It must be possible to adapt the constant of the recording equipment to the characteristic coefficient of the vehicle by means of a suitable device, to be known as an adaptor.
Caithfear bheith in ann tairiseach an trealaimh taifeadta a oiriúnú do chomhéifeacht tréithe na feithicle trí bhíthin feiste oiriúnaí, a dtabharfar cuibheoir air.