Libra: the device type and characteristics, how to choose, manufacturers

The device weights

Scales designed to measure the mass of freight, goods, products, people and animals. Systems can be automatic, semi-automatic or mechanical. According to the principle of the measuring units are divided into three categories:

• Hydraulic scales. Algorithm hydraulic mechanisms of action is based on the cylinder piston or membrane. Pressure from the mass transferred by the cylinder to the fluid which is inside the piston or diaphragm.

The load of the physical volume recorded manometer.

• beam balance. The design of the mechanism consists of several arms, interconnected or shackles steel prisms. Gravitational balancing works on the principle of the beam. Linkages are divided into square and prismatic.
• Strain gauge scale. Strain working scales based sensors, internal resistor changing resistance of the strain.

The principle of operation of portable and stationary measuring mechanisms based on a balancing moment generated when the mass pressure.

When you need to measure the bulk load of a large volume, the special electric truck with a forklift is used. When the pressure force is transmitted to the prism and levers.

The electronic scales balancing is automatic. In such a mechanism, there is no linkage. The design of electronic mechanisms arranged in such a manner that the weighed value is converted into a current or voltage.

Such units may be connected to other measuring and computing devices.

Built-in microprocessor provides a high level of automation, and provides the ability to extend the functionality of the measuring apparatus.

Types and characteristics of the scales

Scales are classified according to their intended use on the species:

• Laboratory. The main laboratory parameter measuring unit - is accurate. Precision are discrete from one milligram up to one gram, analytical - not more than 0.1 milligram.

There brand devices with additional options. These include dynamic weighing, which involves the measurement of animal or non-static objects. Hydrostatic weighing involves determining the mass of liquids.

Laboratory instruments are also divided by type of calibration device with automatic calibration, internal weights and external weight.

• Weighing Scales. The unit with the electronic mechanism is a compact mechanism to measure small loads. These devices include checkweighing scales, packaging and a la carte.

The latter are used for the simple measurement of weight that does not require high accuracy, where there is no need additional functionality.

• trade. They are used to measure the mass of the goods, for packing, for batch weighing, and then calculating the amount based on the price per unit. This model provides the display, located at the front or on the unit.

• Counting. This model has three panels with displays that show additional information about the measured samples.

In the first display indicates the total weight, the second visible component of one sample, and the third number of stamped samples.

The electronic unit is used to measure a variety of goods. Such models typically have additional features:

• water resistance to a high humidity;
• corrugated surface platform that allows you to measure the mass of unstable loads; weighing the possibility of a large-sized cargo;
• device with an additional power supply unit, which measures weight while away from AC power.
• Medical. This model of the device is to be used for medical purposes, namely for measuring and monitoring the body weight of the patient.

Baby measuring apparatuses are the cradle in which the child is placed, and the display on the main panel shows the result.

• Crane. These balances are classified as storage, they are used for weighing loads up to 50 tons. Construction crane scales very sturdy, consists of a metal housing with display indicators and powerful hook.
• platform. Structurally, this model consists of a platform, the indicator is set either in the wall or on the counter.

• industry. This model is used to measure the mass of goods of any size and volume, and solves a lot of problems. Two groups of these devices: electronic and mechanical.

Currently, all companies use only the electronic version of the scale, the mechanical devices are considered to be already obsolete, because of the reliability and price inferior to modern.

• Packing. Such devices are classified as simple, they used the device for weighing small masses of goods, not exceeding 35 kg.
• electronic with check printing. None of the modern supermarket is not without such devices. Printing labels on the goods in the automatic mode allows to improve the quality of customer service.

The balance is not only measured by the mass production and produce labels with barcode indication and other information, but also to keep records, stored in the memory of all sorts of options.

• Pallet. Such scales are designed for weighing goods on pallets.

The design allows the pallet measuring device with four sensors to determine the weight of the load and output the data to the display, located on the designated terminal.

These devices are used in distribution centers, in industrial halls, in customs, in trade and logistics centers.

• Car weights. This category scales designed to measure the weight of the car - both laden and unladen. Weighing methods are different, it all depends on the application and other design parameters of the device.
• Luggage scales. The unit for measuring the weight of the luggage is the simplest kind of balance. There are mechanical and electronic model.

The mechanism is simple, compact device that easily fits in the hand, the cargo is hung on a hook, and the display shows the result. Pocket scales easy to take along.

• Kitchen scales. Apparatus for measuring the mass of products must be present in the kitchen housewife who observes the accuracy in the proportions and amounts of ingredients to prepare delicious dishes.

Classification of weight measurement devices by type of installation:

• stationary
• False
• mobile
• Floor
• Desktop
• recessed

According accuracy class of measuring devices are divided into three types:

• high accuracy class,
• average;
• normal.

