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f.
(5)
T I .
Material
temperature
measurement
of
sensor
No.
1
in
Fahrenheit
or
Centigrade
a s
determined
by
the
O F
-
"C
switch.
g.
(6)
T , .
Same
a s
T ,
but
for
sensor
No.
2.
h.
(7)
T , .
Same
a s
T ,
but
for
sensor
No.
3.
.
(8)
T
AVERAGE.
Average
temperature
of the
sensors
selected
with the
while
push-
button
switches
(T,,
T , ,
T,).
j.
(9)
TEMP
COEFF.
PPM/degree
setting
on
Material
Compensation
thumbwheel
switch.
2.
"OF-OC"
and
"in
Hg-mm
Hg"
switch.
Selects
either
English
or
Metric
units for
the
display.
Only
operative
in
positions
(3)
through
(8) of
the
SENSOR
DISPLAY
switch.
Setting
of
this
switch
does
not
affect
the
compensation
number.
3.
DISPLAY-OPERATE-SCAN
switch.
In
DISPLAY
position,
the
calculator
will
display
the
setting
of
the
SENSOR
DISPLAY
switch.
When
set
to
OPERATE,
the
Laser
Interferometer
system
is
operative;
the
source
of
the
compensation
number
will
be
determined
by
the
setting
of
the
AUTO-MANUAL
switch.
SCAN
position,
not
used
with
Laser
Transducer
System.
4.
AUTO-MANUAL
switch.
Always
set
to
AUTO
when
used
with
Laser
Transducer
System
to
supply
compensation
numbers
to
the
10755A
Compensation
Interface.
5.
MATERIAL COMPENSATION
thumbwheel
switch.
Used
to
enter
material
temperature
coefficients
in
pprn/degree
of
Fahrenheit
or
Centrigrade.
6.
OFF
indicator
switch.
When
lit,
indicates
that
all
material
temperature
sensors
are
OFF.
When
pushed,
disconnects
all
material temperature
sensors.
7.
T ,
lndicator
and
Switch.
When
lit,
indicates
that
temperature
sensor
1
is
operative,
when
pushed,
selects
sensor
1 .
8.
T ,
lndicator
and
Switch.
Same
a s
above
for
T,
sensor.
9.
T ,
lndicator
and
Switch.
Same
a s
7
above
for
T ,
sensor.
10.
OUT
OF
RANGE
indicator.
Indicates
that
measurement
conditions
are
out
of
the
range
of
the
compensator.
Figure
4-8.
5570A
Opt
070
Automatic
Compensator
Front
Panel
Controls
and
Indicators
(Cont'd)
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