Isotropised kinetic-helicity KHM analysis at tΩ_i = 700: Validity test O_Hk (black line) as a function of l along with the different contributing terms: the decay rate −∂_tS​_Hk (blue), the MHD cascade rate K_MHDHk (green), the Hall cascade rate K_HallHk (orange), and the pressure-strain rate $-{\Psi }_{\mathit{Hk}}$ (magenta). All the quantities are normalised to the effective total (cross-helicity) dissipation rate ϵ_Hc.