By type of lifting mechanism, a group:

• bunker
• rail
• platform
• conveyor
• hook
• bucket

Additional options

Some models weighing instruments have additional options:

• Tarokompensatsiya. This option allows you to measure the weight excluding packaging. Before weighing must be put on the scales empty container, then reset the result, and then weigh the cargo together with tare.

In the electronic and Mechanical kitchen scales this option helps to accurately identify any bulk and liquid products.

• Successive weighing. Serial weighing option is to find out the total number of kilograms weighed alternately products. When resetting the intermediate results remain in memory.
• Kitchen scales with volume measurementfluids. This feature provides a measure of the liquid in milliliters.
• measurement of growth. Some medical instrumentation additionally attached stadiometer.

• voice messaging. This option is uncommon. The unit reports its actions beeps and voice.
• Clock. Electronic devices are often equipped with built-in clock.
• Calculation of body mass index. This option is set in specialized scales. To see the index, you must enter the data on the growth and weigh in, the unit will automatically display the result.

For people losing weight machine with such a function will be indispensable. Daily monitoring of not only weight, but also mass index will achieve the goal quickly and the result will be more effective.

• calorie Calculator. Kitchen scales with counting calories equipped with a special counter by several tens of thousands and even products (value list depends on the model).

After selecting a product from the list, and weighing it, you will see the caloric content on the display. These units are ideal for people who follow the calorie intake. Good decision floor scales for the whole family.

• Synchronization with PC / phone. This option allows you to transfer data from the scales to a computer or phone.
• automatic shutoff. When not in use, it automatically switches off.

diagnostic

Diagnostic measurements in electronic scales can determine physical characteristics, which leads to effective weight loss. All received data is stored in memory.

Diagnostic scales measuring operate such that signals pass through the human body when he stands on the surface of the measuring unit. The electrical signals are perfectly safe for health, because they are very weak.

The device is based on the difference signal from resistance makes its conclusions on the tissues in the body.

Parameters measured diagnostic scale:

• Body mass
• Fat mass
• Muscle mass
• bone mass
• visceral fat
• Water
• calorific value
• internal age
• Dynamics of physical development

Each indicator has certain rules. That the results correspond to reality, it is necessary to produce weighed daily at the same time, three hours after the meal. It is important to get up on the instrument panel with bare feet, was to direct contact.

Kitchen

The kitchen scales use two types of containers: either a platform or a bowl. The platform can be measured by anything, even long products. With option tarokompensatsii measurement can be carried out in the additional tank. AT kitchen scale with bowl weigh in bulk and liquid products.

Bowls and platforms kitchen scales may be made of glass, wood, steel or a food grade plastic:

• The plastic does not absorb odors, durable, does not have an odor.
• Steel does not rust, but soda and vinegar in such containers should be avoided.
• Glass is the best one, considered durable, resistant to acids.
• Wood retains the taste of food, but the material is short-lived.

Maximum load

Limit load, which is able to withstand the meter is set for each category of weights individually. AT electronic kitchen scales is 2 kilograms, and industrial crane units assume the workload and 50 tons. there are models kitchen scales with a load of 5 kg.

Benefits

Advantages of mechanical measuring devices:

• The mechanism is simple to implement.
• Long service life.
• Structural strength.
• Lower price in comparison with the electronic models.
• There are no batteries that need regular replacement.
• No special storage requirements.

Advantages of electronic measuring instruments:

• Additional options (memory, the ability to calculate the body mass index, and other).
• Measurement accuracy at the highest level.
• No bulky items, small footprint compared to mechanical units.
• Automatically when you disconnect the product is set to zero.
• Fashionable design.
• High threshold limit load.
• Automatic opening and closing when touching the surface.
• Quite a large range offered by manufacturers.

disadvantages

Disadvantages of mechanical measuring devices:

• In the production of the measuring mechanism is used modern technologies.
• The measurement accuracy is not at the highest level.
• There are no extras.

Disadvantages of electric measuring devices:

• Batteries from time to time need to change.
• The high cost of the device, and the more it additional options, the higher the price.
• The device requires careful handling and storage, there is a risk of damage to electronic components.
• The complexity of the repairs when breakdowns.

How to choose the scales

When you select a device for home use should follow certain recommendations:

• First, it is important to check which units the device works. Not all devices determine the mass in kilograms, imported models are the measuring system in pounds. You may need it pounds.
• Next, to verify the accuracy of the device measurements. Right in the store, make sure that the stack of pound of sugar weighs exactly one kilogram. For reconciliation conduct a test on several models. Buy the device with minimal error.
• The unit with the knurled surface is much more convenient, weighed load will not slip. Also look to make it non-slip bottom, possible rubber pads at the bottom.

