Sound Level Meter TYPE-6236Precision Sound Level Meter TYPE-6238
On-site measurement of environmental noise is strongly expected to have high resolution and real-time analyzing function on the spot. Moreover, in the field of product development such as car parts electric appliances, etc., it is required to measure and analyze the sound of ultra-low level more accurately, corresponding to the rise of consciousness that the acoustic characteristics such as silence, tone quality, etc., should be the part of the product, which is deeply related to our human hearing sensation. The function of TYPE6236/TYPE6238 can be extended quite easily to those such as measurement of various parameters for environmental noise, only by inserting option FFT Analysis Card into the card slot. Also, this equipment is provided with newly developed ¡°0-dB function¡± for measuring ultra-low sound pressure level, symbolizing the next-generation sound level meter with extremely high resolution and reliability.
By employing the original DSP technology, which eliminates the self-noise of the microphone with preamplifier, the lower limit of measurement has been drastically extended to lower than 0 dB-SPL. Linearity range, extended to 100 dB in the usual state, further expands to that corresponding to the measurement range 0¢¦80dB(A) by holding the 0-dB function in ON position.
It enables to measure ultra-low sound pressure level, so displaying its greatest power as in the quietness measurement of, or tone quality evaluation of, various silent-type IT/OA equipments, as well as in the measurement of air-conditioning noise or sound isolation in a concert hall with ambient noise below NC-20.
¡ØTechnology relating to ¡°0-dB measurement function¡± is the fruit of joint research work with Shizuoka University.
Replacing the card with SD card (option) enables to add the specified analyzing function to TYPE6236.
£1/1 and 1/3-octave Real-time analysis card
£FTT analysis Card
£RSR card (Real Sound Recording Card)
In response to your great deal of needs, the function of displaying NC-bar with evaluated NC index finally equipped!!
By inserting "1/1 and 1/3-octave Real-time Analysis Card" in TYPE6236/TYPE6238, evaluated NC index is displayed in real time, empowering the evaluation of on-site noise measurement.
TYPE6236/TYPE6238 is equipped with high precision electret condenser microphone(TYPE7052NR/TYPE7146NR) which ACO is most proud of. The measurement frequency range covers entire audible frequencies,TYPE6236:20Hz¢¦20kHz,TYPE6238:5Hz¢¦20kHz.
"Microphone has a image of breakable object needing frequent replacement"
Such an image is broken down by ACO microphone of highly anti-shock capability,developed through lengthy research and development work. ACO Microphones,clearing various strength tests,delivers the customers from very delicate handling of the microphone,offering the environment focused on sound measurement.
SLS101
SLF101
Sound Level Meter
Precision Sound Level Meter
JIS C1509-1:2005 Class¥± IEC 61672-1:2002 Class ¥±
JIS C1509-1:2005 classI IEC 61672-1:2002 ClassI
20Hz¢¦20kHz (Conforms with measurement law 20Hz¢¦8kHz)
5Hz¢¦20kHz (Conforms with measurement law 20Hz¢¦12.5kHz)
TYPE 7052NR (-33dB,Stand-alone -31dB)
TYPE 7146NR (-29dB,Stand-alone -27dB)
A:28¢¦130dB (0¢¦80dB/0-dB measurement function in ON) C:36¢¦130dB Z(FLAT):40¢¦130dB C peak:55¢¦141dB Z(FLAT)peak:60¢¦141dB
A:28¢¦130dB (0¢¦80dB/0-dB measurement function in ON) C:37¢¦130dB Z(FLAT):39¢¦130dB C peak:55¢¦141dB Z(FLAT)peak:60¢¦141dB
The lower limit of the measurement range in dB lies 6dB higher than self-noise level.
The lower limit of the measurement range in dB lies 8dB higher than self-noise level.
10dB 6step 20¢¦80dB¡¢20¢¦90dB¡¢20¢¦100dB 20¢¦110dB¡¢30¢¦120dB¡¢40¢¦130dB (0¢¦80dB£¯0-dB measurement function in ON)
100dB
Fast¡¢Slow¡¢Impulse
A¡¢C¡¢Z(FLAT)
Sound pressure level(L p ) A-weighted sound pressure level C-weighted sound pressure level(L A /L C ) Equivalent continuous A-weighted sound pressure level(L Aeq ) Sound Exposure level(L AE ) Maximum sound pressure level(L Amax ) Minimum sound pressure level(L Amin ) Percentile sound pressure level(5 freely selectable values¡¢L AN ) Peak Sound Pressure level(L peak ) C- weighted Peak Sound Pressure level(L Cpeak ) Power average of maximum sound pressure level in a given interval(L Atm5 ) Impulse Sound pressure level(L AI ) Impulse equivalent continuous sound pressure level(L AIeq )
1s/3s/5s/10s/1min/5min/10min/15min/30min/1h/8h/12h/24h Manual(Max. 199h59m59s)
20.8¥ìs(L eq ¡¢L max ¡¢L min )¡¢100ms(L N )
Pause, and a function that deletes preceding 3 or 5 sec. dat Memory start£»Selectable Auto or Manual
A marker can be set to start and stop the measurement at any specified moments.
Liquid crystal and Backlight(128¡¿64 points)
Display range:4digit display Display cycle£ºdisplay Period: 1s
Display Period:0.1s
Over£»+3dB from upper limited scale Under£»£0.6dB from lower limited scale
Battery¡¡5 ste£ðs display
year/month/day/hour£ºminute£ºsecond
ormal pause function, as well as the function of canceling the data before pausing the measurement, are available.
Electric calibration with internal oscillator (1kHzsine wave)
¥õ2.5Jack Output£º1Vrms(FS) Output impedance£º600¥Ø Load impedance£ºmore than 10k¥Ø
¥õ2.5Jack Output£º2.5V(FS) 0.25V/10dB Output impedance£º50¥Ø Load impedance£ºmore than10k¥Ø
True RMS detection circuit£¨computing type£©
Digital
Sound pressure level or Processed values stored in built-in Memory or Memory card Manual Storage£ºSound level, Calculation value, Memory time,Store the Sampling to Built-in memory or on Memory card, Auto Storage£ºSampling interval 100ms, 200ms, sound level,Leq etc. Processing Card £ºStorage of calculation results
Direct output to printer, control and output data to computer Digital output of real-time noise waveform with USB interface
Comparator Function with threshold level
Four 1.5V Alkaline cells IEC type LR6, Optional AC adapter
Alkaline dry cell ; Approx.9hours when Switch on a back light ;Approx.1/3
Temperature£º-10¢¦50¡É Humidity£º30%¢¦90%RH(no condensation)
86(W) x 285(H) x 46(D)
Less than APPROX£¨450g(including Batteries)