Statistical Calculation Mode - A&D FZ-i WP Series Instruction Manual

6.6.

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.
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 ON:OFF key will not initialize the
balance.)
 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 =
6.6.1. Getting Started
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
1ap fnc .
3 Press the PRINT key to display apf 0 .
4 Press the RE-ZERO key several times to display
apf 2 .
To select statistical items to output, go to step 5.
To store the statistical function mode setting, go to
step 7.
To disable the statistical calculation mode, press
the RE-ZERO key to select apf 0 .
where Xi is the i-th weight data,
N is number of data.
Standard deviation
x 100 (%)
Average
Maximum value - Average
Average
Minimum value - Average
Average
To store the setting,
23
x 100 (%)
x 100 (%)
Press and hold
for 2 seconds
Press several times
Press several times
To select statistical
go to step 7.
items to output,
go to step 5.