Analytical balances

Analytical balances are a special type of precision balance used in the chemical, pharmaceutical and other fields where the highest accuracy in mass determination is required. This type of scale can typically measure masses in the sub-milligram range (e.g. 0.1 milligram).

Analytical balances have special properties such as high sensitivity, very low tolerances and fast stabilization of gravimetric measurements. Additionally, a draft shield or cover is often installed to protect the scale from air movement and other elements that can affect its weight.

Analytical balances are commonly used in laboratories that require the highest accuracy and precision when measuring mass, such as: B. in pharmaceutical production or in the research and development of new compounds.

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Analytical balances

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How is an analytical balance constructed?

Analytical balances have improved resolution and accuracy compared to traditional balances.

The basic components of a typical analytical balance are:

Weighing platform
The surface on which the object to be weighed is placed. Weighing platforms are typically made of stainless steel or other materials that are durable and easy to clean.

Load cell
The load cell is the heart of every analytical balance. The load on the weighing platform is converted into electronic signals and processed by the weighing electronics. A load cell consists of a strain gauge bridge and a metal body that deforms when a weight is placed on the weighing platform.

Weighing electronics
The weighing electronics receive the signals from the load cells and convert them into a weight display. It is usually equipped with a display that shows the weight of the object in grams or some other unit.

Adjustment and Calibration Mechanisms
Analytical balances typically have adjustment and calibration mechanisms to ensure the balance is measuring properly. works and gives accurate measurements. Calibrating the scale means setting the zero point, and calibrating the scale means checking the accuracy of the scale with weights of known values.

Housing
The housing protects the inner workings of the scale from dust, moisture and other external influences that affect the accuracy can affect the measurement. The housings are made of plastic or metal and have a door or cover for easy access to the weighing platform.