ITech IT6000C Series User Manual page 85

Starting Waveform
Simulates the effects of rippled DC voltage on DC power when the car is
started. From the constant voltage line in the original standard DIN40839 volt-
age waveform, the voltage curve in t8 duration is upgraded to a curve containing
a 2Hz AC voltage waveform.
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Standards for 12V system:
Curve should be selected based on actual test requirements. To create
waveform within 12V, follow the set standards as below:
I, II, III, and IV defined in the above standard correspond to levels 1, 2, 3,
and 4 in the setup menu.
Standards for 24V system:
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Power Supply Function
74