Bosch CP009 User Manual download pdf (Page 125)

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Page 42

DS2020

User’s Guide

NOTICE

You will find the inscription 'This side to the spark plug' on one side of the

clamp. Connect the clamp to the spark plug cable of cylinder #1 so that the

inscribed side faces the #1 cylinder spark plug. The spark plug that is nearest

to the generator is usually the #1 plug.

When the clamp is connected properly and the clamp picks up the trigger well,

then DS2020 will indicate it by flickering the ground mark (▼) on screen.

When the clamp is not connected properly, a waveform may still be displayed but

without or incorrect cylinder numbers. In case the high tension cable is not

available or the #1 cylinder doesn't ignite, the clamp should be connected to the

spark plug cable of the other cylinder. The ignition order will then be determined.

DS2020 recognizes the cylinder to which the trigger pickup clamp is

connected to be Cylinder #1. The ignition order of 4-cylinder engines is usually 1-

3-4-2. For example, if the clamp is connected to cylinder #3, the ignition waveform

will be displayed in a row as 3-4-2-1 while DS2020 still displays the

2) Primary Ignition Signal

 Connect the probe with needle to the negative (-) line of the PRIMARY

ignition coil

 Plug the other end to

DS2020

's channel 1 port

ILL. 4-3. Cable Connection for Primary Ignition Pattern

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Bosch CP009 User Manual Page 125