I. Check whether the communication equipment is normal

Once found that the communication equipment is not normal, you can monitor the status of the radar sensor by installing the radar debugging software and reading the configuration data of the radar. Mainly check the radar sensor can accurately determine the difference between the reflected echo and false echo, whether the intensity of the reflected wave reaches the predetermined standard, if the above test is not a problem, it is necessary to check the other electronic components, if it is judged that the radar level meter communication unit is damaged, it is necessary to replace the components as appropriate to ensure that the radar level meter communication is normal.

2. check whether the power supply is normal

If the production site found that the radar level meter in the liquid level rises to a certain value after the change is very slow, you should immediately check the radar level meter power supply is normal, the relevant staff should also be in the daily maintenance, detailed check of the radar level meter of the power supply, power supply with or without normal output. Liquid level changes slowly or no change at all, you need to check the first time whether the fuse of the equipment is blown, if there is no current output, you can basically judge that the instrument is a problem, should be replaced or repaired depending on the situation.

3. Inaccurate display value

Inaccurate display value is a common problem of radar level meter, the cause of inaccurate display value, may be the initial setting of the contrast is not appropriate, or because the display module plug-in connection is incorrect, the relevant staff should try to avoid this problem, once found that the display value is not visible, should be the initial setting of the radar level meter should be checked and check the display module plug-in connection is normal, if the two are normal, then need to check in-depth whether the output current is normal, if the output current is greater than 22mA, then it can be judged to be a failure of the radar level meter display module. These two items are displayed normally, then you need to deeply check whether the output current of the radar level meter is normal or not, if the output current is greater than 22mA, it can be judged to be the display module of the radar level meter is faulty, and it needs to be replaced in time. If the output current is less than 3.5mA, it can be judged that the electronic module of the radar level meter is faulty, and it is necessary to replace the electronic module of the radar level meter in time.

4. The system displays error messages

The radar level meter system often displays error messages, generally leading to this failure is due to data storage before the end of the power cut off, the need for calibration reset and re-calibration. If the alarm is still issued after calibration reset and recalibration, the electronic module of the radar level meter needs to be replaced.

5. Antenna staining, crystallization

Treatment of light pollution tank failure, should first consider the possibility of antenna staining, crystallization, the treatment method is, after power failure, wear appropriate protective equipment, remove the radar tilt down, wipe off the dirt or crystallization with a rag, do not let the antenna bending damage, pay attention to the light take light, do not scrape the iron, so as not to damage to the antenna skin.

6. Diffuse reflection

If there is a low level or no level, the biggest reason may be the bottom of the test container with brackets, pipes, or in the process of steam, the radar wave formed by the diffuse reflection and lead to level failure, at this time, you can wait until the process level is normal, restart will be automatically restored. In this case, you can wait until the process level is normal, restart will be automatically restored. And due to the diffuse reflection caused by steam, the temperature will be automatically restored after the normal.