• Buying a unit bath, sauna or swimming pool, take a model with a waterproof casing. Electronic models without this protection very quickly come down.
• In selecting the material from which the floor embodiments, give preference to the metal. Buying kitchen weighing instruments, choose a device with a glass bowl.
• Mechanical scales You can check the accuracy on the spot. Hand press to the surface and rapidly release the hand. Qualitatively, the device immediately returns arrow back to the digit zero.
• If you see bad, buy a device with large numbers. Also there are options to display separately derived.

what better

What better measuring units - electronic or mechanical? No definite answer, because for each type has its own customer.

One person enough to know your body weight to within one kilo, the other is important to know about minimal fluctuations in weight and to control other parameters, such as body mass index, the amount of water, fat mass bones.

Before buying it is recommended to evaluate all the advantages and disadvantages presented by types of weighing devices, and you can see for yourself what is best for you.

How to use

Use the measuring units must be in accordance with the instructions provided with the purchase.

• It is important initially to properly install the device on a flat surface so that readings were more accurate. To adjust the alignment and use builder's level.

There are models in which the level is built, you only need to tweak the adjustable feet. air bubble should be in the center of the control ring.

• The mechanism should be stable, must not wobble during use. When properly installed, the measuring unit arrow indicates zero on the dial.

Also adjust the frequency of oscillation of the arrow is made in the dial of mechanical measuring devices, this damper is rotated in a certain direction.

• Indications from the mechanical device is removed, in a face to the right dial. It is forbidden to produce cutting and packaging of the products on the platform.

Precautionary measures:

• Do not use the machine for other purposes.
• Handle with care, since the measuring mechanism - a precision instrument.
• Do not use in hazardous areas with inflammable liquids and gases.
• Do not use the device within range of the electromagnetic or electrostatic waves, as the readings will be incorrect.
• You can not disassemble the device.

Guarantee

The warranty period is usually several years, during this period it is necessary to keep the warranty card. The coupon is prescribed date of purchase, product brand and be sure to put down printing shop (note that the ticket is invalid without the seal).

If during the term of service there is any failure of the device which have occurred through the fault of the manufacturer, the repair is carried out by the seller. It is important that the unit was operated in accordance with the conditions specified in the instructions.

The guarantee does not apply in the following cases:

• Defects arose in the case of force majeure (power surges, traffic accident, fire, or natural disasters).
• Operating conditions specified in the manual are violated.
• If the buyer is carried out to repair the unit by yourself or with the help of third parties.
• Failure to comply with safety standards.
• Changes to product design on the part of the buyer.

• Failures due to improper transportation of goods by the buyer. If the delivery is made by a manufacturer or dealer, the warranty is valid.
• Mechanical damage to the body or the machine's platform.
• Use of the equipment at high humidity (over 90%) and elevated temperature more than 25 degrees.
• Penetration of liquids, dust, insects or other foreign objects in the product mechanism.
• When damage to the equipment due to the use of substandard or exhaust his term details.

Also, the warranty does not apply to components and separate structural elements.

malfunctions

In operation the measuring unit can periodically malfunction. Vozniknuvshey fix the problem you can manually:

• If the display is blank, the machine may not be connected to the grid. Either the batteries are out of order, in which case they must be replaced with working batteries.
• If the weighing result is incorrect, you may not calibrate or reset.
• For issues with the power cord, you can replace the mains plugs, or simply to clean the contacts.

Spare parts for a particular model purchased in specialty stores that focus on the sale of such units.

Manufacturers offer additional accessories for measuring devices: buttons, indicators, legs for keyboard stickers, transformers, shock absorbers for the platform, the platform itself, sensors, blocks food Surge Protectors.

manufacturers of weights

Bosch offers its customers about a dozen different models of floor measuring devices. On the official website contains all the possible options. The design features a stylish, slim body.

In addition to the units for weighing the company sells all kinds of household appliances: washing machine, Food processors, washing vacuum cleaners, dishwashers and etc. The manufacturer gives the ten-year warranty on their products.

Maxwell is a large selection of measurement equipment: electronic and mechanical household scalesAnd kitchen devices. site of the company offers to buy whichever version.

The company is engaged in manufacturing of any appliances: kitchen, cleaning the house, health and beauty.

The company sells a variety of options Polaris measuring devices: desktop and wall-mounted kitchen scaleAs well as the floor for weighing people. The site is located all the necessary information for this product.

The company is for sale as HVAC equipment, water heaters, household appliances, heating radiators and utensils. Modern design and develop a unique approach to customers are an integral part of the company.

Scarlett company offers equipment for the home and kitchen, health and beauty devices. The site includes mechanical and electronic measuring devices model.

Model of this company are distinguished by their bright design, a collection of weights with Disney comics.

Supra offers a large selection of kitchen measuring devices and outdoor units. The official site of the company will allow to get acquainted with the whole range of products.

Tefal company sells home appliances, including measurement units. Presented by models on the site look aesthetically pleasing and elegant. The warranty on the products provided by the manufacturer.