Ac Volts Calibration; Troubleshooting; Initial; Flow Chart - Fluke 8600A Instruction Manual

8600A
Table 4-8.
AC VOLTS CALIBRATION
PROCEDURE
STEP
8600A
RANGE
INPUT
VOLTAGE
REQUIRED
INPUT
FREQUENCY
REQUIRED
ADJUSTMENT
8600A DISPLAY
LIMITS
1
Simultaneously
select
the
ACMA
and
DCV
FUNCTION
switches. *
2
1200V none none
R72
-20.0
to
-30.0
3
Select the
VAC
FUNCTION
switch
on the front
panel.
4
2
1.9000V
500Hz R50
1.8998
to 1.9002
5 2 0.9000V 500Hz none
.8997
to
.9003
6 200
190.00V
500Hz none
189.90
to
190.10
200
190.00V
50kHz C2
189.95
to
190.05
2 1.9000V
50kHz C19
1.8995
to 1.9005
9
Repeat
steps
7 and 8
until
both
are
within
limits
10 2 1.9000V
100kHz none
1.8875
to
1.9125
11 2
1.9000V
30Hz
none 1.8950
to
1.9050
20
19.000V
500Hz
18.990
to
19.010
n
,
20 19.000V 50kHz 18.990
to
19.010
14
200mV
1
90.00m
V
50kHz
189.80
to
190.20*1
15
200m
V
1
90.00m
V
500Hz
none 189.85
to
190.15*'
16
200m
V
39 .00m
V
500Hz none
38.90
to
39.10*'
17
1200V
1000.0V
500Hz
none
998.0 to 1002.0
18
1200V
1000.0V
20kHz none
996.0
to
1004.0
*
Simultaneous
selection of
both function switchesconnects the
positive
25m
V AC
Converter
offset
to the
A-D
Converter
auto zero input.
The A-D
Converter action causes the negative display
of
STEP
2.
I**
200MV LED
on
the display should be
on.
4-35.
Initial
Troubleshooting
4-36.
The
troubleshooting techniques given
below
should be
completed
as
the
first
step
toward
repairing
any apparent malfunction
in
the
unit.
Improper
opera-
tion
may
not always be caused
by
failures
within the
8600A. The
following reminders of
basic fault isolation
techniques
will
help determine
if
the cause
is
the
result
of an
internal
failure
or faulty external connection.
a.
Carefully
check
the
8600A
control
settings:
some
false indications
may
be caused by an
incorrect or overlooked control
setting.
b.
Check
associated
equipment:
insure that
associ-
ated
equipment
controls
and connections
are
correct.
d.
Carefully inspect the
interior
of the instrument:
check
for physically
damaged
parts,
loose or brok-
en
wires,
and
improperly
seated plug-in assem-
blies.
4-37
When
it
has been determined by
the
above checks
that the
malfunction
is
within the
8600A
multimeter,
the
following
procedure should be used
to isolate
the
problem
area.
The
recommended
test
equipment
for trouble-
shooting
this
instrument
is
listed in
table 4-1
.
A
trouble-
shooting
flow
chart
is
included
in figure
4-2
as
an
aid in
repairing the instrument.
Performance
tests
given
in
the
beginning
of
this
section
are
referred to
by
paragraph
number
and
table
number.
Tests contained
in
the
following sections are referred to
by
paragraph
number.
In
addition portions of
the
theory of operation
section
relevant to the correct
operation of
the circuitry in
question
are referred to
by paragraph number.
NOTE
Refer
to
the appropriate schematic for the
elec-
c.
Check
the
8600
A performance: the
performance
trical
location of
test
points
specified.
Physical
test (par. 4-14)
will
determine
if
the
malfunction
test
point connectors
may
not appear
on some
is
in
the
8600
A. pcbs.
4-6
1/77