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Agilent G1888 Headspace with a 6890N GC

Question asked by amz123 on Nov 5, 2019
Latest reply on Dec 17, 2019 by james_jenkins

I am working with a G1888 headspace and don't understand how to set the vial pressure when using an EPC to control the pressure.  I am also looking for a manual that is comprehensive and also for the G1888 not for a newer model, does anyone know where to find a troubleshooting guide for the G1888?  The EPC is giving us a lot of trouble, I can't get the inlet to read anything besides .4psi for the pressure while the headspace reads 0.  I wanted to bypass the EPC and hook it up to the MPC but when I did that, the pressure on the headspace reads 0 for the vial pressure and for the carrier.  Before I switched to MPC vial pressure was reading 100psi which is what our regulator is set to, but when I hooked it up to the MPC it read 0 and didn't change no matter how I adjusted the valves on top.  If anyone has any good diagrams or literature it would be greatly appreciated or if anyone has any advice on how to troubleshoot this that would be awesome.