How to adjust the floor electronic scale. Why the scales show strange letters and numbers and what to do about it. Floor electronic scales with memory
Before we start setting up the measuring equipment, we should determine what categories of scales can be encountered in everyday life. Thus, we most often encounter the use of the following types:
- Floor trading scales. most often we meet this kind of equipment in the halls of stores and small retail outlets. A distinctive feature of these weighing instruments is their small size and limited weighing limit.
- Floor warehouse scales. used in warehouses, vegetable depots and wholesale outlets. Mostly, these scales weigh large loads, such as a bag of potatoes or other vegetables.
- Electronic floor scales for determining a person’s weight. This equipment is available in almost every home that cares about their own health and weight loss.
Important! All types of weighing equipment need timely maintenance, which includes a procedure for adjustment.
What to do if a floor electronic scale does not work?
If electronic floor scales do not work and do not turn on, the reason may be the dead batteries. To be sure it is the power supply, remove the battery and check it on any working electronic device. If the device with this power source also will not work, then replace the batteries and then the scales do not need to be repaired.
Important! Sometimes, taken out of the scales tablet (battery) may work on another electronic device, but this does not mean that it is suitable for the scales. Find a completely new battery or other power source capable of supplying 3 volts DC to the terminals. If the scales work, no further repairs are advisable.
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As for the buttons, the simple models do not have them at all. And, in more expensive models, the buttons are usually touch sensitive, so most likely the problem is not with the buttons.
Important! The most important thing that the owner of an electronic scale should remember is not to touch the display! The display is out of our hands. Do not touch any fasteners on the display, screws, glue that attaches the display. if air gets under the sealed glass, it will break the polarization of the crystals, and the screen will become black with unsightly streaks.
What to do if your electronic floor scale doesn’t work?
If the electronic floor scales don’t work and don’t turn on, the reason may be the dead batteries. To be sure that it is in the power source, remove the battery and check it on any working electronic device. If the device with this power source will also not work, then replace the batteries and further repair the scales do not need.
Important! Sometimes, a tablet (battery) removed from the scale may work on another electronic device, but that does not mean it is good for the scale. Find a brand new battery or other power source capable of supplying 3 volts DC to the terminals. If the scale will work, then no further repair is necessary.
As for the buttons, the simple models do not have them at all. A, in more expensive models, usually have touch buttons, so most likely the problem is not in the buttons.
Important! The most important thing the owner of an electronic scale should remember is not to touch the display! The display is beyond our capabilities. You can not touch any fasteners on the display, screws, glue that fixes the display. if air gets under the sealed glass, the polarization of the crystals will be broken, and the screen will become black with unsightly smudges.
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How to find the source of the problem
It is extremely problematic to carry out the diagnostic measures on your own. You will need to follow the following algorithm in order to find the problem:
- Carefully examine the scales for deformations.
- Remove protective feet from the load cells. Examine the metal plates.
- Disassemble the case. Check all internal elements.
In order to disassemble the case you will need to remove all bolts
In some devices the bolts may be hidden behind a sticker. Before opening the scale, make sure that all screws have been unscrewed, otherwise the housing could be damaged.
You will need a special tool to restore the device to working order. It is necessary to prepare in advance:
You may also need replacement sensors. They can be purchased from a specialty store or removed from other products. At home a person can repair only minor malfunctions. If difficulties arise, turn to the experts. In every city there are companies and craftsmen who are engaged in repair work.
What are medical floor scales and how to choose them, read here.
Eliminate the most common breakdowns
For a successful repair it will be necessary to follow a simple algorithm of actions. If a person wants to know how to repair floor electronic scales, he should read the step-by-step instructions for repair.
If the scales are broken because of the sensors, you first need to determine the type of problem (sensor bending, wire breakage, total failure). If the malfunction is related to the curvature of the design, it will need to be straightened. Most often one of the load cells fails. If this is the case you will need to do the following.
- Check the functioning of sensors. To do this, you need to put your hands on each of them. Even at a slight pressure on only 1 sensor scales should turn on.
- Disassemble the scales, carefully examine the wiring.
- If there is a breakage (near the board or the sensor itself) it will need to be repaired. You will need to use a soldering iron for this.
- In some cases, the break is hidden behind the adhesive backing. It is necessary to open it carefully and check the connection.
Wires connected to the load cell
If the sensor is completely broken, it will be replaced. It is difficult to find and buy a suitable spare part by yourself. When looking for a new load cell, you must pay attention to its compatibility with the device. It is better to buy it in specialized stores. It is necessary to use the help of consultants when buying. The new sensor will need to be fixed in the seat and the wires soldered to it.
