Calibration of testing equipment is an integral part of public service, based on the Regulation of the Director General of Land Transportation No. SK2405/AJ.402/DRDJ/2014 concerning Standard Operational Procedures for the Implementation of Motor Vehicle Equipment Calibration. The motorized vehicle testing equipment that must be calibrated includes CO/HC emission testers, smoke thickness testers, headlight testers, brake testers, weight testers, sound level testers, front wheel toe-in/side slip testers, glass darkness testers, and speedometer testers. The side slip tester plays a crucial role in assessing vehicle durability and comfort. Currently, the calibration of side slip testers is performed using manual methods. This approach can lead to suboptimal calibration accuracy and a longer execution time. Consequently, this research focuses on the design and construction of a new calibration tool specifically for the side slip tester. The development of a microcontroller-based side slip tester calibration tool provides a significant improvement over the manual method. This new tool offers several advantages, including easier operation, a reduced need for personnel, and enhanced time efficiency. The implementation of this calibration tool is expected to lead to a significant performance improvement in the calibration process of side slip testers.
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