Patent ID: 9429490
Filing Date: 2016-08-30
CPC Classification: G01F,G01L,Y10T

Claim Text:
1. A method for replacing a process measurement instrument comprising: operating a process under pressure; providing a first measurement instrument mounted with respect to a measuring assembly positioned for measuring a parameter associated with the process; removing the first measurement instrument from the measuring assembly while the process operates under pressure; replacing the first measurement instrument with a second measurement instrument while the process operates under pressure by installing and mounting the second measurement instrument with respect to the measuring assembly; wherein the first measurement instrument includes a first coupling that allows a user to remove the first measurement instrument from the measuring assembly while the process operates under pressure without substantial loss of fill or sensing media from the first measurement instrument; wherein the second measurement instrument includes a second coupling that allows the user to replace the first measurement instrument by mounting the second measurement instrument with respect to the measuring assembly while the process operates under pressure, the second measurement instrument: (i) containing pre-filled sensing media configured to react to pressure of the process, and (ii) pre-charged to a pre-determined pressure level.