Kanomax 4431 Specifications

Sound level meter

MODEL 4431

Instruction manual

KANOMAX JAPAN INC.

1

Components of this Instruction manual

This instruction manual refers to the functions of, and operating instructions for, Sound Level Meter MODEL 4431 (abbreviated to “this equipment” in what follows)

This instruction manual consists of following chapters.

Outline

The components, characteristics, block diagram of this equipment are described

Locations and their functions

The names and functions of keys and terminals are briefly described.

Liquid crystal screen

The symbols displayed on the screen are described.

Preparation

The power supply, check before use, installation of this equipment, connection of cables and various key setting are described.

Measurement

Basic idea of measurement method is described.

Recording

How to save or recall data is described.

Printing/Collecting

How to print or collect the measurement data is described.

Output terminal

Output terminal of this equipment is described.

Specification

The specification of this equipment is described.

2

Safety precautions

To prevent bodily injury or damage to property, the following safety precautions must be observed.

This manual contains important safety and operating instructions for this equipment. Read all instructions, before using the instrument. After reading all instructions, keep this manual for quick reference

１１１１．．．．Expressions of safety instructions

WARNING

Calls attention to a procedure, practice, or condition that could possibly cause death or

bodily injury.

CAUTION

Calls attention to a procedure, practice, or condition that could possibly cause bodily injury or damage to instrument.

NOTE

It is an advisory explanation to use this equipment correctly. (It is not a safety instruction )

3

２２２２．．．．Important safety instructions

Stop using the instrument, when producing smoke, bad smell or noise. It causes fire or shock hazard. Turn off the POWER switch and unplug the AC adaptor (optional) from outlet as soon as possible. To reduce risk of injury, take it to a qualified serviceman when service or repair is required. Please contact us or the dealer when service or repair is required. Do not substitute parts or modify instrument. It causes bodily injury, fire or shock hazard.

Do not use the AC power adaptor except the optional AC-1026. Other type of adaptor may cause damage to the instrument.

WARNING

Do not touch the plug of AC adaptorwith wet hands. It causes shock hazard.

Stop using the instrument, when an object or liquid falls/spills into the instrument. It causes fire or shock hazard. Turn off the POWER switch and unplug AC adaptor (optional) from outlet as soon as possible. To reduce risk of injury, take it to a qualified serviceman when service or repair is required. Please contact us or the dealer when service or repair is required.

4

３３３３．．．．Cautions for usage

This equipment is assembled with precision parts. To prevent bodily injury or damage to the instrument, the following cautions must be observed.

CAUTION

Keep the instrument away from the children. If the instrument falls down, it is very dangerous.

Do not place it on an unstable place (shaky table or sloping place). If the instrument falls down, it is very dangerous.

Do not expose the instrument to moisture or dust. It causes fire or shock hazard.

Do not put heavy objects on the instrument. It causes damage to the instrument.

Connect cable properly, it is instructed in this manual. Wrong connection causes fire hazard.

Before you move the instrument to other place, turn off the POWER switch and remove all wiring.

Do not put the instrument on the vibrating place. If the instrument falls down, it is very dangerous.

For avoiding liquid spill, remove alkaline dry batteries when you don’t use for long period of time. It is recommended to remove alkaline dry batteries after each use.

5

Disclaimer in usage of the software product

When this software is used, it is assumed that the customer has accepted all the following items.

1) The customer is permitted to use this software product based on the agreement of use

conditions, not to transfer or sell to the third party.

In case the customer cannot accept the following items, the product cannot be cleared to use, either.

2) The software product, together with attached documents such as instruction manuals,

belongs to KANOMAX and is protected by the Copyright Law., etc.

The customer is not permitted either to copy, modify, alter this software product, or remove the product label.

The customer is not permitted to create any similar products, or have the third party do these actions.

3) Please do try hard to keep every user or users scheduled about the items above before the

use of this product. As would be realized, the customer may be considered to have acted against the agreement when the user of this product acted against it.

Disclaimer in usage of the SD card

（1） The folder / file in the Memory card (SD card) please do not perform a change

(addition and deletion) or a format from PC. When I changed it, normalcy does not work.

（2） When I delete a data file in the memory card (SD card), please carry out deletion by using

the main body of MODEL 4431.

＜Contents of the Memory card (SD card)＞

STD・・・・・・・The folder of the data file of the normal measurement

001.csv ・・ nnn.csv

TM5・・・・・・・Power average value of the maximum sound pressure level in a given interval

001.csv ・・ nnn.csv

The data file （File name：001.csv～999.csv）

The data file

（File name：001.csv～999.csv）

6

The Quantifier form of International standard and JIS (Japanese Industrial Standards).

The Quantifier is excerpted from ISO 1996、3891、IEC 60804、JIS Z 8202、8731.

