Berthold LB 442, Operating Manual

Page: 46 / 158

5.2 Getting Started
44
b) Calibration
Proceed as follows
□
In the main menu, select sk1: Calibrate and then the
sk2: Calibrate submenu.
□
Select the product to calibrate (no. 1...10). Select the
same product number in the Measuring Parameter
menu!
□
Select sk1: Data Input submenu.
□
Load product on conveyor belt and start conveyor belt.
□
When the product has reached the measuring frame,
push the < run > button. The computer starts counting
the time and averages the count rate and speed over the
measurement.
□
If the material used for comparative weighing has
passed the measuring frame, push < run > to stop the
measurement. The averaged count rate and belt speed
as well as the measuring time is displayed.
□
If you confirm the 3 values with < enter >, the prompt
Comparative weight appears.
□
Enter result of comparative measurement.
□
Confirm value with < enter >.
□
Go to next calibration point with < more >. To use an-
other calibration point, proceed as described. To use no
further calibration point, enter „0“ cps at the following
Rate and confirm with < enter >. The values of this and
all following calibration points are then not used for cal-
culation of the calibration curve.
□
Press < more > to scroll through the calibration points
that are not used. The display returns to the submenu
group sk1: Data Input/sk2: Calculate .
□
Select sk2: Calculate .
□
Select calibration mode lin/squ/cub/auto. Calibration is
performed as soon as you confirm the calibration mode
with < enter >.
□
Then you can call the results with < more >: depending
on the selected calibration mode: linear/square/cubic
coefficient; and square error.
□
If necessary, enter a Factor or an Offset (see section 8.2
"Correction of Display Value " on page 77).