DESIGN AND CONSTRUCTION OFF DIGITAL SYSTEM GAS PRESSURE MEASURING EQUIPMENT

Riksal Aminullah, Bambang Panji Asmara, Zainudin Bonok, Syahrir Abdusamad, Ulfatun Nadifa

Abstract


The increasing use of LPG gas in household and small industrial sectors demands an accurate, responsive, and real-time gas pressure measurement system to enhance operational safety. Limitations of conventional analog instruments in terms of accuracy, response time, and data recording highlight the need for digital-based solutions. This study aims to design and evaluate a gas pressure measurement device using an MQ-2 sensor and ESP32 microcontroller, addressing calibration methods, accuracy, and system performance compared to conventional tools. The research employs an experimental approach with a Design–Development–Deployment model, including system design, prototype development, sensor calibration, and performance testing through ADC data acquisition converted into kilopascal (kPa). The results indicate that the system can measure gas pressure in real-time with fast response and stable readings after calibration, showing improved efficiency over analog devices. This study contributes to the advancement of digital instrumentation systems that are practical, accurate, and have strong potential for further development into IoT-based monitoring systems.

Keywords


gas pressure; MQ-2 sensor; ESP32; digital system; calibration

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