EXPORT POWER TRANSFORMER
Transformer
Primary
The
instrument
fur
which
this
manual
was prepared
is
equipped
with
a
special
transformer.
The transformer
has
eight
primary terminals
making
possible
six
different input
connections.
The six
primary
connections
are
shown
in
Fig.
1.
POWER
TRANSFORMER HAS TWO
NOMINAL
PRIMARY VOLTAGES OF
50
OR
60
a
,
OPERATION.
A
EXTRA WINDINGS
PERMITTING
110,
117, 124, 220, 234, OR 248 V,
z
5 z5
c
110V
*
D
2
I
1
t
3
u
4
117V
f
D
D
A
/
/
2
3
B
1
*
124V
B
1
t
1
t
o
c
4
t
A
4
t
4
220V
t
B
C
1
t
248V
D
i
>
D
A
4
A
B
A
2
3
B
C
1
4
t
234V t
Fig.l.
The
power
transformer
has
two
extra
windings
permitting
nominal
primary
voltages
of
110,
117,
124,
220,
234, 248
volts,
50
or
60
cycle
operation.
Fig.
2.
When
connecting
the
power
transformer for
operation
with
a
supply
voltage of
200
volts
or
more,
be
sure
that the
fan is
connected
between
pins
1
and
3
of
the primary.
This
is
to
insure
that
the
fan
is
supplied
with
no
more
than
125 volts.
Fig.
2
shows
a
typical
high-voltage
fan connection,
using
as
an example
the
wiring
for
a
248 volt
supply.
