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- Posts: 64
- Joined: Sat Dec 14, 2013 4:14 pm
My Agilent Binary pump 1312A keeps going into error mode (Red Light) after reporting high pressure (exceeding 400 bar).
I tried to identify if there was a blockage some where in the flow path. I figured out that the moment I screw on the column to the capillary, the pressure goes up drastically and the system shuts down. This could be due to some blockage in the column, so I replaced it with a brand new column. However this made no difference !
If I remove the column and simply pump through the capaliries, every thing looks fine.
I am pumping with Iso-prop at 5ml per min and max allowed pressure of 400 bar.
I would be obliged if some one could give a pointer towards a the possible reason ?
Also, I noticed that the moment that I close the purge valve with the column screwed onto the flow capillary, the pump starts to me