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How To Choose a Precision Balance

April 09, 2021

How To Choose a Precision Balance

The precision balance is a very weighing scale with a readability of 0.1g, 0.01g or 0.001g.

Electronic balance usually has a small board size to minimize any error caused by air flow but usually there will be no draft shield like the analytical balance, but if you need to use the balance in a well-ventilated area there are some models that can have a ventilation with the readability of 0.001 g.

There are many things to consider when choosing an electronic balance. If you are not careful, you may compromise on some important things and get some things that may not be necessary. The following guide contains some useful information that can help you make choices and make sure that what you buy has what you want, and does not exceed your needs.

Things need to be considered

All the areas covered below will affect the suitability of electronic balances for your application, and affect a key determinant...price

Choosing an electronic balance that includes the functions you need but does not exceed your budget is easier than it sounds, because there is a good balance range available and we choose electronic balance to provide the best value for money.


The first thing to consider is the capacity of the balance. How much do you need it to weigh? If your weight is only 100 grams, then there is no need to buy a 300-gram balance unless you may need more capacity for another application in the future. You need to make sure you have enough capacity to weigh the product plus any container you use on the balance

Split size or resolution

Secondly, select the increment size of the electronic balance. The increment size is also called readability, resolution, or split size. This is the smallest unit that the balance will display, that is, an increment of 0.1g means that the display on the balance will increase by 0.1g each time.

Please note that the increment size and accuracy are not the same, you need to check the data table to find the accuracy (maximum merge error), but it is usually in the range of +/- 2


No measuring equipment is 100% accurate. Generally, when new and used in a stable environment, the accuracy of the weighing instrument is approximately +/- 2 times the division size over the entire weighing range. If you need a precision of +/- 0.1 g, a 1 g increment size balance will not be able to provide this tolerance and although a balance sector size of 0.1 g will give you a suitable reading, if you take into account the maximum error or balance of a balance with a 0.01 g resolution (readability) is required.

The smaller the increment size, the closer to the weight you want, although a smaller increment size will also increase the price.

The accuracy of the electronic balance is the difference between the applied weight and the displayed weight, and most manufacturers quote the accuracy in the product data sheet.

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