BRUEL & KJAER 2225 - Page 21

Fig .4 .3.
DDDDDODOOODODDDODODDDDDC
Bru el & Kja"
dB (A) -- "Siow" -- Paper Speed
0,3 mm/s
:=
== 70
::::::::::: 60
== 50
:=:::::;: 40
= 30
QP 0 1 02
100 200
Time ( s) 7 8084 2
ODDOODDDDDDODDOODOOD DDDC
Br ue l & Kjrer
~ dB (A) = "Impulse"= Paper Speed
0,3
mm/s :=
70
1== 60
f------- 50
40
30
QP 0 1 02
100
200
Time is)
78084 1/ 1
Examples of office noise recorded on the Portable Level Re-
corder Type 2306 using the various functions of the 2225
and 2226
15