Publicité
®
PM
5135
OPERATING INSTRUCTIONS
3
-
5
3.4.4
Am
plitude Setting
Select
the required
a.ttenuator
range
by pressing the corresponding ATTENUATION switches
.
The attenuation can be set in 10 dB
steps from
0
dB to
60
dB.
e.g.
ATTENUATION
40 dB
10dB
20dB 30dB
~
50
dB
Fine
setting of
the
amplitude:
AMPLITUDE
3 Vpp to 30 Vpp, open circuit,
no ATTENUATION
switch
pressed
(30 Vpp when DC OFFSET is set to 0
V))
.
3Vpp
30Vpp
3
.4.
5
DC Offset Voltage Setting
A
DC
voltage can
be
added
to
each output signal.
Wi
th the switch
DC
pressed only the set
DC
voltage is at
th
e
output.
The ATTENUATION switches
effect also the
DC
voltage.
Example:
DC OFFSET
-10V
+1
0V
-10
V to
+
10 V, open c ircuit,
no
ATTENUATION switch
pressed.
The
total
output
voltage
(AC
+
DC)
must
not exceed ±15 V
to avoid
overdriving
the power
amplifier
.
+6
v
DC
offset
AC
max.
18
Vpp
-
15
v
-----
-------- -----
Publicité
