Common fault of hook scale and its solution

Common fault of hook scale and its solution 1, the electronic crane scale does not turn on Check the maintenance personnel before maintenance to confirm whether it is caused by the problem of fuse, power back switch, power line, etc. Check whether the transformer of electronic crane scale has AC110V/220V input voltage and corresponding output voltage. Remove the battery and use a multimeter to check whether the battery voltage is normal. If the voltage is lower than the specified voltage, please charge; If the battery shows no power after full charge, please replace the battery. 2. Electronic crane scale is not displayed Check whether the battery in the machine is low voltage caused by automatic shutdown. Whether the fuse is blown (using ac). 3. The electronic crane scale cannot be charged Check whether the supply voltage is in accordance with the voltage marked on the product. Whether the fuse is blown (using ac). 4, electronic crane scale number jump Is the sensor connected well? Whether the sensor and display are damp, and whether the sensor setting is too small. Whether the AD conversion rate is set too high, whether there is vibration, wind and other interference. Whether the scale body touches foreign body. 5. Electronic crane scale with printing function cannot be printed Whether the printer type is set correctly, the reading is stable, and the stability marker is bright. Whether the printer connection is plugged in, whether the printer is online. 6. Electronic crane scales cannot accumulate Is it zero before accumulation? Is it stable when pressing the accumulation key? 7. Unable to communicate through serial port Baud rate, send mode Settings are correct Is the connection of RS-232C in good condition? 8. Power on does not return to zero The automatic zero range setting is too small. Is there any dirt on the weigher? 9. Manual reset is invalid The manual reset range setting is too small. Is the current reading stable? 10. Electronic crane scales cannot be weighed Whether it has been calibrated (linear calibration must be done first if there is a linear calibration type).