The BDPA series adjustable differential pressure alarms feature built-in audible and visual setpoint indicators and are designed specifically for overpressure, vacuum, and differential pressure applications. The scaling adjustment knob allows you to change the switch pressure without a pressure gauge. The BDPA can be set anywhere from 0.08" WC (20 Pa) to 20" WC (5000 Pa). With a silicone diaphragm and PA 6.6 valve body, the BDPA series is ideal for use with air and other non-flammable gases.

The BDPA series adjustable differential pressure alarms offer a versatile range of configurations, letting you take advantage of many of its features. The BDPA can be powered by a battery or a 24 VDC/VAC line. If connected to line power, the battery can serve as a backup during power outages. When the setpoint is reached, a loud local buzzer and bright LED regularly indicate activation. An SPDT contact can also send signals remotely to a DDC or building management system through wiring. Through an opening in the cover, users can press a silence button to manually stop the audible and visual alerts until maintenance is performed. If the instrument is installed in a hard-to-reach location, a remote contact can be connected to allow users to turn off the buzzer and reset it from the remote point.

The BDPA series differential pressure alarms are highly versatile, making them perfect for filters, fans, and ventilation systems, or any retrofit jobs where wiring costs are high.

Note: For 1/2" NPT connections, use a 1/2" conduit adapter (A-483).

●  Wireless ability allows for easy installation in buildings with concrete or marble walls

●  No wires need to be connected, allowing for remote monitoring reduces downtime

●  Dual scaled set point adjustment knob to quickly and easily set the value to activate the switch