Notation of

MODEL4431

Name

LA A-weighted sound

pressure level

LC C-weighted sound

pressure level

LP

L

Equivalent continuous

Aeq

Sound pressure level

A-weighted sound pressure level

L

Equivalent continuous

Ceq

sound pressure level

Leq Equivalent continuous

sound

pressure level LAE A-weighted LAE LAE LAE LCE C-weighted

Sound exposure level

LE

L

5% of the percentile

A05

sound

pressure level

L

10% of the percentile

A10

sound pressure level

LAN

L

50% of the percentile

A50

sound pressure level

L

90% of the percentile

A90

sound pressure level

L

95% of the percentile

A95

sound pressure level

L

Maximum sound

Amax

pressure

level

L

Minimum sound

Amin

pressure

level

L

Peak sound pressure

Cpeak

level

Frequency

weighting

characteristics

ISO IEC JIS

A-weighted LpA

C-weighted

Z-weighted LP A-weighted L

Aeq ,T

C-weighted

Flat

A-weighted L

AN,T

A-weighted

C-weighted

－

LpA

－－－

L

LP

Aeq ,T

－

L

－

Aeq ,T

Ceq, T

－－－

－－－－－－

L

A5,T

A10,T

A50,T

A90,T

A95,T

－

L

AN,T

－－－

－

L

Cpeak

－

L

A5,T

A10,T

A50,T

A90,T

A95,T

7

Contents

Overview Locations and their functions 9

Front / Back / Side view of the main body 9 Operating Portion 10 Side view of the main body 11

System components 12

AC adaptor AC-1026 13 Mounting on the tripod 13 Memory Card（SD card）and program card(Option) 13 Extension Cable（BC-0046） 13 Connection with printer（BS2-80TS） 13 Level recorder （TYPE 5008A） 13 Connection with personal computer 14

Display (Explanation of measurement screen )

Measurement screen 15～16

Preparation

Battery installation 17 LCD back-light 18 LCD adjustment 19 Calendar adjustment 20 Calibration 21～22

Menu screen 23～27 Measuring Procedure

Sound pressure level（Lp）measurement ： Frequency weighting key Z 28 Temporal level display of Sound pressure level（Lp）measurement 29 A-weighted sound pressure level（LA/LC）：Frequency weighting key A,C 30 Time level display of A-weighted sound pressure level（LA/LC） 31 Equivalent continuous A-weighted sound pressure level（L Single event sound exposure level（LAE）measurement 33 Maximum A-weighted sound pressure level（L Minimum A-weighted sound pressure level（L

Amax

）,

Amin

Precentile level（LAN）measurement 35 Preak sound pressure level（L C-weighted preak sound pressure level （L

）measurement 36

peak

）measurement 37

cpeak

C-weighted equivalent continuous sound pressure level （L Power average value of the maximum sound pressure level in a given interval（L

measurement 39

Impulse sound pressure level（LAI）measurement 40 Impulse equivalent continuous A-weighted sound pressure level (L

measurement 41

Memory function

Record of memory 【Nomal】mode, 【Auto】mode 42～45 Data recall from the memory 46 How to use the Memory card (SD Card -Standard-) 47～48

Example of file creation 49

Print/Data management

Print 50 Saveing Data to PC 51

Out put terminal 52 Specifications 53～55 Pin Connections and How to Connect the Extension cable 57～58

Communication Command 59～64

）measurement 32

Aeq

）measurement 34

）measurement 38

Ceq

)

AIeq

Atm5

8

）

8

Overview

This specification refers to the Sound Level Meter MODEL4431.It covers most measurands corresponding to JIS and –ISO.The 4431, provided with many functions usually mounted in equivalent products, has been realized at an extremely low price. Measurement of most measurands, such as Equivalent continuous A-weighted sound pressure level (L The 4431 was developed to keep comfortable sound environment as well as safe and healthy life of people, both to be realized by the evaluation of environmental noise such as traffic noise or industrial equipment noise, or by better understanding of the labor health environment at offices, factories, etc. The impressive design of 4431 symbolizes satisfactory operations and many performances related to JIS and/or IEC. It sure is a highly efficient and highly reliable precision sound level meter, to be supported by the next generation.

), Sound exposure level (LAE), A-weighted sound pressure level (LA), etc., is possible.

Aeq

Features

● Excellent cost/performance ；covers most measurands in current criteria

● The “0-dB” function 【 world first 】(option) ；measurement of the noise of ultra-low sound pressure level is possible.

The function displays the greatest force in the evaluation of “quietness” or sound quality of silent model of recent IT/OA equipments, as well as in those of air-conditioning noise level or sound isolation capability of newly built concert halls where the room ambient noise is below "NC-20 .

● Percentile sound pressure level (LN) ；any 5 selectable values is available

● Measurement of Equivalent continuous A-weighted sound pressure level (L

；Measurement of environmental noise required to secure occupational heal

● Wide linearity range of 100dB ；Covers wide range of 20~130dB

● Equipped with an USB Ver1.1 function；allows data processing for PC

● Equipped with a memory function ；realized by in built-in memory or memory card.

● Backlight LCD screen for high ；visibility and easy-on-the eye display

● Timer function ；measurement can be paused or restarted at any

point of time by installing the function.

● Abundant program cards(Option) ；1/1and 1/3-octave Real-time analysis card, FTT

analysis Card, RSR card (Real sound recording Card), etc.

