On April 29–30, 2025, an onsite calibration activity was carried out for the Multi Product Calibrator Transmille 4015 owned by PT Santinilestari Energi. The calibration took place at the company’s facility located in Pasuruan, East Java.

The calibration was conducted by a team of technicians from PT Terminal Elektronika Sekawan, an accredited and experienced calibration service provider. The process was performed in accordance with applicable procedures and standards to ensure the accuracy and reliability of the measuring instrument used in PT Santinilestari Energi's operations.

This activity is expected to ensure that the Multi Product Calibrator Transmille 4015 continues to function optimally and within its technical specifications, thereby supporting the quality and consistency of measurements in the company’s work processes.