I’m testing two Pioreactors for an experiment to cultivate bacteria at 200 rpm and 30°C, but the stirring randomly stops on both units and then resumes shortly after. The message that appears is “Stirring rpm is 0 - attempting to restart it automatically. It may be a temporary stall, target RPM may be too low, insufficient power applied to fan, or not reading sensor correctly.”
I’m using the 20mL v1.1 with the software version 25.5.1
Hi @almironeto, 200 might be a bit low for the stirring fan - it might stall at lower RPMs. Can you try 250 RPM and see if that fairs better?
I stil got this problem at 250 RPM. The only RPM that this problem does not happen is at 500 RPM but this would be too high.
hm, can you try increase the gap between your top-faceplate and vial holder. That is, slightly unscrew the four 30mm M3 screws to add ~1mm of distance. That will increase the gap. I suspect that the magnets are too close to the heater PCB.