for an instrument/a recorder which needs an auxiliary supply the mechanism by means of which the instrument may by adjusted so that the lower/upper limit of the measuring range coincides with the appropriate scale mark, lisatoitega mõõtevahendi mehanism, mille abil saab näidikut reguleerida nii, et mõõtepiirkonna alumine/ülemine piir langeb kokku sobiva skaalamärgiga
