USER MANUAL
49
_____________________________________________________________________________________________________________________
14.24
Statistical calculations function (StAt)
Attention:
Function is available on demand and it replaces other special functions.
This function evaluates from series of measurements (max 500) statistical parameters of
weighting process. Adding successively measurements to register is automatic and it occur after
the scale is loaded and its indications stabilize.
After each loading printout is made with: number of measurements, result, date and time.
Next measurement is made after taking off earlier load.
For the obtained measurements series the scale evaluates:
- n
- number of samples
- sum x
-
sum of all samples
∑
=
n
x
x
sum
_
-
x
-average value (sum x)/n
- min
-minimal value from n samples
- max
-maximal value from n samples
- max-min
-maximal value minus minima value
- S
-standard deviation
2
)
(
)
1
(
1
∑
−
−
=
n
n
x
x
n
S
- srel
-variance factor
x
S
srel
=
Statistical calculations results can be printed.
Order of operations:
1.
Press
MENU
key.
2.
When
F..-StA
is displayed press
→
T
←
key.
The following options are displayed:
-
F..-P
– statistical data printout,
-
F..-0
- out of function, register zeroing, statistic data printout,
-
F..-1
- enter or continue function,
3.
Press
→
T
←
key when
F..-1
is displayed.
4.
Put on successively objects on pan, (remove after indication stabilization) in order to add them
to measurement register.
5.
In order to obtain printed statistical results from measurements series press
MENU
key.
When sign
F..-StA
is displayed, press
→
T
←
key.
When
F..-P
is displayed press again
→
T
←
key.
