Today, weighing control instruments are used in industrial equipment, food processing and other industries. And we are using electronic crane scales, car scales, electronic forklift scales, etc. There will be some minor problems, how should we carry out repairs.

The fault diagnosis and analysis of the weighing instrument maintenance sensor is used. The fault phenomenon of the automatic weighing instrument is always displayed in the terminal of the system. After the fault phenomenon is manifested, do not blindly disassemble the weighing sensor. Which part of the measurement system. The following methods can be taken:

1. Open the intermediate junction box and use a multimeter to check the working status of each sensor to determine whether a sensor is faulty. Use the above method to narrow down the fault range, find out the fault sensor and keep abreast of the fault occurrence and diagnose the fault. Therefore, faults caused by sensors are often associated with illegal operation or mechanical abnormalities;

Second, check the installation status of the interface MBI shearing weigh scale sensor mechanism;

Third, to eliminate mechanical failures Use a shaker to check the cable for injuries.

Below we have a brief understanding of the maintenance points of automated weighing sensor instruments and the use and maintenance of load cells:

The use characteristics and faults of the weighing instrument sensor:

1. Ambient temperature has different effects on different levels of load cells. The temperature difference between the sensor and the calibration environment at the time of use is very different. Therefore, when the user finds that the sensor has excessive temperature drift during use, measures should be taken to create a local relatively constant temperature environment around it.

2. Zero change caused by overload and eccentric load. In use, if the force application plane is not parallel to the support base surface, the eccentric load condition will be poor. Overload or partial load will cause large plastic deformation of a certain section of the elastomer, and the zero point will suddenly become larger. If the local stress exceeds the strength limit, the sensor will be damaged.

3. Zero point change caused by electromagnetic field interference. If a sudden impact or change in the space electromagnetic field is used, a considerable amount of induced potential is induced on the bridge network or signal transmission line, causing the sensor output to fluctuate.

Precautions for the use of weighing instrument sensors:

1. The screen cover and the case are grounded to ensure that the sensor itself has a stable zero potential;

2. The weighing platform is forbidden to place heavy objects for a long time to prevent the sensor from creeping;

3, should always check the system for any unsatisfactory phenomenon;

4, ground potential grounding should consider the changes in power equipment load and the impact of lightning.

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