Information subject to change
97-7796264_09-04-2020
7548/7794/7796/7796HC OPERATOR’S MANUAL – SECTION 2
8
2
Amplifier Unpacking and
Installation
The 7548, 7794, 7796 and 7796HC amplifiers are
precision instruments that can be dangerous if not
handled properly. Lethal voltages are present in both
the AC input supply and the output of these ampli-
fiers. For this reason, safety should be your primary
concern when you setup and operate this amplifier.
2.1 Safety First
Throughout this manual special emphasis is
placed on good safety practices. The following
graphics are used to highlight certain topics that
require extra precaution.
Along with any additional accessories purchased
by the customer, all 7548/7794/7796/7796HC
amplifiers ship with the following:
•
Toolkit (contains one 1/8-inch Allen driver and
three 2.7-ohm resistors)
•
NEMA connector for Power Cord
•
Operator’s Manual USB drive and Quick Start
sheet
DANGER represents the most severe
hazard alert. Extreme bodily harm or
death will occur if these guidelines are
not followed. Note the explanation of the
hazard and instruction for avoiding it.
DANGER
WARNING alerts you to hazards that
could result in severe injury or death.
Note the explanation of the hazard and
the instructions for avoiding it.
WARNING
CAUTION indicates hazards that could
result in potential injury or equipment
or property damage. Once again, note
the explanation of the hazard and the
instructions for avoiding it.
CAUTION
2.2
Unpacking
All amplifiers are tested and inspected for dam
-
age before leaving the factory. Carefully unpack
and inspect the amplifier for damage.
Please note
any damage for future reference and notify the
shipping company immediately if damage is
found.
Also, please save the shipping carton and
materials as evidence of damage and/or for return
-
ing the amplifier for repair.
Never attempt to lift the amplifier with
-
out assistance. Crushing bodily injury
can result if care is not taken during
installation. Cabinets may overturn if
not secured.
WARNING
2.3 Installation
The 7548, 7794, 7796 and 7796HC amplifiers
have rack “ears” on each side of the front panel for
mounting to a standard EIA (Electronic Industries
Association) rack. Use standard rack mounting
hardware to mount the amplifier. Use nylon wash
-
ers if you wish to protect the powder-coat finish on
the front of the amplifier.
NOTE: The 7548 weighs approximately 103
pounds, and the 7794, 7796 and 7796HC weigh
approximately 153 pounds. Be sure this weight is
properly supported using all the screw locations.
When mounting the amplifier in a rack cabinet,
the sidewalls of the rack must be at least 2 inches
away from the chassis on both sides.
Allow for hot air discharge through the amplifier’s
rear grill. If your cabinet has a rear door, you must
provide adequate airflow through the door. Pro
-
vide a source of cool air for fan intakes. If the rack
is crowded or rack ventilation is poor, use a vent
tube to the outside of the rack. Cooling capacity
required is 300 ft3/min. total per amp.
When operating the amplifier in a dusty environ
-
ment, use commercial furnace filters, or equiva
-
lent, to prevent rapid clogging of the filters on the
amplifier.
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