KERN & SOHN FOB 30K10LM - Manual (Page 12)

5.6 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.
5.7 Adjusting
The accuracy of the balance can be checked and adjusted at any time with the help
of weights.
Please note:
In a calibrated balance this adjustment option is inactive.
(see chpt. 6.8 calibration).
Observe stable environment conditions. A short warming-up period of about 5 min-
utes for stabilization is useful.
5.7.1 Verifiable Models FOB 1K1M, FOB 2K2M, FOB 5K5M
Ö Switch the balance on using the
key.
Ö Press the adjust switch at the lower surface (see chap. 6.7.4) twice. A numeri-
cal value will appear on the display.
Ö Now press the
key twice, “0” will appear on the display.
Ö Place adjusting weight (for nominal value see “Technical data” capture 1) in
the centre of the weighing plate and then press the key. “CAL” will appear
on the display for approx. 2 seconds, followed by the nominal value of the ad-
justing weight.
Ö Remove the adjusting weight from the weighing plate to complete adjusting.
5.7.2 Verifiable Models FOB 6K2LM, FOB 15K5LM, FOB 30K10LM
Ö Switch the balance on using the
key.
Ö Press the adjustment switch on the bottom of the balance 4 times (see chap.
6.7.4), “CAL” is shown on the display.
Ö Now press the
key, the word “Load” calibration weight will appear on the
display (for nominal value see “Tech. Data” on chapter 1),
Ö Place the weight on the middle of the weighing plate, then press the key.
Ö “CAL” will appear on the display for approx. 2 seconds, followed by the nomi-
nal value of the adjusting weight.
Ö Remove the adjusting weight from the weighing plate to complete adjusting.
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