Recommended reading: choosing an electronic floor scale.
Loop repair is usually needed when the display does not show numbers completely. Loop is a set of wires that connects the display and the circuit board inside the device. To assess the condition of this element and make repairs, perform the following steps:
- Complete disassembly of the case. Check cable continuity.
- If the numbers are not completely displayed, it means that the flat cable is loose.
- Elements that are loose from the board should be safely soldered.
Fuzzy numerals shown on the display (example on the picture) can be caused by display failure or bad connection of wires
You can use a special conductive glue to press the cable and all the contacts to the board. After that, the problem should disappear. All work on the gluing or soldering should be carried out with great care. There is a chance of damage to the circuit board if you are not careful.
Calibrate the device
In some cases, the malfunction is due to improper sensor setup. Incorrect data on the display can be displayed if for some reason the calibration was not made. Modern scales are automatically calibrated each time they are placed in a new location.
Repair the most common faults
For a successful repair you need to follow a simple algorithm. If a person wants to know how to repair an electronic floor scale, he should familiarize himself with the step-by-step instructions for repair.
If the scales are broken because of the sensors, the first step is to determine the type of problem (sensor bending, wire breakage, complete breakage). If the malfunction is due to a warped structure, it will need to be straightened. One of the load cells most often fails. In this case you need to do the following.
- Check sensors functionality. To do this, you will need to put your hands on each of them. Even a slight pressure on only 1 sensor should turn the scale on.
- Disassemble the scales, carefully examine the wiring.
- If there is a breakage (near the board or sensor itself), it will need to be repaired. To do this, you will need to use a soldering iron.
- In some cases the breakage is hidden behind the adhesive backing. It is necessary to open it carefully and check the connection.
Wires connected to the load cell
If the sensor is completely broken, it is replaced. To find and buy a suitable spare part is quite problematic on your own. When looking for a new strain gauge you must pay attention to its compatibility with the device. It is better to buy it in specialized stores. It is necessary to use the help of consultants when buying. The new sensor will need to be fixed in its seat and the wires soldered to it.
We recommend you read: choosing electronic floor scales.
Repairing the loop
Repair of the plume is usually required when the display does not show numbers completely. Loop is a set of wires that connects the display and the board inside the device. To assess the condition of this element and make repairs, carry out the following actions:
- Disassemble the case completely. Check the integrity of the daisy chain.
- If digits are not completely displayed, it means that the flat cable is loose.
- Elements that are loose from the board are securely soldered.
If the display does not show the numbers clearly (see picture for example) it may be because the display is broken or the connection of wires is poor
You can use special conductive adhesive to press the flat cable and all the pins to the board. After that the problem should disappear. Great care must be taken when performing any type of bonding or soldering. There is a possibility that the board is damaged if you don’t treat it carefully.
Calibrating the device
In some cases the malfunction is due to improper sensor adjustment. Incorrect data on the display may appear if for some reason calibration was not made. Modern scales are automatically calibrated each time they are in a new place.
Repair of scales
Repair of scales and the Moscow region
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We repair electronic scales CAS, Massa-k, Mettler Toledo, Digi, Acom, Tenso-M, Mera, Shtrich, Fiztech, Nevskie Scales, Tves, Midl, PetVes, Mercury. Any industrial, trade, crane, warehouse electronic scales. We have qualified specialists in our service and spare parts in stock. So repair quality and fast. Let’s try to answer the questions that arise when a person breaks the scales.
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PRICE-LIST FOR REPAIR OF MIDDLE ACCURACY CLASS SCALES
PIANO KEYBOARD CASIO REPAIR (NO POWER)
|The cost of work (.)|
|Type of scales (according to maximum weighing limit), kg||Repair|
|up to 30||1050||1350||1700|
|30 to 150||1650||1950||2200|
|from 150 to 600||2150||2450||2700|
|600 to 5000||2650||2950||3300|
2) Cost of repair does not include cost of spare parts. Parts are charged separately at the previously agreed price.
3) The cost of repair does not include the cost of departure of the repair team.
Small repair of scales. replacement or restoration of wearing parts (signal cables, network cables, connectors, keyboard, buttons, thermal heads), mechanical adjustment of weights.
Average repair scales. provides partial disassembly of equipment, replacement of defective parts (transformers, indicators, belts, motors, pasis, gears, rubberized shafts, switching circuits RS-232, photosensors), adjustment of photosensors, setting tape drive mechanisms and friction, calibration scales.
Overhaul of scales. requires complete disassembly and repair/replacement of basic units (main boards, power supply boards, terminals, network cards TCP / IP), replacement of worn / broken weight sensors and subsequent adjustment / firmware / calibration.