Cpeak ）Measurement - Kanomax 4431 Instruction Manual

C-weighted peak sound pressure level (L
The peak sound level is peak sound pressure level before smoothed with the time weighting
characteristics.
Lcpeak is wavy peak level of C characteristic.
① Frequency weighting
key (A･C, Z)
⑤Measuring
＜ ＜ ＜ ＜ Parameter setting ＞ ＞ ＞ ＞
Measurement is mede according to the following procedure
① Frequency weighting key ：C
② Display mode key
③ Time weighting key
④ Range key
【Method of selecting [Range] key】
⑤ Measurement time key
The measurement starts with [Start/Stop] key.
＜ ＜ ＜ ＜ Display ＞ ＞ ＞ ＞
Measuring time
Rec:Blinks during
recording
Stp: Holding state
・ Measurement starts with [Start/Stop] key pushed, and ends up automatically at the
measurement time. Digital display indicates the halfway result at the current point of time.
( Display " Rec " blinks while the measurement.)
・By pushing [Start/Stop] key in course of the measurement, calculation is done using the data
so far.
・When *** is selected, the final data is calculated and displayed only when [Start/Stop] is
pushed or 199 hours have gone through.
time key
②Display
mode key
Press [Range] key, and choose by cursor keys▲▼, and press [Range] key
again to register.
１０ｍ ｍ ｍ ｍ ０００ １０ １０ １０ ０００ ０００ｈ ｈ ｈ ｈ ００ ０００ ００ ００ ００ｍ ｍ ｍ ｍ ０５
63.5 dB 63.5 dB
63.5 dB 63.5 dB
40 40 40 40
Stp Stp Stp Stp C C C C Fas Fast Peak Fas Fas
) measurement
Cpeak
：Fixed to Peak
：Any of F, S or Imp
(doesn't influence the measurement.)
：Select a range where the bar graph indicates
approximately 2/3 of the full scale.
：1s、3s、5s、10s，1m，5m，10m，15m、30m，1h、8h、24ｈ
and＊＊＊(input to the [Start/Stop] key)
０５ｓ ｓ ｓ ｓ ０５ ０５
130 130
130 130
Display mode
t Peak t Peak t Peak
Peak
Time weighting：Any of F, S or Imp
(doesn't influence the measurement.)
Frequency weighting ：C
37
③Time weighting
key
(F:Fast, S:Slow,
Imp: I mpulse)
④[Range] key