Scale device

Weighing device

Table dial scales

Bench scale tensometric

Electronic table scales VNEM-15 are designed to measure the operational accounting of the mass of goods in trade and industry.

Have the necessary set of custom functions:

Remembering the current weight of the goods;

Accumulation and display of the sum of the weight of the weighed load on the indicator;

Two serial communication channels, which makes it possible to use them in packing areas, in warehouses, when receiving and shipping goods, as part of automated trade and industrial systems.

Main technical characteristics of the scales:

The largest limit of weighing: 15 kg.

The smallest weighing limit is 10 g.

16.commercial electronic scales. Electronic commercial scales with autonomous power supply

Advantages of electric scales: -high speed of weighing, -work with weight and piece goods, -easy operation, -bright 2-sided indication, -modern design, -multi-functionality.

Scales trade. With autonomous power supply For trade where there is no AC mains voltage.

Weight scale with platform

Scales that are used in warehouses for weighing large masses, scale and weight

Commodity scale scales

Scales for vzv. goods in which there is a scale division (scale).

Commercial dial scales. Automobile and wagon scales.

Weighing scales For weighing. Heavy and oversized cargo

Automobile Scales are mainly used in warehouses for weighing loads together with a vehicle. Scales are produced: scale, dial, digital. Weighing limits: 10,15,30,60,100,150 tons The weights consist of a weighing device, an indicating device and a registration panel.

Wagon scales are used for weighing goods in wagons at railway stations and at large wholesale enterprises. production of car weights: scale, dial, discrete-digital.

Measures of length.

When selling measured goods (fabrics, tulle, ribbons, carpets, paths), rigid wooden and metal meters are used. meters manufactured. In the form of a rectangular strip of hardwood, the ends of a meter are reinforced with metal at the end, a scale with divisions is applied on both sides. The price of one division is 0.5 cm. the scale must have clear divisions and numbers

Volume measures

The volume measures are presented in the form of cups and beakers. For manual dispensing of liquid goods (draft milk, kerosene, gasoline), measure mugs are used. It is a cylinder with an arched or straight handle with a hook for hanging on the edge of the container. For dispensing milk, mugs are made of food grade aluminum, for vacation of kerosene, gasoline from tinned steel. Capacity 0.25; 0.5; 1 and 2 liters. The circle must bear the designation of their capacity, the brand of the manufacturer, the verification mark.

When dispensing syrup, cognacs, wine and vodka products, use beakers (glass cylindrical or conical glasses with a capacity of 0.1 or 0.2 liters) on the beaker. There are circular marks on the beaker. The beaker is filled to the mark indicating the corresponding .volume.

Setting the weights at the workplace.

Weighing rules on desktop dial scales.

They are intended for weighing goods when directly selling them to customers or for preliminary packaging. The maximum weighing limit is 3 kg (RN-3Ts13) and 10 kg. (RC-10Ts13). When weighing goods within the scale, weights are not required. The scales are allowed to work in temperate climates at temperatures from -20 to +45 and humidity not more than 80%.

The balance is installed on a solid, stable, horizontal base, not subject to various shocks and vibrations .. at a distance of 15-20 cm from the edge.

Install the balance horizontally using the ventilation feet, and check the horizontal position of the installation by the liquid level: the air bubble must be in the center of the level ampoule.

The hand should be at the zero division of the dial. It is forbidden to set the balance arrow to zero division with the help of the screw feet, because The scales will give incorrect readings. The number of oscillations of the arrows is adjusted using an oil damper. The arrow should make 3-4 oscillations.

Requirements for cash register equipment.

A number of technical and commercial and operational requirements are imposed on the cash register equipment.

The technical requirements include: high performance; reliability in work; compact design (weight, dimensions); insignificant weight.

Commercial and operational requirements are: mechanization and automation of cash and settlement operations; compliance of the design of the machine with the nature of the trading process; simplicity of design, providing ease of use, maintenance and repair; the ability to use for studying customer demand and obtaining commercial information

Obligations of the administrator

1) Organization and management of the effective work of store personnel.

2) Performing, if necessary, the duties of any employee of the store.

3) Monitoring the work of all store personnel.

4) Budgeting the store. Control and optimization of the expenditure side of the store budget.

