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Appendix
56
Marathon
Series
FA/FR
11.3
Typical
Slopes
The
following
slope
settings
are
approximate
and
will
vary
depending
on
the
metal
alloy
and
surface
finish,
as
well
as
the
application.
These
are
supplied
here
as
examples.
Set
the
slope
to
approximately
1.000
for
measuring
the
following
metals
with
oxidized
surfaces:
•
Stainless
Steel
•
Cobalt
•
Steel
•
Iron
•
Nickel
Set
the
slope
to
approximately
1.060
for
measuring
the
following
metals
with
smooth,
clean,
unoxidized
surfaces:
•
Iron
•
Nickel
•
Tantalum
•
Stainless
Steel
•
Rhodium
•
Tungsten
•
Cobalt
•
Steel
•
Molybdenum
•
Platinum
Molten
iron
also
has
an
approximate
slope
setting
of
1.060.
How
to
determine
slope?
The
most
effective
way
to
determine
and
adjust
the
slope
is
to
take
the
temperature
of
the
material
using
a
probe
sensor
such
as
an
RTD,
thermocouple,
or
other
suitable
method.
Once
you
determine
the
actual
temperature,
adjust
the
slope
setting
until
the
sensor’s
temperature
reads
the
same
as
the
actual
temperature
reading.
This
is
the
correct
slope
for
the
measured
material.
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