HP 54501A Getting Started Manual page 18

è Rotate the knob.
As the knob is turned the trigger level value is
changed.
The trigger level is a horizontal
dotted line that moves up and down
as the knob is turned.
e Set trigger level to -650 mvolts.
Enter this value with the keypad.
e Press SHOW key.
Key is located at the right of the oscilloscope in the
SETUP section.
Channel and trigger setup
information is displayed.
e Press SHOW key.
Return to trigger menu.
Instant Setup HP 54501A, HP 54502A and HP 54503A
3-8 Getting Started Guide