20
isoCAL:
Automatic Calibration and Adjustment
The menu code setting
1 15 3
must be
selected in the Setup menu.
– Temperature range with isoCAL:
0°C to +40°C
The “AUTOCAL" display automatically
begins flashing if the ambient tempera-
ture has changed in relation to the
temperature at the time of the last cali-
bration/adjustment, or after a defined
time interval has elapsed.
The balance is telling you that it wants to
self-calibrate and adjust.
This adjustment prompt is activated
when:
– The change in temperature or the
elapsed time interval is greater than that
shown in the table below
– The load on the pan has not been
changed within the last 2 minutes
– The balance has not been operated within
the last 2 minutes
– The weight on the pan is no more than
2% of the maximum capacity of the
balance
– Then let the balance perform the
adjustment procedure
When these requirements are met,
the following symbols are displayed:
–
C
in the measured value line
– AUTOCAL flashes in the symbol display
In the Setup menu, you can configure the
balance to display the adjustment prompt
only, without performing
calibration/adjustment automatically
(menu code
1 15 2
)
isoCAL Deactivated on Verified Balances:
The permitted operating temperature
range for balances used in applications
subject to legal metrology (legal for
trade) is restricted as follows:
– Balances of accuracy class
k
:
+15°C to 25°C (+59 to +77°F)
– Balances of accuracy class
K
:
+10°C to +30°C (+50 to 86°F)
Fully automatic adjustment is initiated under the following conditions:
Model
When the
After a time
temperature
interval
changes by
of
LE26P, LE225D, LE324S, LE244S
1.5 Kelvin
4 h
LE1003S, LE1003P, LE623S, LE623P, LE6202S,
LE5202S-DS, LE6202P, LE4202S
2 Kelvin
6 h
LE323S, LE2202S, LE34001P, LE34001S
4 Kelvin
12 h
LE5201, LE2201, LE10001, LE16001S
4 Kelvin
24 h
These values are also set in the corresponding verified balances (LE models with the -0CE
designation).
