arvesti sisemised elektrilised ühendused, osa mõõteelemendist või, staatilise arvesti korral, toiteahela osad, mida toidetakse pingega ahelast, kuhu arvesti on ühendatud, internal connections of the meter, part of the measuring element and, in the case of static meters, part of the power supply, supplied with the voltage of the circuit to which the meter is connected, circuit of a measuring instrument to which is applied the voltage of the circuit to which the measuring instrument is connected, measuring circuit to which is applied a voltage which is a prime factor in determining the indication of a measured quantity, mõõteahel, millele rakendatakse pinget, mis on mõõdetud suuruse näidu määramisel peamine tegur, measuring circuit to which is applied a voltage which is the prime factor in determining the recording of the measurand