W
I am running some 7FA turbines at a power plant that use the Ametek PG 3000 series pressure transmitters. These are great if you have the time to monitor and calibrate them frequently, as they drift a bit but last forever.
I am considering replacing these with another suitable SMART device but have had some questions about the potential change:
1 Is a SMART transmitter response time fast enough?
2 How can I determine the scan rate of Mark V?
3 What SMART device will take the heat and vibration?
I see rousemount has some good details about response time in their manuals (and on controls.com). I have been buying a lot of Autrol because of the low cost but not as good of response time literature.
It is a tough decision to replace a known good transmitter with the unknown, but we are a slim-operations facility. 2 Technicians, 1 mechanic, 1 electrician (30 total employees) at a 6 unit 1200MW facility. Drift is tough to keep up with when looking at positioners, pressures, temps, etc.
Any one have some suggestions or experience with such changeouts?
I am considering replacing these with another suitable SMART device but have had some questions about the potential change:
1 Is a SMART transmitter response time fast enough?
2 How can I determine the scan rate of Mark V?
3 What SMART device will take the heat and vibration?
I see rousemount has some good details about response time in their manuals (and on controls.com). I have been buying a lot of Autrol because of the low cost but not as good of response time literature.
It is a tough decision to replace a known good transmitter with the unknown, but we are a slim-operations facility. 2 Technicians, 1 mechanic, 1 electrician (30 total employees) at a 6 unit 1200MW facility. Drift is tough to keep up with when looking at positioners, pressures, temps, etc.
Any one have some suggestions or experience with such changeouts?