The LA-7000 series are newly designed sound level meter which operation procedure has been greatly improved. The large color LCD and touch panel enable easy and intuitive operation.

 

LA-7000 series allows “measuring while listening to sound” in addition to the original features of a sound level meter such as measurement and calculation.

By listening to the sound instantly at the measuring place, you can confirm condition of a target, perform sound source probing, and check that the sound is unfailingly being recorded. The LA-7000 series sound level meter is a great help for reliable measurement at measurement place where no mistakes can be allowed.

 

By adding various options, the LA-7000 series is able to be upgraded to a sound analyzer (frequency analysis) and a sound recorder*, performing more than just a sound level meter.


The measurement performance is substantially improved only using LA-7000 series which does multiple duties, such as sound measurement, sound recording, frequency analysis, and sound probing of abnormal sound.


By using LA-7000 series together with various analyses software, “waveform analysis”, “sound quality evaluation”, and “fluctuation sound analysis” can also be performed.


*option

 

 

LA-7500 Class 1 Sound Level Meter High Performance type

High sensitivity type. Recommended for small sound measurement

LA-7200 Class 2 Sound Level Meter High Performance type

Recommended for environmental sound measurement requiring high function

 

 

 

LA-7000 series Product video (YouTube)

 

 

Features

Feature

Easy Operation

4.3 inch (size for a smart phone), color

Displays overlapping graph with clarity


At one-touch operation

Recording and data storing are started just by

tapping with a finger.


Listening function

You can find the place from which the sound is occurring by turning the microphone (sound level meter) toward the sound. (It is also possible to listen only to the specified range of the sound.)

Easy to hold

Compact

35 % of size-reduction in volume. Easy-to-hold design


Short lanyard for potable use

The short lanyard provided as an accessory prevents the sound level meter from slipping down.

Easy to use

Intuitive operation by a touch panel

It provides intuitive operation in easily understandable manner by even a beginner touching the sound level meter for the first time.


Home key

Home button leads you to the home screen.


Language selection

Selectable display language from English and Japanese


Capturing function

Capture image information by pressing power key and home key simultaneous.


Power supply from USB---Enables long-time measurement

12 hours of continuous operation: alkaline battery cells (size AA, 4 pcs.) used. Micro USB can be used. The USB consumption takes priority when alkaline battery cells are used in combination with an USB.


Windscreen correction function

Windscreen (standard accessory) does not require correction. (IEC61672-1:2013)


External power ON/OFF function---useful for built-in measurement

Easy ON/OFF operation by switching a battery box.

 

Function

Listening function

DUAL mode & QUAD mode

 

Two or four of calculation values are able to be displayed on the screen. Useful when displaying multiple calculation values with different weightings, such as frequency weighting or time weighting.

 

 

Display example of QUAD mode

 

 

Listening function(Phone output)

Measurement while listening to the sound

Effective for measurement in an anechoic room and remote place
Effective for monitoring from remote place such as environmental sound measurement
Effective for simple sound probing by setting the Octave band filter to listen to the sound of a specified frequency.

※Extension cable and headphones are sold separately.

 

 

Recording function

Sound recording function LA-0704 option

Easy recording by selecting memory mode “Record“ and by pushing ▷(Start) button.

Specification

Memory mode: Record
Sampling frequency: 64 kHz
Recording time:approx. 8 hours (4 GB, at 16-bit recording)/ approx. 5.5 hours (4 GB, at 24-bit recording)
File format:wav(audio data)and csv(trend data for playback:Lzat 1s intervals)

*Simultaneous processing of analysis and recording in RTA mode is enabled

(note) Up to 2 GB of recording by OS-2000 (recorded data with LA).
Recording should be within the following time.
  Recording time
  4.5 hours (2 GB, at 16-bit recording)
  3 hours (2 GB, at 24-bit recording)

 

 

Sound probing

1/1 Octave Analysis function(RTA mode · Filter mode)

Conforming standard: IEC 61260-1:2014 Class1/ JIS C 1513-1: 2002 Class1,  JIS C 1514-1:2002 Class 1


Analysis band: 16 Hz to 16 kHz  (11 bands), Allpass1, Allpass2
Calculation item: Filter Mode  (Bandpass, Allpass selectable) · · · Lp, Leq, LE,Lmax, Lmin, Lpeak, LNlist

                         RTA Mode · · · Lp, Leq, LE, Lmax, Lmin (Main)

Measurement range: 10-80 dB, 20-90 dB, 30-100 dB, 40-110 dB, 50-120 dB, 60-130 dB,(excluding wide range)
Memory mode:Manual, Auto, Logging, Record* ( *when the LA-0704 installed )

 

RTA 1/1 mode

This is one of the frequency analysis modes which displays frequency divided by octave band. Vertical axis represents sound pressure level (sound loudness), and horizontal shows frequency (sound pitch). In this mode, it is obvious which pitch of sound is loud. Data comparison of RTA 1/1 data and MAIN data is available by overlapping drawing.

