HP HP 8712ET, User Manual, Page: 123 / 480

ET User’s Guide 4-5
Using Instrument Functions
Using Markers
To Activate Markers
1. Press the key to activate marker 1.
2. To activate markers 2 through 4, use the softkeys. For example, press
softkey to activate marker 3. To activate markers 5 through 8,
first press and then the softkey that corresponds to
the marker you wish to activate.
3. Each marker, when activated, is either placed at its previous x-axis
value, or at the center of the x-axis.
NOTE
Active Marker Definition
Although there may be up to eight markers on the display screen at one
time, only one marker can be "active" at any given time. The active
marker is designated by a triangle pointing down (
∇
) with the marker
number above it. Any other markers on the display are inactive and are
designated by a triangle pointing up (
∆
) with the marker number below
it. Any marker can be made active by selecting its corresponding softkey.
The active marker's values are always displayed in the upper-right
corner of the display screen, and you can modify the stimulus value of
the active marker using the front-panel knob, the
keys, or
the numeric keypad.
To Turn Markers Off
1. All markers can be turned off by pressing .
2. To turn off an individual marker, make it the active marker by
pressing its corresponding softkey, and then press
(accessed by pressing if
necessary).
MARKER
3:
More Markers
MARKER
All Off
Active Marker Off More Markers