Tektronix 2247A

]
i-3
eg
ROS
Performance Check Procedure
l- VOLTS >| Cursor Accuracy
Set:
CH 1 VOLTS/DIV O.1V
SEC/DIV 0.5 ms
Select CURSOR VOLTS menu, then select # VOLTS,
Connect
calibration
generator
(PG
506)
output
to
the
CH
1
input
via
a
50
2
precision
BNC
coaxial
cable.
Set calibration generator to Std Ampl 0.5 V.
Position
bottom
of
the
signal
to
the
second
horizontal
graticule
line
from
the
bottom.
Position
the
reference
cursor
to
the
bottom
of
the
signal
and
the
delta
Cursor
to
the
top
of
the
signal
(both
cursors
move
with
the
K-
OR
DELAY
control)
.
CHECK—that
the
readout
Is
between
0.493
V
and
0.507
V.
th
VOLTS-4
Cursor
Accuracy
Select
CURSOR
VOLTS
menu,
then
select
“7
VOLTS.
Position
the
“4
control
to
align
the
delta
cursor
with
the
top
of
the
waveform.
CHECK—that
the
readout
Is
between
0.493
V
and
0.507
V
and
none
of
the
cursors
move
when
the
k-
OR
DELAY
control
Is
rotated.
Tracking Cursors Position Accuracy
Press CLEAR DISPLAY twice.
Press
the
CURSOR
VOLTS
button
to
display
the
CURSOR
VOLTS
menu.
Press
the
(TO
AUTO
TRACKING
MENU)
button.
Press
the
TRACK
TRIG
LVL
and
TRACK
/#
buttons
so
that
those
functions
are
underlined.
Press
the
(MENU
OFF)
button
to
clear
the
menus.
Set
Trigger
MODE
to
AUTO
(not
AUTO
LEVEL).
Adjust
Trigger
LEVEL
control
to
align
trigger
level
cursor
with
the
bottom
of
the
signal.
2247A
Operators
7-49