As a kind of electronic weighing equipment, the hanging scale will inevitably show the condition of forbidden weighing values due to various conditions in the process of application. So how to debug the hanging scale when it shows the correct forbidden value. Here are some suggestions:
1. Look at the value
If the value is within - 50KG, it is because the core of the sensor is an elastomer. If the elastomer is not reset, the electronic weighbridge will show a small negative number, such as - 10-20KG. These are normal. Press the external zero button
2. Present negative numbers
For example, if a heavy object is on the electronic hanging scale and someone presses the zero button, when the heavy object is separated from the hanging scale, a negative number will be generated, which is the same as the weight of the heavy object.
3. External first, then internal
Don't open the enclosure without moving. It is not an expert practice to like to spread the stall without first judging and cleaning. Electronic weighbridge manufacturer Looking forward to opening the case to see where there is a disconnection or obvious fault, it is purely a chance, even if the luck is not always the case. About 50% of the problems are caused by the external environment, operation, cleaning, etc. If the power is off for a long time? Is the temperature difference between day and night great? Is the position of the scale placed close to the elevator? What other instruments are in use near the instrument? Is the computer setup accurate? Etc.
4. Repeat the problem in person (if it can be repeated)
Do not trust the dictation or report of users or third parties. Carefully observe, do not trust the user's dictation, the electronic weighbridge performance, especially the third party's report. In order to shirk their responsibilities, some weighbridge operators will say that the instrument is suddenly I didn't move anything, etc. I can understand all these. The engineer should be able to handle it properly.
5. Power first, then host; First accessories, then host
Check whether the power supply is stable, the load is too heavy, the ground wire of the scale is outstanding, the electrodes and other accessories are outstanding and normal, and the interfaces are accurate.
6. Make full use of all kinds of keys, display screens and operation or repair procedures on the panel of the scale instrument to do some cleaning, which requires extreme understanding of the structure. (Main process)
7. Understanding the user's operating habits, the structure and level of operators, the economic situation of the department, etc. will also be very helpful for the repair of the scale. If we can infer how the cleaning and maintenance are going, whether we want to update the idea (otherwise, no matter how it is repaired, we will not say yes), etc.
