Sigicom INFRA C12 - Drywall Trigger Level Examples; Plaster Trigger Level Examples

To Next Page

To Previous Page

Drywall:

• if the frequency is smaller than 4 Hz, a transient will be triggered

for a lower level than the selected Trigger level.

• if the frequency is between 4 Hz and 15 Hz, a transient will be

triggered at the selected Trigger level.

• if the frequency is larger than 15 Hz a transient is triggered for a

higher level than the selected Trigger level.

Plaster:

• if the frequency is smaller than 2.6 Hz, a transient will be

triggered for a lower level than the selected Trigger level.

• if the frequency is between 2.6 Hz and 10 Hz, a transient will be

triggered at the selected Trigger level

• if the frequency is larger than 10 Hz a transient is triggered for a

higher level than the selected Trigger level.

Example 1 (Drywall):

Suppose that selected trigger level is 0.75 in/s, which is equal to the

nominal level for Drywall. A transient will be triggered if a signal (peak)

is greater than:

• 0.38 in/s, if its frequency is 2 Hz

• 0.75 in/s, if its frequency is in the range 4 - 15 Hz

• 2.0 in/s, if its frequency is larger than 40 Hz

Example 2 (Drywall):

Suppose now that selected trigger level is decreased to 0.25 in/s

compared to Example 1. A transient will be triggered if a signal (peak) is

greater than:

• 0.126 in/s, if its frequency is 2 Hz

• 0.25 in/s, if its frequency is in the range 4 - 15 Hz

• 0.67 in/s, if its frequency is larger than 40 Hz

As can be seen, all three figures above are decreased to a third of the

values in Example 1. [

= $

%.'($)*/,

%.-($)*/,