Class 2 Data Logging Sound Level Meter PCE-428 in Pakistan

Measuring range

25 ... 136 db(A)

Accuracy

Class 2

Frequency range

20 Hz ... 12.5 kHz

Standards

GB/T 3785.1-2010
GB/T 3785.2-2010
IEC 60651:1979
IEC 60804:2000
IEC 61672-1:2013
ANSI S1.4-1983
ANSI S1.43-1997

Frequency analysis

1/1 Octave band filter: 20 Hz ... 8 kHz
1/3 Octave band filter: 20 Hz ... 12.5 kHz

Microphone

1/2"
Microphone Class: 2
Sensitivity: 40 mV/PA
Frequency range: 20 Hz ... 12.5 kHz
Connection: TNC
Power supply: ICCP Standard

Data-logging interval

1 s ... 24 h (adjustable)

Measuring functions

LXY (SPL), LXeq, LXYSD, LXSEL, LXE, LXYmax, LXYmin, LXPeak, LXN

X = Frequency weighting: A, B, C, Z
Y = Time weighting: F, S, I
N = Statistics in %: 1 ... 99%

Frequency weightings    

A, B, C, Z

Time weightings

Fast (F) 125ms, Slow (S) 1 sec, Impulse (I) 35 ms

Inherent noise

Microphone: 20 db(A), 26 db(C), 31 db(Z)
Electronics: 14 db(A), 19 db(C), 24 db(Z)

AD converter

24 Bit

AD Sample rate

Standard: 48 kHz
LN Mode: 20 ms

Measuring display

Numerical
Bar graph
Graphical

Display

160 x 160 pixel LCD with backlight

Memory

4 GB Micro SD card

Interface

USB (Memory readable via software or directly as mass storage)
RS-232

Voltage output

AC 5V RMS
DC 10 mV/db

Alarm

Adjustable

Power supply

4 x 1.5V AA Batteries
12V / 1 A Power plug
5V / 1 A USB

Battery life

Min. 10 h continuous use

Dimensions

70 x 300 x 36 mm / 2.76 x 11.81 x 1.42 in (W x H x D)

Weight

Approx. 620 g / 1.4 lbs incl. batteries