Troubleshooting Common Issues with Force Load Cells


Force load cells are essential components in many industrial and commercial applications. They are used to measure the force applied to an object, such as in scales, material testing, and industrial automation. However, like any other equipment, force load cells can encounter issues that may affect their performance. In this article, we will discuss some common problems with force load cells and how to troubleshoot them.

1. Zero Offset Error: One common issue with force load cells is zero offset error, where the load cell displays a non-zero reading when no force is applied. This error can be caused by factors such as temperature changes, mechanical stress, or electrical interference. To troubleshoot zero offset error, you can perform a zero balance adjustment on the load cell using the manufacturer’s calibration procedure. This process involves applying a known force to the load cell and adjusting the zero balance until the output reading is zero.

2. Non-linearity Error: Non-linearity error occurs when the output of the load cell deviates from a straight line when a force is applied. This error can be caused by factors such as incorrect mounting or alignment, overload conditions, or damage to the load cell. To troubleshoot non-linearity error, you can perform a calibration check using certified test weights. If the load cell output does not match the expected values, you may need to recalibrate or replace the load cell.

3. Temperature Sensitivity: Many force load cells are sensitive to temperature changes, which can affect their accuracy and reliability. Temperature sensitivity issues can result in drift or fluctuations in the load cell output. To troubleshoot temperature sensitivity, you can install temperature compensation devices or use temperature-stable materials during installation. Additionally, you can monitor the operating temperature range of the load cell and adjust the calibration accordingly.

4. Overload Protection: Overloading a force load cell can cause damage to the internal components, leading to inaccurate readings or complete failure. To troubleshoot overload issues, you can install overload protection devices or use load cell models with built-in overload protection features. It is important to follow the manufacturer’s recommended load limits and avoid applying excessive force to the load cell.

5. Electrical Interference: Electrical interference from nearby equipment or power sources can disrupt the signals transmitted by the load cell, resulting in unstable or erroneous readings. To troubleshoot electrical interference, you can shield the load cell cables or use filters to reduce noise and improve signal quality. Additionally, you can isolate the load cell from other electrical devices to minimize interference.

In conclusion, troubleshooting common issues with force load cells requires thorough understanding of their operating principles and specifications. By following the manufacturer’s guidelines and implementing proper maintenance procedures, you can prevent and resolve potential problems with force load cells. If you encounter persistent issues or require professional assistance, you can contact Sharp Electronics Pune for expert support and solutions.

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