BDPA - Adjustable Differential Pressure Alarm

Offer a versatile range of configurations allowing utilization of their many features

Starting at

$225.75CAD

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BDPA Adjustable Differential Pressure Alarm 07397

The Series BDPA Adjustable Differential Pressure Alarm with 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 BDPA is available with settings from 0.08" w.c. (20 Pa) to 20" w.c. (5000 Pa). 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).

• Adjustment knob changes switching pressure easily with a pressure gage reducing components for application

• Low cost device makes it an excellent solution in BAS and HVAC applications requiring duct control and monitoring

• Relay contact allows simple integration with DDC or building systems

Battery Life:	Approximately 1.5 years with 3.6 V/1.2 Ah.
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.
Alarm Acknowledge:	Button press.
Alarm Level:	Approximately 90 db at 4" (10 cm).
Alarm Indication:	Red LED and audible alarm.
Switch Type:	SPDT.
Electrical Rating:	1.0 A @ 30 VDC/VAC.
Pressure Limits:	Max. operating pressure: 40" w.c. (10 kPa) for all pressure ranges.
Temperature Limits:	Process and ambient temperature from -4 to 185°F (-20 to 85°C).
Wetted Materials:	Diaphragm: Silicone; Housing: Switch Body: PA 6.6 and POM; Cover: Polystyrene.
Service:	Air and noncombustible, compatible gases.
Agency Approvals:	CE, RoHS.
Weight:	6.1 oz (173 g).
Enclosure Rating:	IP21.
Mounting Orientation:	Vertically, with pressure connections pointing downwards.
Process Connections:	5/16" (7.94 mm) outside diameter tubing, 1/4" (6.0 mm) inside diameter tubing.
Electrical Connections:	Screw terminals. M20x1.5 with cable strain relief or optional 1/2" NPT connection.
Repeatability:	±15% FS.