flow rate decreasing after injection

[alchemydon]

THANK YOU! I think I know how that happened -- someone wanted to have the pump automatically shut down after 60 min. and this obviously was not the way to do it. Sorry! and, thanks so much, again![/i]

[Peter Skelton]

For that to happen, you need two lines like this

Time ....... Flow
60 ............ 1
60.1 .......... 0

[alchemydon]

fantastic! Chemstation is still something we have to learn. Thank you very much! Not sure how long before we figured it out. Kudos to this forum and to you for your involvement!

[bisnettrj2]

I agree Peter, and that's what I thought we would see.

alchemydon - open up your pump parameters, and remove anything listed in the "Flow" column - there should be a 0.000 listed in there somewhere. That should solve the issue.

*EDIT* - oops, didn't see the posts following the parameters. Glad we could help.

*SECOND EDIT* - another way to shut the pump down after the run is to use the Post-Sequence Command macros (in the Sequence --> Sequence Parameters window, and select the PUMPALL OFF macro. That way, the pumps off, everything else is still on.

[alchemydon]

Thanks again! Site is highly recommended!