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Agilent 450 FID pressure not stable
Posted: Mon May 22, 2017 4:40 pm
by migliuca
Dear all,
I have a pressure problem in the FID column. The pressure setted is 22 PSI, but the real pressure fluctuates quickly from 19 to 23 PSI. I have no idea what could be in wrong. I didn't find any leaks.
thank you!
Re: Agilent 450 FID pressure not stable
Posted: Tue May 23, 2017 8:24 am
by gstaepels
Is the column head pressure fluctating or the pressure of the fuel of the FID?
Re: Agilent 450 FID pressure not stable
Posted: Tue May 23, 2017 12:05 pm
by migliuca
Is the column head pressure fluctating or the pressure of the fuel of the FID?
Hi gstaepels! thank you for the reply.
Is the column head pressure. I use Argon as carrier gas and H2 as fuel gas.
Re: Agilent 450 FID pressure not stable
Posted: Tue May 23, 2017 12:40 pm
by Peter Apps
It is very likely that you have a problem with the carrier gas pressure controller. Unless you are comfortable with trouble shooting and fiddling with the insides of a GC I suggest that you ask for a service call.
Peter