Intended Use - VOLTCRAFT SL-400 Notice D'emploi

Intended Use

The sound level measuring device is a digital device for measuring the sound level in
Decibel (dB) and corresponds to the demands of EN 61 672-1. The SL-400 is classi-
fied in Class 2 for general field tests (e.g. operative measurements). The measuring
ranges can be calibrated via the integrated adjustment feature.
The values measured and the current measurement units/functions are displayed
digitally on a large LCD (Liquid Crystal Display).
A bar graph display enables the detection of fast and short sound levels.
Two frequency weighting filters (A/C) and two time weightings (fast/slow) can be pre-
selected and allow universal application.
Measuring is possible in a frequency range from 31.5 Hz (Hertz) up to 8 KHz (Kilo
Hertz) as well as a sound level from 30 to 130 dB.
The maximum values as well as the display content can be saved.
In order to suppress interfering wind noise, the device features an attachable wind
protector, which does not interfere with the sound level measuring.
The measuring device also features a display illumination. A data logger for internal
measuring value recording is installed. The measuring values can be transferred to a
computer and analysed there via the USB interface. A proportional voltage (10 mV
DC/dB and max. 1VrmsAC/130 dB) is output at the AC/DC analog output.
A 9-V block battery (type 1604A) or the enclosed power pack unit are required for
operation.
Measurements must not be carried out under unfavourable ambient conditions.
Unfavourable ambient conditions are:
- Wetness or high air humidity
- Dust and flammable gases, vapours or solvents
- thunderstorms or similar conditions such as strong electrostatic fields etc.
Use other than that described above will lead to damage to the product.
No part of the product may be modified or rebuilt!
The safety instructions must be followed unconditionally!
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