8505A/8506A
Tab!® 2A-2. Programming
Instructions (S505A,
6506A) (cont)
2. Initial function
was V, Z, or I
—
New
function is
ac or ac+dc volts:
a. Filter mode
off
(FO) is
set.
b.
No
sample setting is allowed.
c.
Zero
mode is off.
3. Initial function was ac or
ac+dc volts
—
New function
is V, Z, or I:
a.
Filter
mode on (F) or off (FO) is
retained.
b. Sample S7 is set.
4. Initial function
was
ac
volts
—
New function
is
ac volts:
a.
If
the initial and new
functions are
both
ac
volts
(or
both ac+dc volts),
manual ranging
mode is
retained at the same range,
or
autoranging
is retained (starting
at the
same range).
b. If the change
is between an
ac volts function
(VA,
VA1
,
VA2) and
an ac+dc volts function
(C,
Cl
,
C2), autoranging is
automatically
enabled.
c. For all types of change
(ac to
ac, ac+dc to
ac, ac to ac+dc,
or ac+dc to
ac+dc), Averaging
mode
(extended resolution)
and all other
modes and values
are retained.
No sample
change is allowed in
any
8506A ac volts function.
The following
commands are used when
initially
selecting
an 8506A
ac volts function:
1. V A:
VAC
Normal
2. V A 1
:
V AC Enhanced
3. V
A 2 : V AC High Accuracy
4.
C :
V AC
Normal (DC Coupled)
5. C 1
:
V AC Enhanced
(DC Coupled)
6.
C 2 : V AC High Accuracy
(DC Coupled)
NOTE
AC
volts function commands
used with
the 8502A/AT
are compatible
with the 8506A. However,
the six
function
commands mentioned
above allow
for faster,
direct entry
into
the
desired 8506A
ac
volts mode.
If
the 8506A is already
in an ac volts
function,
an abbreviated
command
can
be used when selecting
either of the other
two
ac volts functions. When selecting
between
ac or
dc coupling
for ac volts,
the full command string
mentioned
above must
be used.
The
abbreviated
commands
are as follows:
1.
SO: VAC
Normal
2.
S
1
: V AC Enhanced
3.
S 2 : V AC High
Accuracy
i?
2A-24
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