Error Code Explanation
Err 220 ROM checksum error; the data in the internal ROM
of the balance processor (AOC) are incorrect.
Err 230 RAM read/write error; the data in the internal RAM
of the balance processor AOC is incorrect, or not
possible.
Err 237 EEPROM checksum error in the linearity range; the
balance has not yet been linearized, or the data in
the internal EEPROM of the balance processor AOC
are incorrect.
Err 239 EEPROM checksum error in the linearity weight
range; the stored factor for the linearity weight
is not within the permissible tolerance range or is
incorrect.
Err 241 EEPROM checksum error in the permanent area;
the data for the balance operating menu in the
internal EEPROM of the balance processor AOC are
incorrect.
Err 243 EEPROM checksum error in the menu range;
the inalterable data in the internal EEPROM
of the balance processor AOC are incorrect.
Err 245 EEPROM checksum error in the calibration/
adjustment range (zero point); the balance has not
yet been calibrated or the data in the internal
EEPROM of the balance processor AOC are incorrect.
Err 247 EEPROM checksum error in the adjustment/
calibration range (span); the balance has not yet
been calibrated or the data in the internal EEPROM
of the balance processor AOC are incorrect.
Err 249 EEPROM checksum error in the calibration weight
range; the factor stored for the internal weight cali-
bration exceeds the tolerance range, or is incorrect.
L The weight on the pan is below the weighing capa-
city; the pan is not on the balance, the balance was
incorrectly adjusted or the preload was incorrectly
adjusted.
H The weight on the pan exceeds the weighing capa-
city; the weight is too heavy; the balance was
incorrectly adjusted; or the preload was incorrectly
adjusted.
Remedial Measures
Follow the procedure in “Exchanging the Main PCB.”
Follow the procedure in “Exchanging the Main PCB.”
Overwrite the incorrect data record using the MC1 Server 4.9.
Then proceed as directed in „Adjusting the Linearity” and
“External Calibration.”
Follow the procedure for “Overwriting the Internal Linearity
Weight.”
Overwrite the incorrect data record using the
MC1 Server 4.9. If the error remains, then proceed with
“Exchanging the Main PCB.”
With the menu access switch unlocked, access the menu
(display will fl ash). Exit the menu and store (press the tare key
for more than 2 sec.) => The menu is now reset. Checksums
are corrected.
Perform “External Calibration/Adjustment.”
Perform “External Calibration/Adjustment.”
Follow the procedure for “Overwriting the Internal
Calibration Weight.”
Make sure there was no operating error. If the error remains,
perform “External Calibration/Adjustment” or follow the
procedure for “Adjusting the Preload.”
Make sure there was no operating error. If the error remains,
perform “External Calibration/Adjustment” or follow the
procedure for “Adjusting the Preload.”
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