FLC2800 special functions(patents)

详情

1, For meters which are used in trading settlement between senders and receivers, data protecting function can be opened. The first protection is that, using double password setting of senders and receivers, only when both of the passwords are input respectively, can the data parameters be set(as if there are two software keys). The second complete protection is that, once one of them reveals the password or one password is stolen in other ways, it still can bring about a problem of illegal data ***** incident record function can be opened, so that if any parameter is modified(saved confirmed), the incidents can be recorded including the time and counts, and this record can never be deleted by ***** after both sides assure the incidents count record, and the count is not admitted by both sides, it can be sure that someone has illegally set the data, and the modifying time can be searched. 2, When meter for trading settlement is off electricity or on error, it can bring about lose of flow ***** most of manufacturers home and abroad have set record function of flowmeter totalizer when off electricity of its own body, which makes sure that the meters are just and fair.But for attended flow transmitter off electricity or offline, the function can&#**9;t recognize this, and the history record during this time is ***** is deemed to be normal in uncontinual flow using occation.However, the record function of flowmeters off electricity or on error can correctly judge the two situations of the zero flow, and it also can find out if the zero flow is caused by flow transmitter on error, and takes records of the time when this happens and when it ***** record can&#**9;t be deleted forever by users either. 3, In the flow measurement system, compensation meter has the same important status as ***** compensation pressure or temperature meter goes wrong, not handled in time, even though t