E+H guided wave radar level gauge
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The guided-wave radar level gauges from E+H always exhibit modulation when measuring liquid levels; for example, the measured level may show 50% one moment and suddenly drop to zero, during which time the pump continues to draw material out. Under normal circumstances, the liquid level should change gradually; how can this be adjusted to make it normal?
The jump should be normal; it’s possible that some interference from external factors is causing the issue
It’s possible that the operating conditions are not set correctly. Also, if normal operation is restored in a short time, the fault output can be adjusted to stay at that level; sometimes, when there is a loss of signal during measurement, the value can drop to 0
In the case of wave loss, it is possible that the interference suppression at the current actual liquid level is too strong. If possible, check the waveform; if not, estimate the liquid level and apply interference suppression again. Note that the suppression distance should be the distance from the liquid surface to the radar flange surface (it’s better to make this distance slightly smaller; the actual liquid level needs to be estimated)
Apply suppression in the menu and increase the damping time