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VOLUME 1 Edisi 2 , Nopember 2016




Title

PERANCANGAN ALAT MAGNETIC STIRRER DENGAN PENGATURAN KECEPATAN PENGADUK DAN PENGATURAN WAKTU PENGADUKAN

Authors
Lalu Patria Irsyad , Yudianingsih , Sri Lestari
Minat Studi Teknik Elektromedis, Program Studi Teknik Elektro Universitas Respati Yogyakarta

Abstract

Magnetic stirrer is one of supporting laboratory equipment that used for mixing a sample so that the sample can be mixed into homogeneous. On its application in laboratory, the magnetic stirrer is commonly used to stirr the sample with speed range from 100 Rpm to 3000 Rpm. Generally, user will set the stirring speed and wait 10-60 minutes. The purpose of this study was to make a magnetic stirrer with stirring speed and time setting, so that the user can control the speed of the stirrer and timing as needed. In this syste, a magnetic stirrer rotated by DC motor and there was a rotated magnet is placed inside the container. Magnetic stirrer with stirrer speed setting and time setting can be perform sample stirring with stirrer speed up to 3000 Rpm and time setting for 60 minutes. At the time of the test using sample of mixture water with syrup, mix water with food colouring, mix water of soap with oil. All of three sample mixture can be mixed using magnetic stirrer tool became a homogenous mixture. Keywords—magnetic stirrer, speed control, timer, samples, mixture
Keywords

magnetic stirrer, speed control, timer, samples, mixture
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