Siemens radar level gauge
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The Siemens radar level gauge is showing the situation shown in the image; has anyone experienced this before and can provide an analysis? Thank you
Fault codes can reveal the following: 1. Check whether the liquid level is outside the specified range? 2. Check if there is any debris attached to the antenna, and clean it. 3. Check the antenna itself and its operating environment: Physical damage? Too high a temperature? Too much steam? Multiple echoes? 4. Check whether the installation is correct and whether the flange is level
It’s mainly due to excessive temperature and physical damage; is it still repairable?
Repair might be an option, but it’s necessary to determine the number of damaged components. If the damage is severe, it’s better to replace them; next time, choose a high-temperature version
Check the echo curve to see if it exceeds the set range.
The circuit part isn’t a major issue; the problem lies in the crystal oscillator being damaged due to high temperatures. If there’s a replacement available, it can be tried
Radar level gauges of the LR250 series often experience issues such as the loss of radar waves or weak radar signals. The main reasons for this are as follows: 1. Corrosion of the radar transmitter in the radar level gauge (caused by harsh field conditions)； 2. The temperature inside the tank is too high, resulting in condensation water on the probe ； 3. Aging of the waveguide rod inside the PTFE sleeve ； Solutions: 1. Disassemble the probe of the radar level gauge and clean the radar transmitter of the level gauge ； 2. Raise the radar level gauge by 300 mm under normal pressure conditions; if the temperature is still high, it is recommended to raise it by 500 mm ； 3. Replace the waveguide rod ；