NL-52 & NL 42Class 1 & 2 Sound level meter
The NL-52 (Class 1) and NL-42 (Class 2) were developed to eliminate the trouble of reading instruction manuals when conducting measurements. Large and easily viewable three-inch LCD color display. The unit (except for the microphone) is water-resistant, which means that it is unaffected by sudden rain showers. You can use rechargeable batteries to help cut down on waste, making this an environmentally friendly product. |
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Features
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Large color LCD screenThree-inch LCD screen with a touch panel. High resolution screen is easy to see indoors or outdoors and even in the dark.
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No paper manual is needed.
User instructions and a help function can be easily accessed on the device.
Measurement Display
(Level-Time graph) |
Measurement Display
(Simultaneous display of Main and Sub channel) |
Parameter Screen
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Menu screen
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Help screen
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* Mounting the All-weather windscreen or rainproof windscreen helps raise the water-resistant performance of the entire unit,so that the microphone will meet IPX3 specifications.
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Water-resistant (Except for the microphone)Guaranteed water-resistant to at least level IP54 (resistant to spraying water).
Helps reduce failures caused by sudden rain showers. |
Use of rechargeable batteries
In these new models it is possible to use rechargeable batteries which make these meters environmentally-friendly.
24 hour continuous measurement is possible (when using eneloop® or dry alkaline batteries). |
･ Please use the dedicated charger to charged eneloop® batteries.
･ When using eneloop batteries, please read the eneloop® battery instruction manual. ･ eneloop® is a registered trademark of Panasonic group. |
Example of detailed recording:
If the Lp is measured at 100 ms intervals and the Leq is simultaneously measured at 10 min intervals over a 24 h period, the total size of accumulated data is approximately 74 MB (reference value) |
Continuous detailed measurements for one monthThis meter can be used to conduct long-term measurements, such as environmental measurements. (If an AC adapter is used)
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Functionality can be extended by a range of options
Additional functions can be added, such as simultaneous logging of raw data (100 ms Lp) and processed data(Leq and other indices), frequency analysis reverberation time measurement and long-term data recording.
1/3 octave band analysis screen
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FFT analysis screen(x40)
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Data management screen of AS-60 software
Optional program function list
When the optional programs are installed, the following functions are added:
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The NX-42EX is supplied on the 512 MB SD card.
The 512 MB SD card can be used as a memory card after installing the program. |
Prepares for other programs
When NX-42EX is installed*, NX-42WR, NX-42RT, NX-42RV and NX-42FT can be added.
10 Hz to 20 kHz 1/3-octave band filters analysis plus overall functions
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*The NX-42EX program cannot be uninstalled.
Auto store function
This function enables continuous measurement in Lp mode (instantaneous SPL) and Leq mode (equivalent continuous SPL)
to be conducted simultaneously.
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Total measuring time of Auto store function Up to 1000h Equipped with a timer function |
Up to 1000h Equipped with a timer function |
Comparator function
FFT Analysis of 10000 lines from 0 to 20000 Hz (2 Hz/line)
Continuous data output function
This function enables the continuous acquisition of instantaneous values and processed values during both USB and RS-232C communication.
This is a convenient function for users who can design their own control programs, where data has to be transferred continuously from the sound level meter to the computer.
This is a convenient function for users who can design their own control programs, where data has to be transferred continuously from the sound level meter to the computer.
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The NX-42WR is supplied on the 2 GB SD card.
The 2 GB SD card can be used as a memory card after installing the program. |
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This function enables users to record sounds and
to process sound levels simultaneously. Recorded data can be played on computer and used for frequency analysis. (Uncompressed waveform WAVE file) Sampling at 48 kHz, 24 kHz, 12 kHz, Selection of 24 bit or 16 bit |
Maximum recording time (16 bit)
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The NX-42RT is supplied on the 512 MB SD card.
The 512 MB SD card can be used as a memory card after installing the program. |
By adding the NX-42RT program to the NL-52/NL-42, octave band and 1/3 octave band analysis can be performed. Saved analysis results can be loaded and shown in an overlay graph display together with current analysis data. NC curve graph display and NC value calculation/display are also possible. Using the AS-60RT software, data can be utilized and managed on a computer.
1/3 octave band analysis screen
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Overlay analysis screen
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NC curve screen
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Partial over all screen
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Measurement screen (Level-Time graph)
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The NX-42RV is supplied on the 512 MB SD card.
The 512 MB SD card can be used as a memory card after installing the program. |
By adding the NX-42RV program to the NL-52/42, reverberation time measurements can be performed. The measurement method is the interrupted noise method.This program allows storage of reverberation time decay curves, T20/T30 calculation,Txx calculation (reverberation time calculation based on a user-defined interval) and averaged reverberation time results displayed on the SLM screen.
Measuring screen (graph)
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Measuring screen (numeric)
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Reverberation time decay curve screen
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Result screen (T20/T30/Txx)
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Watch the Videos on Measuring Reverberation Time
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The NX-42FT is supplied on the 512 MB SD card.
The 512 MB SD card can be used as a memory card after installing the program. |
By adding the NX-42FT program to the NL-52/NL-42, FFT analysis can be performed.The analysis frequency range is 20 kHz, with 8 000 spectrum lines (200 displayed).Saved analysis results can be loaded and shown in an overlay graph display together with current analysis data. Maximum zoom ratio is x40, and the top list screen can show up to 20 lines.
Analysis screen (x1)
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Analysis screen (x40)
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Overlay analysis screen
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Linear average screen
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Top list screen
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System Construction
Peripheral Devices
All weather windscreen WS-15
This windscreen is designed for outdoor installations. It helps to reduce wind noise and is equipped with rainproof features that satisfy the IPX3 water-resistantspecifications. It is used with a microphone extension cable.
(Mounting adapter WS15006 required separately) |
Rain protection windscreen WS-16
This screen protects the microphone against rain for a short period of time.The rainproof performance of this windscreen is designed to satisfy the IPX3 water-resistant specifications.
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Sound Calibrator NC-74
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Tripods
(For All-weather windscreen WS-15, use of ST-81 is recommended.)
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Waveform Analysis Software
AS-70
This software allows you to load stored WAVE files from a RION sound level meter, vibration meter or data recorder. Octave, 1/3 octave, and FFT analyses can then be performed. Playback of the real sound files is also possible.
Frequency Analysis Screen
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Frequency Analysis Screen
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Specifications
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Frequency operating environment
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Complete Software for environmental measurements
Data management software for environmental measurement AS-60
Data management software for environmental measurement AS-60 enables the graph display of measurement data, arithmetic processing, excluded sound processing, preparation of reports, output of files, and playback of real sound files.
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Data Management Screen
Report Preparation Screen
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Recommended computer specifications
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Supported Models
- NL-62 * - NL-52/42 * - NL-32/31/22/21 * - DA-40 Viewer
* Only auto store data are supported.
* Only auto store data are supported.
Data management software for environmental measurement AS-60RT
(Includes the octave and 1/3 octave data management software)
Adds support for handling octave band analysis data to AS-60
AS-60RT is for managing NX-62RT/42RT or NA-28 data on a computer.
Data Management Screen
Supported Models
- NX-62RT * - NX-42RT * - NA-28*
* Only auto store data are supported.
* Only auto store data are supported.
Types of Measurements
Environment
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Vehicles
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Other Industries
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Data Sheet & Product Information |
CERTIFICATIONS AND STANDARDS
CE Marking (EMC Directive 2004/108/EC, Low Voltage Directive 2006/95/EC),
WEEE Directives, Chinese RoHS (export model for China only) |