Model
5528A
Angular
Measurements
8-16
MEASUREMENT
DISPLAY
SETTINGS
Measurement Units
Your Angular measurements are displayed
in
units
of
"arc·seconds"
("
ARC·SEC"), regardless
of
the
selling
of
the Measurement Display's rear·panel "Engli
sh/Metric"
swilch.
"Arcseconds"
is
a short way
of
saying "seconds of arc".
One
arcsecond equals
113600
of
one degree.
Another
way to visualize
an
arcsecond is that it
is
equivalent to 0.
000005
mm (or inches) for every
mm
(o
r inch) from
your
measurement
axis.
(
This
is
Ihe same
as
0
.5
mm
in
100
metres,
or
about
114-
inch
in
abom
4000
feet.)
NOTE
Measurement
Display
se
llin
gs
are the same
with
or
without
sensors.
Measurement
Mode
Keys
ANGLE
o
Push
the ANGLE key.
Set-up
Keys
t
RESE
j
Io;;;j
~
NOTE
1.
To
enler
a
number
for
any key -
a. Use
Ihe
ENTRY
keys
10
speci
fy
the
numeric
value
then-
b.
Press
the
se
le
cted
SET
UP
to
assign the
val
ue to Ihal key.
2.
To
check the
current
status
of
any
of
these keys, just press th e
key. Then press
Ihe
key again to return to you r previous
mode.
3.
More
information
about
each key
is
available in
Sec
tion 16 of
this User's
Guide
.
Your measurement dala can be
multiplied
by a
va
lue from
"0"10
"2"
before it
is
displayed. This key allows you to specify what the
multiplier
value will be.
One
use
of
this capabil
it
y
is
10
allow
you to extend Angular measurement accuracy,
described in
the
"WHAT
AFFECTS
ACCURACn"
section,
below
. If you
do
not
specify some
olher
value,
"1.0"
will automalically be used
as
the
multiplier
here.
Determine
which
tilt
direction
you want to be "
positive"
and use this
bulton
to
make sure
it happens.
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