Operating instructions
10
2.4 Adjusting (calibration)
To obtain accurate weighing results, the balance must be adjusted to match the gravitational acceleration at its
location.
Adjusting is necessary
• before the balance is used for the first time
• at regular intervals during weighing service
• after a change of location.
Procedure
To obtain accurate results, the balance must be connected to the power supply for 20-30 minutes in order to
reach operating temperature before adjusting.
➞ Have required adjusting weight ready (for certified models please refer to the notes below).
➞ Unload weighing pan
➞ Press and hold the «Cal/Menu» key down until “CAL” appears in the display, then release key. The
required adjusting weight value flashes in the display.
➞ Place adjusting weight in center of pan (for certified models please refer to the notes below).
The balance adjusts itself automatically.
➞ When “0.00 g” flashes, remove adjusting weight.
The adjusting is finished when the message “CAL done” appears briefly in the display, followed by
“0.00g”. The balance is again in weighing mode and ready for operation.
Notes
All certified AB-S and PB-S models have an internal adjusting weight and adjust themselves automatically
(when switched on, after about 30 minutes warm-up time, thereafter periodically). The balance is therefore
always within the required calibration tolerances.
For certified PB-S models, manual adjustment with the internal weight is not foreseen, since it is not
necessary.
For certified AB-S models, manual adjustment with the internal weight is possible. It is recommended that
these balances are adjusted regularly, in order to achieve the best results possible.
The adjustment procedure can be terminated at any time with the «C» key. The message “Abort” appears briefly
to confirm that adjustment has been canceled, and the balance reverts to weighing mode.
CAL
CAL donE
2000.00
g
Cal
------
Cal
------
Cal
0.00
g
Cal
------
Cal
0.00
g
Cal/Menu
à
à
à
à
à
à
à
METTLER TOLEDO
F
Cal/Menu
C
On
off
O/T
METTLER TOLEDO
F
Cal/Menu
C
On
off
O/T