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User name hcf
Log entry time 23:56:40 on December 02, 2004
Entry number 92363
keyword=corrected scale factor for SOS argon flow controller
The replacement flow controller for SOS argon has full scale = 1.000 slpm.
The one taken out today has full scale= 2.000 slpm. The control system was
not informed of this change. The result is that we've been flowing 1/2
the desired amount of argon since 10:30 this morning.
To speed the recovery I doubled the flows to the SOS chambers, so now
we are running 0.3 slpm of argon and 0.3 slpm ethane. We need to set
this back to normal in the morning.
Dave G. had checked the channel 1 zero offset and found it to be 0.018
slpm. He rezeroed it. Hopefully, now that the controller has been
installed and on for several hours, this will remain stable.