Fluke 93 Service Manual page 76

PERFORMANCE
VERIFICATION
PROCEDURE 4-7
Proc^durd
for
channel
A
rice
time
meaaurament:
Refer
to
the settings/procedure
for
channel
B measurement.
Requirements:
Refer
to
channel
B
requirements.
10/11/12/13.
Frequency response
These
tests
check
the
upper
transition
point of the
bandwidth
for
ScopeMeter
vertical
channels
Aand
B.
Test
equipment:
Tektronix
SG
503
Constant Amplitude Sine
wave
Generator
Test setup:
Procedure/requirements
for
channel
A
frequency response measurement:
A
Apply
a 50 kHz
sine
wave
with
an
amplitude
of
120
mV
peak-to-
peak
to
channel
A.
Use a
501^
termination.
Adjust the input signal
to
a
trace height of exactly
6
divisions.
B
Without changing
the
amplitude
of
the
sine
wave
signal,
switch
over
to
step
1
1
using the
upper
select/adjust
key.
Increase
the
frequency
of
the sine
wave
to
50
MHz
and
venfy
that
the
vertical deflection
is
4.2 divisions or
more.
Procedure/requiremente
for
channel
B
frequency response
measurement!
C
Apply a 5D
kHz
sine
wave
with an amplitude
of
1
20
mV
peak-to-
peak
to
channel
B.
Use
a SOiZ
termination.
Adjust
me
input signal
to
a
trace height of exactly 6
divisions.
0
Without changing
the
amplitude
of
the sine
wave
signal, switch
over
to
step
13 using
the
upper
select/adjust
key.
Increase the frequency
of
the sine
wave
to
50
MHz
and check
that
the
vertical deflection
is
4.2 divisions or
more.