Product collection when the earthquake ground X/Y/Z three of the direction of ground motion acceleration, accurate detection of the earthquake happened, when P wave arrived acceleration sensor detected early earthquake of vertical vibration then output corresponding electric signals, through the filter and amplification by Analog to Digital Converter for microprocessor processed. When S wave arrival, acceleration sensors to detect the horizontal vibration, and output corresponding electric signals, through the filter and amplification by Analog to Digital Converter for microprocessor processed.
The instrument has two road relay output, respectively is level 1 alarm output, level 2 alarm output, access the elevator control system respectively, for the elevator control system collection. Level 1 alarm output is instruments detected early earthquake P wave or low vibration acceleration of earthquake movement after output, is a low-level output, used to judge may be happen earthquake, after Level 1 alarm relay action, if in 10s inside not have to achieve the Level 2 alarm ground vibration signal, the product to be automatic reset, and contacts signals disappear. Level 2 alarm output corresponding higher ground motion of the output of the acceleration, can't automatic reset, and need professional elevator operator to inspection elevator, and after confirm the elevator without any fault then manually reset.
