DESCRIPTION
PCE-428 Class 2 Data-Logging Sound Level Meter
Portable high-accuracy decibel meter with 1/1 octave band filter (optional 1/3 octave band filter upgrade)
PCE-428 is a class 2 data-logging sound level meter that meets IEC 60651:1979, IEC 60804:2000, IEC 61672-1:2013, ANSI S1.4-1983 and ANSI S1.43-1997 requirements. This portable high-accuracy sound level meter has a large easy-to-read illuminated LCD screen that displays the sound pressure level (SPL) numerically and graphically in real time. Thanks to octave band filtering, even the slightest difference in frequency is detected.
The handheld meter also functions as a data logger, recording measurements at an adjustable interval from 1 s … 24 h and storing the recorded measurement data to a micro SD card memory. The SD card can be removed from the meter and inserted into the SD card reader of a PC. Alternatively, the decibel meter can be connected directly to a PC via USB. The provided PC-compatible software allows for quick and easy data analysis.
This device measures from 25 … 136 db(A) at a frequency of 20 Hz … 12.5 kHz. The meter features A, B, C and Z frequency weightings as well as fast, slow and impulse time weightings. The PCE-428 decibel meter is commonly used by professionals to ensure compliance with environmental noise regulations and workplace noise permissible exposure limits.
HIGHLIGHTS
– Accuracy class 2
– A, B, C and Z frequency weightings
– Fast, slow and impulse time weightings
– 1/1 octave band filter (optional 1/3 octave band filter upgrade)
– Adjustable data-recording interval from 1 s … 24 h
– Real-time numerical and graphical LCD display
– Adjustable alarm
SPECIFICATION
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
DELIVERY SCOPE
1 x PCE-428 class 2 data-logging sound level meter
1 x Microphone
1 x Wind noise suppressor (foam ball)
1 x USB cable
1 x PC software is a free download
1 x Power supply
1 x User manual
1 x Carrying case
Note: This meter comes standard with a 1/1 octave band filter. An optional 1/3 octave band filter upgrade is available for an additional fee – see accessories.
