The float and equalize settings are fully independent adjustments whose settings are made by screwdriver access through small sliding doors in the front panel. The digital voltmeter allows precise adjustment. A digital ammeter displays the charging current.
TBC Rack mount rear view
Rear View
If the current drops to zero -- either because the a-c mains power to the TBC is lost, the front panel circuit breaker is turned off or the voltage setting is adjusted below the battery's voltage, a "charging stopped" LED is illuminated and a flag signal is provided.
Equalize mode can be selected either with a front panel push button -- or a remote contact closure. This sets the voltage to the equalize level (adjustable). A timer is activated that will reset back to float mode after a period of time (0.1 to 99.9 hrs) that can be set from the front panel with a thumbwheel selector. A flag signal is produced when the TBC is in equalize mode.