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No. 99MBC071A
3.2.10 Mastering
• If the objective workpieces are high-precision gages that are machined successively, the
above described offset/zero-set values may need to be fine-adjusted to the master. This
fine-adjustment is called mastering.
After mastering, the total compensation value will be:
(Offset value/zero-set value) + (±Mastering value)
Setting a positive (+) mastering value allows the measurement of a workpiece diameter to
be greater than the raw measurement, and setting a negative (-) mastering value allows the
measurement of a workpiece diameter to be smaller than the raw measurement.
• Because no measurement is required for this mastering, the reference gauge is not required
either.
• Mastering will be cancelled if subjected to offset/zeroset.
• Set the reference gage dimension with the offset function and perform mastering.
3.2.11 Reference value
• This function is used to output deviations (measured data - reference value) between the
reference value and the actual measurements of a workpiece for the Analog I/O Interface.
Before analog output, set the reference value and the scale value (gain).
• Measured data is outputted as analog signals at a full scale of ±5V.
Analog signal = (Measured data - reference value) x scale value (gain)
• In the basic setup the following conditions can be set.
a) Whether the target value of GO/NG judgment is be copied to the reference value. If this
is selected, the setup guidance for the reference value will not be displayed, so only the
scale value must be set.
b) It is also possible to set so that tolerance judgment and analog output can take place in
the ready state.
• Analog output is automatically enabled if single-run measurement or continuous-run
measurement is performed.
• If the reference value is being set the deviation value will be output for the RS-232C/GP-
IB interface and the printer if single-run measurement or continuous-run measurement is
performed.
