* Permits choice “A”, “C” , “F” weighting and “Fast” / “Slow” response times.
* Offers 4 measurement parameters: Lp (sound level); Leq (Equivalent Continuous A Sound Level ); Lmax ( Maximum Sound Level) and LN (Percent of all readings over alarm value set ).
* DC output :1 0 m V / d B.
* Can memorize 30 groups of measurement results and measuring conditions.
* Auto range selection and digital display with no guessing errors.
* Use USB/RS-232 data output to connect with PC.
* Provide Bluetooth data output choice.
Thông số kỹ thuật
| Standards |
IEC 651.2, ANSI 1.4.2 |
|
Paraments
Measured
|
Lp-Sound Level |
| Leq-Equivalent Continuous A Sound Level |
| Lmax-Maximum Sound Level |
| LN-Percent of All Reading Over Alarm Value Set |
|
Testing
Range
|
Lp |
30~130dB(A Weighting) |
| 35~130dB(C Weighting) |
| 40~130dB(F Weighting) |
| Leq |
30~130dB(10Seconds,1Min,5Min,10Min,15Min,30Min,1Hour,8Hours,24Hours) |
| LN |
0~100% |
| Resolution |
0.1dB |
| Accuracy |
1dB |
| Frequency Weighting |
‘A’/’C’/’F’*(Flat) |
| Time Weighting |
Fast (125 ms)/Slow (1 Second) |
| Microphone |
1/2 Inch Electret Condenser Type |
| Memory |
30 Group with Measuring Conditions |
| Calibration Signal Built in |
94dB at 1k Hz(sinusoidal) |
| Frequency Range |
20~12,500 Hz |
| Alarm Value Set |
30~130 dB |
| Alarm Output |
LED Optional Relay Contact(NC) |
| Indicator |
Low Battery Indicator |
| Power Supply |
4x1.5V AAA Size (UM-4)Battery |
| External DC Power Supply |
6V,DC,100mA |
| Dimensions |
236x63x26 mm |
| Weight |
170 g |