
Fluke 123
Users Manual
![]()
![]()

![]()
![]()
Open the SCOPE INPUTS menu.
Open the PROBES submenu.
Highlight PROBE AC ADJUST.
Open the PROBE AC ADJUST submenu.
Highlight ADJUST 10:1 PROBE.
A square wave appears on the screen.
![]()
![]()
Adjust the trimmer screw in the
probe housing to give an optimum square wave.
Return to normal mode.
42