calorimeter vs measuring system

calorimeter and measuring system both are nouns.

Word	Noun	Adjective	Verb	Adverb
calorimeter	Yes	No	No	No
measuring system	Yes	No	No	No

As nouns, measuring system is a hypernym of calorimeter; that is, measuring system is a word with a broader meaning than calorimeter:

calorimeter: a measuring instrument that determines quantities of heat
measuring system: instrument that shows the extent or amount or quantity or degree of something

Other hypernyms of calorimeter include measuring device, measuring instrument.

calorimeter (noun)	measuring system (noun)
a measuring instrument that determines quantities of heat	instrument that shows the extent or amount or quantity or degree of something