The natural frequency and the damping of the measuring device must be such that the instruments showing and recording the speed can, within the range of measurement, follow acceleration changes of up to 2 m/s2, within the limits of accepted tolerances.
Caithfidh minicíocht nádúrtha agus maolú na feiste tomhais gur féidir leis na hionstraimí a léiríonn agus a thomhaiseann an luas, laistigh den raon tomhais, athruithe sa luasghéarú suas le 2 m/s2 a leanúint, laistigh de na teorainneacha lamháltais inghlactha.