I am having some problems with the stabilisation of my RID.
I have already applied the suggestions mentioned in previous questions:
I had to optical balance, but now the problems is that detector stays stabilized during ~10mins (green - Ready) and then turns yellow again. Opening the purge for around 2-3 mins makes the instrument ready again althought it doesn't last more than 10 mins.
Anyone can tell me what could be the problem please?,