When your Shimadzu electronic balance displays an "Err" error code, you can follow these common repair steps:

1. Identify the specific Err code:
   • If it shows "CAL E4": This indicates a calibration weight error. Please reconfirm the accuracy of the calibration weight and strictly follow the correct calibration steps again.
   • If it shows "Err OX" (X is a digit) or "CHE X": This suggests an internal abnormality of the balance. It is recommended to contact professional maintenance services for inspection.
   • If it shows "Err6/ErrC": This may be due to an incorrect calibration weight or the need for linear calibration. Check if the calibration weight matches the required specifications or perform linear calibration as per the manual.
   • If it shows "Err7": This means the capacity and sensitivity settings are incorrect. Reconfigure these parameters according to the balance's user manual.
2. Basic pre-checks: Ensure the power supply is stable and no objects are placed on the weighing pan when starting up the balance.
3. Persistent issues: If the error persists after the above steps, check if the sensor connections are loose (if accessible) or contact a professional maintenance team for further diagnosis.

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