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Sound Level Meter NL-52 & NL-42 Rion

Pembelian Minimum 1
Negara Asal Japan
Update Terakhir 24 Sep 2019



Verified Supplier
Free Member

Lindeteves Trade Center LTC Lantai 1 Blok B 21 No.3 Jl. Hayam Wuruk 127 Glodok Jakarta Barat 11180

Detil Produk Sound Level Meter NL-52 & NL-42 Rion

Sound Level Meter NL-52 RionSpecificationsModelNL-52NL-42Applicable standardsIEC 61672-1: 2002 Class 1IEC 61672-1: 2002 Class 2ANSI S1.4-1983 Type 1ANSI S1.4-1983 Type 2ANSIANSIS1.4A-1985S1.4A-1985Type 1Type 2ANSI S1.43-1997 Type 1ANSI S1.43-1997 Type 2JIS C 1509-1: 2005 Class 1JIS C 1509-1: 2005 Cl
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Detil Produk

Sound Level Meter NL-52 Rion





Applicable standards

IEC 61672-1: 2002 Class 1

IEC 61672-1: 2002 Class 2

ANSI S1.4-1983 Type 1

ANSI S1.4-1983 Type 2





Type 1

Type 2

ANSI S1.43-1997 Type 1

ANSI S1.43-1997 Type 2

JIS C 1509-1: 2005 Class 1

JIS C 1509-1: 2005 Class 2

CE Marking ( EMC Directive 2004/108/EC, Low Voltage Directive 2006/95/EC ), WEEE Directives, Chinese RoHS ( export model for China only )


Measurement functions

Simultaneous measurement of the following items, with selected time

weighting and frequency weighting

Instantaneous sound pressure level : Lᴘ

Equivalent continuous sound pressure level : Leq

Sound exposure level : LE

Maximum sound pressure level : Lmax

Minimum sound pressure level : Lmin

Percentile sound levels : Lᴎ ( 0.1 to 99.9 %, 0.1-increment steps, max. 5 values )

Processing ( sub ch )

Instantaneous sound pressure level : Lᴘ

Additional processing

In addition to main processing items, one of the following can be selected for simultaneous processing :

C-weighted equivalent continuous sound level: LCeq

C-weighted peak sound level : LCpeak

Z-weighted peak sound level : LZpeak

エ-time-weighted equivalent continuous sound level : LAエmax*2

The power average of the maximum level of each 5 second interval : LAtm5

The frequency weighting for the additional processing synchronizes with the frequency weighting of the sub-channel, so when the sub-channel has A-weighting, LAtm5 can be selected.

When C-weighting ( Z-weighting ) is selected, the additional processing LCeq and LCpeak ( Lzpeak ) are selectable.

Measuring time

10 s, 1, 5, 10, 15, 30 m, 1, 8, 24 h, and manual ( maximum 24 h )





Sensitivity level

-27 dB

-33 dB

Measurement range

A-weighting : 25 dB to 138 dB

C-weighting : 33 dB to 138 dB

Z-weighting : 38 dB to 138 dB

C-weighting peak sound level : 55 dB to 141 dB

Z-weighting peak sound level : 60 dB to 141 dB

Inherent noise


17 dB or less

19 dB or less


25 dB or less

27 dB or less


30 dB or less

32 dB or less

Frequency range

20 Hz to 20 kHz

20 Hz to 8 kHz

Frequency weighting

A, C, and Z

Time weighting

F ( Fast ) and S ( Slow )

Level range

Single range ( Linearity range: 113 dB )

Bar graph display range max

Max. 110 dB ( 20 to 130 dB )

Switching of bar graph display

Set the upper/ lower limit in 10 dB increments.

RMS detection circuit

Digital processing method

Sampling cycle

20.8 μs ( Lp, Leq, LE, Lmax, Lmin, Lpeak: sampling frequency : 48 kHz )100 ms ( LN )


Measurement Law : electrical calibration performed according to IEC and JIS standards, using internally generated signals : acoustic calibration performed with the NC-74.

Correction functions

Windscreen correction :

Compliant with IEC 61672-1 and JIS C 1509-1 standards when the windscreen is installed.

