N2 autoloop @ 9:48. Forgot to open cylinder N2 autoloop @ 11:18 Load ND19681, vent x 3 and pressurize. When ready to run, vent once more, pressurize, close cyl valve and ball valve Close N2 ball valve, start loop til flow drop Flip 4 way, click radio button, watch till flow drops, open ball valve, watch till flow drops, open cylinder valve N2 loop @ 13:42