Statistics; The Histogram; The Chart Of The Average (Xbar) - sylvac D300S V2 Manuel D'utilisation

Statistics

This mode enables the display of statistics. They are calculated individually
per channel and are based on the values recorded by the user.
1 Window showing details of channel X
2 Return to default screen
3 Displays the statistics of the next channel
4 Prints the statistics
5 General configuration
6 Display type (shift to measure mode)
7 Erase the recorded values of the active channel
8 Display the statistics table
9 Display the chart over the range (R)
10 Display the chart of the average (Xbar)
11 Display the histogram
12 Display the recorded value

The Histogram

The chart of the average (Xbar)

Values beyond the control limits are indicated in red.
Values within the control limits are indicated in green.
1
3
The number of classes of the histogram
is fixed at 9. On the vertical axis (Y axis)
we have the amount in % of recorded va-
lues in each class.
The lower and higher tolerance limits
are indicated on the X axis. The values
beyond the tolerance limits of over 3
classes are not displayed. N indicates the
number of values displayed in the histo-
gram over the total amount of values.
UCL : Upper control limit
X+A * R, with A =0.577 for n=5
2 2
LCL : Lower control limit
X-A * R, with A =0.577 for n= 5
2 2
21
2
4 5 6
E
12
11
10
9
8
7