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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=
Coefficient of variation (CV)=
Relative error of maximum value =
Relative error of minimum value =
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
of the function table is displayed, then release the key.
2.
Press the SAMPLE key several times to display 1ap 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
RRE-ZERO
key to select
where Xi is the i-th weight data,
Standard deviation
Average
Maximum value - Average
Minimum value - Average
SAMPLE key (for 2 seconds) until
.
.
) .
N is number of data.
x 100 (%)
Average
Average
ba5fnc
.
97
Store the setting
x 100 (%)
x 100 (%)
Press and hold
(for 2 seconds)
Press several times
Press several times
Output statistic calculation
Step7
Step5
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