Kanomax 4431 Instruction Manual page 41

Impulse sound pressure level(L
Impulse sound pressure level (L
characteristics, 'Impulse'.
It can be used only when A characteristics is selected in the default screen.
① Frequency weighting
key (A･C, Z)
⑤Measuring time key
②Display mode key
＜ ＜ ＜ ＜ Parameter setting ＞ ＞ ＞ ＞
Measurement is mede according to the following procedure
① Frequency weighting key ：A
② Display mode key
③ Time weighting key
④ Range key
【Method of selecting [Range] key】
＜ ＜ ＜ ＜ Display＞ ＞ ＞ ＞
Measuring time
Rec:Blinks during
recording
Stp: Holding state
AI
) is A-weighted sound pressure level with time weighting
AI
Press [Range] key, and choose by cursor keys▲▼, and press [Range] key
again to register.
１０ １０ １０ １０ｍ ｍ ｍ ｍ ０００ ０００ｈ ｈ ｈ ｈ ００ ０００ ０００
63.5 d 63.5 dB B B B 63.5 d 63.5 d
40 40 40 40
Stp Stp Stp Stp
) measurement
：L
A
：Imp
：Select a range where the bar graph indicates
approximately 2/3 of the full scale.
００ｍ ｍ ｍ ｍ ０５ ００ ００ ０５ ０５ｓ ｓ ｓ ｓ ０５
130 130
130 130
A A A A Imp L Imp L Imp L Imp L
A A A A
Time weighting： Imp
Frequency weighting ：A
40
③Time weighting
key
(F:Fast, S:Slow,
Imp: I mpulse)
④[Range] key
Display mode
L
A