Environmental Sound Level Meter - Sound Spectrum Analysis - Class II - USB - Octave Band Operation
PCE-428
|
Measuring range |
25 ... 136 dB(A) |
|
Accuracy |
Class II |
|
Frequency range |
20 Hz ... 12.5 kHz |
|
Standards |
GB/T 3785.1-2010 |
|
Frequency analysis |
1/1 octave band filter: 20 Hz ... 8 kHz |
|
Microphone |
Microphone 1/2" |
|
Data logging interval |
1 s ... 24 h (adjustable) |
|
Measurement functions |
LXY (SPL), LXeq, LXYSD, LXSEL, LXE, LXYmax, LXYmin, LXPeak, LXN |
|
X = Frequency Weighting: A, B, C, Z |
|
|
Frequency Weightings |
A, B, C, Z |
|
Time Weightings |
Fast (F) 125 ms, Slow (S) 1 second, Impulse (I) 35 ms |
| Background Noise |
Microphone: 20 dB(A), 26 dB(C), 31 dB(Z) |
|
AD converter |
24 bit |
|
AD Sampling Rate |
Standard: 48 kHz |
|
Measurement Display |
Numeric |
|
Display |
Backlit LCD 160 x 160 pixels |
|
Memory |
Micro SD card 4 GB |
|
Outputs |
USB (Memory readable via software or directly as mass storage) |
|
Voltage output |
AC 5V RMS |
|
Alarm |
Adjustable |
|
Power supply |
4 x 1.5V AA batteries |
|
Battery life |
Minimum: 10 hours continuous use |
|
Dimensions |
70 x 300 x 36 mm / 2.76 x 11.81 x 1.42 in (W x H x D) |
|
Weight |
Approximately 620 g / 1.4 lbs with batteries |
Sound spectrum analyzer and sound intensity meter class II / Measurement range 25dB-136 dB(A), 20 Hz-12.5kHz / Weighting A, B, C, Z / Fast, Slow, Impulse / 1/1 octave 20Hz…8kHz (optional) 1/3 octave 20Hz…12.5kHz in real time / LCD display 160x160pix / ½ inch MPA309T microphone / USB and RS-232 port / 4GB MicroSD / Analog audio output / Recording every 1 sec for 24h
The PCE-428 is a class 2 sound level meter that meets the requirements of standards IEC 60651: 1979, IEC 60804: 2000, IEC 61672-1: 2013, ANSI S1.4-1983, and ANSI S1.43-1997. This portable high-precision sound level meter features a large, easy-to-read illuminated LCD display where the sound pressure level (SPL) is shown numerically and graphically in real time. Thanks to the octave band function, even the slightest difference in frequency is detected. At the same time, as a spectrum analyzer, the frequency of the sound is also displayed on the screen, which is made possible by the 1/1 octave band function that detects even the slightest difference in frequency.
The sound level meter also functions as a data logger, recording and storing measurements at adjustable intervals from 1 s ... 24 h on a micro SD memory card. Besides the SD card, the user can transfer data to a computer via the USB port. Finally, the meter comes with software for data processing.
The capabilities of the PCE-428 meter are enhanced by the fact that it is aimed at workplace condition inspectors who must comply with environmental regulations for permissible noise exposure limits in the workplace.
- Class II category
- Frequency weighting A, B, C, and Z
- Fast, slow, and impulse measurements
- 1/1 octave band filter (optional 1/3 band filter upgrade)
- Adjustable data recording interval from 1 s ... 24 h
- LCD display with real-time value and graph visualization
- Adjustable alarm limits
Package contents
1 x Sound Level Meter, Analyzer, Sound Dosimeter PCE-428 class 2
1 x Microphone
1 x Microphone Windshield (foam ball)
1 x USB cable
1 x Computer Software
1 x Power Supply
1 x User manual
1 x Carrying case
