BenjA wrote:
Hi,
I am using the magnetic stirred recommended in the manual, but it doesn’t stir properly. It seems to start shaking without rotating for 10 to 20 seconds in each cycle, before it settles and stir properly. I try different stirrers (from the same model) and the problem is consistent. It set at 0.4, if I try higher rates, the problem persist. Any way I can fix it?
Bests!
Hi BenjA – if it is stirring properly for some of the period that is probably a good sign, and note that the device turns OFF stirring for 10-20 seconds each minute to take measurements.
You might have a bad batch of stirrers. Or, you could try running with a larger model of stirrer (e.g. something with a stronger magnet) that is less likely to bounce.
The other thing you could try is reducing the rate at which the chibio ramps up stirring in the code – currently when you activate stirring it goes to an intermediate speed for a while, but you could make this longer/slower so it is more settled.
.