5) Interaction and solution of current issues with landlords.

6) Registration and timely extension of permits and documents necessary for the operation of the store in fiscal and administrative bodies.

7) Resolving cash collection issues.

8) Maintaining store records, drawing up and sending export files of real transactions, reporting and documentation in accordance with the established reporting procedure.

9) Ensuring the established operating hours of the store.

10) Timely preparation of documents for payroll calculation. Work schedules and submissions for bonuses and penalties are handed over to the HR department.

11) Control of the uninterrupted operation of the existing commercial equipment and software, organization of troubleshooting.

37. The cashier is prohibited from:

Work without a control tape, except for those KKM, the design of which provides for an electronic control journal (control tape buffer); allow unauthorized persons to enter the cash register to the cash register;

Leave the cash register without notifying the administration, without turning off the cash register

independently make changes to the operation of the POS;

The cashier is also prohibited from having in the cash register personal money and money not accounted for by the cash register, except for the money issued before starting work for exchange.

Remove the cash register without the permission of the director (senior cashier).

Make an unauthorized exchange of rubles for the settlement tickets of the National Bank of the Republic of Belarus.

Scale device

Weighing device

Currently, the trade uses table dial scales, platform scale-weight, scale and dial, electronic. They have the following devices: load receptor, weight and force measuring, indicating, vibration damper, calibration device, level. There are two calibration weights on the screw shaft of the rocker arm. Accurate taring is done by moving these weights along the thread.

table dial scales

Appointment. For weighing goods weighing 100-10,000 g. The weighing mechanism is mounted on the body and closed from above by a metal casing with double-sided glass windows. The main part of the scales is a double equal-arm lever (rocker). The casing covers the main part of the balance - a double equal-arm lever. At the ends of the lever there are load-receiving prisms, on which the transmission levers are supported (with a weight platform, a commodity platform). Kettlebell and load arms are held for stability from above by parallel rods (strings) hinged to the body of the scale. The platform load arm is connected by a rod to a quadrant on which two arrows are attached. The quadrant is an unequal arm that rotates freely within a right angle. When a product is placed on the platform, the force is transferred to the quadrant through a lever and a rod and it rotates until equilibrium is achieved. The stopped hands show the weight of the goods on the dial scale.

To install the balance in a horizontal position, use screw feet with lock nuts. Level 75 is used to check the horizontal position of the balance. The level - an alcohol capsule with an air bubble - is located on the bed. When carrying and transporting the balance, the linkage is locked with a locking screw. On the dial of the scale there is a scale with divisions, the minimum and maximum limits, the division price, the type of scale, the name of the manufacturer, the trademark, the serial number, the standard number and the year of manufacture are indicated. A seal with a verification mark is installed on the casing, which is closed from above with a metal (aluminum) cap.

A set of weights is attached to the RN-10Ts13 scales: 1 weight-1kg, 2-2kg, 1-5kg. For each scale and rig there is a passport indicating the type of scales, serial number, load capacity, number and nominal set. weights.

Load receptor - designed to accommodate the weighed load. It is carried out in the form of platforms, cups, platforms. Weighing and force measuring device - lever system. Pointing device - scale, dial, scoreboard, indicator. The vibration damper serves to increase the stability of the balance and therefore to speed up the weighing process. They are made in the form of stops, as well as liquid vibration dampers (dampers).

The calibration device is used to balance unloaded scales. In the table dial scales, under the platforms, there are chambers into which the calibration weight (small metal objects) is placed. In the platform scales, on the weight holder there is a calibration chamber with a cover for adjusting the scales. For fine adjustment

In the modern world, scales are very popular for various uses, as they help people to accurately determine their weight. There are several types of such devices, each of which has its own principle of operation. Dial scales have been popular for a long time. This is a very important device, which is used mainly in trade and in warehouses for weighing food and other various goods.

Table dial scales

Such scales are very convenient when selling a wide variety of goods. When food is placed on them, you need to follow the scale. If it is within the limits, then in this case the weights are not required, and they quickly come to their original position. A huge plus is that there is a double-sided dial, allowing both buyers and traders to see the weight of the goods.

