97
(for 2 seconds)
14.Statistical Calculation Mode
The statistical calculation mode statistically calculates the weight data, and displays or outputs the
results. To use the statistical calculation mode, set the "Application function (
apf
)" parameter of
“Application (
ap fnc
)" in the function table to "
2
", as described below. To return to the normal weighing
mode (factory setting), set "Application mode (
apf
)" to "
0
".
Statistical items available are number of data, sum, maximum, minimum, range (maximum-minimum),
average, standard deviation and coefficient of variation. What statistical items to output can be
selected from the four modes in the function table ( ) .
□
The wrong data input can be canceled by the key operation, if immediately after the input.
□
Turning the balance off will delete the statistical data.
□
The standard deviation and coefficient of variation are obtained by the equation below:
Standard deviation=
Standard deviation
Coefficient of variation (CV)=
Average
Maximum value - Average
Relative error of maximum value =
Average
Minimum value - Average
Relative error of minimum value =
Average
Note
□
When there is data with a minimum display digit off, the calculation result is displayed with the
minimum display digit off. (Minimum display digit is rounded off.)
□
When the data memory function is in use, the statistical calculation function cannot be used.
□
When registering the warning function of the minimum weighing value, the statistical calculation
function cannot be used.
14-1 How To Use The Statistical Calculation
Switching to the Statistical Function Mode (Changing The
Function Table)
1. Press and hold the SAMPLE key (for 2 seconds) until
ba5fnc
of the function table is displayed, then release the key.
2. Press the SAMPLE key several times to display
1
ap fnc
.
3. Press the PRINT key to display
.
4. Press the RE-ZERO key several times
to display .
To select statistical items to output, go to step 5.
To store the statistical function mode setting, go to 7.
To disable the statistical calculation mode, press the
R
RE-ZERO key to select
.
where Xi is the i-th weight data,
N is number of data.
x 100 (%)
x 100 (%)
x 100 (%)
Press several times
Press and hold
Press several times
Store the setting
Step7
Output statistic calculation
Step5
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