Solartron 1260 - Page 76

2.2
[INPUT
VI]
Parameters
of the
analyzer
VOLTAGE 1 input.
2.2.1
RANGE
Auto
ranging
or a fixed
range can be
used:
•
[auto]
.
,
Auto
ranging
selects
the most
accurate
range
tor
the
signal
amplitude
being
measured.
Each
measurement
starts
on
the
most
sensitive
range.
If
an
overload
is
detected
the
result
is
discarded
and
measurement
restarts
on
the
next
range
up;
this
procedure
is
continued
until a
valid
result is
obtained.
Auto
ranging
should be
used
when the
signal
amplitudes
being
measured
cover
more
than
one
input
range,
or
are
unpredictable.
•
[30mV]
Fixed
range
for
signal
amplitudes
between
OV
and
30mV.
•
[300mV]
Fixed
range
for
signal
amplitudes
between
OV
and
300mV.
•
[3V]
Fixed
range
for
signal
amplitudes
between
OV
and
3V.
The
use
of a
fixed
range
avoids
the
range
search
time
penalty
incurred
with
auto
ranging.
Select
the
most
sensitive
range
possible,
to
obtain
the
finest
measurement
resolution.
2.2.2
COUPLING
Coupling
of the
measured
signal to
the
analyzer
VOLTAGE
1
input.
•
[del
Dc
coupling
introduces
minimum
phase
shift
and
should
be
used
whenever
possible,
particularly
on
low
frequency
work.
0
£
sc]
Ac
coupling
can
be
used
to
reject
an
unwanted
dc
component.
This
may
allow a
more
sensitive
input
range to
be
selected.
JWS/1
260/2
5.9