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Precision balances


In order to make it easier for you to make the right choice of KERN balance, we have included a quality code for each model, which is made up of two quality features and will give you technical data and pictograms in addition to the product features. This will help you to make the decision on the perfect balance for your application:

The stability quality feature
How quickly and sensitively weighing results are displayed?
This quality feature on the basis of the information on the housing material and total weight of the balance, the stability quality feature gives you an indication of the types of application for which the balance is particularly well-suited. Due to their low weight, materials such as plastic allows structures which are particularly advantageous for mobile applications.
The appeal of models which are used to process high-quality, heavy material, such as, for example, aluminium casting or steel, is their durability and robustness and the fact that they are less susceptible to vibrations. A high level of stability allows rapid, repeatable weighing results.
Categorisation in A, B, C, best value: C
The dosing level quality feature
comes from the values for reaction time, stabilisation time and behaviour during long-term weighing procedures. These parameters give information about how well-suited a model is for fine dosing, amongst other functions. In particular with these dosing procedures, the balance performs a balancing act between filtering out disruptive environmental influences, such as, for example, vibrations on the one hand, and the highest level of accuracy as well as rapid display when weighing goods right down to the smallest division [d] on the other hand. In addition this value is printed, whether drift effects influence the continuous measurement in long-term trials.
Categorisation into A, B, C, best value: C

Interesting facts about density determination

One of the main areas of application for laboratory balances is determining densities, i.e. determining the specific weight of liquids and solids. To do this you will need a highly accurate precision balance and a density set. It is particularly convenient if the balance can calculate and display the density right away. It has become apparent that by means of weighing when in the process of determining the density of liquids and solids according to the buoyancy method particularly accurate results can be obtained (Archimedes’ principle).

Density determination of liquids: by means of measuring the buoyancy with a glass plummet immersed in the liquid to be measured

Density determination of solid matter: the density is the ratio of weight [g] : Volume [cm3]. The weight is derived by weighing the sample in air. The volume is determined from the buoyancy A = weight loss in [g] of a sample, which is submerged in a liquid. The density D [g/cm3] of this liquid must be known. The volume [cm3] is a result of A : D.

Applications:
  • pre-packaged goods control, whenever a product is sold according to its volume [cm3]. This volume is calculated with weight [g] : density [g/cm3].
  • materials analysis
  • density of porous materials

Balances for density determination EMB-V, PLE-N, PLS/PLJ, PBS / PBJ, ABS-N / ABJ-NM

Help for choosing a precision balance: Quick-Finder