Detail Sound Level Meter Model : SLM-108C Scitek
Sound Level Meter
The SLM-108C sound level meter is a handheld instrument, and its performance complies with the requirements for Class 2, Type X sound level meters specified in the national standard GB/T 3785－2010 and the international standard IEC 61672:2013 "Sound Level Meters".
It is suitable for on-site measurement of noise from mechanical and electrical products, environmental noise, traffic noise, noise in workplaces, etc., and can also be used for teaching demonstrations in colleges and universities.
Sound Level Meter Specification:
Model
SLM-108C
Performance Level
Grade 2 according to GB/T3785 and IEC61672
Measured and Evaluated Quantities
LP (Time-weighted Sound Level) or Lmax (Maximum Time-weighted Sound Level), Lmin (Minimum Time-weighted Sound Level), LCpeak (C-weighted Peak Sound Level)
Microphone
Grade 2 engineering measurement microphone, nominal diameter 12.7 mm, free-field type frequency response. Nominal sound pressure sensitivity is 50 mV/Pa (Nominal sound pressure sensitivity level is -26 dB, reference value is 1 V)
Frequency Range
20 Hz - 12.5 kHz
Frequency Weighting
A-weighting, C-weighting
Time Weighting
F (Fast response), S (Slow response)
Measurement Range
A sound level: 30 dB - 130 dB; C sound level: 40 dB - 130 dB
Threshold Setting Range
30 dB - 130 dB. When the sound level exceeds the threshold, an over-threshold mark is given, and a high level is output.
Automatic Calibration Range
±4.5 dB (Reference value is 50 mV/Pa)
Display
128×64 dot-matrix liquid crystal display (LCD), resolution 0.1 dB. There are marks for overload, out-of-range, low battery voltage warning, over-threshold alarm, etc.
Analog Output
Output jack is a 3.5 mm dual-channel headphone jack, minimum load impedance 10 kΩ.
DC logarithmic voltage: The output voltage is related to the logarithm of the measured sound pressure, and the output voltage per unit sound pressure is 15 mV/dB.
AC linear voltage: The output voltage is linearly related to the measured sound pressure, and the output voltage corresponding to the upper boundary of the level range is 2.0 V.
Power Supply
2 LR6 (No. 5) batteries. It can work continuously for 27 h under reference environmental conditions.
Operating Temperature Range
0°C - 40°C
Net Weight
0.21kg
Gross Weight
0.65kg
External Size (W×D×H)
210x68x31mm
Shipping Size (W×D×H)
250x220x70mm
