ACO 6236 - Peak ) Measurement

34
Z-weighted peak sound pressure level (L
peak
) measurement
The peak sound pressure level is peak sound pressure level of the sound wave before
smoothed with the time weighting characteristics.
L
peak
is wavy peak level of Z characteristic.
＜ Parameter setting ＞
Measurement is made according to the following procedure.
① Frequency weighting key ：Z
② Display mode key ：Peak
③ Time weighting key ：F, S or Imp
④ Range key ：Select a range where the bar graph indicates
approximately 2/3 of the full scale.
【Method of selecting
[Range]
key】
Press
[Range]
key, and choose by cursor keys▲▼, and press
[Range]
key
again to register.
⑤ Measuring time key ：1s, 3s, 5s, 10s，1m，5m，10m，15m, 30m，1h, 8h, 24h
and ＊＊＊(input to the
[Start/Stop]
key)
The measurement starts with
[Start/Stop]
key.
＜ Display ＞
Measuring
time
Rec:Blinks during
recording
Stp: Holding state
１ｓ ０００ｈ００ｍ００ｓ
63.5 dB
40 130
Stp Z Fast Peak
Display mode
Peak
Time weighting：Fast, Slow or Imp
Frequency weighting : Z
②Display
mode key
④
[Range]
key
③Time weighting
key
(
F
:Fast,
S
:Slow,
Imp
: Impulse)
①Frequency
weighting key
(A･C, Z)
⑤Measuring
time key