Elevator Earthquake Seismic Sensor

An elevator seismic monitor is a device used in conjunction with an elevator control system to enable an elevator to effectively enter controlled operation before or during an earthquake. Before the arrival of the earthquake, the elevator seismic monitor detects the seismic wave in advance, and outputs the alarm contact to control the elevator control system to make the elevator open the door at the near floor level, release the passengers in the elevator, save the life safety of the passengers, and ensure that the elevator equipment is not damaged. The system has the following advantages: (1) High-precision, low-noise seismic data acquisition; (2) Fast and accurate judgment of seismic events; (3) Two-stage trigger signal output. The instrument has three contact outputs, namely, the first alarm contact output, the second alarm contact output and the fault contact output, which are respectively connected to the elevator related system for the elevator system to operate and collect control signals.