Filter 1/1 mode

By using the octave band filter, you can listen to only the interested sound even in noisy environment. It helps sound probing of abnormal sound. Data comparison of Allpass (all ranges) and Bandpass (specified band) is available.

 

 

Octave analysis Sound Proving

1/3 Octave band Analysis function(RTA mode · Filter mode) LA-0702 option

This function enables analysis and evaluation of octave band which is further divided into. Also you can listen to the sound through 1/3 octave bandpass filter.

 

Specification

Conforming standard: IEC 61260-1:2014 Class1/ JIS C 1513-1: 2002 Class1,  JIS C 1514-1:2002 Class 1


Analysis band: 12.5 Hz to 20 kHz (33 bands), Allpass1, Allpass2
Calculation item: Filter Mode(Bandpass, Allpass selectable) · · · Lp, Leq, LE, Lmax, Lmin, Lpeak, LNlist

                            RTA Mode · · · Lp, Leq, LE, Lmax, Lmin (Main)

Measurement range: 10-80 dB, 20-90 dB, 30-100 dB, 40-110 dB, 50-120 dB, 60-130 dB (excluding wide range)
Memory mode:Manual, Auto, Logging, Record* ( *when the LA-0704 installed )

 

RTA 1/3 mode

This is one of the frequency analysis modes which displays frequency divided by octave band. Vertical axis represents sound pressure level (sound loudness), and horizontal shows frequency (sound pitch).
In this mode, it is obvious which pitch of sound is loud. Data comparison of RTA 1/3 data and MAIN data is available by overlapping drawing.

Filter 1/3 mode

By using the octave band filter, you can listen to only the interested sound even in noisy environment.
It helps sound probing of abnormal sound. Data comparison of Allpass (all ranges) and Bandpass (specified band) is available.

Interface

 

LA-3000

 

Accessory

付属品

Specification

 

LA-7500 Class1 LA-7200 Class2
Applicable standard JIS C 1509-1 :2017 Class1
JIS C 1516 :2014 Class1
IS C 1J509-1 :2017 Class2
JIS C 1516 :2014 Class2
IEC 61672-1 :2013 Class 1 IEC 61672-1 :2013 Class 2
ANSI S1.4-2014/Part1 Class1 ANSI S1.4-2014/Part1 Class2
Measurement frequency range 10 Hz to 20 kHz 10 Hz to 8 kHz
Measurement level range (IEC, JIS)
A: 24 to 138 dB
C: 32 to 138 dB
Z: 38 to 138 dB
A: 23 to 138 dB
C: 30 to 138 dB
Z: 36 to 138 dB
Intrinsic noise level A: 16 dB or less
C: 24 dB or less
Z: 30 dB or less
A: 17 dB or less
C: 24 dB or less
Z: 30 dB or less
Microphone MI-1271 MI-1471
Microphone preamplifier MI-3270
Linearity range Wide range: 110 dB / Normal range: 80 dB
Level range 20 to 130 dB (wide)/60 to 130 dB/50 to 120 dB/
40 to 110 dB/30 to 100 dB/20 to 90 dB/10 to 80 dB
Reference range 50 to 120 dB
Time weighting e.g.: LAF F (fast), S (slow), I (impulse) and 10 ms
Frequency weighting e.g.: LAF A, C and Z
Measurement items Lp, Leq, LE, Lmax, Lmin Lpeak,
LN (L5, L10, L50, L90, L95, Lhigh, Llow, Lave, and two more of any LN data)
Sampling interval 15.6 μs (Lp, Leq, LE, Lmax, Lmin, Lpeak), 100 ms (LN)
Measurement time e.g.: If you want to measure a fixed 10-minute period every hour,
       and wish to measure this for 24 hours,
M.T:10 minutes, P.T: 1 hour, and T.T: 24 hours
  Measurement time
(Meas.Time)
Manual (OFF), user-specified setup: 0.1 to 199 hour 59 min. 59.9 sec. resolution: 0.1 sec.
Period time
(Period Time)
1 min. to 24 hours resolution: 1 min.
Total Time
(Total Time)
0 sec. to 999 hour 59 min. 59.9 sec. resolution: 0.1 sec.
Start mode Manual start, timer start, count down start, level start
Display device 4.3-inch LCD with color backlight (touch panel type)
  Digital display 4-digit/ resolution: 0.1 dB/ update cycle: 1 s
Bar indicator Wide range: 100 dB of display range/ Normal range: 70 dB of display range
Remaining battery level display 4-step display
Memory function Stored in an SD/SDHC card (SDHC card: up to 32 GB.)
  Memory mode

