Are the sensors of electronic scales afraid of washing?

The sensor of the electronic scale cannot be washed with water, and there are many small components in the sensor, and these small parts cannot be wet.

Hello, if there is a dust cover outside, you can remove the dust cover and wash it with water. If you don't have a dust cover, it's best to wipe it with a damp cloth instead of washing it with water. Because water enters the inside of the scale, it will damage the circuit board or cause the sensor to be damp and the weighing will be unstable.

Electronic scales and sensors are judged to wash hair, of course, they are not afraid of washing, and the other one strangled him to death This computer is that it can shoot guns, all of which are for me that are for Lao Tzu, if you arrive, you can look at it.

This is for sure, all electronic equipment and instruments are afraid of who washes, otherwise, after washing, some parts will be scrapped directly, and some parts will have errors.

This one is afraid of washing and may not be sensitive.

If there is no waterproof instrument, it must not be washed directly with water, and it is easy to break.

The sensor of the electronic scale should still be afraid of water, so this should not be able to pass the water, this should be a more dangerous step, if it enters the water, how should there be a way to enter the water.

Generally speaking, it is scary, because the sensor is also a mechanical group, and it is easy to have problems.

O, your good friend's electronic scale sensor is afraid of water, so try not to touch the water, I hope it can help you.

It should not be afraid of washing, as long as you don't want crystals.

Electronics factories should be afraid. If you get wet, because if the electronic components are not sealed well, there will be a short circuit.

As long as it is an electronic product, it is afraid of water, because the use of water will cause a short circuit in the electronic product, resulting in damage.

Of course, the sensor of the electronic scale cannot be handwritten, this should be a beep can be checked again, but this should not be familiar, this water shoe effect is very bad.

This time on the sensor, are you afraid of washing? This is to see if he is waterproof? If it's waterproof, then it should be spoken.

Here's how to tell if the scale load cell is damaged:

The electronic scale does not show zero, and the display screen flashes constantly.

After the electronic scale shows zero, the weight is added, and the weighing number is not displayed.

When the scale is unloaded or loaded, the displayed numbers are unstable, drifting or jumping.

The electronic scale weighs inaccurately, and the weighing number displayed is inconsistent with the number of weights added.

The repeatability of the electronic scale is not good, and the same weight is added, sometimes the weighing is accurate, and sometimes the weighing is inaccurate.

Introduction to electronic scales:

It is a type of weighing instrument, a tool that uses Hooke's law or the lever balance principle of force to determine the mass of an object.

The electronic scale is mainly composed of three parts: load-bearing system (such as weighing pan, weighing body), force transmission system (such as lever force transmission system, sensor) and value indication system (such as dial and electronic display instrument).

According to the structural principle, it can be divided into three categories: mechanical scales, electronic scales, and electromechanical scales.

Workflow: When an object is placed on the weighing pan, pressure is applied to the sensor, which is deformed.

As a result, the impedance changes, and the excitation voltage changes, and a changing analog signal is output.

The signal is amplified by an amplification circuit and output to an analog-to-digital converter.

Convert into a digital signal for easy processing and output to CPU operation control.

The CPU outputs this result to the display based on key commands as well as programs.

until this result is displayed.

Load Cell:

According to the conversion method, it is divided into 8 categories, such as photoelectric type, hydraulic type, electromagnetic force type, capacitive type, magnetic pole variable type, vibration type, gyroscope ceremony electronic weighing scale, resistance strain type, etc., and the resistance strain type is the most widely used.

Weighing Indicator Type:

Electronic bench scale LCD display).

led。Lamp. VFDK B (key) type:

Membrane keys: Contact type.

Mechanical keys: Composed of many individual keys grouped together.

If the sensor is broken, it can't be repaired, especially for small sensors, but if it's not very serious, you can pull the resistor (pull up or down), if it's completely broken, you have to replace it with a new sensor, and it's OK to recalibrate it after replacement.

I can't fix it. Because the sensor of the electronic scale is attached to the aluminum alloy bracket with strain gauges. The pasting of strain gauges is more troublesome; Electronic scales are measurement products, even if they are repaired, they need to be re-measured, and measurement requires costs; So it is recommended to change to a new one.

