Design and Development of a Portable 8-Channel Water Bath Calibrator with Data Logging Capability

Abstract

The purpose of this research is to create an 8 Channel Portable Water Bath Calibrator equipped with data storage to make it easier for technicians to perform calibrations. The method used is in the form of research and development with a data collection technique in the form of comparing the temperature values read between the writing tool and the comparison tool by PT. Tera Accuracy Partners at the points that have been standardized by the calibration company, namely at temperatures of 40ºC, 60ºC, and 80ºC taken in ten measurements. The results obtained from the measurements that have been carried out are that the largest deviation of temperature measurement between the water bath calibrator and the comparator is located at the temperature measurement of 40°C with a deviation value of 0.34°C. Meanwhile, the smallest deviation value of temperature measurement between the calibrator and the comparator is located at the temperature measurement of 60°C and 80°C, which is 0.02°C. The largest error percentage is in the measurement of 40°C with a value of 0.92% on T2 and the smallest percentage of measurement error is in the measurement of 80°C with a value of 0.14% on T5 and the accuracy of this tool is 99.89%. In addition, the data storage system on the 8-channel water bath calibrator can be read on a PC in CSV file format. Thus, the system created by the author can be useful in the field of calibration, especially in water bath tools that utilize 8 sensors for temperature readings with a data storage system