MANUAL (CSV file)

AUTO (instantaneous value, calculated value, CSV file)………………standard function
LOGGING (instantaneous value, 10 ms or 100 ms, CSV file)……….standard function
RECORD (WAVE file: 64 kHz sampling)……………….………………………required for the LA-0704

Panel condition memory Internal memory (internal condition: 5, EZ condition: 5/SD, power off memory),
or SDHC card memory
Basic measurement mode 5 modes (EZ1: LAeq+LCpeak, EZ2: Record, EZ3: Logging 100 ms, EZ4: NC, EZ5)
Clock function

Built-in (year/ month/ day/ hour/ minute)

Retention time of content: approx. 1 year

(charging time: 24 hours from entire discharge state)

Calibration history function

Built-in memory (number of stored points: approx. 100 points),

Content (Calibration value, VR position for control, internal reference signal of
used sound calibrator, calibration date)

Resume function Stores measurement conditions into the built-in memory
Calibration Reference signal (when connecting external device)

Electronic calibration by built-in transmitter (1 kHz sine wave)
Normal range: -6 dB of full-scale wide range: -16 dB of full-scale

Recommended calibrator SC-3120, SC-2500 SC-3120, SC-2500, SC-2120A
Output/Input Phone output (Headphone output)

Actual sound or recorded sound (playback sound)

Selected 1 band of actual sound or recorded sound (playback sound) in
1/1 octave filter (standard function) or 1/3 octave filter mode (option: LA-0702)
Maximum output: 0.03 mW (63Ω: at 1kHz)

Connector: stereo φ3.5

AC output Outputs one of A, C, or Z interlocked with the main display
  AC output level

Output level: 0.707 Vrms ±5 (normal range),
2.236 Vrms ±5 (wide range) when range full-scale input,1MΩ loaded

Distortion rate (range full scale): 0.2 % or less

Load resistance: 10 kΩ or more

Offset voltage: ±30 mV or less

Output impedance: 50 Ω± 2%

AC/DC output Selectable form DC, AC-Z or Through
  DC output level 2.5 V ±20 mV (normal range, wide range) when range full-scale input,1MΩ loaded
Scale factor: 0.25 V±10 mV/10 dB
Load resistance: 10 kΩ or more
Output impedance: 50 Ω ± 2%
AC-Z output level

Output level: 0.707 Vrms ±5% (normal range),
2.236 Vrms ±5% (wide range) when range full-scale input,1MΩ loaded

Distortion rate (range full scale): 0.2 % or less

Load resistance: 10 kΩ or more

Offset voltage: ±30 mV or less

Output impedance: 50 Ω ±2 %

Through output level

0.707 Vrms ±5 % (normal range/ wide range) when full-scale input, 1MΩ loaded

Distortion rate (range full scale): 0.2% or less

External control input

Operation: Reset and start

Control voltage: non-voltage contact input,
input pulse width: 200 ms or more

Absolute max. input voltage: 24.0 V

Interface RS-232C Baud rate: 9600, 115200 bps, multi I/O cable (sold separately)
USB

Compliant with USB high speed storage class specification ver. 2.0,
USB connection calbe: USB (A) male-USB (mini) male (sold separately)

External memory SD/SDHC memory card (SDHC : up to 32 GB)
Applicable extension cable
(for microphone extension) *1
103 m (CE conforming cable: up to 30 m)…AG-3400 series
Power supply · Size AA battery (alkaline battery cell or Ni-MH secondary vattery) x 4 pieces
· USB bus power (operating input voltage range: 4.75 to 5.25 VDC)
· AC adapter (PB-7090, power consumption: approx. 7 VA when using 100 VAC)
External power operation function

The main unit is activated automatically when the power is supplied from an AC adapter.
(This function is not available by battery cells.)
Switch on/off can be done with the switch in the battery box (standard function)

Windscreen correction function Function to correct the influence of windscreen
*Applicable to the IEC61672-1 even if the windscreen is installed.
Battery life (continuous use) *2

Alkaline battery cell LR6: approx. 12 hours

Ni-MH secondary battery: approx. 12 hours

Operating (storage) temperature range −10 to 50 ºC (−20 to 60 ºC)
Operating (storage) humidity range 20 % to 90 %RH (10 % to 90 %RH ) with no condensation
Outer dimensions Approx. 90(W)×279(H)×42(D)
Weight Approx. 540 g (including batteries)
Accessories
AC adapter (PB-7090)* Signal cable (AX-501)
Windscreen (Φ70 mm) Hand strap
Size AA battery cell x 4 pieces Carrying case (including shoulder belt)
SDHC memory card Iinstruction manual (CD)
Setup guide  

*For details about the outlet cable, please contact your nearest distributor or send an e-mail (overseas@onosokki.co.jp) to us.
Please use a recommended SD card when you use the SD memory function.

