How to judge the problem of electronic scale?

1. Electronic scales.

Electronic weighbridges cannot return to zero or runout.

Please observe the surrounding area for the influence of air currents.

Check that the table is flat.

Check if there are electromagnetic fields around.

Second, the screen of electronic scale and electronic weighbridge scale appears battery screen.

It may be that the electronic scale is running out of power, please charge it in time.

If the symbol disappears for a while, please contact the dealer.

3. The electronic scale or electronic scale cannot be charged, the charging indicator light is not lit, and the power is not responded to after charging for half a day.

Disassemble the fuse holder to detect the fuse.

Whether it is well connected.

Disassemble the scale cover to check whether the battery has been aged.

with a multimeter. Measure whether the plug fuse line is turned on.

Fourth, electronic scales and electronic scales cannot be weighed normally or the weighing is inaccurate.

If you buy a new electronic scale or electronic scale, please remove the protective device first.

If the measured value is unstable, check whether the voltage is normal.

The weight weighed out is not accurate, please follow the story to correct it.

5. After the power is turned on, the electronic scale and electronic scale have no display or blurred display.

Check whether the plug and the scale are well wired (pay attention to insurance).

Use a measuring instrument to check whether the battery voltage reaches the rated voltage of the electronic scale.

Check whether the power switch and electronic scale buttons are good.

If it can be turned on, check whether the circuit board is in bad contact.

Sixth, the electronic scale, electronic scale button failure or the corresponding action of the key is incorrect.

Check whether the key body of the electronic scale or electronic weighbridge has seeped into the water.

If the key is damaged, the key socket is defective, please contact the local dealer.

7. The electronic scale and electronic scale suddenly have digital defects, and the display is abnormal.

If the electronic scale shows that the font is disjointed, hyphenated and other phenomena, check whether the plug or LED is in good contact.

<> electronic scale does not display numbers, it may be due to the following reasons:

1. If the number is not displayed, and it can't be turned on, it may be out of power, first check whether the scale battery has power. If there is no power, charge the electronic scale first.

2. If it can be turned on, but the weight is not displayed after it is turned on, you need to check the battery voltage of the electronic scale. When the battery voltage is too low, it needs to be charged, and if it runs out of power soon after charging, it proves that there is a problem with the battery.

3. The sensor line is damaged. If the sensor cable is damaged, you need to open the electronic scale and see if the sensor connector inside is broken. You can try to reconnect the sensor cable, if there is still no response after connecting it, it may be that the sensor is broken.

4. The failure of the display instrument or the damage of the motherboard. The failure rate of the weighing display instrument is very low, and there are few failures in use, and its circuit is more complex, and it is difficult to check. As for the repair of the main circuit board, it is as complex as the repair of other electronic instruments.

If it is a problem with both of them, it needs to be repaired by a professional.

Common Judgment Methods:

1. Intuitive method.

There are many components on the main circuit board of the electronic scale, and many faults are caused by short circuits, open circuits, poor plug-out contacts, and component pipe angle welding. Therefore, when the pricing scale fails, the circuit board should first be inspected by intuitive feeling: sight, hearing, smell, touch and other methods.

2. Comparison and substitution.

In the fault inspection, the electronic scale is compared with the faulty scale with the help of the instrument, and the fault point can be found out quickly. In addition, sensors, circuit boards, power supplies, keyboards and other components are prepared during work.

3. Voltage measurement method.

The electronic scale compares the working voltage of the circuit components and each tube angle of the chip with the normal value, and the place where the voltage changes greatly is the place where the fault is located.

Electronic scale handling skills.

A certain part of the circuit is short-circuited, and the electronic scale then judges the fault point through the results of the oscilloscope or multimeter test. The open-circuit method is to disconnect a certain part of the circuit and then measure the resistance, voltage, or current through a multimeter to determine the fault point.

If you suspect that a component such as a sensor, circuit board, power supply, or keyboard is damaged, replace it with a prepared part, and then observe whether there is any change in the result. The comparison and substitution method can quickly and accurately determine the fault point.

Most of today's electronic scales have an automatic calibration function, as long as the weighing results are within the effective error range, it is not considered bad. If the error is too large, you can check the battery level first, replace the new battery, if there is still a problem, then it may be broken.

The one with less is right, you have to believe in yourself, and a few pounds more is bad.

Simple, put three bags of salty salt, about a pound and a half.

What are the reasons for the inaccurate number of electronic scales? Hello dear! 1. The performance of the electronic scale sensor is poor, and the creep is too large, which causes the zero point of the electronic scale to be cheap and out of tolerance, and the display value of the electronic scale is inaccurate.

2. The linearity of the sensor is not good, and the deviation of a weighing section is seriously caused by the inaccuracy of the electronic scale, and the above faults must be replaced with the best sensor in order to completely solve the problem. 3. Due to the poor installation of the electronic scale carrier (platform bracket), the protection point is topped and rubbed, so that the weighing force cannot be completely transmitted to the sensor, resulting in the inaccuracy of the electronic scale. The carrier protection points must be readjusted.

4. The use of environmental sensitive skin to know the environment (high temperature, high humidity, electromagnetic interference) will also cause the display value of the electronic scale to be inaccurate and unstable. All kinds of interference need to be principled. 5. After using the electronic scale for a period of time, the original calibration bridge elimination point will change due to different degrees of change in the output signal of the sensor, and the electronic scale can be avoided as long as the electronic scale is recalibrated.

Hope it helps!

How to look at the electronic scale, hello, find a known weight of something to weigh it? For example, dumbbells (marked with weight), food marked with weight (biscuits), or simply go to the supermarket to sell bags of rice Calibration method: 1

Pick up the weighing pan and you will see that the electronic scale has several screws in the middle of the scale frame and the sensor, generally one on each corner, a total of four, these four screws are called protective screws, in order to protect the sensor from damage during transportation. 2.The protective screws that protect the electronic scale sensor or device during transportation will be removed or screwed to the end, so that there are some gaps between the scale frame and the protective screw.

3.After removing the protective screws or screwing them to the bottom, the electronic scale can be used normally, and there will be no inaccurate weighing. II. 1

Find another scale to compare. Is there anything at home that knows the quality, weigh it. 2.

Take a standard weight and put it to the test. 3.Take a carton of 300ml of milk, it should be 3

Buy standard check weights, buy standard codes yourself, do 5 points of confirmation, linearity, repeatability I hope my answer is helpful to you, Finally, I wish you good health and a happy mood! <>