Tektronix 475 Technical Manual

TM 11-6825-2735-14-1
TABLE 5-4
Delay Time Settings
DELAY TIME
A TIME/DIV
B TIME/DIV
1
Time-Mark
POSITION
Switch
Switch
Generator
Exclusions
Setting Setting
Setting
Exclude dial 0.05
0.01
50 nanosecond
settings of
0.1
0.01 0.1 microsecond
0.000 through
0.2
0.02 0.2 microsecond
1.000
0.5
0.05 0.5 microsecond
1
0.1
1 microsecond
Exclude dial
settings of
0.000 through
0.050
2
0.2 2 microsecond
5
0.5
5 microsecond
10
1 10 microsecond
20
2
20 microsecond
50
5
50 microsecond
0.1 ms
10
0.1 millisecond
0.2 ms
20
0.2 millisecond
0.5 ms
50 0.5 millisecond
1 ms
0.1 ms
1 millisecond
2 ms
0.2 ms
2 millisecond
5 ms
0.5 ms
5 millisecond
10 ms
1 ms
10 millisecond
20 ms
2 ms
20 millisecond
50 ms
5 ms
50 millisecond
0.1 s
10 ms
0.1 second
0.2 s
20 ms
0.2 second
0.5 s
50 ms 0.5 second
1
If the time-mark generator being used does not have a 1-2-5 sequence, set for 1 or more time marks/division on
DELAY TIME POSlTION dial.
27. Check Delay Time Jitter
a. Set DLY’D SWP to 0.2 set A TIME/DIV to 1 ms
and set time-mark generator for 1 millisecond time marks.
b. Set DELAY TIME POSITION to 1.000 on dial and
position nearest time-mark to graticule center.
c. CHECK—That jitter on the leading edge of the time
mark does not exceed 1 division (60 Hertz line) or
2.5 division (50 Hertz line).
d. Set DELAY TIME POSITION to view each time-mark
from 2.000 to 9.000 on dial and check delay time jitter for
limits stated in part c.
28. Check MIX (Mixed Sweep) Timing Accuracy
a. Set DLY’D SWP to 0.02 A TIME/DIV to 0.05
HORIZ DISPLAY to MIX and DELAY TIME POSITION fully
clockwise.
b. Set time-mark generator for 50 nanosecond time-
marks.
5-18
c. CHECK—A TIME/DIV settings from 0.02 to
0.5 s/division for accuracy at 2nd and 10th graticule lines
(8 division timing), within 3%. Exclude the first 0.5 division
from start of sweep when checking A sweep. Set DLY’D
SWP at least 1 sweep setting faster than A sweep setting
on all ranges. Set time-mark generator to maintain
appropriate time marks.
d. Set DELAY TIME POSITION fully coun-
terclockwise, DLY’D SWP to 0.05 A TIME/DIV to 0.1
and set time-mark generator for 50 nanosecond time
marks.
e. CHECK—DLY’D SWP settings from 0.05 to
0.5 s/division for accuracy at 2nd and 10th graticule lines
(8 division timing), within 3%. Exclude the first 0.2 division
or 0.1 microsecond (whichever is greater) after the transi-
tion of A to B. Set DLY’D SWP at least 1 sweep setting
faster than A sweep setting on all ranges. Set time-mark
generator to maintain appropriate time marks.
f. Disconnect all test equipment.

Tektronix 475 Specifications

General

Brand	Tektronix
Model	475
Category	Test Equipment
Language	English