Inspection and Handling of the Failure of Weight Electronic Scales

Weighing electronic platform scale is a weighing device widely used in industry. With the continuous application of weighted electronic platform scales, users will inevitably find some problems; then, when the electronic weighing platform scale fails, what should we do? For users who want to know about it, you may wish to check the article on checking and handling electronic scale weighing and troubleshooting. I believe that it will be helpful to everyone.

Inspection and treatment of electronic weighing scales failure:

1, accurately find the fault

The failure of weighing electronic scales will seriously affect the accuracy of the measurement. In order to troubleshoot the first step, what you should do is to accurately find the fault. If the meter is turned on, you can use the sensor simulator to check the fault. If the work is normal, it indicates that the fault occurs in the weighing part. If the meter fails to work properly, it indicates that the instrument part is faulty.

If the body fails, first check whether the terminal block inside the junction box is damp, or it is aging, corrosion, etc., or it may be in poor contact condition. The method of elimination is simple: use hair dryer to dry, or directly Replace the wiring board, add desiccant and so on. A multimeter should also be used to check whether the cable is short-circuited or disconnected. Advantage inspection stations will deform to varying degrees because of the attachment. It should be ensured that the degree of deformation of the inspection table after the load is maintained with the level of the table. In addition, it should be ensured that the limit adjustment is between 2-3 mm clearance, and the top dead-end condition is forbidden.

The failure of the instrument must be checked by professional inspectors. In order to make the system recover quickly, the user can use the method of replacing the PCB board to restore the system to normal, and then send the damaged PCB to the professional maintenance department. repair.

If the sensor is faulty, you can check the fault by using a digital multimeter to measure the resistance. If you find that the measured resistance does not match the actual one, you need to replace the sensor.

2, LCD LCD display can not display the complete digital phenomenon

In the course of the use of electronic weighing scales, sometimes the display liquid crystal display can only display part of the number or not at all. This type of reason is most likely to be caused by the welding of the liquid crystal film, if this method is used. If the fault is still not solved, the new liquid crystal film needs to be replaced in time. In summary, the first thing that should be considered is to check the condition of the circuit, because experience shows that it is very likely that the circuit is disconnected. If tin shorts appear on the IC pin, it should be solved according to the method of welding.

3, weight electronic platform scale button fault troubleshooting

The bad button on the weighing electronic platform scale is a common fault. If this happens, the K/B test should be updated first. If the new K/B testing function is normal, the fault can be judged as the K/B system of the original machine. To the damage, then check whether the circuit between the K/B and the CPU is short-circuited, or cold-welded. After that, if the K/B pin has a bad contact, check whether the secondary body is in the end. Short circuit or short circuit.

4, the loss of scale failure after the inspection is completed

In general, if the weighing electronic scales are in normal operation and weighing inaccurate conditions occur, the sensors should be checked for problems. If there are no abnormalities, they are more difficult and should be checked repeatedly. If the gasket is worn badly, it will deviate from its original position during use and appear to be in a floating state, which may lead to a loss of balance after the inspection is completed. At this time, new gaskets or stuffed objects should be replaced to make gaskets. Return to the original position and ensure that the electronic weighing device accurately weighs.

5, weighing electronic platform scale load data is not allowed to fault

If it is found that there is a significant deviation between the weighing data of the weighing electronic platform scale and the actual quality, it is firstly necessary to consider whether there are problems in several aspects, whether the stabilized voltage supply is stable, and whether the operational amplifier circuit works normally, and the various parts of the sensor. Whether there is vacancy or friction, whether the internal code value is stable, and whether there is foreign matter in the circuit board of the A/D circuit and the data is not accurate, it is also necessary to check whether the feedback resistor has poor contact. In short, there are many reasons that lead to weightlessness of weighted electronic platform scales. If a failure occurs in this area, careful full-scale inspections are required until the failure is resolved.
 

Weight electronic scale detection and maintenance:

In order to prolong the service life of weight-counting electronic platform scales and also to ensure the weighing quality of weight-measuring electronic platform scales, it is usually necessary not only to pay attention to the detection and maintenance of electronic weighing scales, but also to maintenance. When using electronic weighing platform scale measurement, we should first carry out some basic inspection work before starting the machine. If there is still a numerical display on the weighted electronic platform scale, the fault should be solved in time, and the sensor circuit must be solved. Check whether there is a problem, because the sensor is the core component of the electronic weighing instrument. If there is a problem with the sensor, it will directly lead to weighing failure. After the basic work check is completed, the machine should be given sufficient warm-up time to ensure the normal use of the instrument. In actual operation, attention should be paid to the strength of the goods and to avoid damage to the electronic weighing scales. It should be placed as far as possible in the middle of the electronic weighing scales. This can effectively avoid the occurrence of deviations due to long-term use of the sensors. In addition, if the use is over, the electronic weighing device should turn off the power in a timely manner. If extreme weather, such as thunderstorms, occurs, the electronic weighing device cannot continue to weigh and prevent the electronic product from being damaged by lightning. In short, the rational use of electronic weighing instruments not only in the presence of problems in the timely detection of the fault site and solve, and usually should also do a good job of repair and maintenance work, so not only can extend the service life, but also contribute to the stability of its performance.

After understanding the above contents, we have generally cleared the check and handling of the electronic weighing scales; if you have other questions about weighing electronic scales, you may wish to call our company for advice. This article is provided by Shanghai Shigan Industrial Co., Ltd. Thank you for your long-term support and trust; our company specializes in producing and supplying electronic weighing scales, counting electronic platform scales, waterproof electronic platform scales, explosion-proof electronic platform scales, and providing non-standard electronic scales, and interested users are welcome Call us to learn more about it

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