Patent ID: 8210054

Claim:
Method for installing and operating a mass flowmeter operating according to the Coriolis principle having a measuring tube, comprising the steps of: exciting the measuring tube to vibrate, determining a phase shift of the vibration of the measuring tube which is dependent on the mass flow of the measuring tube or a time difference (t d ) corresponding to said phase shift, determining the temperature of the measuring tube, and calculating the mass flow using the determined phase shift or time difference (t d ) and the determined temperature (T) by means of a computation rule wherein, in using the computation rule, at least one known theoretical or empirical material temperature dependence (K T ) influencing the mass flow is taken into account, wherein, considering known theoretical or empirical material temperature dependence (K T ) influencing the mass flow, a device-specific temperature dependence (e) of the mass flowmeter influencing the mass flow is determined through a subsequent calibration process and wherein, in the computation rule, the known theoretical or empirical material temperature dependence (K T ) as well as the device-specific temperature dependence (e) are taken into account in determining the mass flow.