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Loop Checking and Field Instrument Testing Procedure

Oct. 4, 2012

Everybody knows that loop checking and field instrument testing is the last piece of the puzzle in each project before commencing the commissioning of any system. It is time-consuming and depends upon the completion of other systems like piping, electrical equipment, control valves etc.

Everybody knows that loop checking and field instrument testing is the last piece of the puzzle in each project before commencing the commissioning of any system. It is time-consuming and depends upon the completion of other systems like piping, electrical equipment, control valves etc.

Each contractor or company has its own procedure and common practices for instrument loop checking and functional testing. I found this forum is good place to discuss this topic in more detail, for example:

  1. Can we have a common or guide line procedure for loop checking?
  2. Can we illustrate all the required drawings, specification and forms required for loop checking?
  3. Can we build a flow chart for loop checking which illustrates the rule of operation, maintenance, engineering and inspection for example?
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