Diffuse sound field correction:

Correction of frequency characteristics in order to comply with standards

( ANSI S1.4 ) in diffuse sound field.

Delay time

The meter can be set to start measuring a specified time ( OFF, 1, 3, 5 or 10 s ) after the start button has been pressed or when a user-set trigger is exceeded

Back erase function

When the PAUSE key is pressed to pause measurement, the preceding ( user selectable ) 0, 1, 3 or 5 s data are excluded from processing.


Backlit semitransparent color TFT LCD display WQVGA ( 400 x 240 dots )

*LCD with touch panel ( Capacitive Touch Panel )

Numerical display update frequency : 1 sBar graph update frequency: 100 ms



Data for measurement results are stored manually in single address increments

Number of data

Internal memory : max. 1 000 sets

SD Card : depends on the capacity of the SD Card*1


Instantaneous values ( Lp mode ) and processed values ( Leq mode ) are stored continuously and automatically at preset intervals.

Lp sampling cycle

100 ms, 200 ms, 1 s, Leq 1s

Leq sampling cycle

10 s, 1, 5, 10, 15, 30 ms, 1, 8, 24 h

Measurement Time

Max. 1 000 h ( depends on the capacity of the SD Card )*1

Data recall

Allows viewing of stored data

Setup memory

Up to five setup configurations can be saved in internal memory, for later recall

Start up via file settings previously stored on SD card possible

Waveform recording*³


File format

Uncompressed waveform WAVE file

Sampling frequency

Select 48 kHz, 24 kHz or 12 kHz

Data length

Select 24 bit or 16 bit


DC output

Output DC signals using a frequency weighting characteristic selected by processing.

Output voltage

2.5 V, 25 mV / dB at bar graph display full scale

AC output

Output AC signals using a frequency weighting characteristic selected by processing or by A, C, Z-weighting.

Output voltage

1 V ( rms values ) at bar graph display full scale

Comparator output*²

Turns on when the open-collector output exceeds the set value

( max. applied voltage 24 V, max. current 60 mA, allowable dissipation 300 mW ).


Allows USB to be connected to a computer and recognized as a removable disk

Allows USB to be controlled via communication commands

RS-232C communication

Allows for RS-232C communication via use of a dedicated cable

Data continuous output *²

Type of data

Instantaneous value


Processed value

Leq, Lmax, Lmin, Lpeak

Output interval

100 ms

Print out

Printing of measurement results on dedicated printer DPU-414

Power requirements

Four IEC R6 ( size AA ) batteries ( alkaline or rechargeable batteries ) or external power supply


Battery life ( 23 ⁰C )

Alkaline battery LR6 ( AA ) : 26 h Ni-MH secondary battery : 25 h

At the maximum* Depends on the setting

AC adapter

NC-98C ( NC-34 for previous models cannot be used )

External power voltage

5 to 7 V ( rated voltage: 6 V )

Current consumption

Approximately 90 mA ( normal operation, rated voltage )

Ambient conditions


-10 to +50 ⁰C


10 to 90 % RH ( non-condensing )

Dustproof/water-resistant performance *⁴

IP code : IP54 ( except for microphone )

See precautions regarding waterproofing


Product name

Product number

Extended function program ( Inst.on 512 MB SD card )


Waveform recording program*² ( Inst.on 2 GB SD card )


Octave, 1/3 octave real-time analysis program *² ( Inst.on 512 MB SD card )


FFT analysis program *² ( Inst.on 512 MB SD card )


Data management software for environmental measurement


Data management software for environmental measurement ( Includes the octave and 1/3 octave data management software )


Data management software for environmental measurement (Includes the vibration level data management software)


Waveform analysis software


SD Card 512 MB


SD Card 2 GB


AC adapter ( 100 V to 240 V )


Battery pack


Microphone extension cables

EC-04 ( from 2 m )

BNC-Pin output code


Comparator output cable




Printer cable


RS 232C serial エ/O cable


USB cable

Sound calibrator


All-weather windscreen


Windscreen mounting adapter


Rain-protection windscreen


Sound level meter tripod


All-weather windscreen tripod


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