1) Firstly observe the background, the first ring height should be within the prescribed range, such as winner2000ZDE laser particle size analyzer, background of the first ring should be around 400, the second ring height should be significantly lower than the first ring, other rings height should be smooth and continuous, the background of the ring signal is without obvious wave.
( figure 1-Winner2000ZD benchmark view)
2) The powder sample is added to sample tank, observe whether the instrument can respond quickly to the spectrum signal, the spectrum can be continuous, and there is no fluctuation.
3) With the self-test system of the instrument, the self-test system will automatically detect the state of the instrument, and gives operating tips. For winner automatic laser particle size analyzer, there is automatic optical alignment system, precisely and fast make optical system be normal.
(figure 2- Optical path automatic alignment system)