Answer: After powering on, the display only shows a string of "8s", and it keeps flashing. In the event of this fault, it is necessary to check whether the weighing pan is placed in the correct position. Secondly, check whether there is a moving object stuck in the sensing weighing part, and then check whether the analog switch manifold is damaged.

When the same weighing load is added to the electronic pricing scale. The value displayed is different for each weighing. In general, this fault occurs when the mechanical lag or repeatability exceeds the specified value.

There are several reasons for the mechanical hysteresis out-of-tolerance: the characteristics of the resistance strain gauge itself are not good; The material and geometry of the elastomer are not good;

The adhesive deteriorates, and the strain gauge and the elastomer are not well attached. When weighing, there is no weight indication on the display of the pick-and-place load pricing scale. If the power supply is normal, check and test the amplification circuit to observe whether the amplification circuit has a weighing signal input.

If there is a load and there is no weighing signal input, the possible cause of the fault and the solution is to check the power supply circuit of the supply bridge. If the power supply circuit of the bridge is not supplied with the bridge voltage added to the input end of the weighing sensor bridge, the output voltage of the bridge supply circuit should be measured to see if it is normal, generally in the case of power-on, the power supply voltage of the bridge is required to be accurate, and its stability is better than 5 times that of the load cell.

Check the load cell itself to see if there is any foreign matter or adherent dirt on it, which hinders the elastic deformation of the sensor, so that when the load is applied to the sensor, the elastomer can not produce elastic deformation normally, so that the resistance of the resistance strain gauge does not change, resulting in no weighing signal output of the weighing sensor bridge. When the non-weighing load acts on the electronic pricing scale, the displayed value of the weighing is not zero, and the displayed value is unstable, and the value is constantly changing. This fault is commonly known as showing zero drift, non-return to zero, and word skipping, and the cause of this fault is:

A certain bridge arm of the weighing sensor bridge has a false connection or open welding, or a certain solder joint has a "grounding" phenomenon; Check whether the power supply voltage is stable, if the stability of the power supply voltage is not good, it is also easy to skip words.

In conclusion, when checking the load cell failure of an electronic pricing scale, the appearance of the load cell is first checked and then tested step by step. On the basis of understanding its working principle, carefully and carefully observe, analyze, and test, the fault will be quickly eliminated.

What brand of electronic scale If the sensor has been used for too long, the problem of the zero position Find the zero resistance and add a resistor, if it doesn't work, change the sensor I have it here to sell ** Net zjyksjcx to serve you.

It is recommended to return it to the manufacturer, and the manufacturer will naturally replace the sensor, because this is a design defect of the product, and the manufacturer will be responsible. Generally, manufacturers will consider adding a protection to the sensor when designing. If you change it yourself, it will be more troublesome and complicated without a new sensor.

After changing, the weight must be corrected, and the corrected weight must first meet the following conditions: 1When calibrating the scale, the weight set by the software; 2.

To have a software calibration scale is required with the corresponding weight of the software; 3.Know the operation process of the scale.

First, it is necessary to control the environment or create a low humidity environment, and it is necessary to prevent moisture from entering the sealed load cell.

Second, the strain gauge of the load cell is the most important part of the sensor, once the strain gauge is wet, it will affect the accuracy and stability of the sensor or even cause failure. Encapsulating the resistance strain gauge, i.e. covering the strain gauge with waterproof material.

Thirdly, it is necessary to ensure a high-quality composite waterproof seal that keeps the sensor's components unaffected and has minimal permeability at the operating temperature next to the balance. The high-quality load cell cable tightly binds the conductor and the housing to prevent moisture from entering the interior through the cable core.

Fourth, welding sealed nucleus, glass and metal cable joints is also sometimes effective. After these treatments, the moisture resistance of the load cell is maximized.

There is a junction box, which can be adjusted through the meter.

What are you going to tune? Tune accuracy or what? The question is unclear.

Dejia Weighing Instrument Respect.

A: Yes, the key is whether the model is OK or not, you can only test. Because they are all piezoelectric elements as sensing devices.

