6 Inputing settings for calculation and display of a feature
6.1 Setting the factor for correcting the
indicated value of a feature
Certain measuring tasks can require a factor oth-
er than 1 to be input for the connection formula.
Such tasks include measuring the eccentricity of
a rotating workpiece or indirect measurement of
a workpiece by contacting via a lever that exhib-
its a lever ratio other than 1:1.
The (MAX-MIN) function has to be used to eval-
uate eccentricity. The differential between the
largest and smallest measured values is formed.
As measurement is carried out through 360°, the
result for factor 1 is equal to double the eccen-
tricity value. Inputting a value of 0.5 enables the
user to directly view the actual eccentricity with-
out having to perform further calculations based
on the indicated values. Inputting a value of 0.5
halves the resultant value, thus correctly indicat-
ing eccentricity.
If indirect contact is made with the workpiece
via a lever with a lever ratio other than 1:1, the
indicated value is distorted in proportion to the
lever ratio. If there is a lever ratio of 1:5 (point of
contact on the workpiece – lever pivot point –
contact point on the lever), the indicated value is
5 times larger than the actual deviation. A factor
of (1 : 5 =) 0.2 must be input in order that the
deviation can be read directly for a lever ratio of
1:5.
Depending on the device type, either one pneu-
matic or up to two inductive probes can be con-
nected to the Millimar C 1208/C 1216/ C 1240.
One or two features are calculated and displayed
based on raw value(s) (see Chapter “Selecting
the number of features/test results to be dis-
played”). A connection formula is required in
order to calculate the feature (F). This formula
consists of both a freely selectable factor and the
raw value(s) from the probe(s).
C 1208 PE, C 1208/C 1216 M, F, T/C 1240 M
F = Factor × (± C1)
C 1208/C 1216 M, F, T, C 1240 M
F = Factor × (± C2)
F = Factor × (± C1 ± C2)
If the extent of a workpiece’s deviation from a
nominal dimension is to be displayed rather than
its absolute value, the value of the nominal di-
mension must also be established.
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