Fluke 93 Service Manual page 75

6
PERFORMANJCE
VERIFICATION
PROCEDURE
Tost setup channel
6
rise
Hme
measurement:
Proce<iiire for
channel B
rise
time
measurement:
A
Apply a
fast rise time pulse, repetition frequency
1
MHz,
amplitude
0.5V
to
channel
B.
Use
a
50Q
termination. SetUie
generator
In
position
"FAST
RISE*.
B
Adjust the pulse am^^ltude
to exactly
5
divisions.
See
figure 4.4.
Requirements:
A/OTE;
i^(
measured)
=
Inputsigriaf)
^
+
t^{
ScopeMeter) ®
C
Check
the
rise
time,
measured between 10%
and
90%
of the
pulse amplitude.
See
figure
4.4.
The
rise
time
t^
{measured)
must be 7
ns
(0.7
div)
or
less.
Figure 4.4 Rise
time
<o,7div
blbVm
Test setup
channel
A
rise
time
measurement:
Refer
to
the
test
set-up
for
channel B
measurement. Connect
the pulse generator
to
the channel
A
BNC
Input
connector.