Hey im an apprentice instrument technician just wondering there are a lot of various information about this I just feel paranoid about damaging a dp transmitter. I only work on natural gas for medium
remove from service
1. open equalize valves
2. close LP and HP block valves
3. open vent
return to service
1. close vent
2. open equalize valves
3. open LP and HP block valves
4. close equalize
?
remove from service
1. open equalize valves
2. close LP and HP block valves
3. open vent
return to service
1. close vent
2. open equalize valves
3. open LP and HP block valves
4. close equalize
?