Solartron 1260 - Page 101

NULL*
Null
on/off/evaluate:
•
[off]
Null
not
applied.
•
[onj
•
Effect
of
stray
inductance
and
capacitance
on
measurement
results
is
removed
in
accordance
with
previously
evaluated
null
values.
•
[evaluate]
Starts
the
null
procedure,
which is:
1 .
In
accordance
with
the
displayed
message,
insert a
shorting
bar.
2.
Press
the
PAUSE/CONT
key.
3
Wait
for
the
message
"Remove
shorting
bar.”
then
do
so.
4.
Press
the
PAUSE/CONT
key.
When
nulling
is
complete
NULL
is set
to
[on]
automatically.
Nulling
may
be
used
with
either
single-point
or
sweep
measurements.
Set
the
input
and
sweep
parameters
before
selecting
[evaluate].
Whilst
the
null
values
are
being
evaluated
some
of
the
generator
and
analyzer
control
parameters
are
set
temporarily
to
settings
which
may
differ
from
those
selected
by
the
user.
However,
a
return
is
made
to
the
user-defined
settings
when
null
evaluation
is
complete.
*DATA
O/P:
FILE
CONFIGURE
CLEAR
must be
in
[auto]
mode
when
null
[on]
or
[evaluate]
is
used.
CONSTS
Nine
user-defined
constants,
for use
with
scaling
facility
.
*
[a, b]
Scaling
by
Cartesian
coordinates.
• [r, 9]
Scaling
by
polar
coordinates.
Scaling
constants
are
numbered
from
1 to
9
inclusive.
This
number
is
entered
by
the
user
when
CONSTS
is
selected.
The
entry
of
[a,
b]
or
[r,
6]
prompts
the
entry
of
user-defined
coordinate
values.
FUNCT
User-defined
scaling
function.
Eighteen
different
functions
may
be
entered,
and
are
numbered
by
the
user
on
entry.
Functions
1 to
9
are
stored
in
the
battery
sustained
memory
and
functions
10
to
18
are
stored
in
the
non-volatile
memory.
New
functions
are
learnt.
Previously
entered
functions
no
longer
needed
may
be
cleared.
The
use
of the
scaling
function
is
described
in
detail
in
Chapter 10,
"Measurement
Scaling”.
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