Front
P
anel
4339B
Trigger
Mode
K
ey
The
Trigger
Mode
key
selects
the
trigger source
. The
available trigger
sources are
as follows:
Int
(Internal)
Trigger
Mode
.
The
4339B is
triggered automatically
and continuously
.
(Default)
Man
(Manual)
The
4339B
is
triggered
when
is
pressed.
Ext
(External) The
4339B is
triggered by
a pulse
input
through
the
External
Trigger
terminal
or the
handler interface
.Refer
to \External
Trigger".
Bus
(Available
only in
GPIB remote
mode.)
The
4339B
is
triggered
by
the
GET
or
*TRG
command
through
the
GPIB.
Delay
K
ey
The
Delay
key
sets
a
lag
time
between
event
and
the
start
of
the actual
measurement. The
available
trigger
delay
time
value
is
0
to
9.999
s
.
Note
The
trigger
delay
time
value
is
invalid
when
you
perform
the
measurement
sequence
.
Recall
K
ey
The
Recall
key
is
used
to
recall
instrument
settings
saved
in
non-volatile
memory
(EEPROM)
(see
\Save
Key
").
Y
ou
must
enter
register
number
,
0
to
9,
from
which
to
recall
the
settings
.
If
the
register
selected
is
empty
,
the
error
message
\
RECALL
FAILED
"
is displayed.
Save K
ey
The Save
key
stores
the
instrument's
current
settings
into
non-volatile
memory
(EEPROM).
Saved
settings
are
the
same
as
the
items
stored
into
backup
memory
in
Table
3-3.
Up to
10
sets
of
instrument
settings
can
be
saved.
Y
ou
must
enter
the
register
number
,0
to 9,
to assign
the
register
into
which
the
settings
will
be
saved.
Caution
The
4339B
overwrites
the
instrument's
settings
into
the
assigned
register
without warning. If settings are already stored
in the assigned register
, they
will be lost.
Comparator Limit K
eys
The comparator limit keys set the comparator high and low limit values which decide the
comparator's PASS or FAIL response. Note that the comparator function compares the
displayed value with the limit values.
You cannot set each limit value to OFF using the front-panel keys, but you can by using GPIB
commands. (Refer to \CALCulate Subsystem" in Chapter 5 To get around this front-panel key
restriction, use the Minimum (
) or Maximum ( ) keys instead.
3-12 Function Reference
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