A-Weighted Sound Pressure Level（L - Kanomax 4431 Instruction Manual

A-weighted sound pressure level (L
Frequency weighting key A, C
①Frequency weighting key
(A･C, Z)
②Display mode key
＜ ＜ ＜ ＜ Parameter setting ＞ ＞ ＞ ＞
Measurement is mede according to the following procedure
① Frequency weighting key ：A or C
② Display mode key
③ Time weighting key
④ Range key
【Method of selecting [Range] key】
＜ ＜ ＜ ＜ Display ＞ ＞ ＞ ＞
１ １ １ １ ｓ ｓ ｓ ｓ
63.5 dB 63.5 dB
63.5 dB 63.5 dB
40 40 40 40
Stp Stp Stp Stp
Press [Range] key, and choose by cursor keys▲▼, and press [Range] key
again to register.
０００ｈ ｈ ｈ ｈ ００ ０００ ００ｍ ｍ ｍ ｍ ００ ００ｓ ｓ ｓ ｓ
０００ ０００ ００ ００ ００ ００
130 130 130 130
A A A A Fast L Fast L Fast L Fast L
A A A A
Time weighting：Fast, Slow or Imp
Frequency weighting：A or C
/L ) measurement： ： ： ：
A C
, L
：L
A C
：F, S or Imp
：Select a range where the bar graph indicates
approximately 2/3 of the full scale.
Display mode
L L
A or C
30
③Time weighting key
(F:Fast, S:Slow, Imp: Impulse
④[Range] key