MAC TOOLS EM721 Manual Del Usuario página 38

Battery Voltage Load Test
This test checks the battery's capacity to deliver sufficient cranking voltage.
Meter setup to measure voltage load:
•
Set the rotary switch to voltage ( ) setting.
•
Press the "DC/AC" button until " " appears on the display.
•
Insert the black lead in the "COM" jack.
•
Insert the red lead in the "
Connect:
•
Black lead to the negative (-) battery post.
•
Red lead to the positive (+) battery post.
Press the "REC" button (selects the MAX.MIN.AVG function).
Disable the ignition so that the engine can't start and crank the engine for 15 seconds. Check the minimum
reading.
A reading of less than 9.40V at 60°F/16°C indicates a weak battery. Recharge or replace the battery before
testing.
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Black
12V Battery
" jack.
Red
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