Posted: Mon Jan 05, 2009 7:20 pm
It certainly looks like a pumping system failure!So is my assumption correct?
Depends on what kind of system you have. One general possibility is that it's a failure of the controller (electronics? software?).If so, how can the problem be fixed?
If it's a "two-pump" (also called "high-pressure-mixing" system, the problem could be a failure of the "B" (strong solvent) pump (lost prime? check valve problem?), although in that case I would expect to see t0 shift by 20%.
If it's a "one-pump" (also called "low-pressure-mixing" system, the problem is most likely a malfunctioning proportioning valve.
Your best bet would be to contact the manufacturer and get qualification test procedures to track down the problem.