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No. 99MBC095A
5. MEASUREMENT MODE
• Measurement:
PROG
BUSY
RUN
+NG
GO
-NG
Step 1: In the stand-by state the indicated value includes
errors (i.e. it is smaller than the actual dimension),
since the measured value of Segment 2 is displayed.
At this stage begin rotating the workpiece.
PROG
BUSY
RUN
+NG
GO
-NG
Step 2: Enter
DATA C/RUN
.
When “ ” is displayed in the lower
display section, the zero-run measurement
commences.
PROG
BUSY
RUN
+NG
GO
-NG
Step 3: If
DATA C/RUN
is entered again after the
workpiece has been rotated for more than one turn
since the start of measurement, the measured value
will be latched on the display and then the
measurement is completed.
TIP Relationship between “Number of workpiece revolutions” and “Number of averaging
times”
• The following table shows the relationship between “Number of workpiece revolu-
tions” and “Number of averaging times” if 360 pieces of data are obtained while
the workpiece rotates one full turn (at 1° increments). Use it as a standard.
Number of averaging times
32 16 rpm approx 3.8 sec
64 8 rpm approx 7.5 sec
128 4 rpm approx 15 sec
256 2 rpm approx 30 sec
512 1 rpm approx 60 sec
1024 0.5 rpm approx 120 sec
Number of workpiece revolutions
Measuring time
(Time required for one revolution)
• The more the number of averaging times, the repeatability will be more stable. In
order to measure at a highest accuracy, set this number of averaging times as
large as possible (the number of revolutions is as small as possible).
