KUSSMAUL 091-89 User manual

INSTRUCTION MANUAL
KUSSMAUL ELECTRONICS CO., INC.
170 CHERRY AVE., WEST SAYVILLE, N.Y. 11796
TEL: in NY 631-567-0314 TOLL FREE: 800-346-0857 FAX: [phone]
AUTO CHARGE
4000
AUTOMATIC BATTERY CHARGER
3 YEAR WARRANTY
NOTE : This charger is designed for vehicles with
dual batteries and negative ground.
INPUT :120 volt, 50/60 Hz, 8 amps
OUTPUT: 40 AMPERES
MODEL #091-89-12
file:091-89-12.p65
Rev.A
10-27-2004

INTRODUCTION
The Auto Charge 4000 is a compact, completely automatic, dual channel battery charger
designedforvehicleswithadualbatterysystem.Thechargerisruggedizedtowithstandthe
shock and vibration encountered by vehicle mounted equipment.
Charger features:
• Independent charge controls for each battery
• Electronic remote sensing of true battery voltages, eliminates the need
for sensing wires
• Automatic current limiting
• Built-in BATTERY SAVER
• Remote dual battery charge/condition indicator
• Power “ON” LED indicator
• BATTERY SAVER overload indicator
CHARGE CONTROLS & ELECTRONIC REMOTE SENSING
The Auto Charge 4000 contains two independent charge controls, one for each
battery. Automatic electronic remote sensing measures the true voltage of each
battery, eliminating the need for the additional sense wires. The output current of
any charger is inherently a series of pulses whose frequency is determined by the
power line frequency. Therefore there are brief intervals during which no charging
current flows. During this brief interval the Auto Charge 4000 measures and stores
thebatteryvoltage.Thisvoltageiscomparedtoastandardandanyerrorisdetected
and used to control the charger output to the desired level. There is no "trickle
charge" and therefore no danger of overcharging and water boil-off.

BATTERY SAVER & INDICATOR
A 5 ampere BATTERY SAVER is built into the charger. When connected as shown
intheinstallation wiring diagram, loads onthebattery such as radios andrecharge-
able hand lights are automatically switched to the BATTERY SAVER when power
is applied to the charger. The BATTERY SAVER allows more efficient charging by
removing these loads. A BATTERY SAVER overload indicator alerts the operator
that the BATTERY SAVER load has exceeded 5 amperes.
WHEN A BATTERY SAVER OVERLOAD OCCURS:
a. Remove the loads for approximately two minutes
b. Reduce the load to 5 amperes or less
c. Reapply the load to the BATTERY SAVER
No fuses are required or provided as the BATTERY SAVER contains an automatic
circuit breaker.
AUTOMATIC CURRENT LIMITING
When batteries are severly discharged, some battery chargers can be overloaded
due to the high charging current required. The Auto Charge 4000 contains an
automaticcurrentlimit.Thiscurrentlimitstheoutputcurrenttotherated40amperes
when charging a deeply discharged battery or if the starter cranks the engine while
charging. The current limiter thus eliminates the need for an ignition interlock
circuit.

REMOTE BATTERY CHARGE CONDITION INDICATOR
This remote indicator shows the charge condition of each battery in 10 levels from
“LOW CHARGE” to “FULLY CHARGED”. This device indicates a defective battery
when a bar graph does not rise to the “FULLY CHARGED” level after an extended
period of charging.
NOTE: If a battery is being discharged with an external load of 1.5 to 6
amperes across it’s terminals, the bar graph may move down 1 or 2
levels. This does not indicate a defective battery.
To avoid this, connect all external loads to the BATTERY SAVER
terminals.
Loads connected to the BATTERY SAVER will be powered either from
the BATTERY SAVER power supply when the A.C. power is “ON”, or
they will be connected to battery #1 when the A.C. power is “OFF”.