Single-flange pressure transmitter
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There is a single-flange pressure transmitter used to measure pipeline pressure; the installation location of the single-flange interface is 2 meters away from the transmitter. The transmitter’s range is 0–10 KPa, and currently it shows a pressure of 2 KPa. How to make the transmitter output 4mA? 1. Zero it directly? 2. Proceed with migration? What are their respective advantages and disadvantages? ?
Reset – no need to migrate when measuring pressure, right?
Direct zeroing and migration mean the same thing; there is no difference at all with your single-flange differential pressure transmitter. However, there is a difference with double-flange level gauges, as their migration amount is often negative, so any advantages or disadvantages you mention lose their meaning!
I didn’t see it clearly just now; if that’s the case, we usually just reset it directly
Both migration and zeroing have the same meaning; the difference is that zeroing involves a smaller range of adjustment, while migration covers a much larger range, and in some cases it can take place across the entire range.
It cannot be migrated; simply reset it to zero.