Operating time management law null

摘要

PURPOSE: To provide a centrifugal machine with the operating time easily controlled irrespective of the change in the time necessary for the acceleration as the sample and the revolving speed desired by the customer are changed. ;CONSTITUTION: A signal of a sensor 3 for detecting the speed of a motor 2 is inputted to a control circuit 4, the signal is compared with the data of a set revolving speed storage part 5 wherein the revolving speed Ns desired by the customer is stored, and the counting of the operating time is started from the time when both data coincide with each other.;COPYRIGHT: (C)1993,JPO&Japio