Centralization of Medical Gas Pressure Monitoring Based on ATMega328

Medical gas installation is one of the supporting services for the health facilities. However, a failure supply medical gas became a serious problem. It was caused by the gas pressure that was not properly controlled, so that the scale on the gas pressure regulator in the ward became inaccurate and difficult to read the medical gas pressure. Clear pressure readings and centralized monitoring are the essential thing to minimize a failure on the medical gas system, which is the aim of this study. The contribution of this research is to provide an innovation in medical equipment and medical gas monitoring in hospitals. This study uses an experimental method with testing in 2 different rooms, they are a medical gas pressure monitoring tool by displaying pressure information on seven segments and can be monitored centrally. By utilizing the pressure transducer PX2 and MPX5700 which are controlled by Atmega328, so that medical gas can be monitored properly. By using this medical gas pressure monitoring tool, the test was carried out at a medical gas pressure of 3 bars, 4 bars, and 5 bars, for medical vacuum at a pressure of 40 cmHg, 50 cmHg and 60 cmHg. From the process of making the tool and the tests, it can be concluded that the tool can work well in displaying the pressure on the seven segments display and the display on the computer. With the error that is still under tolerance, with a maximum error of 3% and a maximum error limit of 5%.