KERN & SOHN CM 50-C2N - Manual (Page 8)

CM-BA-e-0618 8
6.4 Draft shield + weighing container (CM 50-C2N, CM 500-GN1)
6.5 Initial start-up
A warm-up time of 1 minutes stabilises the measured values after switching on.
The accuracy of the balance depends on the local acceleration of the fall.
Please be sure to observe the information in the chapter on adjusting.
6.6 Adjustment
As the acceleration value due to gravity is not the same at every location on earth,
each balance must be coordinated – in compliance with the underlying physical
weighing principle - to the existing acceleration due to gravity at its place of location (
only if the balance has not already been adjusted to the location in the factory). This
adjustment process must be carried out during the initial start-up, after change in lo-
cation and variation of surrounding temperature. It is also recommendable to adjust
the balance periodically during weighing operation in order to obtain exact measured
values.
6.7 Adjusting
Using a precision weight, the accuracy of the balance can be checked at any time
and adjusted.
Adjustment procedure:
Check that the surrounding conditions are stable.
A short warm-up time of about 1
minutes are recommended for stabilisation.
Press key approx. 3 seconds, ”CAL ” and then the exact weight of the adjusting
weight will appear the display.
Place the adjusting weight on the centre of the weighing plate.
“ F” will appear somewhat later, and then turn off.
In case of an adjusting error or a wrong adjusting weight “ E” appears in the display.
Before weighing:
• Put on Weighing pan
• Unfold draft shield
• Place the weighing material
on weighing plate.
• put on draft shield.
After weighing:
• Put Draft shield and weighing
pan over weighing plate