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Maintenance Process：Low alarm sensor zero. Using alternative method first determine whether the instrument failure; checking whether the sensor wiring disconnected phenomena; put a weight on the scale platform re-boot, if you can boot normally zero the sensor is indeed too low, you should consider replacing the sensor.
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Maintenance Process：High alarm sensor zero. Using alternative method first determine whether the fault instrumentation; see if there is a short circuit on the sensor or sensor wiring plug is an oxide film; exclude the possibility that in the future these two proposed replacement sensor.
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Maintenance Process：CPU detects abnormal factor, you need to be re-calibrated electronic scales.
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Maintenance Process：Sensor zero overflow alarm. Proposed to replace the sensor.
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Maintenance Process：CPU detects abnormal weight factor, you need to be re-calibrated electronic scales.
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Maintenance Process：Battery voltage is too low alarm should immediately charge, 48 hours after the fault is still not lifted, it is recommended to replace the battery.
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AC not boot
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DC can not boot
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Small weighing not be displayed
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Maintenance Process：Take a look at the fuse, and then see if there is 220V AC input voltage, output voltage side of the transformer if the output plug is loose, check the switch is open circuit, whether there is connection loss, sweating and other phenomena occur.
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Maintenance Process：See if you can plug in the AC power; measure battery voltage exceeds 5.8V, the voltage is too low, in order to make the battery last longer, the software automatically turn off the meter; Check the battery cable is off or Weld and other phenomena occur; motherboard power Are there pin input plug off; checking "ON" button is invalid.
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Maintenance Process： Sensor zero is too low. Fill 10% of the objects after weighing the new boot, if small weighing can show, you can modify the hardware, add zero resistance calibration, as is still not displayed, you need to replace the sensor.
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