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37
AD-4408A
10. Maintenance
10.1. Error Messages
If an error message is displayed, refer to the chart below to take proper measures.
Error message
Cause
Remedy
C5 err
Program checksum error
Repair is required.
ad err
Data can not be acquired
from the A/D converter.
Repair is required.
ra err
Data can not be written into
the backup memory.
Repair is required.
fraerr
Correct data can not be
read from the FRAM.
Perform initialization.
If initialization does not clear the
error, repair is required.
Calerr
Calibration data is not
correct.
Perform calibration.
C err
X
Calibration error
Refer to “7.4. Calibration Errors”.
err dt
The setting value is out of
the settable range.
Check the setting value and set
again.
10.2. Check Mode
The check mode checks the performance of the display, key switches and external I/O.
10.2.1. Entering the check mode
Step 1 While pressing and holding the ENTER key, press the F key.
fnc
is displayed to indicate that the indicator will enter the general function
mode.
To go back to the weighing mode, press the ESC key.
Step 2 While pressing and holding the ZERO key, press the ENTER key.
1
Chc
is displayed to indicate that the indicator will enter the check mode.
Press the ENTER key again to display an item to be checked.
Step 3 Press the
∧
or
∨
key to select the item to be checked and press the ENTER key
to enter the check mode of the selected item.
To exit from the current mode, press the ESC key.