Operating
Instructions—465B Service
NORTH AMERICAN
120 VOLT/60 Hz
RATED
15 AMPERE
(12
AMP
MAX.; NEC)
UNIVERSAL
EURO
220 VOLT/50
Hz
RATED
16
AMPERE
NORTH AMERICAN
240 VOLT/60 Hz
RATED
15
AMPERE
(12
AMP MAX.; NEC)
U.K.
240 VOLT/50 Hz
RATED 13 AMPERE
AUSTRALIAN
240 VOLT/50 Hz
RATED
10
AMPERE
<
2389
-
76
)
2757-66
Figure
2-1.
Commonly used power plugs.
Regulating
Range Selection
The Regulating Range Selector assembly located on
the
rear panel contains the Regulating Range Selector bar
and
the line
fuse.
Verify
that the
selector
bar is set for
the
average line voltage being used
and that the proper
line
fuse is
installed.
To
change
the
regulating range:
1.
Disconnect the instrument from its power
source.
2.
Loosen the two captive screws that hold the cover on
the selector assembly; then pull to remove the cover.
3.
Pull out
the
selector
bar
(see
Figure 2-2). Select
a
range from Table
2-2
centered about the average
line voltage and plug the
selector
bar into the
desired
position
4 Insert the proper fuse (selected from Table 2-3) into
its holder.
5. Gently push the cover on and tighten the
captive
screws.
6.
Before applying power to the
instrument, verifythat
the Line
Voltage Selector switch and the indicating
tab on the
Regulating Range Selector assembly are
in their correct
positions for the desired
nominal line
voltage and
regulating range
Table
2-2
REGULATING
RANGE
1
Regulating
Range Selector
Bar Position
Regulating Range
115-Volt
Nominal
230-Volt
Nominal
Upper
Holes 108 to 132 volts
216 to 250 volts
Middle Holes 104 to 126
volts 208 to 250 volts
Lower
Holes
99
to 121 volts 198 to 242
volts
LINE
VOLTAGE
SELECTOR
SWITCH
\
FUSE
RANGE
BAR
2756 01
Figure
2-2. Regulating range selector and line fuse.
2-2 REV A JUN 1979