This unit was designed for use with Tail Lifts Controllers. The unit monitors the battery voltage. Once the battery voltage has dropped below the predetermined minimum level for more than 30 seconds, the lamp flashes and the piezo sounds.
If the battery voltage is not raised to an acceptable level within 2 minutes, the solenoid operates to disconnect the supply for 4 minutes. During this period, the lamp and piezo remain on continuously.
This 2 minutes, four minutes cycle is repeated until the battery voltage is raised to an acceptable level.
A “start” connection is provided, which reconnects the supply and resets the timers. This can be activated by one of four methods - wiring diagrams are supplied with the unit.