We had a beam starting run 3328.
We run with ND prescaled starting 3329.
It appeared that we had a for Beam Charge Assymmetry out of range
measurements abs(a)>100ppm
At the begining, the raster
adjustment studies began with empty target.
Then BB DC high Voltage tuning with He3 target.
During run 3338
the DC Chamber 2 trip occured.