What does the Lamp Anode Voltage trace (HPLC-DAD) actually show?

It probably shows the tension that lamp anode is getting. Have you tried replacing the lamp?

Thanks for your reply, that was my first thought...unfortunately our kits are separately maintained and there is pushback when it comes to replacing parts like lamps if they pass lamp intensity tests. Unfortunately this issue keeps happening and we need sufficient external evidence to present until a replacement can be actioned.  

Thanks for your reply, that was my first thought...unfortunately our kits are separately maintained and there is pushback when it comes to replacing parts like lamps if they pass lamp intensity tests. Unfortunately this issue keeps happening and we need sufficient external evidence to present until a replacement can be actioned.  

Maybe run Noise and Drift Test on Lab Advisor? That will give you the evidence you need. Also, If it is not the lamp, it could be the mainboard