The condition monitoring sound level meter is an optimal sound level meter for measurements at workplaces, construction sites, in traffic, airports, etc. The sound level meter is a class 2 device and is equipped with an octave band frequency filter. The sound level meter can optionally be upgraded with a 1/3 octave band filter. In addition to the numerical display of the measured value, a graph can show the course of the sound level. The sound level meter has various frequency weightings such as A, B, C and Z. The sound meter can also display measurements with the time weightings Fast, Slow, Impulse and Peak. The measuring range of the sound level meter extends from 25 ... 136 dbA at a frequency of 20 Hz ... 12.5 kHz. 3 different measurement profiles can be stored in the sound level meter. Here the user can decide which parameters the sound level meter should record. For example, you can choose between Laeq, LcPeak, LaFmax, LaFMin, etc.
The peak hold function in the condition monitoring sound level meter makes it possible to record the maximum sound pressure level during long-term measurements and freeze it in the display. A 24 bit AD converter and the specially developed electronics of the sound level meter help to reduce the inherent noise to a very low level. Sampling the measurement signal with more than 48 kHz enables high accuracy and improved stability of the measurement value on the sound level meter.
| 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 |
| Class 2 Sound Calibrator | PCE-SC 43 |
| Sound pressure level | 94 dB, 104 dB, 114 dB |
| Accuracy | ±0.4 dB |
| Class | 2 |
| Frequency | 1000 Hz for A, B, C and D frequency weighting |
| Frequency accuracy | ±1.7 % |
| Stabilization time | 10 seconds |
| Total harmonic distortion | <3 % |
| Environmental conditions | |
| Temperature influences | <0.4 dB at 0 ... 40 °C / 32 ... 104 °F |
| Humidity influences | 25 ... 90 % RH |
| Atmospheric pressure | <0.1 dB at 65 ... 108 kPa |
| Stability at <60 seconds | ±0.15 dB |
| Stability after one year | ±0.35 dB |
| (normal use) | |
| Operating conditions | 0 ... 40 °C / 32 ... 104 °F, <25 ... 90 % RH, |
| non-condensing | |
| Storage conditions | -20 ... 50 °C / -4 ... 122 °F, <90 % RH, |
| non-condensing | |
| Automatic shutdown | after 20 minutes |
| Power supply | 2 x 1.5 V AA batteries |
| Battery life | ca. 50 hours |
| Microphone size | 1/2 inch |
| Dimensions | 60 x 130 x 37.5 mm / 2.3 x 5.1 x 1.4" |
| Weight | 400 g / 14.1 oz |
Note: The sound level meter is supplied with a 1/1 octave band filter. An optional 1/3 octave band filter upgrade is available for an additional fee - see accessories.