Aeq

)

Configuration

1）Sound Level Meter MODEL4431 1 2）Memory Card ( SD Card ) 1 3）Windscreen(φ50) 1 4）Batteries LR6 4 5）Screwdriver 1 6）Hand strap 1 7）Instruction manual 1 8）Carrying case 1 9）Option

・1/1 and 1/3-octave Real-time Analysis Card NA-0038 ・FFT Analysis Card NA-0038F ・RSR Card ( Real Sound Recording Card ) NA-0038R ・Data management software NA-0038M ・0-dB function (0~80dB(A)) 4431(0dB) ・AC adapter AC-1026

・Output cable(BNC pin cord) BC-0071 ・USB interface cable BC-0038PC ・Extension cable(2m～30m) BC-0046-2～30

・Tripod exclusively for sound level meter NA-0333

・Sound calibrator TYPE2127

9

Locations and their functions

Front/Back/Side view of the main body:

Wind screen(φ50)

Microphone

Preamplifier

Threaded retaining ring

Front panel

Display

Side panel

Female screw for tripod

Front

Microphone Preamplifier

The microphone and the preamplifier are comprised as one body. They can be placed apart from the main body and connected to it with the optional

extension cable

Display

It is a liquid crystal display with backlight. The sound level is displayed here with

numerical value or bar graph. The operation condition of the sound level meter, setting condition of the measurement mode, various alerts, etc. are also displayed.

Windscreen(φφφφ50)

The measurement error may be caused in the windy outdoor site or noise measurement of ventilator, since the wind drives against the microphone generating the wind noise. Under such conditions, it is possible to reduce the wind noise by attaching the φ50 windscreen to the microphone

Strap

Used to prevent unexpected drop of the main body. Please put it through your wrist when

you measure with the body in hand.

Back

Female screw for tripod

It is possible to mount the main body to this tripod for the camera with screw.

Batteries case

Put four LR6 type Alkali dry batteries.

Female screw for tripod

Battery cover

10

Operating Portion

Light key

The backlight illuminates the display in darkness, which goes out automatically 30 seconds later or by pushing the key again.

Menu key

It is pushed to set up the measurement condition, when the display is adjusted to 1/3

page of the menu panel. The item is selected with cursor key ▲▼, and input starts with , as well as the alteration with ▲▼. To go back to the measurement setting screen, push [SET] key again.

Cal key

When the calibration or level setting with the equipment connected, this key is used.

Set key

The key to be used to fix the input.

Meas. Time key

The key to set the measurement period (interval time terminated with a pair of Star/Stop). It changes on pushing the key as: key is pushed again. 1s, 3s, 5s, 10s, 1m, 5m, 10m, 15m, 30m, and 1h, 8h, 12h, 24h, and *** (Forever: Until Stop).

A・・・・C，，，，Z key

The key to select frequency weighting A, C, and Z (FLAT)

F・・・・S，，，，Imp key

The key to select time-weighting Fast, Slow, and Imp

Range key

Range setting key which enables the following 6 ranges: 20～80、20～90、20～100、20～110、30～120、40～130

Mode Leq ・・・・Lx key

The key to display the calculation results. Each push gives various calculation results selected on the Menu screen.

Card key

The key to use various option cards

Pause key

By pushing the key, the measurement is paused to eliminate any unexpected noise or anomaly during the measurement. It is resumed by pushing the key again. By using the data elimination function, it is possible to exclude the data 3 or 5 seconds before the key is pushed.

Start／／／／Stop key

The key to start the measurement of various mode or to terminate it.

11

Side view of the main body

AC power adaptor connector

By using the optional AC adaptor, AC100V is available for the measurement.

Please do not use any other power supplyies than specified AC adaptor. It may cause breakdown or malfunction.

AC／／／／DC out connector

AC： outputs frequency-weighted AC signal. DC： outputs DC level signal .

External Input/Output connector

Input or output terminal for control signal or measurement data, which can be connected to a printer, level recorder, or personal computer.

Card slot

The slot for memory card or optional program card.

Side panel

AC power adaptor connector

External Input/Output connector

Calibration potentiometer

AC OUT connector

DC OUT connector

Card slot

POWER switch

NOTE

・ Please watch out for the card slot portion when you

have it in hand. The card may jump out.

Inserting and detaching the card

1. Insert the card into the card slot on the side panel.

Press softly the card into the slot until it comes to the end, watching for the direction of the card.

2. Press the card again for detaching it. The card comes off by itself.

12

System configuation

Example of system configuration

※The function can be extended by the connecting various option measuring instruments.

Windscreen（φ90）

NA-0301

Sound Calibrator

TYPE 2127

Sound Level Meter TYPE6236/6238

RS-232C interface cable BC-0026PC

BNC pin cord BC-0071

0-dB function[0～80dB(A)]

Printer BS2-80TS

Piston phone TYPE 2124A

Extension cable for microphone BC-0046

AC adapter AC-1026

USB interface cable BC-0038PC

Tripod exclusively for sound level meter NA-0333

Memory Card（SD Card）

AC adaptor (option)

1) Turn off the power switch.

2) Connect the option AC adaptor to the AC adaptor terminal.

3) Insert the AC plug of the AC adaptor to the AC100V outlet.

