Tektronix 2247A

Introduction
PREPARATION
FOR
USE
Safety
Refer
to
the
Operators
Safety
Summary
at
the
front
of
this
manual
for
power
source,
grounding,
and
other
safety
Information
about
the
use
of
the
Instrument.
Before
connecting
the
2247A
to
a
power
source,
read
this
section
and
the
Safety
Summary.
Line Fuse
This
instrument
can
be
damaged
if
the
wrong
line
fuse
is
installed.
Verify
the
proper
value
of
the
power-input
fuse
with
the
following
Procedure.
1.
Press
in
the
fuse-holder
cap
and
release
It
with
a
slight
counter-
clockwise
rotation.
2.
Pull
the
cap
(with
the
attached
fuse
inside)
out
of
the
fuse
holder.
3.
Verify
proper
fuse
value.
4.
Install
the
proper
fuse
and
reinstall
the
fuse-holder
cap.
Line
Voltage
and
Power
Cord
The
2247A
operates
on
line
voltages
from
90
to
250
V
with
line
frequencies
ranging
from
48
to
440
Hz.
No
line
voltage
selecting
Is
necessary.
Instru-
ments
are
shipped
with
the
power
cord
that
was
requested
on
the
order.
The
power
cord
must
match
the
power-source
outlet;
if
it
does
not,
con-
tact
your
Tektronix
representative
or
local
Tektronix
Fleld
Office.
See
Figure
1-2
for
optional
power
cords
available.
1-4
2247A
Operators
yor
c