Due to the nature of scales and the environments they operate in, scales require re-calibration on a regular basis, in most cases a minimum of once a year. In some instances where there is a high-cost commodity being weighed, a case can be made for re-calibration on a monthly basis. Active Scale offers affordable calibration services from our trained professional technicians using traceable Measurement Canada Certified Mass Standards ranging from high precision Class II scales to Class III industrial scales, and Class IIIHD high-capacity scales.
In this blog post, we will discuss four accurate methods of vehicle scale calibration that are widely used in the industrial weigh scale industry.
Weight Calibration
Weight calibration is the fundamental method used to calibrate vehicle scales. It involves using certified test weights to determine the accuracy of the scale’s measurements. The process typically includes placing known weights on different sections of the weighbridge or load cells and comparing the scale’s readings to the applied weight. If any discrepancies are found, adjustments are made to align the scale with the known weights. Weight calibration should be performed periodically to account for any changes or wear in the weighing system.
Dual-Axis Load Cell Calibration
Vehicle scales typically employ multiple load cells strategically placed across the weighbridge. Dual-axis load cell calibration is a method that focuses on calibrating each load cell individually. By applying known weights to specific points on the weighbridge, the readings from each load cell can be compared to determine if they are within an acceptable range of accuracy. If variations are detected, adjustments are made to ensure consistency across all load cells. This method is crucial for maintaining the overall accuracy and reliability of the vehicle scale.
Corner Test Calibration
Corner test calibration is specifically designed to address potential weighing inconsistencies that may arise from uneven loading or weight distribution on the weighbridge. This method involves placing known weights on each corner of the weighbridge and comparing the readings obtained from each corner. Discrepancies between the corners can indicate potential issues with load cell performance or weighing platform alignment. Adjustments are then made to ensure uniform weighing across the entire weighbridge, regardless of load distribution.
Temperature Compensation
Temperature can significantly impact the accuracy of vehicle scales, particularly those employing strain gauge load cells or sensitive components. Temperature compensation is a calibration method that takes into account the effects of temperature variations on the scale’s performance. By using temperature sensors or compensating algorithms, the scale’s readings can be adjusted to account for temperature changes. This method helps maintain precise measurements, even in environments with fluctuating temperatures.
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Accurate calibration is essential for vehicle scales to ensure precise weighing in industrial operations. By implementing the four methods discussed in this blog post – weight calibration, dual-axis load cell calibration, corner test calibration, and temperature compensation – you can maintain the highest standards of accuracy and compliance with weight regulations. Regular calibration not only enhances operational efficiency and prevents overloading but also improves safety and customer satisfaction.
Investing in calibration processes and partnering with experienced calibration service providers, like Active Scale Manufacturing, is crucial for organizations in the industrial weigh scale industry to optimize their weighing operations. Contact our service division toll-free at 1-800-850-8770 to discuss your scale calibration needs and estimates of cost – we have over 20 technicians available to solve your weighing problems fast!
