Model
SS28A
Distance Measurements
6-22
r:::J
~
NOTE
The default value for V.O .
l.
is
728.8
. (
This
corresponds 10
an
air
temperature
of
20°C (
66
Fl,
an
air
pressure equivalent to
760
mm
(29.92
1 inches)
of
Mercury,
and relative humidity of
50%.
Enl
er the calculated compensation
radar
by pressing -
000008
b.
Measure the average material temperature
by
some means and enter it
by
pressing -
00000
NOTE
The default
va
lue for
MATL
TEMP
is
20
° C or
68
°
F.
r:::J
~
PRESET
B
e.
Enter a preset
number
(constant)
if
you want one used. The
va
lue you
enlerwlll
be added to the measured results and the total will be displayed.
If
you
do
not
enler
a number,
"0"
is
automatically
used
here.
Determine
which direction you want to be "positive" and
use
this button to
make sure it happen
s.
EXP
COEFF
@g
e. Enter Ihe EXPansion COEFFicient
for
the material whose temperature you
are measuring. Enter the
val
ue in parts-per-mi!lion-per-degree (
ppm
/
degree
).
For steel, the expansion coefficient
is
11
.7 ppm-per-degree
C.
You
should
enter
-
(
AESOL
)
11.7
then
press
r.;J
~
NOTE
Be
sure the Measurement Display unit
's
rear-panel
ENGLISH
/
METRIC
switch
is
set
to the
system
you will be using, and that you
enter your value in the appropriate units.
L Determine the resolution you need from the accuracy you want. Enter the
number
of places you want,
and
then
press
this key. Resolution extends
to
five
places
(0.0000
11 for millimetres, and to s
ix
places
(
0.000001)
for Inches.
This key also allows you
10
"smooth"
your data
by
entering a positive number.
A negati
ve
resolution number will remove
any
smoothing. Smoothing reduces
the
effects of vibration.
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