrial control systems.

Q: When should the pressure switch be recalibrated?

A: The device is factory calibrated for accuracy, but regular recalibration may be advised as part of scheduled maintenance, especially in critical processes or after extended periods of operation.

Q: What is the process connection type for this switch?

A: It is equipped with two G1/4 female ports, offering standard connections for air and non-combustible gas media, facilitating straightforward integration with existing pneumatic lines.

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