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  1. igorcornejo

    Custody metering of Oxygen >10:1 turndown

    An orifice plate who's required turn down is 10:1 means that the transmitter has to have a turn down ratio of at least 100:1 (Since flow is proportional to dP^1/2). Although some transmitter manufacturers are going to boast that they have transmitters with far more rangeability than this, are...
  2. igorcornejo

    Instrumentation tagging by mechanical equipment numbers

    I've used mechanical equipment numbers to tag instrument devices and I think this is the most effective means of tagging a piece of equipment. That said, some clients prefer suffixes - such as FT-103A and FT-103B and some places prefer things like FT-103-1, FT-103-2, etc. dcasto: you're idea...
  3. igorcornejo

    Instrumentation tagging by mechanical equipment numbers

    Hi; Does anyone have any suggestions on where I can find good guidelines or rules regarding tagging instrumentation by equipment numbers? For example, Suppose I have a vessel: V-300 A pressure transmitter on this vessle would be PT-300, the level transmitter would be LT-300, etc. If anyone...
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