Fluke 123 - Using Vertical Cursors on a Waveform

Fluke 123/124/125
Service Manual
3-6
ST7968.WMF
Figure 3-2. Menu item selection
If an item is selected, it is marked by . Not selected items are marked by □ If a selected
item is highlighted, an then
is pressed, the item remains selected.
You can also navigate through the menu using
. To conform the highlighted item you
must press
.
Before performing the Input A and Input B tests, the test tool must be set in a defined state,
by performing a RESET.
Proceed as follows to reset the test tool:
• Press
to turn the test tool off.
• Press and hold
.
• Press and release
to turn the test tool on.
Wait until the test tool has beeped twice, and then release
. When the test tool has
beeped twice, the RESET was successful.
For most tests, you must turn Input B on. Input A is always on.
Proceed as follows to turn Input B on:
• Press
to open the Meter B menu.
• Using
select INPUT B: □ ON .
• Press
to confirm the selection; the □ mark changes to ■ . The active setting from
the next item group will be highlighted (for example 
Vac ), and maintained after
leaving the menu.
• Press
to exit the menu.
3.5.1 Input A and B Base Line Jump Test
Proceed as follows to check the Input A and Input B base line jump: