How does the chain reaction get triggered?
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May I ask how to interpret this level interlock? Do both conditions need to be triggered simultaneously, or is it sufficient for just one of them to trigger the interlock? Also, how do you read the chain value?
Two? Are you referring to the two LG level gauges on the right side? To determine how the interlock should be triggered, it’s necessary to examine the logic – what is the relationship between gauges A and B and LISA44001-1A, and should it be based on the average value or on whether one value is higher or lower than the other?
Do both the high level and low level xv valves close?
The PID diagram only shows whether it is an interlocked valve; however, to determine the interlocking logic, it is necessary to refer to the relevant interlocking logic diagrams for greater accuracy
Under normal circumstances, LISA triggers a high liquid level alarm; an extremely high liquid level causes the feeding to be stopped forcibly； But what about the low liquid level alarm, and the very low liquid level?
Is the liquid level LISA44001-1 too high, causing the feed valve XV44001-1 to close? Liquid level LISA44001-1 is low low; is the feed valve XV44001-1 open? The specific interlocking method depends on the interlocking logic diagram
The two LG level gauges are magnetic flip-disc type level gauges equipped with reed switches; they only provide alarm signals and do not participate in valve control
Yes, can this XV two-position control valve only be fully open or fully closed? There can still be an opening degree