PCE-428 - Octave and third-octave band optional - Frequency weighting: A, B, C & Z - Temporal weighting: Fast, Slow, Impulse, and Peak - Statistical function with graphical display - Setting of 3 measurement profiles - ICCP 40 mV / PA microphone - Alarm level setting

PCE-SC 43 - Reference level: 94, 104, 114 dB - Frequency weighting: A, B, C, D - Class 2 - Connection for 1/2" microphones - Battery powered - Battery life: 50 hours

 

PCE-428
Measurement range	25 ... 136 dB(A)
Accuracy	Class 2
Frequency range	20 Hz ... 12.5 kHz
Standards	GB/T3785.1-2010 GB/T3785.2-2010 IEC60651:1979 IEC60804:2000 IEC61672-1:2013 ANSI S1.4-1983 ANSI S1.43-1997
Frequency analysis	Octave band filter: 20 Hz ... 8 kHz Third-octave band filter: 20Hz ... 12.5kHz (optional)
Microphone	1/2" Class 2 microphone Sensitivity: 40 mV/PA Frequency range: 20 Hz ... 12.5 kHz Connection: TNC Power supply: ICCP Standard
Integral time measurement	1 s ... 24 h (adjustable)
Measurement functions	LXY(SPL), LXeq, LXYSD, LXSEL, LXE, LXYmax, LXYmin, LXPeak, LXN.
	X = Frequency weighting: A, B, C, Z; Y = Temporal weighting: F, S, I; N = Statistical in % : 1 ... 99%
24 h measurement	Automatic measurement with data memory
Frequency weighting	A, B, C, Z
Temporal weighting	Fast (F), Slow (S), Impulse (I), Peak
Self-noise	Microphone: 20 dB(A), 26 dB(C), 31 dB(Z) Electronics: 14 dB(A), 19 dB(C), 24 dB(Z)
AD Transducer	24 Bit
Sampling	Standard: 48 kHz LN Mode: 20 ms
Value display	Numeric Bar graph Graphic
Display	Backlit LCD, 160 x 160 pixels
Memory	4 GB micro SD card
Interface	USB (allows reading values via software or using it as storage) RS-232
Voltage output	AC 5V RMS DC 10 mV/dB
Alarm	Adjustable
Power supply	4 x 1.5 V AA batteries 12 V / 1 A light source 5 V / 1 A USB
Operating time with batteries	Min. 10 hours
Dimensions	70 x 300 x 36 mm (L x H x D)
Weight	Approximately 620 g (including batteries)
PCE-SC 43
Reference level	94 dB, 104 dB, 114 dB
Accuracy	10.4 dB
Class	2
Frequency	1000 Hz For frequency weightings A, B, C, and D
Frequency accuracy	11.7%
Stabilization time	10 seconds
Total harmonic distortion	<3%
Environmental factors  - Temperature and humidity  - Atmospheric pressure	<0.4 dB at 0 ... 40 °C and 25 ... 90% R.H. <0.1 dB at 65 ... 108 kPa
Stability <60 seconds	10.15 dB
Stability after one year of use	10.35 dB
Operating conditions	0 ... 40 °C, <25 ... 90% R.H. without condensation
Storage conditions	-20 ... 50 °C, <90% R.H. without condensation
Auto power off	After 20 minutes
Power supply	2 x 1.5V AA batteries
Battery life	Approximately 50 hours
Microphone aperture	1/2"
Dimensions	60 x 130 x 37.5 mm
Weight	400 g

 

The PCE-428 sound level meter is an ideal measuring instrument for performing measurements in workplaces, construction sites, traffic areas, airports, and many other environments. Classified as Class 2, it comes with a built-in octave band filter. Alternatively, the PCE-428 can be equipped with a third-octave filter. Results can be displayed both numerically and graphically. The sound level meter offers various frequency weightings: A, B, C, and Z, and temporal weightings such as Fast, Slow, Impulse, and Leq. The measurement range spans from 25 to 136 dBA, with a frequency range from 20 Hz to 12.5 kHz. Up to 3 measurement profiles can be set, allowing the operator to select the desired parameters, such as Laeq, LcPeak, LaFmax, LaFMin, etc.

 

The "Peak-Hold" function allows the determination of the peak value during extended measurements and retains it on the display. A 24 Bit AD transducer and advanced electronics reduce the device's noise to a very low level. The signal sampling rate above 48 kHz ensures high accuracy and improved stability of the sound level meter's measurements.

 

The calibration frequency used by the acoustic calibrator is 1000 Hz with a sine wave. Compared to other calibrators, the PCE-SC 43 offers three different reference levels: 94 dB, 104 dB, and 114 dB, which can be adjusted simply by pressing a button. The calibrator, unlike other devices, provides an additional reference level of 104 dB and operates with an accuracy of 10.4 dB. This allows precise checking and adjustment of sound level meters. A UNI EN ISO 9001 certification can be requested as an option.

 

The calibrator is powered by 2 x 1.5V AA batteries, ensuring a battery life of approximately 50 hours. The automatic power-off function turns off the device after 20 minutes of inactivity.

 

1 x PCE-428 Sound Level Meter
1 x 1/2" Class 2 Microphone
1 x Windshield
1 x USB Cable
1 x Software
1 x Power Supply
1 x Carrying Case
1 x PCE-SC 43 Acoustic Calibrator
1 x 1.5V AA Batteries
User Manual (available for download)