FIELD: measuring equipment.
SUBSTANCE: main system, remote from signals generator, included in composition of measuring electronics of Coriolis flow meter together with it, periodically sends a request for authentication information to user. Main system processing block receives authentication information, sent by signals generator, stores it in memory and on basis of comparison of record with source authentication information, generates signal, pointing out, whether unlawful manipulations took place. Authentication information has, in particular, calibration data of signals generator. Generator power and transfer of data from it is performed by four-wire cable.
EFFECT: device does not require additional memory and real-time hours, to facilitate use under conditions of heightened hygienic measures.
2 cl, 6 dwg
