Common faults and maintenance of electronic scales
Weighbridge. Electronic Weighing Method >> Use and Maintenance of Electronic Weighing Apparatus
First, check whether there is any cargo on the weighing platform before starting the machine, whether the connection between the sensor signal cable and the instrument is correct, and whether the weight of the weighing body is flexible. Second, turn on the power, preheat the meter (15-30 minutes), observe whether the meter self-test is normal.
3. When weighing, the goods should be handled with care, and the goods should be placed in the middle position of the weighing platform. The overweight cargo and the car are not allowed to be scaled. 4. When the truck scale is weighed, it should be slowed down and down, and it is not allowed to brake on the weighing platform.
5. After the weighing is completed, the goods and vehicles should be removed in time. It is not allowed to stay on the weighing platform for a long time to avoid damage to the sensor due to long-term pressure. 6. When the instrument is deactivated, the power should be turned off first, and the power plug should be unplugged; it should be deactivated when it is raining and thundering to avoid damage to the instrument and sensor.
7. Regularly clean foreign matter and dust between the scale body and the foundation and around it to prevent the foreign matter from colliding with the scale body, resulting in inaccurate weighing. Maintenance of electronic scale: No display: Whether the internal battery undervoltage causes automatic shutdown (with built-in battery model) Whether the AC power supply voltage matches the voltage indicated by the product. The fuse is blown (using AC motor type) 2 Cannot charge: AC power supply voltage Whether it matches the voltage indicated by the product. Whether the fuse is blown (using AC motor type) 3 Digital jitter: Is the sensor connection good and the sensor is damp, the sensitivity setting is too small, the AD conversion rate is set too high, is there any Vibration, wind blows, etc., whether the weighing platform touches foreign objects. 4 Linearity is poor: Whether the sensor protection device works linearly (with linear calibration model) Whether the weight used for linear calibration is correct (linear correction model) ), Is the sensor overload 5 Cannot print: Is the printer type set correctly, the reading is stable, the stability mark is bright, the printer connection is plugged in, the printer power is on, and the printer is online (only 24 pin printer) 6 Cannot accumulate: Whether to return to zero before accumulating, whether it is stable when accumulating key 7 Cannot communicate through serial port: wave Rate, transmission mode setting is correct, RS-232C connection is good, RS-232C connection is too long 8 Boot does not return to zero: Whether the auto zero range is set too small, there are items on the scale. 9 Manual return Zero invalid: Whether the manual zero setting range is too small, whether the current reading is stable 10 Cannot be weighed: Whether the sensor connection is firm, whether it is calibrated (linear correction must be performed first for linear calibration models) 11 Whether to enter with the super user password (Software protection model), whether short-circuit correction jumper (lead protection model). 12 Does not return to zero after unloading: Whether the zero tracking setting is too small, whether the weighing platform touches foreign objects. 13 : Invalid backlight: whether the battery is insufficient Whether the current weight is less than the small amount of zui. 14 Checking weight is invalid: Whether the current weight is less than the small amount of zui, check whether the tweet is turned on. 15 Start beep: Whether it is calibrated, whether the sensor connection is intact, whether it is set to check the Shenzhen area for free Home delivery, one year warranty, lifetime maintenance.
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