ACO 6236, Instruction Manual, Page: 37 / 154

36
← Count-up timer for the measurement
← Starts with display ― . ― when the measurement
mode is tm5 .
Measurement value is displayed every 5 second.
←
The bar displays the instantaneous level in every
0.1 second.
← L
A
and tm5 can be changed.
Current level is displayed with L
A
selected value.
Power average value of the maximum sound pressure level in a given interval
(L
Atm5
) measurement
Power average value of the maximum sound pressure level in a given interval (L
A
tm5
) is power
average of the maximum value of A-weighted sound pressure level in successive 5-sec intervals.
It can be measured only when A characteristics is selected in the standard screen.
＜ Parameter setting ＞
Mode: Normal in < System>1/3 is changed to Mode:L
Atm5
with the ▲▼ key in Menu
screen. The screen for power average of the maximum value appears when the
change is fixed and resisted with Set key.
【 Method of selecting [Range] key 】
Press [Range] key, and choose by cursor keys ▲▼ , and press [Range] key
again to register.
Measurement is made according to the following procedure
① Frequency weighting key ： A
② Display mode key ： L
A
or tm5
③ Time weighting key ： F or S
④ Range key ： Select a range where the bar graph indicates
approximately 2/3 of the full scale.
⑤ Measuring time key ： 1s, 3s, 5s, 10s, 1m, 5m, 10m, 15m, 30m, 1h, 8h, 24h
and ＊＊＊ (input to the [Start/Stop] key)
The measurement starts with [Start/Stop] key.
＜ Display ＞
Press ［ Start/Stop ］ key
The Rec blinks with [Start/Stop] key input
<System> 1/3
Mode ：LAtm5
Data delete ：off
LCD cont
：＊＊＊
Date y/m/d ：01/01/01
Time h/m/s ：00:00:00
Printer(PC)set ：9600
USB out ：OFF
Measurement time 10s (second) display
00h00m00s
00h00m01s
00h00m02s
・
00h00m09s
← End in 10seconds
00h00m00s
← The following measurement
＊ When Menu Intr:Single is measured, it becomes Repeat
continuous work as the measurement time display.
１０ｓ ０００ｈ００ｍ００ｓ
－－．－ ｄＢ
40 LAtm5 130
６３．５
ｄＢ
40 LAtm5 130
１０ｓ ０００ｈ００ｍ００ｓ
＜ Menu ＞
Stp A Fast
L
A
Rec A Fast
L
A
③ Time weighting
key
( F:Fast, S:Slow,
Imp:Impulse)
① Frequency
weighting key
(A
･ C, Z)
⑤ Measuring
time key
② Display
mode key
④
[Range] key
Bar: Displays the current instantaneous level.
L
A
or tm5
Time weighting ： F, S