Varieties

Dial scales are different and are used for different types of goods. They can be either with a sector or with a circular scale. The dial is mainly used for weighing food, often for vegetables and fruits in shops or in the market.

Scales of the VNTs-10 type are used for weighing a small container. The largest weight for weighing is 10 kg.

Dial Scale Characteristics

The scale is a weighing system with two platforms: a small one for weights and a large one for goods. The main component of the lever table dial scales is an equal-arm lever called a rocker arm. It consists of two uniform stripes. In the middle of this lever there are 2 support prisms, and at its ends there are load-receiving prisms on which the weight lever rests on one side and the load lever on the other.

The load arm is integrated with the quadrant. It acts as an articulated arm and supports the support prism and the cushion, which is inserted into the bracket of the scale housing and can rotate within a right angle.

It has a counterweight and tare stabilizer fixed to it and is accompanied by two accompanying arrows. The tare stabilizer is a nut that moves along a screw rod. It is intended to set exactly 2 arrows to zero after the balance has been released from repair or production.

There is a calibration room under the weight platform. There are scraps of metal that are needed to find the balance in the equilibrium position. The vibration damper is located under the platform and consists of a cylinder, which in turn is attached to the beginning of the scale with two bolts. There is also a piston with two clearances, a rod, a spring, a cap, a cover, and a knurled nut. The stem is attached to the load arm. Oil is poured into the vibration damper cylinder itself up to the end of the annular ledge.

If the damper adjustment is correct, the hands can make several oscillations when weighing in different directions. In order to set the mechanical dial scales horizontally, a liquid level is required. When the air bubble is in the middle of the ring, they are set horizontally.

Scales RN-ZTs13U

The scales without the use of weights include dial scales RN-ZTs13U. They are needed in order to weigh goods weighing up to 3 kg. The scales have a tare compensator with a tare compensation range from 0 to 400 g.

The structure includes a body, where the main lever is fixed. The weight lifting arm rests on the end of the main arm while at the top it connects to a string that keeps it from flipping over.

Scales RN-10Ts13U

How are they characterized? Dial scales RN-10Ts13U are intended for use in trade for weighing various goods. They have the largest weighing limit - 2, 3 and 10 kg. When weighing within the scale, weights are not required, since they very quickly come to balance, and thanks to the double-sided dial, both the seller and the buyer can see the weighing result.

Weighing rules

Basic weighing conditions:

• If the product is lightweight and is within the scale, then the use of weights is impractical.
• The use of weights becomes a necessary process if the product is heavier and significantly exceeds the scale value. The weights are placed in the place for the weights. The weight of the item is calculated by adding the entire weight of the weights to the scale readings.
• When weighing a product, use fewer weights.
• Weight can only be determined by pure weight.
• When selling a product, you must first weigh the tare weight and only then the product itself, so that you can determine the net weight.
• On the platform of the scales, you must not put the goods and even more so cut anything, as you can spoil the scales.
• Do not place any objects under the feet of the balance.
• You cannot weigh the goods on scales that are not protected from wind, snowfall and other bad weather.
• It is categorically impossible to tie weights to scales to increase weight.
• Weights can only be used for weighing. In no case should they be used for other purposes.
• It is also prohibited to weigh the goods on the scales below the norm.

Safety rules

Be sure to read the safety rules:

• The balance should only be installed on a level surface. This is very important, and it is desirable that they are at a distance of about 14-21 cm from the edge of the counter;
• The twisted legs should be located at a height of no more than four centimeters;
• Weights can be located to the left of the scales.

Balance verification

Before making a verification, you must first understand if the scales are in good working order. They should have reinforced scales and the numbers on the dial should be clearly visible. The hands should be at the same level and stop after 3-4 oscillations. They should be installed only in level.

It is customary to check the sensitivity of the level by placing an iron plate under the legs. The plate thickness should be about 1 mm.

Stability can be verified as follows. The arrow should slowly return to zero. In no case should there be spaces between the arrow and the beginning of the scale. The consistency must be verified when the state of the balance is unloaded. It is necessary to place such a weight on the platform for the goods so that the arrow can remain at zero. Sensitivity is also verified in the same way, but a weight must be added to this special weight, and the main thing is that this weight should be equal to a smaller division of the scale. Ideally, the needle should only deviate 1 division.

