How often should I calibrate a truck scale?

•    Most legal-for-trade applications require the scale to gain certification of compliance from local weights and measures authorities at certain intervals (annually, semi-annually, etc.).
•    Another factor that should be considered when determining how often to calibrate is how many trucks per day will be weighed on the scale. The demands of heavy traffic volumes often cause the scale's accuracy to drift outside of tolerance levels faster putting the business at risk of losing additional profits. If your vehicle scale experiences high volumes of trucks per day, you should consider increasing the frequency of calibration. 
•    And finally, environmental factors will affect the calibration of a truck scale. As temperatures fluctuate, the large-scale structure will expand and contract. These subtle changes will adversely impact the calibration of the scale. 

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