FAQ

First determine the maximum weight

As far as possible to set aside allowance, overweight is caused by electronic balance, electronic scale damage the main reason。

Determination accuracy

If it is a general error to determine the allowable weighing, as long as you can, for example, the allowable error of 0.1 grams, 0.1 grams of precision that buy it, but if it is time to put everything ingredients, rarely, taking into account the sensitivity of balance, we propose to improve the accuracy, such as only put 0.1 grams of things, we it is recommended to buy 0.01 grams of precision products. Under normal circumstances according to the precision can be divided into the following categories of balance：
v microbalance
The scale of the balance is generally in the 3 to 50g, its index value is less than (the largest) weighing 10-5, such as the AT21 Sartoruis type electronic balance and S4 Mettler electronic balance。
v Ultra micro electronic balance
The maximum scale of the super micro scale is 2 to 5g, and its scale value is less than (the largest) weighing 10-6, such as UMT2's Mettler electronic balance and so on。
v semimicro balance
Semi micro scale weighing generally in 20 to 100g, its index value is less than (the largest) weighing 10-5, such as AE50's Mettler type electronic balance and M25D Sartoruis electronic balance and so on all belong to this category。
v Constant electronic balance
The maximum weight of such a scale is generally in the 100 to 200g, its index value is less than (the largest) weighing 10-5, such as AE200's Mettler type electronic balance and A120S Sartoruis, A200S type electronic day average belonging to a constant electronic balance。
v analytical balance
In fact, the electronic analytical balance is a general term for a constant balance, a semi micro scale, a micro balance and a super micro balance。
v Precision electronic balance
This type of electronic balance is a general designation of the electronic balance of the accuracy class II。

Pan size

If the goods weighing a large volume selection of weighing scales is too small, will cause the weighing error is too large, therefore, should try to choose the suitable weighing goods or containers. Weighing pan size is larger, the higher the precision, scale size, the cost is higher, hope you weigh yourself, choose suitable for their own products。

1.maximum capacity

An electronic balance excluding tare, maximum weighing capacity (full value), which can weigh the maximum load；

2.Minimum weight

A relative error that occurs when an electronic scale is below that value；

3.charge of surety

120% of normal weight range；

4.Rated load

Normal range of weighing；

5.Margin of error

Maximum allowable deviation level verification；

6.Amount of sense

An electronic scale can display the minimum scale; Usually use d to represent；

7.Minimum scale

Jump value, such as: 60 kg x 5 g, 5 g is the smallest scale, namely the sense of minimum quantity；

8.Calibration interval

Feeling = (e), indicates how much each jump can increase the weight, for example: 300 g (0.001 g, 0.001 g is the amount of sense；

9.Calibration interval number

Such as scale by 10 g jump, every 10 g for a scale until the biggest weighing scale for how many number， 　　 　　
For example: 100 kg x 10 g, (100 x 1000) present 10 = 10000100, 00 is the calibration interval number；

10.precision

The ratio of sense and the whole weighing. Example: the minimum scale weighing 6000 g (feeling) 0.5 g. Is 05/6000 = 1/120001/12000 is for the precision of scale；

11.Electromagnetic interference

Radio waves generated by the interference with the known, for example: waves emitted from mobile phones。

Precision in the process of weighing scales measuring error caused by placement uneven, weighing accuracy is higher the greater error, so most of the precision balance provides level adjusting function. There is a level bubble behind precision balance. Liquid level bubble must be in the central cavity, or weighing is not accurate. After set, should try not to move, otherwise, level bubble may be offset, and need to reset。

Precision balance generally has two leveling base, located in the back, there are also located in the front. Rotate the two leveling base, can adjust the balance level。

1、Rotary leveling base, left or right, the level of the bubble is transferred to the fluid cavity Central Line first。

Separate rotating a leveling base, left or right, tilt of the balance is adjusted, certain level bubble can be transferred to the Central Line。