The accuracy of the dial balance is determined by placing weights of 500 grams or 1 kg. The balance must then display the correct weight.

Breaking

The dial scales (we discussed the device in the article), unfortunately, break down often. They may not work at all, or they may work, but not quite correctly, that is, it is incorrect to measure weight. At some point, the scales will simply stop showing the exact weight, and this is very inconvenient when selling food and other goods.

Such actions include blows on the platform for the goods and on the very body of the scales. You can also damage the balance if it falls. The scale has a very sensitive sensor and converts the weight of the load into an electrical signal. Thus, hitting the scales can disrupt its work or simply ruin it. Various other types of damage can also occur.

You should always know how to use a dial balance correctly, as improper use contributes to the grounding of the balance. As with any system, the balance can fail as a result of power surges, and nothing can be done.

Sometimes there is such a problem as a manufacturing defect. Very often, unpleasant situations occur that in production they made some mistake and did not check it. Thus, the product can end up on the counter for subsequent sale. But most often such a problem can be found before the scales are put up for sale, so there are very few people who come across defective goods.

Scale repair

All devices are subject to repair, and dial scales are no exception. But they can be returned for repair only if they have undergone a change in parameters. Thus, the balance is adjusted by calibration. This setting does not require changing parts and blocks of the scale. This can be called a medium repair.

It is worth considering that you still have to open the case, since any repairs are done this way. Basically, the verification seal is removed and, after repair, must be sent for state verification.

Guarantee

In trade, there is one main rule - they always give a guarantee for any product under any circumstances. A guarantee is a very useful thing that helps in case of device breakdown. But we must not forget that she can only help if the breakdown occurred not through the fault of the buyer, and provided that her term has not yet expired.

Repair under warranty is absolutely free. The buyer can pay only a small amount for the parts and parts that have been used. But this rarely happens, because only calibration is subjected to the most warranty.

If the scales broke down through the fault of the buyer himself, then the free repair will not be carried out, and you will have to pay money to the service center. It is this service department that determines the type of repair. Sometimes the scales are sent to the factory, where the manufacturer will tell you exactly whose fault the breakdown occurred and will help to solve this issue correctly.

Sooner or later, any product and any system may break down and not even be repairable. Nevertheless, the term of use can be extended by proper handling of the product. With normal handling and the absence of factory defects, the product can serve for a very long time.

Table dial scales. Weight. VN-10Ts13U (Fig. 155) lever-mechanical table, dial with visual local readout of indications are intended for weighing goods weighing from 100 g to 10 kg. The va antage mass acting on one arm of the rocker arm is determined by the angle of deflection of the rocker arm from the initial equilibrium position. Weighing results up to 1 kg are determined by the indications of the arrow on the dial, and above - according to the indications of the arrow on the dial and the mass of weights on the kettlebell platform.

... Rice 155. General view and diagram of the structure of the table dial weights. VN-IOCIZU: 1 - platform for weights 2 - load-receiving platform 3 - platform barrier;

4 - pillows 5-rocker b - rods; 7-strips 8 - quadrant rods, 9 - quadrant, 10 - dial hand, 11 - dial, 12 - dial scale, 13 - oil brake, 14 - prism calibration chamber, 16 - support prism pillow, 17 - screw legs 18 - level

The weight linkage consists of a main lever, two upper levers (kettlebell and cargo) and a quadrant. The upper levers are kept in a slender (parallel link) position. Are the scales connected by a rod? The dial has a double-sided sector scale. Two paired hands are fixed to the quadrant, which serve to count the readings on the dial scales facing the seller and buy this. The scale has a pointer vibration damper located under the product area. The piston rod of the vibration damper is pivotally connected to the load-receiving lever.

In the weight-lifting platform there is a calibration chamber for taring unloaded scales after their horizontal installation. A level and legs are used for horizontal installation of the scales, rotating ones are fixed with lock nuts.

The weight mechanism is covered with a metal casing, which is tightened with a control screw, and the dial windows are glazed. During transport and transfer, the weight mechanism is fixed with a locking screw

Weighing of goods within the limits of the dial scale is provided by a first-class crank arm, which has a constant weight on one arm - a counterweight, deflected by gravity, for example. Deno to the second short shoulder. The crank deflection is within a quarter circle and is therefore called a quadrant.

