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Definition: What is an analytical balance?

The analytical balance works with an extremely high precision at a resolution of 0.1 to 0.01 mg. Whether in pharmacies, in laboratories, in medicine or even in schools and universities – such a lab balance is indispensable in many areas.

Modern analytical balances work according to the principle of electromagnetic force compensation: a torque is generated by the dead weight of the material to be measured. The corresponding counter-torque is triggered with the aid of electricity.

In most cases, an electromagnetic system is used for this purpose – usually in the form of a coil in a permanent magnet. Any change in the coil current can be measured specifically and can be represented by the analytical balance as a weight value.

Difference from the precision balance and microbalance

The analytical balance is highly sensitive and is characterized by the extreme precision of measurements. The resolution is usually 0.1 mg, so it is possible to weigh out even very small amounts of substance. The microbalance, on the other hand, is even more accurate. The friendly team of experts at MedSolut.com will be happy to answer any questions you may have in this regard.

The minimum sample weight for analytical balances (d=0.0001) is 10 and 15 mg. In this regard, it should be noted that according to current guidelines, one hundred times the standard deviation is allowed.

For comparison:

Microbalances are capable of determining values in a range of up to 1 µg. A single hair with a length of ten centimeters weighs about 50 to 100 µg. This can only be determined with a microbalance.

Common functions of a modern analytical balance

Find on MedSolut.com the analytical balance that perfectly fits the needs of your institute, company or medical or educational institution.

The main functions of the analytical balance:

  • With a laboratory or analytical balance, you can precisely weigh small quantities of materials.
  • Depending on the model, different weighing ranges are available.
  • Moreover, the functionality in terms of individual readabilities speaks for the value of laboratory scales.
  • Modern balances are designed for weighing capacities from 1 to 200 g and readabilities from 0.1 mg to 0.01 mg. More sensitive balances can be found on Medsolut.com under the category microbalances.
  • Integrated data and method storage via USB or RS232 connectivity is often provided.
  • A draft shield to protect the weighing pan from temperature fluctuations and air movements is also usually part of the equipment.
  • You will also find analytical balances with alignment, overload and underload indicators.

Areas of application of an analytical balance

Analytical balances are an essential work tool in pharmacies, scientific institutes and facilities as well as in chemical and biological areas, but also in the physics industry. They can be used to precisely weigh chemicals and other substances, as well as samples and more.

In addition, dynamic weighing of liquids, insects and other unstable samples is possible with modern analytical balances. In addition, an analytical balance can be used to count parts, tablets or other components and determine the density of substances and materials.

Criteria for selecting a laboratory analytical balance

Depending on the measurement project, project and scale, you can choose between different analytical balances. We will be happy to show you the most important attributes that a laboratory analytical balance should have in your company or institute. Let our competence team advise you professionally.

The most important criteria of modern analytical balances for the laboratory:

Weighing range

Depending on the areas in which the analytical balance is to be used, you will find various models with corresponding weighing ranges on MedSolut.com. High-performance laboratory balances are characterized by weighing capacities from 1 to 200 g.

Readability

Depending on the respective area of application in your company, you will find analytical balances with readabilities from 0.1 mg to 0.01 mg in our online catalog. So-called micro-analytical balances are characterized by the fact that they can be used for weighing considerably smaller quantities – from as little as about 0.1 mg upwards.

Accuracy and resolution

Precise measurements are elementary in medical, pharmaceutical, biological or chemical fields. Therefore, opt for analytical balances with a high performance portfolio. Models with electromagnetic force compensation excel with their very high resolutions and can achieve weighing accuracies of +/- 0.1 mg, among other things.

Repeatability

Due to external influences, it is sometimes necessary to perform measurements several times in succession. The high-quality laboratory balances impress with their special repeatability, so that you can always generate precise measurement results. If you have any questions in this regard, we will be happy to help you.

Type of draft shield

Drafts or movements in the ambient air can lead to inaccuracies in the measurements to be performed. To prevent this, the first-class laboratory balances on MedSolut are equipped with special draft shields. Depending on the model, these are made of robust glass or plastic. The corresponding segments can be opened both mechanically and electrically.

Frequently asked questions about calibration, verification and adjustment

The precise calibration and adjustment of analytical balances is the basis for generating accurate measurement results. Find out everything you need to know about the perfect functionality of your analytical balance at MedSolut.com. The following questions and answers can also help you specifically in your search for the optimal product:

What is meant by “accuracy” of an analytical balance – and how can it be determined?

The weight of any balance is independent of its location. However, due to possible changes in temperature and ambient air, the measured values may vary. To prevent this, the exact setting of the analytical balance must be done individually and on site. The value of the deviation should not exceed +/- 1 mg.

Why does the analytical balance need to be calibrated?

In the course of time of use, the accuracy of an analytical balance may decrease. This is due to material wear, but also to external influences. Inaccurate readings can lead to high costs and incorrect formulations in a wide variety of applications. Regular checking is therefore indispensable.

How can an analytical balance be calibrated?

Calibration is performed by an approved or certified service technician on the basis of a standardized procedure and with the aid of calibration software. We will be happy to show you the detailed procedure.

What tolerances apply to the calibration of scales?

A distinction is made between legal tolerances, manufacturer tolerances and process tolerances. The former are defined by OIML R76 and determine the legal-for-trade conditions. In general, tolerances are an indication of the “good” or “bad” weighing precision of a balance.

 

Assortment of MedSolut.com – top manufacturers of analytical balances

In our wide range of products you will find a variety of analytical balances from renowned manufacturers. Let the great variety on our platform convince you. We will be glad to help you in your search for the optimal analytical balance.

Kern

The Kern company is one of the leading manufacturers of high-precision balances for laboratories and industry. The entire offer of this manufacturer shines with the excellent quality.

Phoenix Instrument

The manufacturer Phoenix Instrument has already been highly successful on the market for many years and offers a comprehensive product portfolio with a view to balances and laboratory supplies. Discover the best solutions from Phoenix Instrument for your company on MedSolut.com.

Shimadzu

As an internationally active manufacturer of first-class balances and laboratory supplies, the Shimadzu company established itself on the market years ago. We have the best analytical balances and more from Shimadzu ready for you in our range.

 

The ideal analytical balance for your laboratory or pharmacy – our experts will be happy to advise you!

Find the perfect analytical balance for your lab or pharmacy now on MedSolut.com. Our highly motivated team of specialists will be happy to assist you – you can reach us by phone at +49 30 209657900 or by e-mail at [email protected]. We look forward to meeting you.