6.2
CALIBRATION
Units with an 'i' suffix can be calibrated using either internal calibration mechanism or by
using an external mass. Units with an 'e' suffix can only be calibrated with an external
mass. Internal calibration option must be enabled in the setup menu options or else
external calibration mode will be used when the [Cal] key is pressed.
6.2.1 Manual Calibration
Pressing the [Cal] key will start calibration. Calibration can also be initiated by a change
in internal temperature or a set time period as determined by the user.
Pressing [0/T] will abort the calibration at any time.
Calibration should be performed carefully and in conditions of no vibration, air movement
or other disturbance. Make sure the pan is empty, clean, and correctly fitted.
6.2.2 Calibration using Internal Calibration mass (if fitted)
Note: Internal calibration (if fitted) will only initiate if it is enabled as the default calibration
method in the Supervisor level calibration setup menu.
On pressing the [Cal] key the display will show the busy symbol and a line of 7 dashes
and then after a few seconds will display ''. Then the busy symbol and a line of 7
dashes will reappear, followed by ''. Then '' will appear again, followed by
the busy symbol and a line of dashes. Finally '' will be displayed, followed by a
beep and the busy symbol and a line of dashes. A final beep will sound the end of
calibration and the display should return to '. g' or similar. Internal calibration is now
complete and normal operations may proceed.
6.2.3 Calibration using External Calibration mass
Note: Calibration mass used should be a known accurate item, ideally with an OIML
or ASTM/ANSI classification appropriate to the accuracy of the balance.
On pressing the [Cal] key the display will show the balance setting a new Zero condition
by showing "". Make sure the pan is empty then press the [Setup] key to continue
The display will show the busy symbol and a line of dashes and then after a few seconds
will display the required calibration mass. For example, for a 213e model the display will
be " g" where 100 g is the required calibration mass.
Place the selected mass on the balance. The balance will automatically continue. The
display will show the busy symbol and a line of dashes and after calibration is complete it
will sound a beep and display "". Remove the weight. Another beep will be heard
confirming the unloading action. The balance will display the busy symbol and a line of
dashes for a few seconds and then sound a beep and return to normal weighing.
6.2.4 Automatic Calibration
The balance will indicate the need for calibration when the balance has automatic
calibration enabled and the set pre-conditions for automatic calibration have been met.
Conditions that will trigger an automatic calibration are:
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