Oscilloscope

Data recorder

Level recorder TYPE5008A

Program cards ( SD Card )

1/1 and 1/3-octave Real-time Analysis Card

NA-0038

FFT Analysis Card

NA-0038F

Real Sound Monitor Card

NA-0038R

PC

Data management software

NA-0038M

NOTE

Please do not use any other power supplies than specified AC adaptor. It may cause breakdown or malfunction.

AC power adaptor connector

AC adaptor

to AC100V outlet

13

Mounting on the tripod

It is possible to mount this equipment on the camera tripod in lengthy measurement.

Please be careful enough not to drop the equipment or fell the tripod

Memory card (SD card) and program card (Option)

The measurement results can be stored in Memory card (SD card) to reedit it on personal computer Moreover, option program cards enable to set up the conditions of 1/1 or 1/3 octave filter card, FFT analysis card, and RSR card (Real sound recording card)

Extension cable (BC-0046)

Please make sure to switch off the power when connecting or disconnecting the microphone extension cable. To avoid the influence of diffraction effect of the sound level meter body, or of the existence of the measuring person, microphone can be placed away from the main body. Please refer to “Pin Connections and How to Connect Extension cable” in P51 for further information.

NOTE

Never separate the microphone from the preamplifier, which may cause breakdown or malfunction

Connection with printer （（（（BS2-80TS））））

Connect the serial input terminal of printer (BS2-80TS) to I/O terminal on the side panel with RS-232C interface cable (BC-0026PC). (both available as option).

I/O terminal

Printer cable

To printer To serial input terminal

Level recorder (TYPE 5008A)

How to record the sound pressure level Connect AC output connector on the side panel to level recorder with output cable (BC-0071 : Option) as shown in the following figure.

AC output connector

To input terminal of the level recorder

Output cable

14

Connection with personal computer

External connect I/O on the side panel to USB terminal of personal computer with the option interface cable.

External I/O connector

USB cable

To USB terminal of personal computer

15

Display (Explanation of measurement screen)

Measurement screen

Measurement time

Displays the elapsed time of the measurement

With [Start/Stop] key entry, time count operation is carried

１０

１０ｍｍｍｍ

１０１０

９９

９９ｈｈｈｈ６０

９９９９

94.0

94.094.0

40 Cal 130

40 Cal 13040 Cal 130

Rec Un A Fast Leq

Rec Un A Fast LeqRec Un A Fast Leq

Displayed when the measured value exceeds the range selected, as well as Un

when the input l level is lower than the selected range.

Ov : Over ；＋3dB from upper limited scale Un : Under ；－0.6dB from lower limited scale

Displays operation condition y

Rec blinking: Under the measurement started with [Start/Stop] key pushed.

Stp blinking: Measurement terminated

Measurement time

The measurement time is displayed, which is one of the following :. 1s、3s、5s、10s、1m、5m、10m、15m、30m、1h、8h、12h、24h、＊＊＊(Forever: Until

[Start/Stop] key entry)

Pause (Temporary interruption mark)

Blinks when the calculation or data saving to memory is canceled, where displayed level is not updated

６０ｍｍｍｍ６０

６０６０

６０ｓｓｓｓ

６０６０

dB

Fast: Time weighting characteristics: Displays the dynamic characteristics selected with [F････S Imp] key. (Fast, Slow or Impulse)

A: Frequency weighting characteristics: Displays the frequency weighting selected with [A,C,Z] key.

[Freq Corr] button. (A, C, Z)

out until completion of the measurement time.

Display data: Displays the current value numerically.

Remaining capacity of battery.

Bar: Displays the current instantaneous level.

Display Range: Displays upper and lower limit of the bar graph displayed Displays the upper and lower limit of the range for bar graph to be displayed, selected according to the magnitude of sound level.

Cal、、、、Pause、、、、Card：Displays calibration, pause, and card insertion, respectively. Displays “Calibration” with [Cal] key, Pause with Pause key, and Card with card inserted, respectively.

Leq：Measurement mode. Displays the mode selected with [Mode] key. (Lp, Leq, Lmax・・・・・・・

・・・・・・・)

・・・・・・・・・・・・・・

16

20

2020

20

80

8080

80

80dB

dB

Frequency characterisitic and Calculation function

Style A C Z Sound pressure level LA LC Lp Equivalent continuous sound pressure level L Sound exposure level LAE LCE LE Maximum sound pressure level

Minimum sound pressure level

Percentile (5%) sound pressure level

Percentile sound

pressure level

（LAN）

Peak sound pressure level Power average of maximum sound pressure level in a

given interval Impulse sound pressure level Impulse equivalent continuous sound pressure level

Display example

＜Measurement screen＞

Percentile (10%) sound pressure level Percentile (50%) sound pressure level Percentile (90%) sound pressure level Percentile (95%) sound pressure level