*1: The described value is extendable length when the exclusive cable is used.
*2: It depends on the using status such as operation mode, memory mode, and backllight.

Related product

 

JCSS calibration is possible

SC-2500/SC-3120/ SC-2120A (recommended)

Overview

Sound calibrator indispensable for accurate sound measurement. Conforms to JIS C1515:2004.

SC-2500: Used for calibration of Class 1 and Class 2 Sound level meter

Since the SC-2500 uses the sound pressure feedback control method to control fluctuations in sound pressure caused by static pressure, it can generate a stable sound pressure even if operating environment changes. Generates sound pressure at 1000 Hz and 114 dB.

SC-3120: A piston-phone type calibrator for Class 1/C sound level meter.

Generates large sound pressure at 250 Hz and 114 dB.

SC-2120A: Dynamic speaker type. Simple type for quick operation check, cost-effective model.

Generates sound pressure at 1 kHz and 94 dB.


Use the SC-2500 or SC-3120 for the LA-7500 (Class 1) Sound Level Meter.

SC-2500
SC-2500

SC-3120

SC-2120A

LA-0207A All weather type windscreen

Overview

 Using the all-weather type windscreen reduces noise caused by the wind when performing sound level measurement outdoors, and prevents the microphone from being damaged by rain or snow.

Screen diameter :Φ 200 mm
Mounting screw :1/4-20 UNS depth 6 (screw for tripod                             attachment)

Tripod: sold separately

 *Set the extension cable correction function in the main
   unit of the LA-7000 series before use.

* Conforms to IEC 61672-1:2002 and JIS C 1509-1:2005
   when the LA-0207A is attached to the sound level meter.

* Periodical exchange is necessary for the expendables
  (windscreen, waterproof mesh).

 

AG-3400 series Microphone extension cable

Overview Microphone can be used away from the main unit of sound level meter by connecting exclusive extension cable.

*Set the extension cable correction function in the main unit of the LA-7000 series before use.
MI-0301: standard accessory



MI-0301 holder: standard accessory

AG-3401 (5 m), AG-3402 (10 m), AG-3403 (20 m), AG-3404 (30 m)

LA-0203D Tripod

Overview

Standard tripod for use with sound level meter
(Airy L100 made by SLIK Corporation)

 

USB cable(recommended: U2C-AMBF2U12BK (made by ELECOM)

Overview

Micro-USB(A-microB) cable 2A output supported (1.2 m) with ferrite core

            USB(A)                                    USB(microB)(Sound level meter side)


 

RS-232 Ccable (Product code PS-D1075* )

Overview

Interface for RS-232C (2 m)

                                  Serial port side (D-sub9pin)                                   MULTI/IO(Sound level meter side)



*Code of Ono Sokki

OS-2000 Time-series Data Analysis software

Overview <Offline Analysis>

Waveform analysis
Various offline analysis by reading WAVE file*. By using IIR filter (option), listening to the filtered recorded sound while playing back is possible.


IIR filter (OS-0261)
Sound quality evaluation

It expresses non-stationary sound as various graphs, including color map, by which the LA-7000 series cannot display.
More complicated sound quality evaluation, such as Sharpness analysis and roughness analysis is possible.

Sound quality evaluation (OS-0271)

Fluctuation sound analysis
This analysis method is excellent in detecting low level of time fluctuation sound (chatter vibration) that is difficult to detect by FFT analysis. Time fluctuation component is clearly displayed by using two axes timbre and fluctuation period.

*Supports 16-bit / 24-bit WAVE file


Fluctuation sound analysis (OS-0272)

DS-3000 series Data Station

Overview Online analysis

FFT, 1/N Octave offline analysis software
This software reads WAVE file* of LA-3000 series, and performs FFT analysis · 1/N analysis online.
For example, you can analyze non-stationary signal by two-axis color map of time and frequency.

 

Real-time analysis
Real-time analysis is able to be performed by using analog output from the LA-3000 series instead of a microphone.
DS-3000 series can perform simultaneous analysis of the filtered-signal output (A-weighting etc.) and not filtered signal output from LA-7000.

*Supports 16-bit WAVE file

ESUFEEL(DS-3000)
DS-3000 series


Revised:2017/9/21



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