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INITIAL PREPARATION
MODEL
616
SECTION
2.
INITIAL
PREPARATION
2-1.
GENERAL.
This section describes procedures for
incoming inspection
and
preparation
for use.
2-2.
INSPECTION,
The Model
616
was carefully in-
spected both mechanically
and electrically
before
shipment.
Upon receiving
the
instrument, check
for any obvious
damage which may have occurred dur-
ing transit.
Report any damages
to the
shipping
agent.
2-3.
PREPARATION FOR
USE.
Line Voltage.
Before power
Is
applied check
the
position
of
the
LINE switch
(S201) on the
rear
panel.
Select
the
117V position
for
operation from
50-60 Hz line voltages over
the
range 90V
to
125V
rms.
Select
the
234V position
for
operation from
50-60 Hz line voltages over
the range 180V
to
250V
rms
b.
Fuse Installation.
After
the line
voltage
range
is
selected check
for the proper
fuse,
type
and rating
as
follows:
1I7V:
3/16
amperci
,
type
SAG
SLO-ELO
234V:
I/IO
ampere, type
3AG
SLO-BLO
c.
Line Connections.
This instrument requires
a
three-wire line cord (Keithley part
no. CO-7)
which
provides connections
to
line voltage
(high,
common)
and chassis ground.
For operator
safety,
the
chassis ground pin
should be connected
to
earth
ground.
CAUTION
If
the instrument input LO
is to
be floated,
above chassis ground, make certain that
the
"link"
between LO
and
GROUND on
the rear
panel
is
removed.
4
0773
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