The highest weighing limit is 10, the lowest is 0.1 kg. The smallest division is 5 g. The largest value of the dial scale is 1 kg. Cargo area dimensions: 265 x 280 mm. Overall dimensions of the weight: 580 x 28 80 x 680 mm, weight - 22 k2 kg.

Weight. VN-ZTs13U table lever dial with a single-quadrant balancing device with a tare compensator are designed for weighing goods weighing from 40 to 3000 g. The principle of the weight is based on an automatic balancing of a quadrant load mass meter on a loading platform, which rests on a load-receiving lever, lies at one end of the main lever ... The other end of the head arm with the weight balances the weight system back to its original position.

The weight consists of a load-receiving platform, load-receiving and intermediate lever mechanisms, a dial indicator, a lock, a taro-compensating device with a handle, a level and an oil damper. The quadrant is not rigidly connected to the arrows, but through a gear train. Thanks to this, the arrow fixes the weight of the load on a circular scale, which allows more accurate measurements. The tarot weight compensator consists of a coil spring that is connected to the load receptor arm. With the help of the Tartar compensator, the tare weight (up to 400 g) is taken from the readings of the scales. It is used for locking lever systems and during transportation. Aretyretir.

The highest weighing limit is 3, the smallest is 0.04 kg. The number of scale divisions of the tarot compensator is 80, the graduation is 5 g. Overall dimensions of the weight: 580 x 290 x 710 mm, weight - 25 kg

... Rice 156. General view and diagram of the structure of the dial tray weight:

a - general view, b - diagram of a dial indicator device: 1 - case, 2 - frame, 3 - load-receiving steel tape; 4-9 - quadrant, 5 - supporting steel tape b - dial scale, 7 - - arrow, 8 - bar, 10 - gear, 11 - rack, 12 - vibration damper; 13-rods

Weight. VTsL-10 (Fig. 156) lever-mechanical dial tray with visual local readout of readings can be suspended or installed on the counter. It is intended for weighing vegetables and fruits weighing from 500 g to 10 kg. It consists of a load-receiving tray, a quadrant dial indicator, a double-sided dial and arrows from the seller's and the buyer’s side, a lever mechanism, a rack and a suspension bracket with a tray for enclosing goods. Before placing the goods in the tray, the weights are closed by turning the locking knob counterclockwise. After the conclusion of the goods, the lock is opened and the mass of the goods is determined by the dial, the tray is freed from the goods due to its slope.

The highest weighing limit is 10, the lowest is 0.5 kg. The dial scale diameter is 400 mm. The number of dial scale divisions is 1000, the division price is 0.01 kg. Overall dimensions of the weight: 810 x 420 x 1010 mm, weight - - 50 kg.

Desktop electronic scales (rice 157, 158). Weight 1261. VN-ZTsT (Fig. 157) electronic table dial with visual local readout is designed to automatically determine the weight and value of goods. The weight can be used for pre-packing of products, for trade in goods that are sold by the piece (poultry, rabbits) both independently and in combination with an information output unit and check-printing devices.

... Rice 157. General view of weight 1261. VN-ZTsT

1 - loading and receiving platform 2 - base 3 - mounting foot 4 - level, 5 - adjusting feet, 6 - cable; 7-panel, 8 - body, 9 - price display, 10 - weight display, 11 prompt for price entry, 13 - price reset keys; 14 - "Cor" key, 15 - "On" key

The main units of the weight 1261. VN-ZTsT are a lever-type weighing mechanism with a vibration-frequency force transducer (sensor), a load-receiving platform, a stabilization unit, a price input mechanism, a two-sided information display of price, weight, cost.

The linkage mechanism consists of a main and two auxiliary non-equilateral levers, on which the product platform rests with the help of legs. The main arm is connected to a vibration frequency sensor. On the right h on the body of gravity there is a keyboard removable panel. It contains the keys for entering the price (capacity from 0 to 9), the "C" key to reset the price readings, the "On" key to turn on the weight and turn off the "Cor" key for tarot compensation. Tarot compensator is used when it is necessary to obtain a net mass of goods.

