Section
2—
465B Service
OPERATING
INSTRUCTIONS
This section of the
manual provides
information on
instrument installation and power
requirements and describes
the functions of
controls, connectors, and indicators. In addition, it includes procedures
intended
to
familiarize the
operator with obtaining basic oscilloscope
displays For more complete operating
information, refer
to
465B/DM44
Operators Manual
INSTALLATION
The
465B is shipped in its carton with the standard
accessories listed on the Accessories tab page at the end
ot this
manual At installation time, save tne snipping
carton and packaging
materials for repackaging. Refer to
the Maintenance section of
this manual for repackaging
information.
PREPARATION FOR USE
Safety Considerations
This instrument may be damaged it
operated with
the Line Voltage Selector switch or
the Regulating
Range Selector bar set for the
wrong applied line
voltage or if the
wrong line fuse is used.
Refer to the Safety Summary in the front of
this manual
for
power source,
grounding, and other safety
con-
siderations
pertaining to use of the instrument Before
connecting
the
instrument to
a
power source,
verify
that
the
Line Voltage Selector switch and the
Regulating
Range Selector bar are both set for the line voltage being
used,
that the proper line fuse is installed, and that
the line
cord plug
matches the power source to be used
The 465B is designed
to be used
with
a
three-wire
ac
power system If a three-to-two wire adapter
is used to
connect this instrument
to a two-wire ac power system, be
sure to connect the
ground
lead
of the adapter to earth
(ground). Failure to complete
the ground system may
allow the chassis of this instrument
to be
elevated
above
ground potential, thus posing a shock hazard.
Line
Voltage Selection
WARNING
This instrument is designed for
operation from a
power
source with its neutral at or near
earth
(ground)
potential with a separate safety-earth
conductor.
This instrument operates from
either
a
115-volt or a
230-volt
nominal line voltage source at 48
hertz to 440
hertz To
convert the instrument for
operation from one
line voltage
range to the other, move
the Line Voltage
Selector switch located
on the right side panel to
the
position
indicating the correct nominal
voltage.
The power cord plug may
require replacement with a
type
matching the power source If necessary,
changethe
line cord plug Refer to
Table
2-1
for power cord conduc-
tor identification and to Figure
2-1
for illustrations of
commonly-used power plugs
Table
2-1
POWER CORD CONDUCTOR
IDENTIFICATION
Conductor Color
Alternate
Color
Ungrounded (Line) Brown Black
Grounded (Neutral) Blue
White
Grounding
(Earthing) Green-Yellow Green-Yellow
@
2-1
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