Description
Class II sound level meter with octave filter or 1/3 octave filter for frequency analysis / USB interface / Data logger / A, B, C, Z evaluation / Fast, slow and pulse analysis
The sound level data logger 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 sound level data logger 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.
Highlights
- 1/3 octave band optional
- Accuracy class 2
- A, B, C & Z Frequency weighting
- Fast, Slow, Pulse and Peak time weighting
- Statistics function
- Display of the sound curve as a graph
- 3 measurement profiles adjustable
- Low inherent noise
- ICCP microphone 40 mV /PA
- Alarm level adjustable
- incl. calibrator
Specification
Measuring range | 25 ... 136 db(A) |
Accuracy | Class 2 |
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 | 1/2" microphone Class 2 |
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 | |
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) |
AD converter | 24 Bit |
AD Sample rate | Standard: 48 kHz |
Measuring display | Numerical |
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) |
Voltage output | AC 5V RMS |
Alarm | Adjustable |
Power supply | 4 x 1.5V AA Batteries |
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 |
Delivery Scope
1 x 1/2" microphone class 2
1 x Wind noise suppressor (foam ball)
1 x USB interface cable
1 x Software (free download)
1 x Mains power adapter
1 x Carrying case
1 x Instruction manual
1 x Sound calibrator PCE-SC 43
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.
