Calculate the PPV using the below stated blast parameters and discuss:

$-$ How and where you would anchor the sensor of the seismograph and at what settings would you set the trigger levels.

$-$ The documentation required and what you would complete prior to and after the blast.

$-$ How would you test the seismograph prior to the blast

Blast Parameters:

The ground vibration and air blast are monitored at $230$ m from the blast.

Burden $=5\mathrm{.}2$m$,$ spacing $=6$m$,$ bench height $=10$m$,$ hole diameter $=172$mm$,$ sub$-$drill $=1\mathrm{.}0$m$,$ explosives density $=1\mathrm{.}15($g$)/($c$)$c$,$ stemming length $=2\mathrm{.}4$m and the timing $=42$ millisecond inter row, and $100$ millisecond intra row, closed V$1$ chevron. The free face is towards the north and the farmhouse is situated to the southwest behind the blast.