Which one of the key is the leveling base. Beginners can such judgment, manual tilt first electronic scales, the level of the bubble to the Central Line, then watch the leveling base, which one is high, or low, adjust the height of one of the leveling base, can cause the level of the bubble moves to the Central Line。

Note: at the Central Line, to use the next step。

2、Rotate the two leveling base at the same time, the range must agree, must be clockwise or counterclockwise, make level in the Central Line of mobile, eventually move back to the center of the liquid cavity。

Leveling base clockwise or counter-clockwise, at the same time scales tilt remains the same, this will level bubble from the Central Line, no problem as long as the direction of rotation, it can certainly achieve liquid cavity central。

Clockwise or counter-clockwise: rotate the leveling base with both hands, one hand to her chest, one hand to the chest outside, in the opposite direction, the general is the clockwise or counter-clockwise base at the same time)。

Direction: beginners is easy to determine the direction. Can manually raise the base or another bearing, the blister to central, to observe the position of the leveling base, looking is need higher or lower。

Note that the second step, hands must be consistent. If not consistent, liquid beads will offset the Central Line. If the offset from the first step to start again. Skilled after 1-2 minutes to leveling precision balance a level bubble。

1、

The bar code electronic scale electronic scale supermarket actually. In supermarkets, stores is a very frequent equipment, commercial weighing apparatus in the family is the highest technical content among products. And once the barcode electronic scale fault occurs, immediately bring busy fresh supermarket, bulk sales. Therefore, to ensure the normal work of the bar code electronic scale is very important. Daily maintenance can not only reduce the probability of failure, can also increase the service life of equipment.

2、

For this, the operator should be in strict accordance with the operating instructions to guide work, not rough operation. Such as switch is normal operation, can't pull the power cord directly, otherwise it will cause unexpected damage, caused the phenomenon such as zero drift, light person the person that weigh sensor completely damaged. Aquatic products often use hanging type barcode electronic weighing, but many price point of view, supermarkets and department stores often use desktop barcode electronic scale instead of hanging type electronic scale. Barcode many of electronic components are all charged to work, such as printers, keyboards, connectors, etc., so in use process should pay attention to waterproof, especially seafood brine corrosion resistance, electrical conductivity is very big. Otherwise, will cause a short-circuit burning machine.

3、

Greasy and weighing must be well packed goods, can prevent the shell of plastic parts, such as aging, at the same time large oily debris falling into a machine affect the sensitivity and accuracy of the sensor.

4、

Avoid placed in direct sunlight place and operation The supermarket electronic scale. Direct sunlight will directly affect the effect of display, and reduce the life of the screen. Bright light will affect the work of bar code electronic scale of infrared sensor, incorrect operation of the printer. To avoid place your supermarket electronic scale in air conditioning, electric fan, entrances, and other areas with frequent air flow, air flow to scale to weigh the impact of the precision and stability of the impact is very big.

5、

Under special circumstances or supermarket electronic scale anomalies in use process, first off, wait for a while operation again.

Method One

First of all we want to check the appearance of the electronic platform scale, because the shell of the stand or fall of material also is one of the cause of the products use lifespan, check the appearance is mainly the key design is reasonable, whether display is easy to read, etc to check;

Method Second

The accuracy of testing the products weighing goods weight, must will open the electronic scale before testing for half an hour of preheating, ensure the accuracy of weighing, and products to zero, determine the stability of its data. Here is not just to a need to repeatedly weighing to test, determine the display value can't super bad, linear error check such as: the biggest weighing of 1/3, 2/3, 3/3 weight, the above error as small as possible;

Method Three

Check whether the electronic platform scale function is suitable for their own work environment, depending on their demand for product features, platform scale, after all, the function of the electronic scale, then the price will change;

Method Four

Check whether it is the national standard of measuring instruments, to know whether the production of electronic platform scale manufacturers with measuring instruments production license and make sure the product contains certification, warranty CARDS, operating instructions, accessories;

Method Five

Electronic platform scale from the warranty provisions and related product file to see how their electronic platform scale manufacturer of comprehensive credit, this is more important, as domestic now hit the unqualified products is very serious.