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OPERATING INSTRUCTIONS
3 -
1
3
OPERATING INSTRUCTIONS
3.1
GENERAL INFORMATION
This
section
outlines the
procedures and
precautions
necessary
for
operation
.
It identif ies
and
briefly describes
the
functions of the
front
and
rear
panel
controls and th
e dis
play,
and
explains the
practica
l
aspects of operation
to
enable an
operator
to
evaluate
quickly
the
instrument· s
main
functions
.
3. 2
SWITCHING
THE INSTRUMENT ON
After
the instrument
has
been connected to the mains
vol
tage
in
acco rdance
with
c
la
use
1.1 .4, it can
be switched on by
the
mains switch
POWER
at the rea
r
panel.
The
LED
'POWER
'
lights
up.
With norma
l
installation
in
accordance
with
section
1
and
after
a
warming -up
time
of
30 min-
utes
,
the characteristics
specified
in section
4
are
va lid.
3.3
BRIEF CHECKING
PROCEDURE
3.3.
1
General
Information
This procedure is
intended
t
o c heck
the instrument's functions
with a
m inimum of test steps
and actions
.
It is assumed
that the
operator
doing
this
test
is familiar with the instrument an
d
its
characteristi
cs.
If
this test
is
st
arted within a
short
period
after
switching on,
test steps
may be out of
specification, d
ue
to
insufficient
warming-
up time
.
WARNING:
3 .3.2
Functional Test
Before switching on, ensure
t hat th
e
instrument
has been
installed
in
accordance with
the
instructions mentioned
in Section
1 .
Connect oscilloscope to
the
OUTPUT socket.
Set the generator
to:
-
wavefo
rm sin
e
-
frequency 10 kHz
-
amplitude
1
0 Vpp
-
DC offset +4 V
Check
the
out
put signal.
Check the 4 WA VEFORMs
.
Check th
e
3
ATTENUATION
steps
.
Check
the FREQU ENCY OFFSET con trol.
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