Oscillogram - Bosch MOT 240 Operating Instructions Manual

5.

Oscillogram

If special measurements with the oscilloscope (screen enlargement
of the oscillogram) or modifications at the setting values, set at
works, should be executed, you must select this function through
the hardkey change-over switch 88/W (measuring program/
oscilloscope). The return to the individual measuring programs is
also carried out with the same „Hardkey".
Example: change-over from the check program injection test
80
Example: change-over from the basic picture
The basic entry into the oscilloscope menu, see the picture.
Signification:
F1: Ignition oscilloscope: to evaluate the ignition system (see
the section 5.1: on the primary or the secondary side).
F2: Multi-oscilloscope: for evaluating the current and voltage
curves of the electronic signals (see section 5.2).
F3: Multi-oscilloscope: To assess current and voltage
characteristics of electronic signals (see Section 5.3).
F4: Default key: To reset the oscilloscope to the settings
specified at the factory (control by the measuring
programs).
F6: Zero point calibration for oscilloscope. The zero point
calibration is only performed for the particular oscillo-
scope input set (where applicable, the corresponding
input must be selected beforehand).
When calibrating the voltage measuring ranges with red
multi-clip, red battery clamp (B+) and green clip (primary
ignition), the corresponding measuring input must be con-
nected to the battery terminal (B-).
When calibrating the voltage measuring range of secon-
dary ignition and measuring the current, the appropriate
sensor must be unclamped from the vehicle.