Earthquake Sensor (SW-72R and SW-74SI)

Earthquake Alarm/Monitoring System

The Earthquake Alarm/Monitoring System is composed of two major equipment and these are:

• SW-72R Seismic Monitor
• SW-74SI Seismic Processor

SW-72R Seismic Monitor	SW-74SI Seismic Processor

  

SW-74SI which is equipped with 10-step alarm output and SI value output is an advanced version of the model SW-74.

SW-72R is the device that actually measure the ground intensity and shows the value in gals. It can operate with or without the SW-74SI. However, for alarm and recording purposes, SW-74SI is required.

The SI value, known as “velocity response spectrum”, is one of the standards that is used to express the earthquake's destructive power against structures, i.e. buildings, infrastructures, etc.

How does it provides an alarm for the earthquake activity?

The integrated units (i.e. combined SW-72R and SW-74SI) when combined, will allow us to know of the on-going earthquake eventhough we haven't feel it. This piece of tool shall provide us ample time to take cover for safety.

Below are some configuration data that can be used to program the unit so it will provide the alarm (either bell, or voice announcement) depending on the earthquake Intensity.

Why do we need use this equipment?

We need the equipment for our safety. The equipment is capable of providing the necessary alarm or announcement so we can react accordingly similar to the ones used by Fire Alarm.

With this alarm, we will be able to know that the earthquake is happening.