Measurement Parameter |
LXYP, LAFp, LAFmax, LAFmin, LAF5, LAF10, LAF50, LAF90, LAF95,SD, LAeq1s, LAeqT, LAE, LAfeqT, Lo, LN, Lon, Lxyi, Lxeq 1s, LxeqT, LAE, E, Cpeak+, Cpeak-, LAFmax |
Applications |
Environmental noise measurement |
Display |
LCD with Back Light(240X160 dots) |
Statistic Analysis |
* |
24H Measurement |
* |
Integrating |
* |
128 records Storage |
* |
IEC 61672-1 :2002 CLASS 1 ANSI Sl.4 Type1 CNS NO.7129 Type1 JJG-188 :2002 CLASS 1 |
* |
Display refresh |
10 Hz for value ; 1Hz for graph |
Microphone |
1/2" pre-polarized condenser microphone build in preamplifier, sensitivity : 50mV/Pa, frequency range :10Hz- 20kHz, heat noise : <16dB(A) |
Measurement Range |
25dB-140dB (A) 30dB-140dB (C) 35dB-140dB (Z) |
Dynamic Range |
>90dB |
Instrument Background Noise |
<13dB(A), 15dB(C), 25dB(Z) |
Maximum Peak C Sound Level Measurement |
50dB-143dB |
Time Weighting |
Fast, Slow, Impulse, PeakC+, PeakC- |
Frequency Weighting |
A/C/Z |
Integrating Time |
1 second-24hour, set in a given range or randomly |
Frequency Range |
10Hz-20KHz |
Range Gain |
-10dB, 0dB, 10dB, 20dB, 30dB, 40dB |
Range Error |
0.1dB |
Self-generated Noise Voltage |
<4 µ V(1 Hz-23KHz) |
Measuring Voltage Range |
15 µ V - 10 Vrms |
Sampling Frequency |
20.8 µ s(48KHz) |
Analog output |
A C |
Starting Time |
< 10 Second |
Interface |
USB interface, mini B type. Complying with USB 1.1,compatible with USB 2.0, which can transfer the measuring result to PC, and transfer the data to the Flash disk up to BG |
Power |
LR6 1.5V x4 Alkaline batteries |
External Power |
AC 100-240V to DC 5V |
Dimension |
285x90x39xm m.(LxWxH) |
Weight |
500g (including Batteries); 2.5kgs (including package) |