This equipment has been designed to meet the measurement requirement of Safety Engineers,
Health, Industrial Safety offices and Sound Quality control in various environment,
which include factory, office, trffic, family, and audio system.
| Specification |
| Measuring range |
30~130dBA、35~130dBC |
| Accuracy |
±1.5dB(under reference conditions) |
| Frequency range |
31.5Hz~8.5KHz |
| Level range |
30~80,50~100,60~110,80~130,30~130dB |
| Linearity range |
50dB/100dB |
| Frequency weighting |
A/C |
| Digital Display |
4digits |
| Resolution |
0.1dB |
| Sample rate |
2 times/second |
| Bar graph |
50 dB scale at 1 dB step for monitoring current sound pressure level display
Sample rate:20times/second |
| Over indication |
OVER/UNDER |
| AC output |
0.707Vrms at FS output impedance
approx.600 ohm |
| DC output |
10mV/dB, output impendance approx. 100ohm |
| Time weight |
FAST/ SLOW |
| Microphone |
1/2 inch electret condenser microphone |
| Max |
MAX |
| Power supply |
1.5V AA alkaline cells or DC 6V 100mA
(maximum DC9V) |
| Power life |
About 30 hours (alkaline battery) |
| Self calibration time |
3 s |
| Operating condition |
0~40℃,10~85%RH |
| Storage condition |
-10~40°℃,0~70%RH |
This equipment has the following functions:
1. It is designed according to the IEC651 TYPE2 & ANSI S1.4 TYPE2
2. Accuracy up to +/- 1.5 dB
3. Measurement range: 30~130 dB
4. With two equivalent weighted sound pressure levels, A and C.
5. Fast & Slow dynamic characteristic modes.
6. AC and DC output for frequency analyzer level recorder, FFT analyzer, graphic recorder etc.
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