Fluke 43B - Input 2 Trigger Level and Trigger Slope Test

43B
Service Manual
4-10
4.5.5 Input 2 Trigger Level and Trigger Slope Test
Proceed as follows:
1. Connect the test tool to the 5500A as for the previous test shown in Figure 4-3.
2. Select the AUTO test tool setup:
• Press
to select the MENU.
• Press
till SCOPE is highlighted.
• Press
to select SCOPE mode
3. Make Input 2 active:
• Press
to select menu SCOPE SETUP.
• Press
to highlight the Input 2 READING.
• Press
to select Input 2 READING.
• Press
to highlight AC+DCrms.
• Press
to confirm;  mark changes to ■.
• Press
to highlight Input 2 Coupling.
• Press
to select the Input 2 Coupling menu.
• Press
to highlight DC Coupling.
• Press
to confirm;  mark changes to ■.
• Press
to return to SCOPE.
4. Select trigger on channel 2.
• Short-circuit Input 1 with a BB120 and a 50Ω feed through terminator.
• Set the 5500A to source 1V, 50 Hz sine wave (NORMAL output, MODE WAVE
sine).
5. Select the following test tool setup:
• Press
to select RANGE, then press to select RANGE 2.
• Press
to select 1 kA/d.
• Press
to select a timebase of 10 ms/d.
• Press
.
• Press to select TRIGGER.
• Using
set the trigger level to +2 divisions from the screen center. For
positive slope triggering, the trigger level is the top of the trigger icon (
).
6. Set the 5500A to source 0.4V DC.
• Press
to select menu SCOPE SETUP.
• Press
to highlight Time base.