Sartorius QC150FEG-S, Руководство по эксплуатации, Страница: 77 / 148

Reference Sample Updating
After pressing u /
w
to start the counting application, you can change the
reference sample quantity as desired. You either can update the reference sample
quantity manually, by pressing
u /
w
, or have it updated automatically during
the counting process. Automatic reference sample updating is practical as long
as the reference sample quantity is lower than 100 pieces. With this function, the
reference weight is re-calculated after stability has been reached and after
accuracy testing; the updated sample quantity is calculated from the total weight
and the displayed number of pieces. The abbreviation –
UPD – is displayed to
indicate that the reference sample quantity is being automatically or manually
updated. You should update the reference sample quantity when either half or
twice the number of pieces is placed on the scale. Updating with approximately
double the number of pieces can be repeated several times.
Reference sample updating Code Changes
Blocked 3 12 1
Manual 3 12 2
Automatic 3 12 3 *
Note:
The reference sample cannot be updated if you have entered the reference weight
using the numeric keys!
Practical Example:
“Automatic Reference Updating with Constant Piece Weight”
Place the container on the scale
Press = /
z
Place the reference sample quantity (e.g. 10 pieces) in the container.
Press u /
w
= Start counting function
Place nine more pieces in the container.
The reference weight is re-calculated from the total weight and the displayed
number of pieces (reference sample updating). The abbreviation –
UPD
–
is displayed, and an acoustic signal is given when the weight is stored.
* = factory setting
3–10