| Type approval number |
SLS101 |
SLF101 |
| Name |
Sound Level Meter |
Precision Sound Level Meter |
| Applicable Standards |
JIS C1509-1 : 2005 Class Ⅱ
IEC 61672-1：2013 Class Ⅱ
|
JIS C1509-1 : 2005 Class Ⅰ
IEC 61672-1：2013 Class Ⅰ |
| Frequency Range |
20Hz～20kHz
(Conforms with
measurement law
20Hz～8kHz) |
5Hz～20kHz
(Conforms with
measurement law
20Hz～12.5kHz) |
Microphone Type
（Sensitivity） |
TYPE 7052NR：Stand-alone TYPE 7052
(-33dB：Stand-alone -31dB) |
TYPE 7146NR：Stand-alone TYPE 7146
(-29dB：Stand-alone -27dB) |
| 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 |
A:28～130dB
(0～80dB/0-dB function in ON)
C:37～130dB
Z(FLAT):39～130dB
C peak:55～135dB
Z(FLAT)peak:60～135dB |
| Self-noise level |
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. |
| 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)
|