What factors have an impact on the accuracy of the weighing module

There are many types and structures of weighing modules, and they are also very versatile. The weighing module sensor can be completely floating between the weighing module and the ground scale, or it can be reliably connected directly through the grounding screw on the shell, depending on the customer's use of the weighing module.

Introduction of weighing module grounding operation:

1. In order to meet the requirements of anti-common mode interference, a dedicated grounding stake should be set up between the sensor and the ground, and be reliably connected to the sensor housing.

2. After the sensor is properly grounded, it not only effectively suppresses the common mode interference caused by the ground potential change, but also eliminates the interference signal generated on the bridge network due to the influence factors such as spatial electromagnetic field and electrostatic induction, because the sensor housing itself is an external The shielding cover can protect the electronic circuit of the strain gauge inside the elastic body of the sensor.

3. If there is no interference introduced by the propagation path of the grounding wire, for general weighing modules, no insulating pads are set between the load cell and the mounting base, but directly with the embedded iron plate or ground screw of the weighing module. connection.

Factors affecting the accuracy of the weighing module:

    Piping design and principles are the main factors that affect the accuracy of the weighing module. Any tank scale has a feeding and discharging pipeline. If the pipeline is installed improperly, it may push or pull the tank and cause weighing errors. This situation should be avoided as much as possible in the pipeline design.

The following guidelines should be followed when designing piping systems:

    1. All pipes connected to the tank should be laid horizontally to prevent the tank from hanging in the air.

    2. Minimize the deflection of the tank scale support structure to reduce the change of pipeline deflection.

    3. The first connecting support point of the pipeline should be set as far away from the tank as possible, which will increase the elasticity of the pipeline. In the case of meeting process requirements, the smaller the diameter of the pipe, the lighter the pipe specification, the better, which can also increase the flexibility of the pipe.

    4. Use soft connections whenever possible.

If you want to know more about weighing modules, then come to Changzhou Hentuo Electronic Weighing Instruments. Our company has more products: load cell, electronic scale, junction box, weight transmitter, etc. You are welcome to inquire!