Product Data Sound Level Meters Nor131 & Nor132 Applications • Noise hazards in the workplace • Prescription of hearing protection • Environmental noise investigations • Product noise testing • Noise labeling Features • Single measurement range • Parallel LAeq and LCpeak • Real-time frequency analysis • Both 1/1- and 1/3-octave bands • Large internal memory • Clock synchronized measurements

The Nor130 Series of SLM’s uses the latest available digital of technology to give the operator a clear view of the noise advanced sound analysers for more than 40 years, climate. The main operations are performed through dedicated is proud to present a new range of sound level front panel keys in order to give instant access to all required meters. We have taken parts of the unique technology functions during the measurement. No need to pre-select from our more advanced analysers into a new required measurement function before starting the investiga- simple sound level meter - to give the users...

AH measurements are stored using the actual date as current directory name The different storage modes can be set in the memory menu. Manual Requires that the operator manually stores the acquired data before the next measurement is made. The instrument prompts the user to store before a new measurement begins, or before Automatic The data is stored automatically each time a Repeat Automatically storage of data and restart of next measurement using the same setup and duration. There will be a short time delay between each mea- surement due to internal memory housekeeping. Synchro Same as Repeat,...

Environmental noise assessments A more detailed analysis may be performed by adding the level vs. time option (option 3). This allows a level vs time By adding the statistical LN function (option 2) the instrument resolution of 1 sec (see option 3 later). will also provide the dB values in terms of the L5, L10, L50, L90 The acquired data can be further analysed and a report etc that are required to determine the impact of noise in the generated by use of the post processing program NorReview These measurements often require long term noise monitoring. With the clock synchronized automatic storage...

Sound Power measurements The Nor130 series of instruments together with the Sound Power post processing and reporting program NorPower (Nor1035) is a powerful and budget friendly tool for CE noise labelling a machine according to the EU directive 2000/14/EC and the ISO 3740 series of standards r Ltd. B nufacture in HX5-6 Prime Ma for oil-turb Machine Cooling Client: Object: Mounting conditions: Flat mount Normal refe Operating conditions: re: c Pressu Barometri re: Temperatu : humidity Relative Dimension Length: Width: Height: Volume: Box: Reference h): L1 (Lengt ): L2 (Width t): L3 (Heigh Volume:...

Real Time Frequency analysis The spectral weighting network A reports one value for the entire frequency spectrum. It is a sum of the entire noise. The same applies for C and Z networks. If a more detailed analysis is needed for parts of the frequency spectra, such as which frequency is domination the noise spectrum, or maybe comparing different noise spectra, the frequency analysis option is needed. The Nor130 series of instruments may be extended with 1/1 octave (option 1) or with 1/3 oc- tave (option 4) frequency analysis option. Both options are real time filters analysing all bands in parallel,...

Level versus time measurements Option 3, level vs. time enables the instrument to log the time profile like the classic level recorders used to do. The time profile is measured by dividing the total measurement into smaller periods of time, all having the same duration. The period length can be set from 1 second and upwards in 1 second steps. The logged parameters are LAeq, LAmax, The level vs. time measurement is made in parallel with the basic sound level meter functions for the overall level; the global level for the entire measurement period. If any of the frequency analysis options are installed,...

(Common for both models unless noted.) The Nor130 series of SLM fulfil the following standards: IEC60651, IEC60804, IEC61672, IEC61260, ANSI S1.4, ANSI S1.11, and ANSI S1.43. The Nor131 instrument meets the Class1 requirements while the Nor132 instrument is to the Class 2 requirements. Measured Parameters: Simultaneous measurement of SPL, Leq, LMax, LMin, LE and LPeak (plus the Tmax5 for Germany only). Time weighting functions: Fast, Slow or Impulse. Spectral weighting functions: Simultaneously measurement of A and C or Z-weighting. Additionally the 1/1 octave real time filters covering all bands...