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Sound Level Meter TYPE 6236 , Precision Sound Level Meter TYPE 6238
Sound Level Meter TYPE 6236
Precision 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 TYPE 6236/TYPE 6238 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.
| Type | TYPE 6236 | ||
| Type approval number | SLS101 | ||
| Name | Sound Level Meter | ||
| Applicable Standards | JIS C1509-1:2005 ClassⅡ | ||
| IEC 61672-1:2002 ClassⅡ | |||
| Frequency Range | 20Hz～20kHz | ||
| (Conforms with | |||
| measurement law | |||
| 20Hz～8kHz) | |||
| Microphone Type | TYPE 7052NR | ||
| （Sensitivity） | (-33dB,Stand-alone -31dB) | ||
| Measurement Level | A:28～130dB | ||
| (0～80dB/0-dB function in ON) | |||
| C:36～130dB | |||
| Z(FLAT):40～130dB | |||
| C peak:55～141dB | |||
| Z(FLAT)peak:60～141dB | |||
| Self-noise level | The lower limit of the | ||
| measurement range in dB lies 6dB | |||
| higher than self-noise level. | |||
| Level Range Control | 10dB 6step | ||
| 20～80dB、20～90dB、20～100dB | |||
| 20～110dB、30～120dB、40～130dB | |||
| (0～80dB／0-dB function in ON) | |||
| Linearity Range | 100dB | ||
| Time weighting | Fast、Slow、Impulse | ||
| Frequency weighting | A、C、Z(FLAT) | ||
| Measurement items | Sound pressure level(Lp) | ||
| A-weighted sound pressure level(LA) | |||
| C-weighted sound pressure level(LC) | |||
| Equivalent continuous A-weighted sound pressure level(LAeq) | |||
| Sound Exposure level(LAE) | |||
| Maximum sound pressure level(LAmax) | |||
| Minimum sound pressure level(LAmin) | |||
| Percentile sound pressure level(5 freely selectable values、LAN) | |||
| Peak Sound Pressure level(Lpeak) | |||
| C- weighted Peak Sound Pressure level(LCpeak) | |||
| Power average of maximum sound pressure level in a given interval(LAtm5) | |||
| Impulse Sound pressure level(LAI) | |||
| Impulse equivalent continuous sound pressure level(LAIeq) | |||
| Measurement time | 1s/3s/5s/10s/1min/5min/10min/15min/30min/1h/8h/12h/24h | ||
| Manual(Max. 199h59m59s) | |||
| Sampling Time | 20.8μs(Leq、Lmax、Lmin)、100ms(LN) | ||
| Data clear Function | Pause, and a function that deletes preceding 3 or 5 sec. | ||
| Memory start；Selectable Auto or Manual | |||
| Timer function | A marker can be set to start and stop the measurement at any specified moments. | ||
| 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 5 steｐs display | ||
| Date | year/month/day/hour：minute：second | ||
| Pause | Normal pause function, as well as the function of canceling | ||
| the data before pausing the measurement, are available. | |||
| Calibration signal | Electric calibration with internal oscillator (1kHz sine wave) | ||
| AC Output | φ2.5Jack | ||
| Output：1Vrms(FS) | |||
| Output impedance：600Ω | |||
| Load impedance：more than 10kΩ | |||
| DC Output | φ2.5Jack | ||
| Output：2.5V(FS) | |||
| 0.25V/10dB Output impedance：50Ω | |||
| Load impedance：more than10kΩ | |||
| RMS detection circuit | True RMS detection circuit（computing type） | ||
| Processing | Digital | ||
| Data Storage Functions | Sound pressure level or Processed values stored in | ||
| built-in Memory or Memory card | |||
| Manual Storage：Sound level, Calculation value, Memory time, | |||
| Store the Sampling to Built-in memory or on Memory card, | |||
| Auto Storage：Sampling interval 100ms, 200ms, | |||
| Sound level,Leq etc. Processing Card ：Storage of calculation results | |||
| I/O | Direct output to printer, control and output data to computer Digital output of | ||
| real-time noise waveform with USB interface | |||
| Comparator Output | Comparator Function with threshold level | ||
| Battery Type | Four 1.5V Alkaline cells IEC type LR6, Optional AC adapter | ||
| Battery life | Alkaline dry cell ; Approx.9hours when Switch on a back light ;Approx.1/3 | ||
| Operating temperature | Temperature：-10～50℃ | ||
| Humidity：30%～90%RH(no condensation) | |||
| Size | 86(W) x 285(H) x 46(D) | ||
| Weight | Less than Approx.450g(including Batteries) | ||
| 【1/1 and 1/3-octave Real-time Analysis Card】 | |||
| Applicable Standards | JIS C 1514（IEC61260):classI | ||
| Measurement mode | Sound pressure level(Lp) | ||
| Equivalent continuous sound pressure level(Leq) | |||
| Sound exposure level(LE) | |||
| Maximum sound pressure level(Lmax) | |||
| (One of the measurement modes selected as above is displayed.) | |||
| Frequency analysis band | 1/1-octave filter: | ||
| 16Hz,31.5Hz,63Hz,125Hz,250 Hz,500Hz,1kHz,2kHz, | |||
| 4kHz,8kHz,AP,OA | |||
| 1/3-octave filter: | |||
| 12.5Hz,16Hz,20Hz,25Hz,31.5Hz,40Hz,50Hz,63Hz,80Hz, | |||
| 100Hz,125Hz,160Hz,200Hz,250Hz,315Hz,400Hz,500Hz, | |||
| 630Hz,800Hz,1kHz,1.25kHz,1.6kHz,2kHz,2.5kHz,3.15kHz, | |||
| 4kHz,5kHz,6.3kHz,8kHz,10kHz,12.5kHz,16kHz,AP,OA | |||
| Level Range Control | 10dB 6step | ||
| 10～80dB、20～90dB、30～100dB | |||
| 40～110dB、50～120dB、60～130dB | |||
| (-10～60dB、0～70dB、10～80dB/0-dB function in ON) | |||