GUARD LEVEL® Portable Alarm Unit (PAU)

Product Details

The GUARD LEVEL® Portable Alarm Unit (PAU) is a rugged portable solution for on-board alarm annunciation on inland and coastal river barges. The system monitors and raises alarms through series-connected alarm sensors and gives a unique warning for both HL and HH (Overfill) levels. This battery-powered unit plugs into existing tank barge API receptacles.

Naturally, it complies with all CFR regulations for tank overfill control. Unique features include an automatic by-pass switch allowing for seamless operation when connected to a tank terminal’s alarm system. In case of power failure or system failure, the switch automatically disconnects the PAU from the circuit and by-passes the series-connected sensors directly into the terminal’s alarm system. Battery status and power fail warnings are also included. And, the PAU can be used as a tandem load.

The PAU is designed to be located and operated in a barge “safe” area, but all the sensor input and outputs are protected with galvanically isolated safety barriers for complete safety in most shipping locations.