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Model
5528A
Controls,
Con
nectors, Indicators
More
About the
MA TL TEMP KEY
The Millerial TemperalUre
Sensors
are
used
10
co
mpensate for thermal
expansion or
contraction
of
the material
being
measured by the laser
Measurement System. You can
lise the
MATl
TEMP
key at any time
{without
losing
of measurement
data
)
to
-
a.
display the average temperature of all sensors
connected
,
-
b.
display the
temperature
of each individual
se
nsor
connected,
-
c.
display
the default
average
lernpf'rature value
(20
oC
or 68
°F)
if
all
se
nsors are
disconnected,
-
d.
enrer an averase workpiece
temperature
when
all
sensors arc
di sconnected.
The
range of
the
10757A/
!J/C
Material Temperature
Se
nsor is 0 to
40°C
~
32
to
104°F),
When
a
sensor
reaches
a temperature outSide
this range
,
an
appropriate
error messase is
di splayed by
the
Measurement Displa
y
unit.
See Section
17,
"ERROR MESSAGES
"
for
explanation of
these
messages.
The
same e rror
messages
are
used
when a
tempera lUre
signa
l
error occurs
due to
a
hardware
failure.
To Display the Material Temperature
To display the material temperature. press the MAll TEMP key.
The firs
t
time this key is pressed
,
an
"A"
{indicating
"
average"
)
appears on
the left-hand
side of
the display,
and
the tempera ture (fixed to two
decimal
places)
is
shown on
the right
,
followed
by
a
"e"
or
an
"F" (centigrade or
fahrenheit
),
depend ing on the
setting of
the ENGLISH -METRIC
switch.
Each
successive
press
of
the MAll TEMP key
will
display Ihe
temperature of
the
sensors,
in
the
order "
1",
"2"
,
"3".
If
the
next
se
nsor to be read
is
not
connected,
the Measurement Display unit
will
skip
that
reading. Thus,
if only sensors "1" and
" 3"
are connected, successive
prcsses
of
MATl TEMP
wi
ll
give
the
average temperature,
the temperature
at
sensor "1",
the temperature at
sensor "3",
and a
return
to the measurement
mode.
If no
sensor
is
co
nnected,
successive
presses
of
MA Tl TEMP
wi
ll
show the average temperature and
then
return to the measurement
mode.
If you
select
some other function while
the
temperature of
a particu lar scnsor
is being
displayed
,
and then
press
MAn
TEMP, the
display will go back to
showing
the temperature of that
sensor;
successive
presses
of MATL
TEMP will
cycle
through
the
sensors and "average", as
described
abovc.
For
example, assume that
all three Material Temperature
sensors
are
connected, and
that the
temperature of sensor
number
"2"
is being dIsplayed. If
you
then press the
VELOCITY
key (to
fi nd ou
l
how (as
t
the
optics
are moving
),
and
then press the MAll TEMP key again.
the
temperature
at sensor
number
"2" will
be di splayed again.
Successive
presses
will
then display
the temperature at
sensor
"3",
and then
a
return to
mode.
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