The load cell is a relatively easy to damage component in the weighing cell, and it is easy to cause damage to the sensor due to impact, overload, aging, high temperature, corrosion, etc.

Physical observation: Observe whether the appearance of the load cell is deformed, cracked, etc.

Measuring resistance: After measuring the input and output resistance of the load cell with a multimeter, if there is a large difference compared to the manual, the sensor will be damaged. If there is no manual, the resistance value is determined.

1: Input resistance, output resistance, bridge resistance.

2: The bridge resistance is equal or equal in pairs.

The input resistance is between exc+ and exc-, the output resistance is between sig+ and sig-, and the bridge resistance is exc+ to sig+, exc+ to sig-, exc- to sig+, exc- to sig-), exc- to sig-).

From this, it is possible to determine whether the load cell is damaged or not.

Measure the voltage. First of all, the voltage value between the meter terminal EXC+ and EXC- is measured in the DC voltage range of the multimeter, which is the excitation voltage of the load cell, and under normal circumstances, the excitation voltage (between EXC+ and EXC-) is 5-10V. Now, taking DC5V as an example, the output sensitivity of the load cell we contact is generally 2MV V, that is, the linear relationship between the excitation voltage of the load cell output signal per 1V is 2MV.

When the device is no-loaded, the output voltage (between SIG+ and SIG-) is close to 0, which is less than the maximum output of the sensor. (Maximum output of the sensor = excitation voltage * sensor sensitivity, the sensitivity of the load cell sensor is mostly 2mV V), beyond this range, the sensor needs to be replaced. ）

How to tell if the garage door sensor is damaged, Spartator pressure sensor.

It is crucial for a person to know how to tell if the sensor on a garage door is broken. There are many reasons why a sensor can fail. Here are the steps to guide you through the assessment process.

1.Measure the height of the door sensor.

Measure the height of the garage door sensor to get the desired height of the object to stop it. Remember, if an object is felt approaching, the sensor will prevent the door from opening or closing.

Measuring the door. 2.Get the chest.

Buy some boxes, preferably made of cardboard. Measure the height of the boxes, making sure they are higher than the height of the door sensor. Leave the box at the garage door, just in front of the sensor.

Get the chest. 3.Test the sensor.

Make sure the door is open and activate the opener. You can choose to press the close button or the remote control button located on the garage wall. If the garage door is closed, the sensor is not working.

In this case, checking the alignment of the corkscrew, or better, involves a technician. However, if the door returns to its open position, then the sensor is working properly.

Test the sensor.

4.Check the LED light of the sensor.

Each sensor mounted on the garage door has an LED light located on the outside. Turn on the power and look at each LED on both sensors. If you notice that any of the LEDs have a flashing light, this is a signal that they need to be calibrated in order to work properly.

You can simply adjust the sensor by tightening the screws that support it. If the blink is still on, bend the bracket to tilt it back into the correct position. If the LED light continues to flash, contact a technician.

Check the sensor LEDs

5.Clean the lenses.

Door sensor lenses are susceptible to dirt hindering their proper functioning. Check for dust particles and cobwebs that can disable the sensor lens. Use a soft, lint-free cloth to clean the lenses.

Clean the lenses. 6.Check if there are any objects around.

Test the door to assess if it will still crush the box you put in front of the sensor. If the door is closed, check to see if there are any items that may be present near the garage door. Remove plants, gardening tools, animals from the doorway.

Close the door and check that it remains open, this indicates that the sensor is working properly.

Inspect the object. 7.Assess wetness.

If the sensors are directly exposed to rain or sprinklers or pressure washers, they may not work. It is advisable to wait until they are dry before testing if they are working properly.

Assess wetness. 8.Inspect the wires for damage.

Any damage to the wires may cause the sensor to fail. See if the wires are broken or bitten. Rain or too much water in the sprinkler head may cause a short circuit in the sensor and cause failure.

If the wire is damaged, the sensor should be replaced. If you live in Guangzhou, Guangdong, you can seek our professional Sparttop garage door to assist with wire damage assessment and possible sensor replacement.