arvuti või korrektsiooniseadmega ühendatud seade, mis on ette nähtud teatud veele iseloomulike suuruste mõõtmiseks, et teha parandeid ja/või teisendusi, measuring instrument connected to the calculator or the correction device for measuring a quantity, characteristic of water, with a view to making a correction and/or a conversion, device, connected to the calculator, the correction device or the conversion device, and converting,during the measurement the characteristic quantities (temperature, pressure, density, viscosity, etc.)of the liquid into signals destined for the calculator, with a view to making a correction and/or aconversion, mõõtevahend, mis on ette nähtud teatud suuruste mõõtmiseks, et teha parandeid ja/või teisendusi, instrument connected to the calculator or the correction device for measuring a quantity, characteristic of water, with a view to making a correction and/or a conversion, instrument for the measurement of a quantity, other than the measurand, the value of which isused to correct or convert a measurement result, mõõtevahend sellise suuruse mõõtmiseks, välja arvatud mõõtesuurus, mille väärtust kasutatakse mõõtetulemuse korrigeerimiseks või teisendamiseks, instrument for measuring certain quantities which are characteristic of the gas, e.g. temperature, pressure, or calorific value, whose indications are used by the calculator with a view to making a correction and/or conversion