Bosch MOT 240 Bedienungsanleitung Seite 87

Example: multi-oscilloscope mode
F1/2: Adjustment of the Y amplification (change-over of the
measuring range)
Measuring ranges:
- secondary side:
- primary side:
- red clamp (B+):
- red multi-clip:
- current clamp-on
pickup 1000 A:
- current clamp-on
pickup 20 A:
- current measuring
shunt:
Remarks:
All oscilloscope measurements are taken to the black terminal B-
(engine ground).
F3/4: Modification of the picture position (Y position). Dis-
placement of the picture (zero line) in 10 % increments
upwards and downwards.
F5/6: Adjustment of the X deflection (time axis) for time
measurements possible according to the check program:
5 ms, 25 ms, 125 ms, pulse duty factor in % (g), 1 s,
2 s, 5 s
720° crankshaft (by switching on individual picture:
degree division dependent upon the number of cylin-
ders)
50 kV, 25 kV, 10 kV, 5 kV
500 V, 250 V, 100 V, 20 V
40 V, 20 V, 10 V, 2.5 V
40 V, 20 V, 10 V, 2.5 V
1,000 A, 500 A, 200 A, 50 A
20 A, 10 A, 5 A, 2,5 A
500 mA, 250 mA, 100 mA, 50 mA
5.4.2 Pre-trigger (adjustment of the picture head)
Only in case of switching on individual picture in the ignition
oscilloscope (adjustment at works on 60 % possible) and in multi-
oscilloscope (adjustment at works on 0 % possible).
F1/2: the adjustment of the pre-trigger corresponds to the
picture head and of the picture displacement on the X axis
in 10 % increments.
Example: If test procedure is to be shown before or after the
trigger event, the pretrigger can be set to 90%, for example.
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