Tektronix 2247A

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Performance Check Procedure
Set the tlme-mark generator for 1 jis time markers.
CHECK—the
time
markers
are
between
two and
four
divisions
high
on
the
2247A
crt.
Press
the
CURSOR
VOLTS
button.
Select
(TO
AUTO
TRACKING
MENU).
Select
TRACK
TRIG
LVL.
Select
(MENU
OFF)
to
remove
the
menu.
Press the COUNTER/TIMER button. Select PERIOD.
NOTE
For
all
of
the
following
steps,
the
Trigger
level
cursor
must
be
in
the
middle
of
the
waveform.
CHECK—the
Trigger
tracking
cursor
falls
In
the
middle
of
the
waveform.
If
not,
set
A/B
SELECT
to
B
and
press
the
TRIGGER
MODE
t button.
CHECK
again.
CHECK—for
a
readout
between
0.999,989,9
1s
(or
999.989,93
ns)
and
1.000,010,1
ps.
Disconnect the test equipment from the 2247A.
Width
Set:
VERTICAL MODE CH 2 (CH 1 off)
CH 2 VOLTS/DIV O.5V
CH 2 INVERT Off
A SEC/DIV 20 ns
A/B SELECT A
A
SLOPE Ss
A TRIGGER MODE AUTO LEVEL
A TRIGGER SOURCE VERT
A TRIGGER CPLG bc
Set the time-mark generator (TG 501 Option 01) to 0.1 ps.
2247A
Operators
7-57