Tektronix 2247A

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Operators Familiarization
TRACK MEASMT—Press to enable or disable the Channel 1 or
Channel 2 Voltmeter measurement-tracking cursors (SmartCursors®
that show the waveform-measurement points). The state of the
TRACK MEASMT feature does not affect the positionable
ah NOLTS-4 cursor operation. The CLEAR MENU button will not turn
off the TRACK MEASMT feature; It only turns off the present display of
the TRACK MEASMT cursor when It turns off the active measurement
mode. The next time a Channel 1 or Channel 2 VOLTMETER measure-
ment mode Is selected, the TRACK MEASMT cursor or cursors will
again be displayed.
TRACK TRIG LVL—Press to enable or disable the Trigger Level
tracking cursor. See “Conditions for Cursors Display” In this section
for conditions required to display the Trigger Level tracking cursors.
TRACK 7 —Press to enable or disable the ground level tracking
cursor. The TRACK /7 cursor follows the VERTICAL MODE in that It
follows the lowest displayed channel of either CH 1 or CH 2.
SELF CAL TIME MEASMTS-—Self characterizes the horizontal
system. SELF CAL may be performed at any time. Suggested times
are: after a warmup period, whenever the ambient operating
temperature changes by +15°C, and just prior to making any time
measurements requiring the best possible accuracy.
(BACK TO PREVIOUS MENU)—Returns the first page of the
Cursors menu.
(MENU OFF)—Clears the menu from the display.
Time Menus
Press the TIME button to call up the time measurement choices. A
selected TIME measurement mode Is underscored when the menu is
displayed. Only one active measurement at a time Is allowed. Making a
selectlon removes the menu (unless SERVICE mode CONFIGURE menu Is
set to keep menu on when measurement selected). The selected measure-
ment type and value are displayed at the top of the screen.
2247A Operators 3-15