A
djustment
Program
The
adjustment
program
listed
in
T
able
1-1
is
required
for
the
adjustments
.
Using
the
program,
the
computer
controls
the
4339B
and
the
other
pieces
of
equipment
to
obtain
the
adjustment
data,
and
stores
the
data
in
the
4339B 's
internal
EEPROM,
A2U1.
The
adjustment
program
runs
on
the
computer
listed
in
T
able
1-1.
The
program
should
be
installed
into
your
computer
according
to
the
procedure
described
in
\Program
Installation
".
T
o
start
the
program
after
it
has
been
installed,
refer
to
\Program
Execution
".
Figure
2-1
shows
the
adjustment
program
ow
.
The
following
lists
the
brief
explanation
for
each
menu
item.
At
the
end
of
each
adjustment,
the
program
writes
the
obtained
adjustment
data
both
to
the
4339B
internal
EEPROM
and
to
the
unit-serial-number
dependent
le
on
the
disk.
Figure
2-1.
A
djustment
Program
Flow
INITIAL
SETUP
denes
the
standards'
calibration
values
.
Update
the
calibration
values
as
necessary
.
Source
V
oltage
A
djustment
obtains
the
data
to
adjust
the
actual
source
output
voltage
equal
to
the
set
value
.
This
adjustment
should
be
performed
if
the
performance
test,
Source
V
oltage
A
ccuracy
T
est,
fails
.
Ammeter
A
djustment
obtains
two
kinds
of
the
ammeter
related
factor
,
the
input
resistance
and
scaling,
and
a
voltage
source
related
factor
,
the
output
resistance
.
This
adjustment
should
be
performed
if
any
performance
test
fails
.
Rewrite
EEPROM
writes
the
adjustment
data,
which
is
stored
in
a
unit-serial-number
dependent
le
,
to
the
EEPROM.
Only
the
adjustment
data
of
previously
adjusted
item(s)
will
be
written.
Note
Make
sure
that
the
correct
line
frequency
(50
or
60Hz)
has
been
selected
in
the
\UUT:
4339B"
window
preceding
the
Main
Menu.
This
selection
will
improve
the
adjustment
data
accuracy
.
Adjustments
2-3
