Seintek S2800 - DI Primary; DI Secondary

10-22
10.3.3. DI Primary
Measures and compares the ignition waveforms for all cylinders on standard Distributor ignition
systems.
Path:
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DI Primary
DI PRIMARY
BLACK TO ENGINE CHASSIS
RED TO NEGATIVE SIDE OF
THE IGNITION COIL
To engine (chassis)
To -(neg) side of
coil primary
Look for abnormally long or short
dwell periods in the waveform.
Normal DI Primary waveform
10.3.4. DI Secondary
Measures and compares distributor ignition secondary waveforms.
* You need optional capacitive pick-up to measure DI Secondary.
Path:
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DI Secondary
DI SECONDARY
CONNECT THE CAPACITIVE
PICKUP AND INDUCTIVE
PICKUP
Around test point
Compare measured waveform
with reference waveform.
Normal DI Secondary waveform