How to deal with common faults of radar level gauges
1 Guided wave radar level sensor probe and frequent fault handling methods:
Properly increase the installation position of the probe. However, if the conditions cannot be improved due to installation conditions, the problem of the interlocking of the level measurement value with the pump of the tank should be solved: the maximum material level setting can be reduced by approximately 0.5m when When the material level reaches this maximum value, it is possible to stop the feed pump and open the discharge pump.
2. Guided wave radar level meter flooded related processing methods:
Change the radar level gauge to waveguide type measurement. Still installed in the original opening waveguide radar radar level gauge, the waveguide is higher than the exhaust pipe of about 0.2m, so even if the slurry from the exhaust pipe overflow of the bad working conditions, will not make the material level The antenna is submerged by the slurry, and we avoid the stirrer eddy current interference and a large amount of steam emerging from the probe, reducing the damage to the probe, and because the waveguide is well focused, the received radar wave signal is stronger. Has achieved a good measurement effect. The use of waveguide tube measurement method can also improve the metering measurement conditions, improve the instrument measurement performance, and has a very high promotion and application value.
3. The influence of bubble generation on the measurement of guided wave radar level gauges:
Dry foam and wet foam reflect radar waves and have no effect on measurement. Neutral foam absorbs and spreads radar waves, which seriously affects the reflection of echoes and even no echoes. When the surface of the medium is thick and thick, the measurement error is large or cannot be measured. Under this working condition, the radar level gauge has no advantage, which is the limitation of its application.
Radar level gauge routine maintenance method
1. Clean the height of the liquid level in the medium of the guided wave radar level gauge. Do not use excessively hard brushes or metal tools to avoid damage to the sensitive core and the pressure interface threads.
2. Guided wave radar level gauge should be placed neatly, pipelines and lines should be organized; Lubrication is good and timely oil or oil change, continuous oil, no dry friction phenomenon, oil pressure is normal, oil standard is bright, oil path is unimpeded, oil is in accordance with liquid The requirement of the gauge is to clean the oil gun, oil cup and linoleum; use trichloroethylene or alcohol to inject the pressure hole to the height of one-half point and soak it for 5 minutes, then shake it slightly and repeat it several times until it is clean. Stop. It is forbidden to use any appliance to clean the pressure-reducing holes so as not to damage the sensitive core pressure-sensitive diaphragm.
3, guided wave radar level gauge should be cleaned once. In the cleaning guided wave radar liquid level timer, first open the water level meter iron pipe cap of the guided wave radar level gauge, carefully take out the liquid level gauge and then clean the chip, debris, and dirt around the equipment mechanical engineer.
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