Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

URL/span ratio for level instrumentation

Thread starter gorgor
Start date Oct 10, 2008

Status: Not open for further replies.

Oct 10, 2008

gorgor

Nuclear

Hello,

i've done some uncertainty calculation for our plant level and pressure instrumentation (Westinghouse 2 loop PWR) and level uncertainties are pretty high. main reason is because upper-range limit for dp transmitters is high (750 inch of water) compared to calibrated span, which is about 5 times smaller. Did any of you have simillar problems, what is URL and span for your SG/PRZR level instrumentation?