reasonable device, safety,automatic-control,competitive price Function:The DX8BD400 is an X-ray diffractometer use for the orientation of all single ... , low x-ray emission, automatic shutter, the switch on x-ray tube and temperature button, high voltage and x-ray is interlocked X-ray tubevb n ... to the rotary table. Turn on the x-ray tube, under x-ray Asis X is adjusted to the optimum position, then ...