Division 2.5 System requirements

The data system shall have a resolution of 12 bits (± 0,05 %) or more and an accuracy of 2 LSB (± 0,1 %). Anti-aliasing filters shall be of order 4 or higher and the relevant data range f_max shall be 0 Hz to 30 Hz.

For fourth order filters the pass-band frequency f_o (from 0 Hz to frequency f_o) shall be greater than 2,37 × f_max if phase errors are subsequently adjusted in digital data processing, and greater than 5 × f_max otherwise. For fourth order filters the data sampling frequency f_s shall be greater than 13,4 × f_o.