Operating Instructions
—7B53A/7B53AN Operators
Fig.
1-8. Area of graticule used for accurate time measurements.
Time
Measurement
When
making time measurements from the graticule, the
center
eight
divisions provide the most linear time measure
ments (see Fig.
1-8). Position the start of the timing area to
the second
vertical line
and adjust the TIME/DIV OR DLY
TIME
switch so the end of the timing area falls between the
second and tenth vertical lines.
Sweep Magnifier
The
sweep
magnifier can be used to expand the display
ten
times. The center division of the unmagnified display is
the
portion visible on the CRT in the magnified form (see
Fig. 1-9).
Equivalent length of the magnified sweep is more
than
100
divisions; any 10 division portion can be viewed
by
adjusting the POSITION control
to
bring the desired
portion onto the viewing area.
To
use the MAG switch, first move the
portion of the
display
which is to be expanded to
the center of the
graticule.
Then
press and release the MAG switch to
the
OUT
—
X10 position.
When
the MAG switch is in the X10
position, the
equivalent
magnified sweep rate can be
determined
by
dividing
the
Time/Division
setting by 10.
For
example,
if the TIME/DIV OR DLY TIME switch is set
to
1 ms the equivalent sweep rate is 100 µs. When operating
in
the INTEN, DLY'D SWP, or MIXED Display Modes the
delayed
sweep rate as well as the
main sweep rate is
increased 10 times.
Fig. 1-9. Operation of Sweep Magnifier.
Fig.
1-10.
(A)
Intensified Sweep display; (B) Delayed Sweep display.
1-12
