Features
- 1.This unit was designed according to following standards:a. International electrician committee standard: IEC PUB 651 TYPE2.b. US national standard: ANSI S1.4 TYPE2
- 2.Accuracy up to +/-1.5dB
- 3.Measurement range is 30 to 130dB
- 4.Fast/Slow Time weigting selection
- 5.Automatic backlight
- 6.The maximum value holding function
- 7.Auto power off 10 minutes
- 8.A/C Frequency weighting selection
- 9.Both AC and PWM signal output are available
- 10.Calendar function
- 11.4700 data record function
- 12.Connect with the PC through USB, provides data record downloading, real-time data sampling analysis, and printing graph&data functions.
Specifications
| Calibration sound source |
94dB@1KHz |
| Measurement range |
30~130dBA、35~130dBC |
| Accuracy |
±1.5dB（reference sound pressure standard，94dB@1KHz） |
| Frequency response |
31.5Hz~8.5KHz |
| Resolution |
0.1dB |
| Measuring level |
30 to 80 , 50 to 100, 60 to 110, 80 to 130, 30 to 130 |
| Dynamic range |
50dB/100dB |
| Overload indication |
OVER / UNDER |
| Frequency weighting characteristic |
A and C |
| Digital display |
4 digits |
| Analogy bar graph |
1dB/1 bar graph |
| Sampling rate |
FAST:8times/second;SLOW:2times/second |
| AC signal output |
4Vrms/ full bar graph, output impedance is about 600 ohm |
| PWM signal output |
Duty cycle =0.01X db value/3.3 x 100% |
| Dyna mic cha racteristic |
FAST(high speed)/SLOW(low speed) |
| Calendar accuracy |
±30seconds/day |
| Data stor age quantity |
4700 |
| The m aximum value holding |
MAX |
| Auto power off |
10 minutes without operation |
| Micro phone |
1/2inch polarization capacitance microphone |
| Power supply |
6V (4PCS 1.5V Alkline battery) |
| Dimension |
70x35x256mm |
| Weight |
244G (Without battery) |
| Battery life |
20h continuous use(Alkaline batteries) |
Packing List
- Color box*1
- Host*1
- Instructions*1
- PP box*1
- Audio Line*1
- CD*1
- USB*1