ACO 6236, Инструкция по эксплуатации

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6
Percentile level (L
AN
) measurement
＜ Parameter setting ＞
1) The key operation is similar to the measurement of A-weighted sound pressure level (L
Aeq
)
2) To display the value Lmax, keep the "LA05 ,LA10 ,LA50 ,LA90 ,LA95" key ON in advance
in the <View Mode> 3/3 screen.
① Frequency weighting key ： A,C or Z
② Display mode key ： L
N
(To display the percentile level (L
N
)
Measurement. ）
③ Time weighting key ： Fast or Slow (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)
3) The measurement starts with [Start/Stop] key.
＜ Display ＞
NOTE
The L
N
computation is made at
sampling rate 100msec, which
tends to influence the acculacy
in the condition of measureing
time less than 10sec.
１０ｍ ０００ｈ００ｍ０５ｓ
63.5 dB
40 130
Stp A Fast L05
Frequency weighting ： A,C or Z
Measuring
time
Time weighting ： Fast, Slow
Display mode
L05, L10, L50, L90, L95
Rec:Blinks during
recording
Stp: Halting state
<View Mode> 3/3
Lp :INST
(A)view
LA05 ： ON
LAeq ： OFF LA10 ： ON
LAE ： OFF LA50 ： ON
LAmin ： OFF LA90 ： ON
LAmax ： OFF LA95 ： ON
② Display
mode key
④ [Range] key
③ Time weighting
key
(
F:Fast, S:Slow)
⑤ Measuring
time key
2)[Menu] key
①
Frequency
weighting key
(A
･
C, Z)