Is The Instrument Output Abnormal? How Refineries Deal With Radar Level Gauge Problems in Storage Tanks

Storage tank radar level gauges have been widely used in a wide range of application scenarios due to their obvious advantages such as long service life, strong anti-interference ability, suitability for a variety of media, and high reliability. In the refinery tank area, maintaining the radar level gauge is relatively simple. It is necessary to focus on checking the operating temperature, power supply, whether there is diffuse reflection, whether the antenna is crystallized, and whether the instrument output is always at the maximum value, etc., to reduce the occurrence of faults and effectively It ensures the normal operation of the tank radar level gauge in the refinery tank area.

1. Make sure that the operating temperature of the tank radar level gauge is within the normal range. Normally, the operating temperature inside the radar head should be maintained at about 65°C, but if the temperature of the liquid being measured is high, it may exceed this range. If the temperature exceeds the normal range, special equipment should be used for scientific cooling instead of simply using water for cooling.

2. Check whether the power supply is normal. Under normal circumstances, the Tank area radar level gauge should start quickly and start working normally after power is supplied. If an abnormality occurs, check whether the power supply is normal, whether the power is actually connected, and whether the fuse is burned out, etc. For short-term outages of the instrument, there is no need to cut off the power supply.

3. You also need to check whether there is diffuse reflection. During the detection process, the liquid level may decrease due to evaporation and other factors, causing diffuse reflection of the emitted microwaves, affecting the accurate measurement of the liquid level. Diffuse reflections caused by steam usually disappear on their own after the temperature returns to normal.

4. Pay attention to check whether the antenna is crystallized. After a power outage, appropriate protective equipment should be worn and crystals or dirt on the antenna surface should be gently removed. During the cleaning process, be careful not to damage the antenna.

5. The tank radar level gauge also needs to check whether the instrument output is always maintained at the maximum value. If the output continues to remain at the maximum value, it may be caused by water droplets under the quartz or dirt on the surface of the quartz crystal. At this time, effective measures need to be taken to clean up and ensure that the instrument returns to normal operation.

6. If the instrument fails and the above conditions have been eliminated, you need to check its fault code for accurate diagnosis and timely and effective processing. If normal operation still cannot be restored, you need to disconnect the power supply, test one by one and determine the cause and location of the fault.