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Offset
mode
selected
(DC
Functions
only)
In
Offset
mcxle, the intercept
(c)
may
be
adjusted
to
any
value
within
the
Offset
limit.
Offset Limits: lOOtiV
and
ImV
Ranges:
±200|iV
Other Ranges:
±2%
of
Full
Range
value
Offset
and
Error
Mode
Combination
Offset cannot
be
selected
or deselected
when
the
4708
is
already
in
Error Mode.
The
intercept
(c)
is
established
first
in
Offset
mode,
then
the
slope
(m)
is
adjusted
in
Error mode.
Full
details
of
the operation
of
Error,
Offset
and
the
combined
mode
are
given
in
Section
4.
Test
mode
selected.
Full
details
of
the operations
in
Test
mode
are
given
in
Section
4.
I+,
I-,
Hi,
Lo,
Guard and
4^
(Ground) Terminals
Local and
Remote
Switching
These
terminals are located
on
the
lower
left
of
the
Front
Panel.
1+
and
I-
Terminals
The
output
from
the internal
power
circuits
is
delivered
to
the
1+
terminal,
I-
being
its
Return
Analog
Common.
HI
and Lo
Terminals
These
terminals
provide a
differential
input
to the
amplitude
sensing
circuitry.
Remote
Sensing
The
Remote
Sense key
has
'toggle' action.
Successive
presses
alternate
between
ON
and
OFF.
N.B.
Sense Connections
can
only be switched
with
OUTPUT
OFF.
The
specified voltage
output of
the
4708
may
be produced
either
at
its
output terminals (Local
Sense
for
high
impedance
loads)
or
at
the
load terminals
(Remote
Sense
for
cases
in
which
lead
resistance
and
load
impedance produce
a
significant
effect).
With
remote
Sense
OFF,
the
1+
terminal
is
isolated,
and
the
voltage output
is
fed
to
the
Hi
terminal.
3-10
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