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Model 5528A
Interconnections, Turn-On
5-10
CHECKING THE LINE-VOLTAGE SELECTION
To prevent damage to
your
l
aser Measurement
System,
it must
be
correctly set
up
to operate
from
the power line
voltage
availab
le
OIl
your
sile.
To
check
the line
voltase setting, look
through the
window
in the line Power Module
on
the
Measurement Display unit's rear-panel; the numbers
you read on
the printed
circuit
board there
indicate the
(nominal)
line
voltage your
unit is
set
up to use
(see
Figure 5-5
).
If
it is necessary
10
change
the
setting
of the line voltage
selector
in
your
unit.
follow
the instructions
presented in Figure
5-5.
Be
sure
the
li
ne fuse is
changed
to
the required value.
If
any
other equipment (such
as an HP Personal
Compu ter)
is
conm.
' Cted
to
your
laser
Measurement
System,
be
sure
it is also
corredly
set
up
10
operate from the linc
voltage
available at
you
r
site.
CONNECTING THE SYSTEM TO THE POWER LINE
CAUTION
To prevent serious dimige
to
your
unit,
do not conned
ilto the
power line If the
line--volti
ge number you read through
the line
power module's window
is diffe
rent from
the
power
line
voltage
at your
site. Instructions
for changing the
line
voltage selection
(and fuse)
arc
presented earlier In
this
user's
gukie
section.
If your laser measurement system
includes any
optional
line--
powered equipment (such
as
an HP Personal
Computer),
be
sure
this
equipment
is
ako
correctly
set up
to operate
from
the
line
voftige iViililbie it your
silc.
Assuming thai
you
have
followed
the instructions presented
so
far
in
this
User's
Guide
section,
and
that
you
r
Measurement Display unit is
correctly set
for the line
vol
tage al
yOur site and
is
connected
to the
laser
Head
(and
any
optional
equipment).
you
are now ready to
connect
the system to the
power
line. The line power connection for Ihe
laser
Measurement
System
is made
via
the
Measurement Display unit's
rear
panel.
One end
of
Ihe line power
cord supplied
with
your
unit is a three-conductor
female connector
Ihal
males with the male-connector
portion
of the Measurement
Display
unit's
rear-panel
line Power
Modu le. Note
Ihat
a
safety-interlocking door is provided
on the
line Power Modu
le;
in
order
to
conned
Ihe li
ne
power
cord,
this
door must
be
moved
so
it
covers
the fuse and rine-vohageselooor
area. (Conversely, the fuse
cannot
be removed
or
the line-voltage
selection changed with
the line
power
cord connected, since
the
cord
prevents the
cover
from moving away from this
area.
)
NOTE
The laser Measurement System
Is provided with a
line power
cord
whose
plug is
appropriate
for thc
shipment
destination. If
the
plug
on your
line
cord
does
not
match Ihe the
line
power receptacle
at
your site, refer
to Ihe laser MeasurementSystem'sService
Manual
for the HP Pari Numbers
of
available
line
power
cords.
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