Dwyer Instruments' Series BDPA Adjustable Differential Pressure Alarm features built-in audible and visual set point indication

Dwyer Instruments' 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 the need for a separate pressure gage. Each 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, an audible buzzer and 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.
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