[Warnings] Agilent 8890 Front Inlet: Pressure Not Ready at Run Time

110170 4 months ago

Hi,

I recently find this problem, so I would like to know how to solve this.

When I run GC(Agilent 8890), then the same warnings come from.
It said, 'Pressure not ready at run time'.

So I checked the control box in front of GC machine, but the setpoint and acutal temperature, flow, and pressure.

How could I solve this warning situation?

Could you help me please?

0 110170 4 months ago

*but the setpoint and actual temp, flow, and pressure were fine I think.
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0 garyb007 4 months ago in reply to 110170

So it looks like this is right after an injection. This is not uncommon since the pressure will briefly change during an injection as the solvent vaporizes. Inlet parameters will determine how quickly it stabilizes. Watch the inlet pressure as it injects and see if it changes any. If this is a new error has any maintenance been done on the inlet lately?
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0 110170 4 months ago in reply to garyb007

You're right. It causes right after an injection.
That same errer still happens every single time, but that didn't make the machine shut down.
So I just keep watching,

If there is a solution that I can do for now?
Is is okay to keep that errors when machine works?

I recently 1) washed FID with acetone and air, 2) cut column, 3) fasten the inlet's ferrule.
Does that make inlet's pressure low?
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