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Small-signal cutoff problem

2019-06-07View Original

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What is the difference between performing small-signal rejection on a flowmeter on-site and doing it via DCS?
Reply #22019-06-07
This has been discussed before; look for it on the forum. There is no explicit requirement for this; it is usually handled by DCS, but it isn’t done now. Get it unified so there’s no need to repeat the work later. It can be done with either DCS now, but it must be ensured that only one party does it. This works on the same principle as taking a square root; don’t forget it, and don’t repeat it. It needs to be standardized: either everything is handled by DCS, or everything is handled by instruments.
Reply #32019-06-08
Either one is fine. If it is repeated, the one with more cuts will be taken as the standard. It is best to standardize the resection site; otherwise, adjustments will cause trouble. It is recommended to perform the resection on a DCS, as the differential band resection function comes at an additional cost. And the amount of resection for some DCS can be adjusted intelligently.
Reply #42019-06-08
So what’s the difference between linear resection and zero-point resection? When to use linear resection and when to use zero-point resection?

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