Tektronix 7B15 Instruction Manual page 103

Therefore, the specified limits for a measurement interval
of 800 ns are:
800 ns ± 4.3 ns = 795 .7 ns to 804.3 ns
f. CHECK---Follow the procedure outlined in parts c
through e and check for
ln,
TIME accuracy as given in
Table 5-6.
g . Set the 71315 TIME/DIV to 1 ms .
1314 . CHECK/ TIME LINEARITY
NOTE
SETUP CONDITIONS
NOTE
Time Readout
Range
1 .589 ps to 1 .61 1 /is
3.977 ps to 4.023 ps
795.7 ps to 804.3 /is
1 .589 ms to 1 .611 ms
3.977 ms to 4.023 ms
Steps B5, B7, B8, B9, and B10 must have
been performed before proceeding with this
step.
if the preceding step was not performed, first
refer to the Horizontal System Preliminary
Control Settings, then proceed with the
following instructions.
Calibration Part 11--71315
Adjustment and Performance Check
71315 Controls :
B DELAY MODE . . . . . . . . . . . . . . . . . . . . . . B STARTS AFTER DLY
TRACE SEP . . . . . . . . . . . . . . . . . . . . . . . . . . . Out of switch detent
BNC
Cable
Time Base :
Triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto, Ac, Int
Level . . . . . . . . . . . . . . . . . . . . . . . . . Stable display (Trig'd light on)
Time/div . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 us
Mainframe:
Horizontal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Alternate
Vertical Amplifier (HI Freq) . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V/div
Time-Mark Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 ms
a. Position the delaying- and delayed-sweep traces
horizontally to start on the first graticule line .
b. Set the DELAY TIME control to place the first
intensified zone on the time marker that is between the
first and second graticule lines (second time marker).
c. Set the A TIME control to place the second intensified
zone to the time marker that is 0.5 division from the first
intensified time marker (third time marker).
d. Set the A TIME control to precisely align the delayed-
sweep traces .
e. CHECK-A time readout for 0.497 ms to 0.503 ms,
f. Set the DELAY TIME control to position the first
intensified zone to the next 0.5 ms time marker (third
time marker). Then, rotate the A TIME control to precisely
align the delayed sweep traces .
g. CHECK--A time readout for 0.497 ms to 0.503 ms .
h. Set the DELAY TIME control to position the first
intensified zone to the next 0.5 ms time marker (fourth
time marker). Then, rotate the A TIME control to precisely
align the delayed sweep traces .
i . CHECK-----A time readout for 0.497 ms to 0.503 ms .
j. CHECK-.-Use the procedure outlined in parts f through
i and check A TIME linearity at each 0.5 division point
until the first intensified zone is beyond the tenth
graticule line .
k. Set the TRACE SEP control to OFF.
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