RADWAG WLC 0,6/A1/C/2 Precision Balance - Manual (Page 54)

- 54 -
17. SCALE CALIBRATION
In precise scales changes of gravitational acceleration have noticeable
influence. The gravitational acceleration changes with altitude and
latitude. Every scale has to be adjusted to the place of use especially
when the place changes. Frequent calibration also prevents weighing
process from the influence of humidity and temperature.
For assuring the maximal accuracy of weighing a periodical user
calibration is required.
Calibration should be performed:
 Before weighing process,
 After a long break between series of measurements,
 After the ambient temperature change.
Conditions of trigerring off calibration:
 Automatic internal calibration:
 Started by adequate temperature change,
 Started after adjusted time period,
 Started after powering up the device,
 Manual internal calibration started from the keyboard,
 Calibration with an external weight.
Caution:
Internal calibration is accessible only in WLC…/C/2 scales of WLC series.
In WLC…/C/2 scales calibration with an external weight is not accessible.
It should be remembered that the calibration process should be performed
with the empty pan! The calibration process can be terminated by
pressing Esc when necessary.
17.1. Internal calibration
An option for WLC…/C/2 scales of WLC series only
The internal calibration process can be initiated manually or automatically.
Press Cal to initiate it manually. Automatic calibration system performs
internal calibration and informs a user on the display about the course
of the process.