.....
15
"""'I
2.2.7. Single-shot mode
The generator
is
provided
with
a
controi
devi
ce
which
can produce single periods
of
a signal
with
set
frequency
and signal
form.
The single shot capabil
ity
is
operative
for
all signal forms and in the
frequency
ranges 1 m ... 1k.
The starting
point
can be set
continuously
between the peak values
of
the signal (in accordance
with
Fig.
5)
by
means
of
potentiometer
SET PHASE.
T o
th
is
end proceed
as
foll
ows:
.-
- Select the signal
form
(2.2.2.)
- Set the frequency (2.2.3.)
- Set the signal
amplitude
and d.
c.
-
offset
(2.2.4.)
- Set the
controi
switch
to
SET
PHASE
- Set
potentiometer
SET
PHASE in accordance
with
Fig.
5.
to
the required starting
point
-
Release
single period
by
pressing
controi
switch
OFF/SET
PHASE/START
to
position
START
A single period
can
also
be
released
by
applying
a negative-going pulse
from
O
to
-5
V
with
a fall
time
< 1
/15
to
COI\JTROL II\JPUT (rear side) .
,.....
SETPH
AS
E-
S
ET
PH
ASE
Q SET PHASE +
sta
rl
sla
rl
slart
. v
tv-
t
o
t
I
--iVT"-
~
-v
I I i
I:
I I
.v
'V
o
~
~~
-v
I I I I
I I I I I I I
I I I
I I I I
-
'l..,
o
. v
DLJJLJL
-v
I I I
I I
.v
I I I
.....
/'
-v
o
~
i1Y-~
I
II
I I I I I
I II I I I
II
.v
I
IIIliN
o
I II I I
'"
-v
~
~I:
II II II II I
II
I
II II
Ii
I
I:
I I
.v
'L
o
i
~~
JU-
-v
I
II
--
II : I: J I I
II I
II
I I I
~
o
.....
.v
JtLr---LJL
-v
MA8G26
Fig.
5.
Starting
points
for
the various signals
in
the "
SINGLE
SHOT"
mode
2.2_8.
HOLD
function
The
output
signal can
be
kept
at
its instantaneous voltage
by
either setting the switch RUN /
HOLD
to
position
HOLD
or
by
applying
a d.c. voltage
of
+5
V
to
CONTROL
INPUT
(rear side) . The
HOLD
function
is
only
effective in positions 1 m ... 1
of
the frequency range selector.
-
-
-
-
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