The body of the weight rests on three legs, two of which are screw and serve to establish the weight in a horizontal position (level)

The principle of operation of the weight consists in the automatic transformation of the effort of the weighed goods into a number-pulse signal and the transmission of digital values \u200b\u200bof the weight and value obtained in the electronic unit, on the digital indicator display.

... Rice 158. Libra:

a, b - with printing labels for packaging products (printing a barcode of weight, prices, etc.) c _ laboratory (overall dimensions 235 x 250) d - commercial (p. Taring and programming, summing up purchase options, calculating change)

The electronic circuit of the weight is made on integral elements, the use of which in combination with a vibration-frequency force transducer and the use of sealed contacts in the price input device (Cherkone a) provide compactness, high performance and reliability of the scales.

The highest weighing limit is 3, the smallest is 0.04 kg. Tare weight compensation range - up to 0.5 kg, weight indication discreteness - 1 g, cost - 1 kopeck. The time for measuring the mass and calculating the cost - 1 s, lived from a single-phase alternating current with a frequency of 50 Hz and a voltage of 220 V. Dimensions: 505 x 405 x 605, weight 40. K kg.

Scales are mobile commodity. Weight. VP-500G13 (Fig. 159) is a lever-mechanical movable scale-kettlebell with a visual local reading of the readings with a platform swinging and a rocker resting on a rack. The weights are designed for weighing goods in warehouses and shops weighing up to 500 kg and is based on the principle of using a system of non-equilateral levers. The scales have a ratio of the levers of the levers of 1: 100 and t m are called centesimal.

... Rice 159. Scheme of the structure of the weight of the commodity centesimal:

1 - large pid-platform arm 2 - small pid-platform arm :. С - connecting shackle 4 - suspension, 5 - pull rod, 6 - rocker arm, 7 - locking device, 8 - movable weight, 9 - calibration device, 10 -. Girey etrimach, 11 - support prism, 12 - strip with a hole for the finger of the balance isolator

The weight mechanism consists of the following main parts: frame and platform; large and small load-receiving arms; rocker arms with a scale, giretrimach, arrestor; a column and a rod connecting the levers with the rocker arm in the platform.

The weight of the load is determined by the addition of the weight of the weights on the weightlifters and the scale displays. The highest weighing limit is 500, the smallest is 25 kg. The largest value of the rocker scale is 10 kg, the scale division is 0.1 kg. Overall dimensions of the weight: 1045x828x1375 mm, weight - 129 kg.

Automobile scales. Weight. ВС-30Ц24АС (Fig. 1510) lever-mechanical stationary dial with documented registration of remote reading are intended for weighing goods weighing from 1.5 to 30 tons, which are transported by road with a stop at the vangazhoprimal platform.

... Rice 1510. Automobile scales. VS-30TS24AS:

1 - weighing device 2 - indicating device with scale device 3 - handle for applying weights

When weighing goods weighing more than 10 tons, two built-in overhead weights are used. When weighing a load from 10 to 20 tons, one weight is applied, and more than 20 tons - both weights. Weights are superimposed. Turning the handle. As a result of the imposition or removal of weights, a number is set in the scale device window, which corresponds to the conditional mass of gigir.

The main units of the weight are the weighing device of the indicating device and the registration panel. The weighing device includes a load receptor and a weighing mechanism of the load receptor is a steel structure with a wooden deck and asphalt surfaces.

The weight lever mechanism consists of the first and second kind interconnected among the levers, with prisms resting on the pads of the racks. The weight lever mechanism is connected to the indicator attachment of the tyu.

The indicating device serves to automatically balance the load placed on the load receptor, determine its mass on the dial scale and send signals to the registration panel

The principle of operation of the scale device is based on the use of two quadrants, which are symmetrically suspended on tape supports, the moment created by the force of the mass of the load, balanced by the moment from the counterweight of the quadrants. Each load corresponds to a certain position of the quadrants, and, consequently, the position of the arrow of the dial device.

