ACO 6226NW Waterproof Sound Level Meter

 Applicable Standards 
+ JIS C 1502
+ IEC 651・804Type2
Measurement Level: 28~130dB(A)、33~130dB(C)、38~130db(F)
Frequency Range: 20Hz~10kHz (Conforms with measurement law:20Hz~8kHz)
Microphone Type: TYPE 7052NW(Waterproof 1/2" electret condenser microphone)
Level Range: 10dB step, 6 stages
Linearity range: 100dB
Time weighting: FAST、SLOW、IMPULSE
Frequency weighting: A、C、FLAT
Measurement items: 
+ Sound pressure level(Lp)
+ Equivalent continuous sound pressure level(Leq)
+ Sound exposure level(Le)、Maximum sound pressure Level(Lmax)
+ Minimum sound pressure level(Lmin)
+ Percentile sound pressure level(Lx, 5 freely selectable values)
+ C-weighted Peak Sound Pressure level(LCPeak)
Measurement time: 1s,3s,5s,10s,1min,5min,10min,15min,30min,1h,8h,24h,Manual(Max.199h59m59s)
Sampling Time: 20.8μs(Leq)、10ms(Lmax、Lmin)
Lx Sampling Time: 100ms
Display: Liquid crystal and Backlight(128×64 points)
Digital display 
+ Display range:4digit display
+ Display cycle:display Period: 1s
Bar display: Display Period:0.1s
Warning 
+ Over;+3dB from upper limited scale
+ Under;-0.6dB from lower limited scale
Battery display: Battery 4 steps display
Built-in memory: Calculated value is memorized in memory. (Approx.10,000 samples:1000 sets of results)
Built-in calendar: year/month/day/hour:minute:second
Pause: Pause and a function that deletes preceding 3 or 5 sec Data
Calibration signal: Electric calibration with internal oscillator(1kHz sine wave)
AC output Output:1Vrms(F.S)、Output impedance:600Ω、Load impedance:more than 10kΩ
DC output Output:2.5V(F.S)、0.25V/10dB、Output impedance:50Ω、Load impedance:more than10kΩ
I/O: 
+ Interface:RS-232C(asynchronous)
+ data bits:8bits
+ stop bit:1bit
+ parity:none
+ baud rate:4800, 9600, 19200bps(for printing, computer control and data transfer.)
Battery Type: 
+ Four 1.5V size-AA batteries
+ Consumption current;When AC adaptor is used ;Approx.2.1VA
Battery life: Alkaline batteries:20 hours, Manganese batteries:10 hours
when switch on a back light;Approx.1/3
Operating temperature: Temperature:-10~50℃ Humidity:Unlimited
Size: 85(W)×284(H)×46(D)
Weight: Approx.420g(including Batteries)

Detail
Product Outline
 Our new product TYPE 6226NW is a "waterproof sound level meter" with included extension cable, realized by particular kind of waterproof technology newly developed.
It guarantees trouble-free measurement even under rainy condition.


New development
Dedicated waterproof microphone
  Due to the function of special filter which lets air and sound through preventing water from coming in, it allows to continue the measurement despite of drops of water on the top of the microphones after they are dried up.
The diaphragm or preamplifier would never be waterlogged or rust out.


They can be used outdoor.
・ Outdoor noise measurement under the condition of rainfall.
 (Aircraft noise, traffic noise, environmental noise)
・ Outdoor measurement of noise of running vehicle and measurement of engine room noise.
・ Noise level measurement in factories with steam generation
・ Environmental noise measurement at an indoor swimming pool or an aquarium.
・ Measurement of leisure cruiser noise or motorboat noise.


Measurement fruquency range
TYPE 6226NW is provided with newly developed waterproof
electret condenser microphone TYPE 7052NW, composed of
time-tested high precision electret condenser microphone
TYPE 7052 equipped with specified waterproofed grid.

The measurement frequency range is 20Hz~10kHz

TYPE 6226NW is conformed to JIS C 1502, and IEC 651・804 Type2.
The measurement frequency range of "sound level meter" specified in
JIS C 1502 is 20Hz~8kHz.

Linearity range
Linearity range is 100dB.
Extended range has made the setup of sound level meter quite easy.

Measurement items
A-weighted sound pressure level(LA)
The LA Measurement is made by selecting dynamic characteristics
"FAST"or "SLOW", and frequency characteristics "A".

The instantaneous sound level is displayed on the screen.
Numerical display is updated for "every second" and bar display
"every 0.1 second".

Sound pressure level(LC/LF)
The LC/LF Measurement is made by selecting dynamic characteristics
"FAST" or "SLOW", and frequency characteristics "C" or "F".

The instantaneous sound level is displayed on the screen.
Numerical display is updated for "every second" and bar display
"every 0.1 second".

Equivalent continuous A-weighted sound pressure level(LAeq)
The LAeq is Measurement is made by selecting dynamic characteristics
"FAST" or "SLOW", and frequency characteristics "A".
Measuring time can be chosen from
1 second, 3 seconds, 5 seconds, 10 seconds, 1 minute, 5 minutes,
10 minutes, 15 minutes, 30 minutes, 1 hour, 8 hours, and 24 hours.
Manual measurement is also possible.
During measurement, if the "Pause" button is pushed, the data for
3 last seconds or 5 seconds can also be deleted.
   
The progress value of LAeq is displayed on a display.
Percentile sound pressure level(LX)
Preparations of a noise level and an equivalent noise level are made.
「Start」KEY is pushed.
  
Percentile sound pressure level (L05, L10, L50, L90, L95),
Sound exposure level (LAe),a A-weighted sound pressure level (LA),
an equivalent continuous A-weighted sound pressure level (LAeq),
Maximum sound pressure level (Lmax), and minimum sound pressure
level (Lmin) are simultaneously measurable.




Data saving and PC communixation function
Memory function
Approx.10,000 samples : 1000 sets of results.

Calendar function
Built-in clock and calendar function installed.

Output signal
Provided with AC and DC signal output.
DAT recorder and level recorder can be connected.

The data recorded in the memory can be printed out by connecting a dedicated printer.

PC communication function
RS-232C function is equipped.
The data recorded in the memory can be transferred to PC in real time even under
the measurement.

Data communication is possible with all kind of computers with RS-232C function.


Sensor

Operation panel

Operation panel

Outside carrying case

Inside carrying case

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