Measurement - Kanomax 4431 Instruction Manual

Impulse equivalent continuous A-weighted sound pressure level (L

measurement

Impulse equivalent continuous A-weighted sound pressure level (L
continuous sound pressure level with time weighting characteristics, 'Impulse'.
It can be used only when A characteristics is selected in the default screen.
① Frequency weighting
key (A･C, Z)
④Measuring time key
⑤Display 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
Press [Range] key, and choose by cursor keys▲▼, and press [Range] key
again to register.
１０ １０ｍ ｍ ｍ ｍ ０００ １０ １０ ０００ｈ ｈ ｈ ｈ ００ ０００ ０００
63.5 dB 63.5 dB 63.5 dB 63.5 dB
40 40 40 40
Stp Stp
Stp Stp
：Leq
：Imp
：Select a range where the bar graph indicates
approximately 2/3 of the full scale.
００ｍ ｍ ｍ ｍ ０５ ００ ００ ０５ｓ ｓ ｓ ｓ ０５ ０５
130 130
130 130
A A A A Imp Leq Imp Leq
Imp Leq Imp Leq
Time weighting： Imp
Frequency weighting ：A
41
AIeq
) is equivalent
AIeq
③Time weighting
key
(F:Fast, S:Slow,
Imp: I mpulse)
④[Range] key
Display mode
Leq
)