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  • Electronic balances designed to weigh, with a high degree of precision, substances with a very small mass; the balances can typically register weights of between 5 and 20 grams with a readability and reproducibility of one microgram or better. These balances typically consist of an electronic unit that senses the deviation of the balance beam and applies a restoring electromagnetic force, processing and control circuits, and a digital display that shows the value of the balancing force calibrated in units of weight. Balances usually incorporate automatic calibration, temperature change compensation, and taring capability for easy subtraction of the mass of the container. Microanalytical balances with integral interface circuits to communicate with printers, computers, and data processing units are also available.
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