Information subject to change
96-8006123_11-03-2021
8302 OPERATOR’S MANUAL – SECTION 6
24
Connect Your Output Cables
1.
Make sure both amplifiers are disconnected
from AC power.
2.
Remove the 3/8-inch nuts from the Output and
GND terminals on the Master amplifier and
from the Output terminal on the Follower ampli
-
fier.
3.
Connect the end of the black output cable
terminated with a 3/8-inch ring terminal to the
Master amplifier’s back-panel GND connector.
4.
Connect one leg of the red output cable (ter
-
minated with a 3/8-inch ring terminal) to the
Master amplifier’s back-panel Output connec
-
tor. Connect the other leg to the Follower am
-
plifier’s back-panel Output connector.
DO NOT
CONNECT TO A LOAD AT THIS TIME.
5.
Replace the 3/8-inch nuts on all output termi
-
nals.
IMPORTANT: Torque the nuts to 10
lbs./foot.
6.
Replace the output terminal covers on both
amplifiers and secure.
Amplifier Current Check
1. Connect an oscilloscope or other measur
-
ing device to the back panel BNC connectors
labeled IMON on both the Master and the Fol
-
lower amplifiers.
2. Turn down the level of your signal source.
3. Make sure both amplifier’s back panel breaker
switches are in the ON position, and then press
the Power switch on each of the amplifier’s
front panels to energize the amplifiers.
4. Wait for the green RUN LED to illuminate on
the amplifier.
5. Adjust your signal source to input a 1-kHz sine
wave of 100 mV into the amplifier.
6. Measure the current being produced at the out
-
put of the IMON on each amplifier (1V = 20A).
Be sure to measure AC voltage at the IMON
port as an RMS value. Apart from switching
current, no significant current should be ob
-
served. Current output should be less than 2A
(0.1V on the IMON output).
Figure 6.10 – Critical output wire lengths for 8302 parallel systems
TWO 8302 AMPLIFIERS PARALLELED
(CRITICAL WIRE LENGTHS)
OUTPUT
LOAD
OUTPUT
AMP #1
MASTER
AMP #2
FOLLOWER
C
D
OUTPUT
GND
OUTPUT
GND
A
Ÿ
Both wires of length “A” should be of the same length ±1/4 inch.
Ÿ
Wire lengths “A” and “B” may or may not be of the same length.
Ÿ
The length of wire “C” is not critical.
Ÿ
The length of wire “D” is not critical.
Ÿ
For maximum current output, all wire lengths should be as short as is practical.
A
B
Содержание 8302
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