4 Replies Latest reply on Mar 15, 2018 1:30 PM by james_jenkins

I am using a 2 valve system for gas analysis with 3 columns, column 1 does not get any flow through it and I cannot see why.

julesleach Feb 5, 2018 2:48 PM

Any suggestions on what to look at? Would there be a setting I haven't checked that I didn't notice? Or is it likely to be a blockage?

Re: I am using a 2 valve system for gas analysis with 3 columns, column 1 does not get any flow through it and I cannot see why.

james_jenkins Feb 6, 2018 5:42 AM (in response to julesleach)

Hi julesleach,
I updated the tags for better visibility in the Agilent community.
Regards
James
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Re: I am using a 2 valve system for gas analysis with 3 columns, column 1 does not get any flow through it and I cannot see why.

shawntravis Feb 6, 2018 7:00 AM (in response to julesleach)

Hello julesleach,
Can you share a valve diagram showing how these columns are connected to the PCMs and the detectors?
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Re: I am using a 2 valve system for gas analysis with 3 columns, column 1 does not get any flow through it and I cannot see why.

james_jenkins Feb 6, 2018 7:40 AM (in response to julesleach)
Hi juleleach,
One of my co-workers provided the info below. As @shwantravis mentioned, a valve diagram would help as well. See the attached pdf as an aid.

PCM channel 2, pressure control only. Channel 1 pressure or flow. Looks like this has Channel A1 and B1 in flow mode and A2 in pressure only for col 1.Without column dimensions, it wont report flow for that channel.
James

PCM.pdf 21.4 KB
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Re: I am using a 2 valve system for gas analysis with 3 columns, column 1 does not get any flow through it and I cannot see why.

james_jenkins Mar 15, 2018 1:30 PM (in response to julesleach)

Marking this as assumed answered, if not, please feel free to come back for further discussion.
James
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