＜Menu screen＞

L L

L L L L L

L

Aeq

Amax

Amin

A05

A10

A50

A90

A95

―

Atm5

LAI

AIeq

L

Leq

Ceq

― ― ― ― ― ― ― ― ― ― ― ― ― ―

L

Cpeak

― ―

― ― ― ―

peak

１０

１０ｍｍｍｍ０００

１０１０

０００ｈｈｈｈ００

００００００

38.6

38.6 dB

38.6 38.6

００ｍｍｍｍ０５

００００

０５ｓｓｓｓ

０５０５

dB

dBdB

Stp

Stp A

＜Example of T-L (time level) display＞

StpStp

38.6

Fast Lp

A Fast Lp

A A

20

Fast Lp

Fast Lp Fast Lp

Data

<System><System> Mode

Mode ：：：：Norma

ModeMode Data delet

Data delet ：：：：off

Data deletData delet LCD cont

LCD cont ：＊＊＊

LCD contLCD cont Date

Date y/m/d

y/m/d ：：：：01/01/01

DateDate

y/m/d y/m/d

Tim

Time h/m/s

e h/m/s ：：：：00000:00:00

TimTim

e h/m/se h/m/s

Printer(pc)set

Printer(pc)set：：：：9600

Printer(pc)setPrinter(pc)set USB out

USB out ：：：：OFF

USB out USB out

1/3

Normal

NormaNorma off

offoff

：＊＊＊

：＊＊＊：＊＊＊

01/01/01

01/01/0101/01/01

0:00:00

0:00:000:00:00

9600

96009600

OFF

OFFOFF

1/3

1/31/3

l

l l

17

Preparation

It will blink,

Battery installation

When LCD display tells low battery, install new batteries.

For long-term measurement, install new batteries in advance.

The following displays tell you the condition of the batteries.

The battery residual quantity display are the 5 stages like the following.

FULL

LOW

EMPTY

Replace batteries

To install new batteries:

1) Turn off the POWER switch.

2) The slide is done while pushing the battery lid by the thumb.( Refer to the figure below).

3) Put the new batteries in the case, then shut the cover. The inside of the case shows you the

direction of the batteries.

NOTE

Do not put the batteries in the wrong direction. These four batteries should be replaced at the same time.

“OPEN” pushing and slide in the direction of the arrow.

・Battery life is approximately:

9 hours (Alkaline batteries, continuous operation)

・Use of LCD back-light shortens the life of the batteries (approximately 1/3). ・Please prepare the AC adaptor AC-1026(option) in advance when it is used for a long period of time.

if"ENPTY" is displayed, and a power supply is shut off.

18

LCD back-light

You can use LCD back-light, when your measurement is carried out in the dark situations.

[Light] key

1) Press [Light] key, LCD back-light goes on.

2) If you press [Light] key again, LCD back-light goes out.

The light automatically goes out in about 30 seconds after the light goes on.

3) When the batteries is low, LCD back-light dims.

NOTE

Use of LCD back-light shortens the life of the batteries.

19

LCD adjustment

You can adjust LCD contrast, when the batteries were low, or when the new batteries were installed. The procedure is as follows.

1) When you press the [Menu] key, the following screen appears.

2） Select LCD cont with Cursor key ▼, then move the cursor rightward with key.

3）Adjust the LCD contrast with ▲▼ key, then press [Set] key to save the setting.

After pressing [Set] key, the cursor moves to leftward.

4）If you want to go back to measurement mode, press [Set] key.

[Menu] key

[Set] key

<System><System> Mode

Mode ：：：：Normal

ModeMode Data delet

Data delet ：：：：off

Data deletData delet LCD cont

LCD cont ：＊＊＊

LCD contLCD cont Date

Date y/m/d

y/m/d ：：：：00/00/00

DateDate

y/m/d y/m/d

Time

Time h/m/s

h/m/s ：：：：00:00:00

TimeTime

h/m/s h/m/s

Printer(pc)set

Printer(pc)set ：：：：9600

Printer(pc)set Printer(pc)set USB out

USB out ：：：：OFF

USB out USB out

Normal

Normal Normal off

offoff

：＊＊＊

：＊＊＊：＊＊＊

00/00/00

00/00/0000/00/00 00:00:00

00:00:0000:00:00

9600

96009600

OFF

OFFOFF

1/3

1/31/3

Cursol key

LCD adjustment

20

Calendar adjustment

To adjust the calendar (time), operate as follows. You can adjust calendar in the Menu mode in the same way as LCD adjustment.

When you press the [Menu] key, the following screen appears

【Calendar adjustment】１） Select date y/m/d with Cursor key ▼, then move the cursor rightward with key. ２）Set the year/month/day with ▲▼ key, then press [Set] key to save the setting. After pressing [Set] key, the cursor moves to leftward.

【Time adjustment】１） Select time with Cursor key ▼, then move the cursor rightward with key. ２）Set the hour:minute:second with ▲▼ key, then press [Set] key to save the setting. After pressing [Set] key, the cursor moves leftward.

３）If you want to go back to the measurement mode, press [Set] key.

