Bosche WTS - Programming of System Parameters; Theoretical Calibration

User manual WTS Ver.1.16
Seite 15 von 52
9 PROGRAMMING OF SYSTEM PARAMETERS
From the weight display, press simultaneously keys
and to access the parameter
setting.
: to enter a menu/confirm the data entry.
: to modify the displayed value or menu item.
: to select a new value or modify the displayed menu item.
: to cancel and return to the previous menu.
9.1 THEORETICAL CALIBRATION
This function allows the load cell rated values to be set.
To perform the theoretical calibration set the following parameters in sequence:
-

(default:

): the system full scale is given by one cell capacity multiplied by
the number of cells used. Example of system full scale value calculation: 4 cells of 1000kg
 FULL SCALE = 1000 X 4 = 4000. The instrument is supplied with a theoretical full scale
value

corresponding to 10000. To restore factory values, set 0 as full scale.
-

(default: 2.00000 mV/V): sensitivity is a load cell rated parameter expressed in mV/V.
Set the average sensitivity value indicated on the load cells. It’s possible to set a value between
0.50000 and 7.00000 mV/V. Example of 4-cell system with sensitivity: 2.00100, 2.00150,
2.00200, 2.00250; enter 2.00175, calculated as (2.00100 + 2.00150 + 2.00200 + 2.00250) / 4.
-

: the division (resolution) is the minimum weight increment value which can be
displayed. It is automatically calculated by the system according to the performed
calibration, so that it is equal to 1/10000 of full scale. It can be changed and be variable
between 0.0001 and 100 with x1 x2 x5 x10 increments.
- By modifying the theoretical full scale or the sensitivity, the real calibration is
cancelled and the theoretical calibration only is considered valid.
- If the theoretical full scale and the recalculated full scale in real calibration (see
section REAL CALIBRATION (WITH SAMPLE WEIGHTS)) are equal, this
means that the calibration currently in use is theoretical; if they are different, the
calibration in use is the real calibration based on sample weights.
- By modifying the theoretical full scale or the sensitivity, the system’s parameters
containing a weight value will be set to default values (setpoint, hysteresis, etc.).