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All Journal Indonesian Journal of electronics, electromedical engineering, and medical informatics
Mohammad Rofi'i
Department of Electromedical Engineering, Poltekkes Kemenkes Surabaya
Computer Science & IT Control & Systems Engineering Engineering

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Waterbath Calibrator with Nine Channels Sensor Mohammad Rofi'i; Syafudin Syaifudin; Dyah Titisari; Bedjo Utomo
Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics Vol 1 No 1 (2019): August
Publisher : Department of electromedical engineering, Health Polytechnic of Surabaya, Ministry of Health Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (495.44 KB) | DOI: 10.35882/ijeeemi.v1i1.1

Abstract

Water bath is a laboratory equipment that contains water or special liquid that can maintain the temperature under certain conditions during the specified time interval. For this reason, calibration is needed so that the temperature in the chamber waterbath is stable or not. calibration is carried out by comparing measuring instruments and measuring materials to be calibrated to traceable standards that are traceable to national and / or international standards. Based on the results of the identification of the problems mentioned above, the author makes a waterbath calibrator entitled "Waterbath Calibrator (9 channel)" which is very practical, and easy to operate. .This calibration tool uses a K type thermocouple sensor and also the output is displayed to the character LCD to make it easier for users to retrieve data, the reason for choosing a thermocouple sensor is because the error rate is +/- 1,1C while the LM35 is +/- 1,4C. The thermocouple temperature sensor can detect the chamber temperature quite well where the biggest error is obtained with a comparator of 2%, and the lowest error is 0%.
Co-Authors Dyah Titisari Syaifudin Utomo, Bedjo