More to come...

​- How to setup Geophone and Microphone
Ans: 
The sensor should be placed on or in the ground on the side of the structure towards the Vibration Source. A structure    can be a house, pipeline, Building, Tunnel, Bridge etc. Measurements on driveways, walkways, and slabs are to be avoided where possible. Typical practice is to point the longitudinal/radial channel towards the blast site/Vibration source. 
Spiking, burial, or sandbagging, bolting of the geophone to the ground may be appropriate.
The microphone should be mounted near the geophone with the manufacturer’s wind screen attached and microphone may be placed at any height above the ground, If placed too close to a structure, the air overpressure may reflect from the house surface and record higher amplitudes..

- What is the best distance to install the Geophone between the Vibration source and Monitor point?
Ans: 
​The sensor should be placed within 3.05 meters (10 feet) of the structure or less than 10% of the distance from the Vibration source, whichever is less.

- How to calculate Peak vector sum (PVS)mm/s?
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- What is the distance/How far of the vibration can be detected by Geophone?
Ans:
It's base on how strong of the vibration can be travel to reach the Geophone.
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- How long of the Vibration monitor/Seismograph need to re calibrate?
Ans:
Recommended Once in a year

- Malaysia Standard For Vibration Limit Guideline 
Ans: 
​DIN4150 Download File