The case is covered with glass on the front side, and a lid on the back. A disc with twelve tracks is fixed on one axis with the arrow of the scale device. On each track, in a certain order, there are passes (transparent areas) and performances (opaque areas), with the groove being the unit code, and the performance being the zero code. Thus, the disc contains numbers in a special cyclic code corresponding to the numbers of the tenth system from 0 to 1000. The thirteenth, extreme track of the disc serves to control the moment of information transfer (damping) of the mobile weighing system.

the readout sensor is the photodiodes located along the disk, which form the photosensor unit. The latter is designed to convert the light signal of the encoded element into an electrical one and transmit it to the encoder.

The encoder is used to convert the serial signals of the photodiodes into certain combinations that are convenient for their further operation. The information on the encoder is transmitted to the decoder in the reading circuit and to the electromagnets of the registering machine, where additional data (date, car number) are also received.

In the event of weight failure or overload, an audible alarm is activated

The largest weighing limit is. ЗО, the smallest - 1.5 t. Scale division -10 kg. The device for reading the weighing results is photoelectric, contactless. The encoder and decoder are of a relay type of power supply from a single-phase alternating current with a frequency of 50 Hz and a voltage of 220 V. Dimensions of the load receptor 12 x 3 m, weight - 3558 k58 kg.

Every home or country farm needs a scale for cooking, weighing the harvest, or controlling your weight. The scales are also widely used in industry, commerce and other fields. Today high technology has reached a significant level.

The spring mechanical scales, which have low weighing accuracy and large dimensions, have been replaced by electronic scales equipped with convenient information displays. Their weighing accuracy has become significantly higher compared to mechanical models.

Device and principle of operation

The device of electronic scales differs from mechanical structures by the presence of a screen on which digital information about weighing results is displayed, as well as the principle of their operation. The accuracy of electronic models is + 0.1 g, and mechanical scales are accurate + 1 g, the difference is very large.

The principle of operation of the first electronic structures is based on the vibrations of the measuring spring, which are processed by an electronic circuit and displayed on a digital screen. Today, inexpensive electronic scales work on this principle.

Expensive electronic models function according to a different principle, which is distinguished by its complexity. The device of such a scale includes two metal discs, which form a kind of capacitor. Under the action of the mass of the object to be weighed on one of the disks, it moves, and the distance between the disks changes, which leads to a change in the capacitance of the capacitor. This change is processed by the electronic device and converted into a weight value.

There are other modern electronic scales, in which a voltage sensor is used as a sensitive element, made in the form of a thin conductor through which an electric current flows. Under the influence of the weight of the item to be weighed on the balance, the sensor is stretched, changing its resistance and the value of the transmitted electrical signal, which affects the weight displayed on the digital screen. There are no mechanical parts in such structures, the weight is measured electronically.

Varieties

There are many types of electronic scales, classified according to: measurement accuracy, type of weighed items, functionality.

Household electronic scales

• Kitchen scales able to accurately measure the right amount of food to prepare a recipe. Such models are useful for a chef in a restaurant, as well as for a housewife. Kitchen models are often called culinary models.

• Universal bench scale have a weighing platform on which you can put a container, put an object that needs to be weighed. To determine the mass on the body there is a "tare reset" button, which creates certain convenience. After placing the container, you must press this button. As a result, the indicator goes to zero position, and you can pour or pour the weighed product. Universal models are produced in different types, both in accuracy and in the largest weighed mass.

• Scales are designed to determine the mass of a person, therefore they are equipped with many different additional functions: memory, determination of muscle and fat mass, etc. The accuracy of such devices most often does not exceed 100 grams, which is quite enough for weight control. Their maximum weighing limit is not more than 150 kg. These scales can also weigh objects or a heavy bag, but they do not have a tare release button.

• Light weight and compact dimensions have electronic scales ... They are good helpers in everyday life, hunting, fishing, camping or at the market. There are some versions of steelyards with a built-in tape measure. Some models of steelyards have a built-in temperature measurement function. The maximum permissible load can vary significantly between designs.

• Another type of household weighing device is pocket scales , which are also called mini-scales. They serve to accurately determine the mass of small objects. These pocket samples can be useful for laboratory use, pawnshops and jewelry stores. Their main advantage is their compact size and autonomous power supply.

Trade scales

Many experts call such electronic scales grocery, since they are used to weigh products in a store, determine the cost, taking into account the price per kilogram. They have great functionality and can be used for permanent trade in a store or catering establishment, as well as in large retail outlets.

