Tektronix 2236 User Manual

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Operating
Procedures - 2236
Operators
3. Set the
appropriate VOLTS
/ DIV switch and
variable
control for an exact 5 - division display .
C
B
4. Vertically
position the
trace so
that the zero
reference
of the waveform touches the % graticule line and the top of
the waveform touches the 100 % graticule line .
100
90
5. Set the A SEC / DIV switch to spread out the transition
of
interest as
much as
possible .
6. Select ALT HORIZONTAL MODE and set the B
SEC / DIV switch to the fastest sweep speed that still allows
the intensified zone to overlap the transition of interest .
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7. Set UPPER FUNCTIONS - LOWER FUNCTIONS
switch to OUT and press in the A TIME button .
A
8. Select B HORIZONTAL MODE and adjust the B IN
TENSITY control as desired .
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9. Set the A TIME POSITION control to fully counter
clockwise
position
.
Fig . 4-7
.
Rise
time
.
10. Adjust the
B DELAY TIME
POSITION control
so that
the displayed waveform intersects the center vertical grati
cule line at the 10 % point ( see Figure 4-7 , Point A ) .
This is accomplish by triggering the A Sweep externally on
the reference pulses , and the B Sweep on the pulses whose
timing relationship to
the
reference is to
be determined
. The
measurement is performed from the event triggering the A
Sweep to the one triggering the B Sweep . This is possible
when the time between the pulses to be measured exceeds
500
ns .
11. Adjust the A TIME POSITION control so that as the
waveform splits into two , the left most one ( corresponding
to the longer
of the two
delay times )
intersects the
center
vertical graticule line at the 90 % point ( see Figure 4-7 , Point
B ) .
1. Preset controls & obtain baseline trace . Set the A
SOURCE switch to EXT , UPPER FUNCTIONS - LOWER
FUNCTIONS switch to OUT , and press in the DELAY TIME
button
.
12. Read the rise time on the readout .
NOTE
2. Apply the
reference signal
to EXT INPUT
connector
and the comparison signal to CH 1 or CH 2 input connector .
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To measure fall time , the procedure is the same ex
cept that the right - most transition display is posi
tioned ( by the B DELAY TIME POSITION control ) so
that it intersects the center vertical graticule line at the
90 % point . The left - most transition is positioned ( by
the A TIME POSITION control ) so that it intersects
the center vertical graticule line at the 10 % point .
3. Press and hold in the TRIG VIEW button , adjust the A
TRIGGER LEVEL to obtain
a stable
display ,
triggered on
the appropriate
edge of
the
reference signal .
4. Select CH 1 or CH 2 VERTICAL MODE and set the
appropriate VOLTS / DIV switch to produce a display of 2 or
3
divisions in
amplitude .
Time Difference Between Pulses On Two Time
Related Signals ( Short Method )
o
Time difference between two time related pulses can of
ten be measured using the triggered delay time technique .
5. Select ALT HORIZONTAL mode and set B TRIGGER
LEVEL control to fully clockwise position . Position the inten
4-9

Tektronix 2236 Specifications

General

Brand	Tektronix
Model	2236
Category	Test Equipment
Language	English