Sorry, that difference should be made clear.
In the meter preferences where it says MAX, 1s, 10s and 1m, those are logging intervals. So if you leave it unattended with an SD card in and LOGGING set to “on” it will wake and take a sample every 1s, 10s, 1m.
The 125Hz, 250Hz, 500Hz setting is for the sample frequency with which the meter fills its internal sample buffer in RAM. The user should not need to mess with this setting, but some power users who use the “buffer mode” a lot like having manual control over it.
Hope this helps, best