[Menu] key

[Set] key

Mode

Mode ：：：：Normal

ModeMode

Data delet

Data delet ：：：：off

Data deletData delet

LCD cont

LCD cont ：＊＊＊

LCD contLCD cont

Date

Date y/m/d

y/m/d ：：：：00/00/00

DateDate

y/m/d y/m/d

Time

Time h/m/s

TimeTime

Printer(pc)set

Printer(pc)set ：：：：9600

Printer(pc)set Printer(pc)set

USB out

USB out ：：：：OFF

USB out USB out

1. If you want to go back to the measurement mode, press [Set]key.

h/m/s ：：：：00:00:00

h/m/sh/m/s

Be sure to enter the date (date y/m/d) in the order of “year → month → day.” Input any figure of; y(year): 00 – 99, m(month):01 – 12, and d(day): 01 – 31.

Ex.) For November 30, 2003 Correct) 03/11/30 Incorrect) 11/30/03 30 has been entered for m(month). Input any figure of

Be sure to enter the time in the order of “hour → minute → second.” Input any figure of; h(hour): 00 – 24, m(minute): 00 – 59, s (second) 00 – 59.

Ex.) For 23:58:32 Correct) 23/58/32 Incorrect) 32/58/23 32 has been entered for h(hour). Input any figure of

Normal

Normal Normal off

offoff

：＊＊＊

：＊＊＊：＊＊＊

00/00/00

00/00/0000/00/00 00:00:00

00:00:0000:00:00

9600

96009600 OFF

OFFOFF

1/3

1/31/3

01 through 12.

00 through 24.

Date adjustment

Time adjustment

NOTE

Cursor key

NOTE

You are recommended to set the built-in IC timer right before measurement, since it could show the wrong time.

21

Calibration

９４

９４９４

９４

．．．．

００００

ｄＢ

ｄＢｄＢ

ｄＢ

You need to calibrate the instrument regularly before you start taking measurements. There are two types of calibration. One is the way using the internal generator, the other is the way using the pistonphone. Note that calibration is disabled when “Peak measurement” is selected

Calibration using internal generator You can calibrate the instrument using the internal generator (1kHz, sine wave)

[Cal] key

[Range] key

1) Turn on the POWER.

2) Press [Cal] key.

3) Press [Range] key, and choose ‘100dB’ by cursor keys ▲▼, and press [Range] key again to

register.

4) Adjust the calibration potentiometer on the side panel until the display shows 94dB.

5) If [Cal] key is pressed once again, the calibration is completed.

＜＜＜＜ Calibration display ＞＞＞＞

＜＜＜＜ Side panel ＞＞＞＞

＜＜＜＜ Reference＞＞＞＞ Full scale range and Cal(the display shows)

１０

１０ｍｍｍｍ

０００

１０１０

20

2020

Stp

StpStp

０００ｈｈｈｈ００

００００００

Cal

AAAA Fast

００ｍｍｍｍ０５

０５ｓｓｓｓ

００００

０５０５

Cal 100

Cal Cal

Fast L

Fast Fast

Full scale range

(dB)

80 74.0 0.500 2,350

90 84.0 0.500 2,350 100 94.0 0.500 2,350 110 104.0 0.500 2,350 120 114.0 0.500 2,350 130 124.0 0.500 2,350

100

100100

LA

LL

Cal flashes on and off

A

AA

Calibration potentiometer

CAL

(dB)

OUTPUT（V）

AC OUT DC OUT

22

Pistonphone ( MODEL 2124 A) or Calibration using Sound Calibrator ( MODEL 2127 )

Lp

LpLp

Lp

LLLL

1) Turn off the POWER of Pistonphone (MODEL 2124A) or Sound Calibrator (MODEL 2127).

2) Turn on the POWER of this equipment

3) For the Pistonphone, Set the frequency weighting to Z with Frequency weighting key, set

the time weighting to Fast with Time weighting key and set the range to 40～130dB with [Range] key.

For the Sound Calibrator, Set the frequency weighting to Z with Frequency weighting key, set the time weighting to Fast with Time weighting key and set the range to 20～100dB with [Range] key.

4) Insert microphone of this equipment to Pistonphone ( MODEL 2124A ) or Sound Calibrator

( MODEL 2127 ).

5) Switch on the Pistonphone ( MODEL 2124A ) or Sound Calibrator ( MODEL 2127 ).

6) Adjust the calibration potentiometer on the side panel until the display shows a output

level of the pistonphone (standard value is 124dB) and a output level of the sound Calibration (standard value is 94dB).

＜＜＜＜Pistonphone in use＞＞＞＞＜＜＜＜ Sound Calibrator in use ＞＞＞＞

1111ｓｓｓｓ

１２４

１２４．．．．０

１２４１２４

40

4040

Stp

Stp ZZZZ Fast

StpStp

CAL key

０００

０００ｈｈｈｈ００

００００００

００ｍｍｍｍ００

００ｓｓｓｓ

００００

０ｄ

００

ｄｄｄＢＢＢ

130

Fast

Fast Fast

Ｂ

130

130130

Range key

1111ｓｓｓｓ

０００

０００ｈｈｈｈ００

００ｍｍｍｍ００

００００００

９９９９４４４４．．．．０

22220000

Fast

AAAA

Insertion and extraction of the microphone to/from the sound calibrator should be made slowly and softly. Rapid insertion and extraction may cause strong force to the diaphragm of the microphone due the air pressure change, which may then give a severe damage to the microphone.

