[RASMB] error message: DAB radial rate failure

[José Ginés Hernández]

I am Jose G. Hernandez from the University of Murcia (Spain). We have a 
Beckman Coulter XL-I Ultracentrifugue. We were performing a velocity 
sedimentation experiment, measuring absorbance, at 3000 rpm. At the 
middle of the experiement, the software (ProteomeLab) gave the following 
message:

DAB radial rate failure

The machine continued working but  from that scan on the measurements 
were wrong (the position of the meniscus appeared displaced).

Some suggestion about causes and possible solutions?

Thanks for your attention

Jose G. Hernandez
Dep. Physical Chemistry
University of Murcia
30100 Murcia
Spain

tel: +34 868 88 7427