Fluke 8505A - Page 65

Instructions (SSOSA,
8508A) (coni)
Commands KO
(store
dc volts zero)
and K1
(store ohms zero)
can be
used with either
the 8505A or the
8506A.
However, the
zero
value
is stored
in the following
new fashion:
1 .
If
Calibration mode
is on
(G5
response
=
1),
any
zero value entered
with the KO
or K1 command
is stored
directly in the
Calibration
Memory and retained
until
a new value is stored
during Calibration
mode
on.
Software calibration
uses this procedure
and
is fully described
in Appendix
7B.
2.
If Calibration
mode is off
(G5 response
=
0),
any zero value
entered with the
KO or K1
command is
stored in
a
separate,
temporary
memory. These
values do not
affect the values
stored in
Calibration
Memory. The
temporary zero
values are retained
and applied
to subsequent
readings until
the multimeter
is powered-off
or
reset. The
temporary zero
values are all
reset to 0 at power-up
or reset.
3.
Whenever the KOorKI
command is
used
(Calibration
mode on or
off), a separate
zero value
can be stored
for
each range.
a. If Calibration
mode is
on, the zero
value is
stored for the
range selected
without affecting
the value
for any
other range.
b. If Calibration
mode is off,
any zero value
stored
is applied
to the existing
range and
all higher ranges
in the same function.
Therefore,
separate
values for
each range
can
be
entered
by using
KO (or K1
)
sequentially
for
each range (from
lowest
to highest).
The
following additional
store commands
are
available
for the 8505A or
the 8506A:
1. K N
G :
Keep
gain correction
on this range.
This command
is used
when storing
calibration
gain
correction factors
with Calibration
mode on.
Software
Calibration
(Appendix
7B) deals with
this
procedure in
detail.
2.
K N D : Keep the following six
digits
as the calibration
date or the
multimeter
identification.
Any
value
totaling
999999 or less
can be entered
(with Calibration
mode on).
Zeros are
not suppressed if less
than
six digits are entered.
The full
procedure
is
defined in Software
Calibration
(Appendix
7B).
3. K 3 : Keep the
error response
message.
This
command allows
the operator
to specify
the response for
an
error condition.
These
characters
(instead of
the actual
reading)
are then
automatically returned
whenever
an error condition
occurs.
For example,
the
word ERROR
or an obviously
illegal response
value (such
as 1E20) can
be programmed
as
the error response
message.
The desired
response
must be
reprogrammed after
a power-up
or reset
condition
occurs. The
multimeter
returns 0 as
the error message
if no other
message has
been
programmed.
The actual error
can
only be identified
as the first
and second
characters of the
G1
(Get Status)
response.
The following
rules must
be followed
when making
the K3
entry:
a. A maximum
of any
15 characters
(excepting
immediate
and
termination
characters)
can be
programmed
following
the
K3 command.
Spaces can be
used as part of
the 15 character
total.
Characters
in excess
of 15 are
ignored
by the
multimeter
and do not
cause an error
condition.
b. Nulls are discarded
and not
stored. Nulls
are not
counted for
the 15 character
limit.
c.
Any
immediate
character (including
termination
characters)
terminates
and executes
the string
normally.
d. The
$
command is an
immediate
character
only when
used with
the Bit Serial
Interface (Option
-
06).
With
the IEEE-488
Interface
(Option
-05) or Parallel
Interface (Option
-07),
$
is
not an
immediate
character
and can
be used
as part of
the K3 command
string.
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