Fluke 93 Service Manual page 88

PERFORMANCE
VERIFICATION
PROCEDURE
4-19
3.
Trigger
level
control
range channel
A
and
B
•••
All
models
This
test
checks
the
trigger level control
range.
Test equipment:
Tektronix
SO
SOS Constant Amplitude Sine wave Generator
T^st setup:
Sett
inge/procedure/requ Iremente
A
Apply a
500 kHz
sine
wave wHh
an amplitude
o1
950
mV
peak-to-peak
to
channel
A.
Use
a 5012
termination.
B
Switch on the
Scope
Meter
and
press the
SCOPE
key
to get
into
SCOPE
mode.
Now
press the
AUTO
SET
key.
C
Verify that the signal
is
welt triggered.
D
Set channel
A
to
100
mV/div.
E
Press
the
TRIG
3 EH
key.
Use
the select/adjust
Keys
to verify that
the
trigger level
range
Is
more
than 8
divisions (4 divisions
up
and 4
divisions
down).
The
selected
trigger level
Is
shown
on the
display {reversed
Indication
LEVEL*}. Also the
trigger level indication,
marked
with
an Aj~
will shift,
while
shifting
the trigger
level.
See
hgure
4.9.
F
Repeat
the
same
procedure
for
channel
B.
run
Figure 4.9
Trigger
level indication
on
screen