Measuring and detecting the level of liquids and solids with electrical devices. Single-point level devices, such as ball floats, diaphragms, and rotating paddles that activate electrical switches; continuous liquid level measurement with a float-actuated cable rotating a multiple-turn potentiometer; donut float containing magnets actuating follower magnet on cable; level detection with conductivity electrodes; and level detection with a vibrating paddle actuated by a solenoid.
Prerequisites - Working knowledge of electricity and familiarity with sight and float instruments (Course Number 33).

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Related Instruction:

Course Number 33 - Gage Glasses and Floats

Course Number 34 - Buoyancy Displacers

Course Number 35 - Differential Pressure

Course Number 94 - Electronic Devices