Schumacher 10000A - Manual (Page 11)

11
This battery charger has a built-in
alternator tester that displays either an
accurate alternator voltage or an
estimate of the alternator’s relative
output compared to normal alternators.
The Alternator % values displayed
should be taken as general reference,
not precise diagnosis. The alternator
tester functions the same as the battery
tester (see previous section of this
manual for details) with a few differ-
ences.
TESTING SEQUENCE
There are three basic steps required to
use the 10000A as an alternator tester.
1. Connect the charger battery clamps
to the battery or charging system. Be
sure to follow all of the precautions
listed under “OPERATING INSTRUC-
TIONS”.
2. Connect the charger power cord to a
120 VAC outlet. Again, be sure to
follow all of the precautions listed
under “OPERATING INSTRUC-
TIONS”.
3. Start the vehicle and turn on the
vehicle’s headlights. Read the voltage
USING THE BUILT-IN ALTERNATOR TESTER
on the digital LED or press the
display mode button to set the tester
to “Alternator %” and read the
alternator percent.
TESTER STATUS LEDs
When the 10000A is operating as an
alternator tester, the status LEDs light
under the following conditions.
• The CHARGED (green) LED will light
if the output of the charging system is
at the normally desired level.
• The CHARGING (yellow) LED does
not light in the alternator test mode.
• The CHECK (red) LED lights if the
voltage is much higher or lower than
normally desired.
• When the tester display mode is set
to voltage, none of the status LEDs
light (it could be testing a battery or
an alternator).
ALTERNATOR TESTING NOTES
• The alternator percent display can
range from 0 to 199.
• The display mode cannot be set to
“Alternator %” during charging.
OVERVIEW
The 10000A has an engine start
function that can be used to jump start
your vehicle if the battery is low by
providing 100 amps of current to assist
engine cranking.
STARTING SEQUENCE
There are a few basic steps involved
when using the engine start function.
1. Connect the charger battery clamps
to the battery or charging system. Be
sure to follow all of the precautions
listed under “OPERATING INSTRUC-
TIONS”.
2. Connect the charger power cord to a
120 VAC outlet. Again, be sure to
follow all of the precautions listed
USING YOUR ENGINE STARTER
under “OPERATING INSTRUC-
TIONS”.
3. Press the CHARGE RATE button
until the 100A START indicator is lit.
4. Crank the engine until it starts or 5
seconds passes.
5. If the engine did not start, wait for the
charger to cool then repeat step 4.
During the starting sequence listed
above, the charger is set to one of three
states.
1. Wait for cranking - The charger
waits until the engine is actually
being cranked before delivering 100
amps for engine start. The charger
delivers charge at a rate of 20 amps