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Chapter 04E - Level Sensors - LEVEL SENSOR Level...

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LEVEL SENSOR Level measurement is important because by using the correct techniques, it can benefits in terms of economic, product’s lit i t’ d k f t quality, equipment’s and worker’s safety and reduce losses. There are 2 types of level measurement k di d i f i l known as direct and inferential measurement. Direct measurement is easy, simple and is used for the purpose of local indication. Inferential measurement is used when remote reading is considered necessary. Dr. Abdirahman CHAPTER 4 Page 75 of 111
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Dr. Abdirahman CHAPTER 4 Page 76 of 111
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Examples of Direct Measurement 1 GAUGING GLASS 1. Transparent glass tube which is connected to a vessel and the values can be read directly. Cheap and easy to install. For visible liquid. No signal transmission No signal transmission. 2. GAUGING RODE Rode that had been calibrated is put into a vessel. Easy to use. Dr. Abdirahman CHAPTER 4 Page 77 of 111 Can be used for liquid or solid medium.
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Level Gauge and Gauging Rod Method Dr. Abdirahman CHAPTER 4 Page 78 of 111
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Typical Application of Glass Level Gauges Dr. Abdirahman CHAPTER 4 Page 79 of 111
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Examples of Screen Measurement 1. BUYONCY TYPE SENSOR Float of hollow metal or plastic ball is used. When fluid increases, the float will rise and th t i di t moves the meter’s indicator.
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