Hi All. I have a vibrating wire pressure transducer hooked up to a CRVWseries datalogger that is monitoring water level fall in a tunnel that is being drained. It's crucial for the client to know the drainage rate and drainage rate over a moving 15 minute interval. Using RTMC I need an expression for a graph that will show a running 15 minute rate of water elevation change. I'm not very savvy at writing expressions. Any help would be appreciated. I was thinking of using the Statistical Function: AvgRunOverTime, but I'm not sure how the structure of the expression should look for my data input "Server:CRVWSeries.VW_Data.TunnelDrain_WaterElev". Thanks in advance.
-Joe
AvgRunOverTime("Server:CRVWSeries.VW_Data.TunnelDrain_WaterElev",Timestamp("Server:CRVWSeries.VW_Data.TunnelDrain_WaterElev),15*nSecPerMin)
Cheers,
Mark
Thanks Mark. I'll give it a try.
-Joe
Mark, the expression above allows me to graph water elevation averaging over 15 minutes, but how do you add in an expression to calculate rate change of water elevation (in feet/hour)? Is there a function for that?
Thanks.
Joe