Table of Contents
Advertisement
ModelS528A
Velocily Measurements
Using
Sensors
Sensor AtHachment
The Air
Sensor shou ld
already be auached.
See
Section
5
for
instructions.
CAUTION
To prevent
possible damage
to
the
Measurement
Display unit,
be
sure you
turn
the line power
off before
cone
nctin8
o
r
disconnecting
any n ble
at
ih rear panel.
NOTE
Be sure to
"
lock" the
con nections, so
they won',
accidenta
ll
y
come undone.
Sensor
Placement
In
order
to
accurately correct
for the
effects of environmental
and machine temperature
on
the
laser
reading,
you
must
locate
the
sensors
where they can
accurately
monitor
the conditions
influencing the laser. The
10751
Air
Sensor
(which
monitors the
atmospheric
conditions)
should
always
be
mounted
as
closely as
possible to the
actual
MEASUREMENT
PATH,
50 it can
monitor
the
condi tions
the
laser
beam is experiend
r,g.
As
an
eJlample
for
sensor
placement
,
let's consider
making a measurement
on
a
mill,
shown in
Figure
6-11.
In
Ihis
case,
it is easy
to determine
where
the
sensor
shou
ld
be.
The 10751
Air Sensor
should be
placed
nCJlt
to
the
beam
in the
measurement path.
NOTE
The
Air Sensor shou
ld be mounted
with
its
ar row
pointing
up
,
to
maximize accuracy,
as
shown in
Figure6-12.
II
shou
ld
shou ld also
be
loca
ted in
an area
with
good air flow.
Adjusting For Humidify
The 10751
Air Sensor
has
a
" Humidity"
swilch
on one side
(opposite
its connect
ing
cable).
You
must
sel the switch
handle to the
position
corresponding to Ihe
relative
humidity in
the
area
you
are
measuring.
The
choices
are
"25')b",
"50''-:''',
and
"75'X/'.
7-3
Advertisement
Table of Contents
