Kussmaul Electronics 091-9-2000 - Manual (Page 2)

INTRODUCTION
The AUTO CHARGE 2000 is a compact, completely automatic, dual channel
battery charger designed for vehicles with two batteries. The charger is rugge-
dized to withstand the shock and vibration encountered by vehicle mounted
equipment. The Auto Charge 2000 Pump Plus operates an 091-9 air compressor. With the
selector switch in the AC position the compressor runs only when the AC power is applied.
With the selector switch in the DC position the compressor will operate when the AC power
is on or off. In either position the compressor operates from the vehicle’s batteries, the Pump
Plus automatically recharging the batteries as required.
The battery charger features:
• Independent charge controls for each battery
• Electronic remote sensing of true battery voltages, eliminates the need
for sensing wires
• Automatic current limiting and apportionment
• Built-in BATTERY SAVER
• Remote dual battery charge/condition indicator
• Power “ON” LED indicator
• BATTERY SAVER overload indicator
DESCRIPTION
Independent Charge Controls & Electronic Remote Sensing
The charger contains two independent charge controls, one for each battery.
This allows each battery to be independently charged while maintaining battery
isolation. Each battery voltage is remotely sensed, electronically, eliminating the
need for four sense wires. Each of the charge controls is completely automatic and
stops charging the battery when it is fully charged. There is no trickle charge and
therefore no danger of overcharging and water boil-off.
Automatic Current Limiting & Apportionment
The charger contains automatic current limiting at 15 amperes. This is a total
current limit for the two batteries combined. The charger automatically apportions
the current to each battery. Either battery can draw the total 15 amperes. When
charging unequally charged batteries, the lower charged battery receives a higher
charge rate. When the batteries are equal, the current is shared equally until they
are fully charged at which time the current goes to zero.