The choice of the operation settings is very important in order to obtain good quality data.
Normally slower settings will reduce the electronics noise and therefore it is possible to work at lower energies, but will saturate for high photon fluxes.
On the other hand, faster settings will allow to work with higher photon intensities without pileup, but not to access lower energies because of an higher electronics noise.
Therefore it is extremely important to chose adequate settings for the detector depending on the X-ray energy and expected maximum count rate.
In the following is a description of the energy and intensity range coverd by the different settings for each detector.