Complex sentence: One type of instrument used to get the abrasion rate and normalized abrasion rate is the abrasion scrub tester, which is made up of a mechanical arm, liquid pump, and programmable electronics.
Split into simpler sentences: One type of instrument used to get the quantities "abrasion rate" and "normalized abrasion rate", is the abrasion scrub tester. This instrument is made up of a mechanical arm, liquid pump, and programmable electronics.