time elapsed from the application of an ideal step input to the time at which the output has entered and remained within a specified (error) band, aeg, mis on möödunud sisendi rakendamisest kuni ajani, mil väljund on jäänud kindlaksmääratud lubatava mõõtehälbe vahemikku, time interval between the instant when electrical power is applied to the flowmeter and when the response reaches specified limits