Section
2-465
OPERATING
INFORMATION
Introduction
This section
of
the manual
is
intended
to
allow
the
operator
to
become familiar with the
instrument
power
requirements, functions of controls and connectors, and
how
to
obtain a few basic displays. For more complete
operating information, refer
to
the
465
Operators Hand-
book.
Instrument Repackaging
If
this
instrument
is
to
be shipped for long distances by
commercial means of
transportation,
it
is
recommended
that
it
be
repackaged
in
the
original manner for maximum
protection. The original shipping carton can be saved and
used for this purpose. Fig. 5
in
the
Mechanical Parts List
illustrates how
to
repackage
the
465
and gives
the
part
number
for.
the
packaging
components.
New shipping
cartons can be obtained from
Tektronix,
Inc.
Contact
your
local TE
KT
RON
IX
Field Office
or
representative.
Operating Voltage
~
This instrument
is
designed
for
operation from a
power source
with
its neutral
at
or
near earth
(ground)
potential
with a separate safety-earth con-
ductor.
It
is
not
intended
for
operation from two
phases
of
a multi-phase system,
or
across the
legs
of
a
single-phase three-wire system.
This
instrument
can be
operated
from either a 115-volt
or 230-volt nominal line voltage source,
48
to
440
hertz.
The Line Voltage Selector switch
in
the instrument
converts the
instrument
from one nominal operating
voltage
to
the other. The Regulating Range Selector
assembly on
the
instrument
rear panel selects one of three
regulating ranges for each nominal line voltage; it also
contains
the
line fuse for overload
protection.
To
select
the
correct nominal line voltage and regulating range, proceed
as
follows:
1. Disconnect
the
instrument
from
the
power source.
2. To convert from 115-volts nominal
to
230-volts
nominal line voltage, set
the
selector switch
to
the
230
volts
position (toward
the
rear of
the
instrument). Change the
line-cord plug
to
match
the
power source
or
use a
115-to-230 volt adapter.
®I
NOTE
Color-coding
of
the cord conductors is
as
follows (in
accordance
with
National Electrical Code):
Line
Neutral
Safety earth (ground)
Black
White
Green (or green with
yellow
tracer)
3.
To
change regulating ranges, loosen
the
two
captive
screws which hold
the
cover
onto
the
Regulating Range
Selector assembly, then pull
to
remove
the
cover.
4.
Pull
out
the
range selector switch bar (see Fig. 2-1).
Slide the bar
to
the desired position and plug it back in.
Select a range which
is
centered
about
the
average line
voltage
to
which the
instrument
is
to
be connected (see
Table 2-1).
Range
Selector
Switch Position
TABLE
2-1
Regulating
Ranges
Regulating Range
115-Volts 230-Volts
Norn inal Norn inal
Lo (switch bar
in
bottom
holes)
99
to
121 volts 198
to
242 volts
M (switch bar
in
middle holes)
104
to
126 volts
208
to
252 volts
HI
(switch bar
in
top
holes)
108
to
132 volts
216
to
264
volts
Fig. 2-1. Power supply regulating range selector.
For
Service
Manual•
MAURITRON
SERVICES
8
Cherry
Tr••
Road,
Chinner
Oxfordahire,
OXO
4QY,
Tel
(01844)
361694
Fax
(01844)
362664
email:•
mauritronOdial.pipex.com
··
·
2-1
.,·
. . . .
~-
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