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Synthesis tower drum level interlock

2011-04-23View Original

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Interlock for the liquid level in the synthesis tower’s drum – what should be the set value for the low liquid level interlock? We use 18% for this purpose. Do you think it is more feasible to use option 1 or option 2 for the interlock related to low liquid level in the synthesis tower’s drum?
Reply #22011-04-24
I think 2-out-of-2 is better, as it offers higher reliability and prevents false alarms caused by instrument failures that could lead to vehicle shutdown; some systems even have 3-out-of-2 or 3-out-of-3 options! As for the interlock value, it is determined based on the specific conditions of the process and equipment, so there won’t be much variation; 18% is a good estimate, and that’s roughly the value we use here as well
Reply #32011-04-24
We play 3v3, and we basically don’t shoot at all
Reply #42011-04-24
Choosing 2 out of 2 seems reasonable; we only have one level switch

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