Modern electronic scales are capable of weighing products with high accuracy, taking into account the tare weight, determining the price of a piece goods and weighing a portion. Commercial scales can have a display on the counter or on the body. The display can be 2-sided to control the price and weight of the product by the buyer and seller. Reliability and quality factor of commercial scales, service life, convenience, availability of auxiliary functions depends on the manufacturer and cost.

According to the maximum weighing limit, trade scales are divided into three categories: 6, 15 and 30 kg. The first category of devices has a division with a price of 2 grams, they are mounted in places for the sale of light goods with high measurement accuracy. In fish and meat departments, scales of the 2nd and 3rd categories are most often used.

Weighing trade equipment has metrological control, so they are subject to periodic verification to confirm compliance with the established standards.

Commercial scales with label printing function are used mainly in self-service points - hypermarkets and large stores. They are equipped with a special thermal printer, and can print self-adhesive labels with cost, weight, product name and expiration date. A barcode can also be printed on the labels to enable the checkout to be carried out, which simplifies the seller's work.

Products of this type have internal memory and auxiliary functions. They can be connected to a computer, which makes it possible to process information.

Weighing scales

This category includes floor structures with a weighing limit of up to 600 kg. They have become popular in wholesalers and warehouses, as well as in manufacturing. The platform size of these devices depends on the largest weighing range. Floor standing models have a low loading height to make it easier to weigh heavy items such as crates or heavy boxes.

All types of commercial electronic weighing devices are equipped with the option to enter the tare weight. This option makes it possible to automatically determine the weight of the goods without taking into account the tare weight. Some types have the function of accounting for unstable mass. In this case, several measurements of weight are performed for a certain time, then the weight is added up and its average value is calculated.

There are models of commercial scales with a weight limit function. The device beeps that the weighing limit has been exceeded. Commercial electronic scales can be equipped with autonomous or combined power supply, which makes it possible to use them in areas remote from the electrical network.

Laboratory electronic scales

These devices have increased accuracy and are used for weighing small items in scientific and industrial laboratories of various enterprises, shops and banks.

Such devices are divided according to the accuracy class into analytical and precision. The first ones have a weighing accuracy of up to 0.1 mg, and the second ones - from 1 g to 1 mg. They have many auxiliary functions: hydrostatic, dynamic weight determination. Laboratory balances have different types of calibration.

Medical electronic scales

Such devices are used for weighing children and adults in medical institutions. They contribute to the determination and control of a person's weight, promptly show the weighing results.

Baby scales for newborns are highly accurate. With their help, the weight of the child is constantly monitored. The device of medical scales allows for their sanitization. Medical weighing devices must have a state certificate of conformity and the necessary documents.

Industrial electronic scales

Industrial scales are used for stationary weight measurement of bulk and heavy loads. They have become popular in various areas of trade and production, on agricultural land, processing plants, in transport, in warehouses.

This category includes platform scales equipped with a stand-alone, trolley-mounted or wall-mounted display and a large platform. The size of such scales is not more than 2 meters in width and length. Such scales can be built into the floor, equipped with an access ramp. This allows you to quickly and conveniently weigh items placed on trolleys.

Crane electronic scales

Their very name speaks of a type of construction similar to a crane. They are used for weighing the mass of oversized heavy loads in warehouses and factory workshops, or on the street. There are models with radio control. Crane scales are manufactured in the form of a robust device, which includes a metal body and a lifting hook with an indicator connected to. Measurement of the mass of the load is carried out by fixing it on the hook and lifting it to a certain height.

The largest limit for measuring the weight of crane scales is in the range of 0.5-50 tons. These broad limits enable warehouse and factory owners to be flexible in purchasing and selecting weighing equipment.

Benefits

• High measurement accuracy.
• Switching between different units of measure.
• Automatic zeroing.
• Increased measurement limit.
• Memory for saving weighing results.
• Large selection of models.
• Compact body.
• Simplicity and ease of use.
• Auto power off and on.
• Modern stylish design.

disadvantages

• Complex device.
• High price.
• Risk of damage to electronic components.
• Replacement of power supplies is required.
• More frequent malfunctions compared to mechanical scales.
• The presence of fragile elements that lead to frequent breakdowns.