cell for nickel cadmium cells, 1.6 volts per cell for nickel-iron (Edison) cells so that the battery can be given an equalizing
charge. To give an equalizing charge, it is only necessary to throw the switch to the high position and leave it there for 24
hours. The rectifier will automatically hold the cell voltage at equalizing voltage when the switch is in high position and will
drop back to float voltage when the switch is put back into the normal or float position.
If a 24 hour equalizing timer is provided, the timer switch replaces the manual high-float switch. To operate the timer, it is
only necessary to turn the timer knob to the desired equalizing time setting. The time switch transfers the rectifier from the
float to the equalizing charge rate. The timer times out to automatically return the rectifier to the float charge position.
The inherent design of the transformer-reactor combination provides compensation for line voltage variations of + 10%.
The DC output is regulated to ± 1% from no load to full load with AC line variations of * 10%.
The DC output current is limited to provide for complete protection. The current limiting feature allows for the unit to carry
overloads and limits the output to a maximum of 140% of the rated output.
Power failure contacts are provided for remote power failure indication. One normally open and one normally closed
contact are connected to three terminals on the terminal board for connection to the remote alarm system.
The charger is factory tested and preset so that no field adjustments are necessary. Potentiometer (s) are provided for
adjusting the float and equalizing voltages to the required levels. Should further field adjustments be necessary the float
voltage may be adjusted by moving the red slider band on the voltage divider resistor RV1. Moving the slider toward the
green slider or toward RV2 raises the taper and shutdown point and moving the slider in the opposite direction lowers the
point of shutdown. The green slider band is the equalizing voltage adjustment and may be adjusted in the same manner
as the float slider.
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