ACO Waterproof Sound Level Meter, Model 6226NW
It can be used at the site to be expected as high-humidity environment with rain or sheet of spray.
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.
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.
- 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.
Specification
Applicable Standards : JIS C 1502, IEC 651 804 Class ll
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 : 20.8us (Leq), 10ms (Lmax, Lmin)
Lx Sampling Time : 100ms
Display : Liquid crystal and Backlight (128×64 points)
Digital display : Display range : 4 digit 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
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 o C Humidity : Unlimited
Size : 85(W)×284(H)×46(D)
Weight : Approx.420g(including Batteries)
