Seintek S2800 - Ground Circuit; Alt Output

10-25
10.3.9. Ground Circuit
Measures and compares the ground connection voltage of a device.
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Ground Circuit
GROUND CIRCUIT
BLACK TO BATTERY – (NEG).
RED TO GROUND
CONNECTOR OF THE
SENSOR OR TEST POINT.
TEST: RUN THE ENGINE.
To battery - (neg)
To ground connector of test item
Monitor the voltage drop that
should be less than 0.1V.
Normal Ground Circuit waveform
10.3.10. Alt Output
Measures and compares the alternator output voltage with the engine running.
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Alt Output
ALT OUTPUT
BLACK TO BATTERY – (NEG)
RED TO BATTERY + (POS)
To battery - (neg)
To battery + (pos)
Conduct this test with engine
running and A/C off.
Normal Alt Out waveform