Stp

StpStp

NOTE

００ｓｓｓｓ

００００

０ｄ

００

1

Fast

Fast Fast

Ｂ

ｄｄｄＢＢＢ

1110000000

0

AAAA

23

Menu screen

<System>1/3 → <Memory> 2/3 → <View Mode> 3/3 → <System> 1/3 → <Memory> 2/3 ・・・

Menu key

With [Menu] key pressed, the following Menu screen appears. (Under the situation with [Start/Stop] key not pressed).

・・・

・・・・・・

Each [Menu] key pressed, you can select one of three screens as above, and return to the measurement setting screen. . Select an item with cursor keys ▲ ▼, start the input with , and fix the change with [Set] key. Move to the item to change and return to the measurement setting screen with [Set] key again. In the use of option card (filter card), additional setting screen appears. Please refer to the manual of each option card for the details .

<System><System> Mode

Mode ：：：：Normal

ModeMode Data delet

Data delet ：：：：off

Data deletData delet LCD c

LCD cont

ont ：＊＊＊

LCD cLCD c

ontont

DDDDate

ate y/m/d

y/m/d ：：：：01/01/01

ateate

y/m/d y/m/d

Time

Time h/m/s

h/m/s ：：：：00:00:00

TimeTime

h/m/s h/m/s

Printer(pc)set

Printer(pc)set ：：：：9600

Printer(pc)set Printer(pc)set USB out

USB out ：：：：OFF

USB out USB out

<View Mode><View Mode> Lp

Lp ：：：：INST

Lp Lp (A)View

(A)View LA05

(A)View (A)View LAeq

LAeq ：：：：ON

LAeq LAeq LAE

LAE ：：：：OFF LA50

LAE LAE LLLLAAAAmin LLLLAAAAmax

Each change made with various key operations are registered and reproduced on next Power ON operation.

INST

INST INST

ON LA10

ON ON

OFF LA50 ：：：：OFF

OFF LA50 OFF LA50

min：：：：ON

ON LA90

minmin

ON ON

max：：：：ON

ON LA95

maxmax

ONON

1/3

Normal

Normal Normal off

offoff

：＊＊＊

：＊＊＊：＊＊＊

01/01/01

01/01/0101/01/01 00:00:00

00:00:0000:00:00

9600

96009600

OFF

OFFOFF

3/3

LA05 ：：：：OFF

LA05 LA05 LA10 ：：：：OFF

LA10 LA10

LA90 ：：：：OFF

LA90 LA90

LA95 ：：：：OFF

LA95 LA95

1/3

1/31/3

3/3

3/33/3

OFF

OFFOFF OFF

OFFOFF

OFF

OFFOFF

OFF

OFF OFF

<Memory><Memory> Mode

Mode ：：：：Normal

ModeMode Interval

Interval ：：：：Single

IntervalInterval

2/3

Normal

Normal Normal Single

SingleSingle

2/3

2/32/3

24

<System> (1/3)

<System><System> Mode

Mode ：：：：Normal

ModeMode Data delet

Data delet ：：：：off

Data deletData delet LCD cont

LCD cont ：＊＊＊

LCD contLCD cont Date

Date y/m/d

y/m/d ：：：：01/01/01

DateDate

y/m/d y/m/d

Time

Time h/m/s

h/m/s ：：：：00:00:00

TimeTime

h/m/s h/m/s

Printer(pc)set

Printer(pc)set：：：：9600

Printer(pc)setPrinter(pc)set USB out

USB out ：：：：OFF

USB out USB out

1/3

Normal

NormalNormal off

offoff

：＊＊＊

：＊＊＊：＊＊＊

01/01/01

01/01/0101/01/01 00:00:00

00:00:0000:00:00

9600

96009600

OFF

OFFOFF

1/3

1/31/3

Item Default Contents

● Meas Mode ：Normal ：Normal ：Normal measurement Print ：Print PC out ：Data management Memory Call ：Display recorded data L

：Tact-max sound pressure level (STD card)

Atm5

Remote U ：Communicate mode(USB) Remote R ：Communicate mode(RS-232C）

● Data delet ：Off ：Data deletion mode setting Off ：Date deletion is disabled Fixed to OFF in Peak mode 3sec ：Data in past 3 sec is deleted when [Pause] key is pressed during the measurement.

5sec ：Data in past 5 sec is deleted when [Pause] key is pressed during the measurement . ※The function is disabled for Meas Time 1, 3 or 5 sec,.

● LCD cont ： ***** ：Adjustment of LCD contrast

See “LCD adjustment” section for the details.

● Date y/m/d ：00/01/01 ：Calendar setting (date: 2000/01/01) See “Calendar adjustment” for the details.

● Time h/m/s ： 00:00:00 ：Time setting See the “Calendar adjustment” for the details.

● Printer(PC) set ： 9600 ：Baud rate setting

USB Communicate：9600、19200 RS-232C Communicate（remote communication）：9600、19200、38400 RS-232C Communicate （When automatic power supply ON measurement starts）：4800、9600、38400

● USB out ：Digital data output setting

OFF → Lp → LpB → Wave (Outputs data from USB out in parallel with the

measurement.) OFF ；USB output is disabled. Lp ；Outputs instantaneous value in each second

LpB ；Outputs level data in each band when the octave

filter is used. The 1/1, 1/3 Oct real-time analysis card（NA-0038）

is necessary.

