Information subject to change
96-8005549_3-18-21
8508 OPERATOR’S MANUAL – SECTION 5
16
the amplifier back access door. The Master ampli-
fier module will be identified by a label reading
“Master” located above the DIP switches on the
back panel of the module. You can also confirm
which module is functioning as the Master module
by checking the setting of DIP SW#7. This switch
will be in the UP position on the Master module. All
other modules will have SW#7 in the DOWN posi-
tions. See
Figure 5.2
for module and dip switch
locations.
Do not change the setting of the Opera-
tion Mode switch while the amplifier is
operating (Run mode). Damage to the
amplifier or the load can occur. Turn off
the amplifier and disconnect it from the
AC power supply before changing the
Operation Mode setting.
CAUTION
Figure 5.2 – DIP Switches Location on Master
Amplifier Module
unused input connector can help to minimize noise
going into the amplifier.
SW#2: Balanced Input
When this switch is in the UP position, the bal-
anced WECO input connector is enabled and
can be used to send an input signal to the ampli-
fier. When this switch is in the DOWN position
(default), this connector is disabled. Note that
disabling an unused input connector can help to
minimize noise going into the amplifier.
SW#3: DC Servo
The DC Servo function ensures that no DC offset
is present at the signal output (-3 dB at 3 Hz).
Se
-
lect DC Servo when driving transformers or other
coils. When the DC Servo DIP switch is in the UP
position, the DC Servo function is enabled. When
this switch is in the DOWN position (default), the
DC Servo function is disabled.
ELECTRIC SHOCK HAZARD.
Follow these safety precautions before
opening the amplifier’s back access
door:
• Disconnect the AC power supply.
• Wait at least 3-5 minutes after
disconnecting AC power before
opening the access door.
• Wear safety goggles.
•
Contact AE Techron Technical
Support for any questions or
concerns.
WARNING
The DIP switches on the Master amplifier module
control the following functions:
SW#1: Unbalanced Input
When this switch is in the UP position (default), the
unbalanced BNC input connector is enabled and
can be used to send an input signal to the ampli-
fier. When this switch is in the DOWN position,
this connector is disabled. Note that disabling an
SW#4: Operation Mode
When the Operation Mode DIP switch is in the
UP position (default), the amplifier will operate
in Controlled-Voltage mode, and the amplifier’s
output voltage will be controlled by its input voltage
signal. When this switch is in the DOWN position,
the amplifier will operate in Controlled-Current
mode, and the amplifier’s output current will be
controlled by its input voltage signal.
IMPORTANT:
Controlled-Current operation re-
quires the use of a compensation network. The
8500 series provides two installed compensation
networks: one suitable for loads from 75
μ
H to
500
μ
H; the other suitable for loads from 500
μ
H
to 2 mH. If neither of these is suitable for your
application, you can choose to install a custom
compensation network. For information on install-
Summary of Contents for 8500 Series
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