Chromatography Forum

Posted: **Mon Jan 11, 2010 3:07 pm**

Hello,
We are trying to connect a manometer to the split/splitless inlet to test for pressure decay and are having a very difficult time making the actual physical connection. Has anyone done this? If so, what sort of tubing/connectors/reducers have you used? Our GC is an Agilent 6890. Thanks!

Posted: **Mon Jan 11, 2010 4:42 pm**

You should be using either the pressure sensor that is built into the EPC version of the 6890 capillary inlet or the pressure guage that is built into the non-EPC version of the capillary inlet. There should be no need to connect a manometer.

Gasman

Posted: **Mon Jan 11, 2010 6:40 pm**

If for some reason you don't want to use the system pressure gauges/sensors as Gasman is suggesting, you can simply come up with one like that shown in the link below using a spare pressure gauge you have in your lab.

http://www.discoverysciences.com/product.aspx?id=2254

Posted: **Tue Jan 12, 2010 7:38 am**

I would be really interested to hear why you want to do this

Peter

Chromatography Forum

Manometer connection for inlet pressure testing

Manometer connection for inlet pressure testing