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Reflective Sensor Heads: FUN M ode Functions
n Correcting Display Values to Match Actual Distances: Two-point Scaling A
Display values can be corrected if there is a discrepancy between the actual
distance from the Sensor Head to the sensing object and the value displayed
on the Amplifier Unit. When actual distances are known, they are input at two
points to correct the range and offset of display values (see following figure).
Example:
Slide gauge
Actual distance
90.0
100.0
110.0
120.0
There are discrepencies
between actual distances
and display values.
Display value
(mm)
48
To change only the offset without changing the range of display
values, refer to n Offsetting Display Values: One-point
Scaling A.
Sensor Head
Sensing object
Measured value = Display value
92.0
100.5
109.0
118.5
120.0
118.5
92.0
Previous value of 92.0 mm
90.0
90.0
Example: Two-point Scaling A
Instead of the actual distance of
90.0 mm, 92.0 mm is displayed.
In addition, instead of
the actual distance of
120.0 mm,118.5 mm
is displayed.
Display value
Actual distance
90.0
90.0
100.0
100.0
110.0
110.0
120.0
120.0
Previous value of 118.5 mm
is displayed as 90.0 mm.
120.0
Actual distance (mm)
Section 3-5
Measured value
92.0
100.5
109.0
118.5
: Scaling value inputs
is displayed as
120.0 mm.
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