In everyday life, you have to weigh something. When cooking, so as not to make a mistake in the accuracy of the recipe, with large preserves in the summer-autumn period of the workpieces and even when controlling your own weight. In stores, too, it is impossible to purchase anything without weighing. Even if the goods are sold in pieces, buyers strive to check the mass declared by the manufacturer. Here is such a widespread use found on table scales.
Device device
Depending on the model and purpose, the device may differ in its characteristics. The mechanical ones have a weighing bowl and a dial, the electronic ones - displays with high accuracy of determination.
The basis of weighing simple models of an electronic device is a spring, the oscillations of which are displayed on the screen of the device.
Dear ones, they differ in that there are two disks in the scale design, between which a specific capacitor is formed. Under the influence of gravity, the distance between them changes, from which its capacity decreases. An electronic scoreboard converts this pressure to weight and displays on the screen in the usual numbers for all.
There are models with a different principle of operation, in which a voltage sensor acts as part of the measuring element, an electric current passes through it. At the time of weighing an object or product, the device is able to change the resistance and power of the passing charge. After conversion to kilograms and grams, the result is displayed on the usual scoreboard. In such models there are no mechanical elements at all.
According to the method of supply, the operation of the table scale may vary. Some work on solar panels, others have galvanic cells, and others - power supplies.
Household products
According to the special characteristics of household tabletop scales, it is customary to distinguish several types:
- Kitchenware. They are used for weighing food products according to the recipe, they have a different name - culinary products.
- Universal scales. They have a flat platform, usually metal. Therefore, the product on them is measured in containers. For convenience, there is a special button that can subtract the mass of dishes to get the exact weight of only the product.
Scales for trade
They are also called "store products." Electronic table scales have great functionality. Their scoreboard is divided into several lines. Thanks to the improved interface, they allow you to calculate the cost of the product, taking into account the price per kilogram.
In addition to stores, such table scales are used in warehouses where the packaging of goods is provided, in canteens for measuring portions and larger retail outlets.
Thermal Label Scales
Such models are widely used in modern supermarkets and hypermarkets. In their design, the products have a “memory", which is updated every day. Features of the instructions for electronic table scales with the ability to print labels are that it is enough for the buyer to type the internal product code on the keyboard, which is written on the price tag.
The device is able to calculate the weight and the exact cost of the product. The printed label additionally indicates the exact name of the product, the expiration date and a bar code intended for registering goods at the checkout.
Above in the photo are table scales, often found in self-service stores.
Laboratory balance
The models have increased accuracy, designed to weigh small suspensions in the laboratories of research institutes and industrial enterprises. Classified on:
- Precision - with weighing accuracy up to 0.1 mg;
- Analytical - up to 1 g.
Equipped with many additional features and have various calibrations.
Medical scales
Bench scales are used in pediatrics to weigh infants. They are able to quickly and accurately determine the body weight of the child. They have a specific design that allows you to process the product with various sanitary preparations. Such devices are often tested and have a certificate of compliance, according to the legislation of the Russian Federation.
Advantages and disadvantages of electronic scales
Like any other apparatus, scales have their positive sides:
- High accuracy of measurements.
- Modern models are able to show the result in different units.
- They themselves go to the initial position, while they can maintain the previous weight.
- They have a high measurement limit.
- A wide selection of model mesh.
- Small dimensions.
- Easy to operate.
- With long inactivity, they are able to enter standby mode themselves, without consuming power.
Do not forget about the shortcomings:
- High price.
- Frequent risk of malfunctions.
- Expensive repair.
- Over time, power supplies require replacement.
Tips for choosing a home scale
Most experts claim that for household use, scales with a removable glass bowl are best suited. It is convenient to remove and wash, in addition, the material does not absorb unpleasant odors.
It is preferable if it is a compact model that does not take up much space in the kitchen, with additional functions for weighing products, with or without packaging.
If in the kitchen is a housewife who likes to preserve a large number of juices, salads and vegetables, then the product is better suited with a flat surface and a sufficient measurement limit so that it does not have to be weighed in several stages.
Before finally deciding on a choice, experts advise you to familiarize yourself with a sufficient number of offers, both in specialized city stores and in modern Internet resources. Often it is in the vastness of the World Wide Web that you can pick up a unique model that is not found in ordinary stores.