Specifications

REGULATING
RANGE
SELECTION
The
Regulating
Range
Selector
assembly
located on
the
rear
panel
contains the
Regulating
Range Selector
Bar and
the
line
fuse
(Figure
1). 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
range selector bar.
Select
a
range
from
Table
1
which
corresponds to
the average
line
voltage
and
plug
the selector
bar
into the
desired
position.
4. lnsert
the
proper
fuse
(selected
from
Table
2) into
its
holder.
Push the cover on
and tighten
the captive
screws.
Table 1
Regulating
Ranges
Table
2
Fuse
Selection
INSTRUMENT
COOLING
To
maintain adequate
instrument
cooling, the
vent-
ilation
holes
in
the
cabinet
must remain open, and
the air
filter must
be
cleaned
or
replaced when
it
gets
dirty.
Regulating
Range
Selector
Bar
Position
216 to
250
volts
208
to
250
volts
198 to 242
volts
108
to
132
volts
104
to
1 26
volts
99 to
121
volts
11S-Volt
Nominal
Volt Nominal
REV
A
AUG 1979
4658/DM44
OPerators