22
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 temperature
has changed in relation to the tempera-
ture at the time of the last calibration/
adjustment, or after a defined time inter-
val 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
*= CPA64-WDS models:
factory setting isoCAL off (Code
1 15 1
)
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
).
!
Important note for calibration/adjust-
ment of the CPA2P-F model: position
the cover before calibration/adjustment.
This is necessary to enable automatic
calibration (isoCAL) to take place.
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 of
changes by
CPA2P, CPA2P-F, CPA26P, CPA225D, CPA324S, CPA224S,
CPA124S, CPA64, CPA1003S, CPA1003P, GCA1603, GCA803
1.5 Kelvin
4 hours
CPA623S, CPA423S, CPA6202S, CPA5202S-DS, CPA6202P,
CPA4202S, CPA523S-PCE, GPA5202, GPA3202
2 Kelvin
6 hours
CPA323S, CPA2202S…, CPA34001P, CPA34001S,
CPA223S, CPA3202S, GCA2502
4 Kelvin
12 hours
CPA5201, CPA2201-0CE, CPA10001, CPA16001S
CPA12001S, CPA34000, CPA8201
4 Kelvin
24 hours
These values are also set in the corresponding verified balances
(CPA…-0CE/-PCE models with the -0CE designation).
