Tektronix 7B92 Instruction Manual page 47

Calibration-7B92 Service
7%
6%
5%
4%
Allowable
Error
3%
2%
1%
4-26
Typical DELAY TIME
1.02
MUL T Dial Setting
Typical Recorded
Error (div/%)
0
Determining Maximum
One·Division Error
Divisions of
Measurement
1
2
Recorded Error of Each Major
DELAY TIME MUL T Dial Division
2.02 3.02 4.02
5.02
6.02 7.02
8.02
-0.4 -0.3 -0.2 -0.1
+0.3 +0.7 +1.2
LJ
09 div
+
- ' - - =045%
2 .
9.02
+1.4
4
' - - - 1.5 :iV = 0.375%-
t
8
1.4 div
---=0.175%
8
NOTE: Percentage figures apply only when delayed sweep rate is 1/100 of the main sweep rate.
Fig. 4-7. Typical delay time error figures.
\
\\
~ ~
........
'\
~
~
r---
(50
I
ns/DIV to 10 ns/DIV)
----
r---
,
i--
~
----
' - (0.2 slDIV)
r--
I
'(0.1 slDIV to 0.1 IlslDIV)
I I I
2 3 4 5
6 7 8
9 10
(Measurement In Major DELAY TIME MUL T divisions)
Fig. 4-8. Allowable delay time error.
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