balance

balance

Product Information

  • Name : balance
  • SKU : BLT-67
  • Category : balances

A balance is a measuring instrument used in laboratories and quality inspection industries for precise weighing of object mass. Traditional mechanical balances rely on equal-arm lever and weights for balanced weighing, while the mainstream now is electronic analytical balances, which operate on the principle of electromagnetic force balance for reading. They come in various models with ranges from milligram-level微量 weighing to kilogram-level conventional weighing, offering a wide span of precision. Features include tare, counting, and unit conversion, with some models equipped with a draft shield to prevent airflow from affecting weighing accuracy. They are commonly used for pharmaceutical compounding, sample weighing, raw material proportioning, jewelry weighing, and quantitative sampling in physicochemical experiments.

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balance

Working Principle When powered on, the electronic balance generates an electromagnetic force through its internal sensor to support the load on the weighing pan. When a sample is placed, the gravitational force changes, and the electromagnetic force is synchronously fine-tuned to maintain balance. The sensor converts the force signal into an electrical signal, which is then processed by the mainboard and converted into a mass value displayed directly on the screen. Analytical balances equipped with a glass draft shield can isolate data fluctuations caused by air currents, enabling ultra-high precision weighing at 0.0001g or 0.00001g. Application Fields 1. Chemical laboratories: quantitative weighing of reagents and chemicals, preparation of standard samples 2. Food testing: sample weighing, before-and-after weight comparison for moisture content analysis 3. Pharmaceutical industry: micro-proportioning of active pharmaceutical ingredients and medicinal preparations 4. Jewelry and pawnbroking: precise weighing and valuation of precious metal jewelry