Wave ；Outputs level data in each band at sampling

rate 48kHz when the octave filter is used.

25

＜＜＜＜Memory＞＞＞＞(2/3)

Mode

Mode ：：：：Normal

ModeMode

Interval

IntervalInterval

：：：：Single

2/3

Normal

Normal Normal

Single

SingleSingle

2/3

2/32/3

Select to

Mode:Auto

<Memory><Memory> Mode

Mode ：：：：Auto

ModeMode Interval

Interval ：：：：Single

IntervalInterval I/O

I/O ：：：：OFF

I/O I/O Level

Level ：：：：65dB

Level Level Samp Time

Samp Time ：：：：Meas Time

Samp Time Samp Time Sta

Sta：：：：08/10/10

08/10/10 18:16:00

StaSta

08/10/10 08/10/10

Stp

Stp：：：：08/10/12 20:16:00

08/10/12 20:16:00

StpStp

08/10/12 20:16:0008/10/12 20:16:00

2/3

Auto

Auto Auto Single

SingleSingle

OFF

OFFOFF

65dB

65dB65dB Meas Time

Meas TimeMeas Time

18:16:00

18:16:0018:16:00

2/3

2/32/3

Select to Mode:Start

<Memory><Memory> Mode

Mode ：：：：Start

ModeMode Interval

Interval ：：：：Repeat

IntervalInterval I/O out

I/O out ：：：：232C

I/O out I/O out

2/3

Start

StartStart Repeat

RepeatRepeat

232C

232C232C

2/3

2/32/3

Items Default Explanation

● Mode ：Normal ：Normal：Basic setting Auto ：Automatic measurement, where the following items are available.

Start ：Start of power supply ON automatic measuring system. （It records on the memory card simultaneously）

● Interval ：Single ：Measuring interval setting

Single ：The measurement starts with [Start/Stop] key and is terminated at Meas Time selected . Repeat ：The measurement starts with [Start/Stop] key and is repeated in every Meas Time selected until [Start/Stop] key is pressed.

【When Mode:Auto is selected, the following items can be specified】

● I/O ：OFF ：External output setting

OFF ：Default (Data output is disabled).

ON ：Outputs data for one second when the data

mory mode is active.

● Level ：65dB ：65dB ：Threshold level is registered (when the level

exceeds it, recording starts), within the range 20-130dB at resolution 1dB

● Samp Time ：Meas Time：Meas Time：sampled at interval equal to Meas time. 100ms ：sampled at interval 100ms (0.1s). 200ms ：sampled at interval 200ms (0.2s). 1s ：sampled at interval 1s ** Meas Time is time set with [Meas Time] key (1s～-･･･).

＊ Select 10s or more in L

Fixed to Mease Time, when when RSR card is installed.

measurement.

Atm5

● Sta ： Registers the starting time for recording (YY/MM/DD HH/MM/SS)

(Year/Month/Date, date time/minute/second).

● Stp ： Registers the stop time for recording (YY/MM/DD HH/MM/SS)

(Year/Month/Date, date time/minute/second).

26

NOTE

Measurement starts when the selected level is exceeded after the time specified with Sta Time, In the following example :

：When the level exceeds 65dB after 18:16 October 10,

Recording starts and the measurement is made once during the time specified with Meas Time. Recording is continued, in Interval Repeat mode, until the level falls or until 20:16 October 12,. Data is shown according to System Mode.

【When Mode:Start is selected, the following items can be specified】

● I/O ：232C ：Selection of interface. 232C ：RS-232C USB ：USB

※The following items become fixation (It is not possible to change).

<System><System> Mode

Mode ：：：：Normal

ModeMode Data delete

Data delete ：：：：off

Data deleteData delete

LCD cont

LCD cont ：＊＊＊＊＊

LCD contLCD cont Date

Date y/m/d

y/m/d ：：：：01/01/01

DateDate

y/m/d y/m/d

Tim

Time h/m/s

e h/m/s ：：：：00000:00:00

TimTim

e h/m/se h/m/s

Printer

Printer(pc)set

PrinterPrinter USB out

USB out ：：：：OFF

USB out USB out

(pc)set：：：：4800

(pc)set(pc)set

1/3

0:00:00

0:00:000:00:00

1/3

1/31/3

Normal

Normal Normal off

offoff

：＊＊＊＊＊

：＊＊＊＊＊：＊＊＊＊＊

01/01/01

01/01/0101/01/01

4800

48004800

OFF

OFFOFF

Fixation

2/3

2/32/3

Mode

Mode ：：：：Start

ModeMode Interval

Interval ：：：：Repeat

IntervalInterval

I/O out

I/O out ：：：：232C

I/O out I/O out

Start

StartStart Repeat

RepeatRepeat

232C

232C232C

Fixation

●Level Range ：20～100dB (Fixation)

<View Mode><View Mode> Lp

Lp ：：：：INST

LpLp (A)View

(A)View LA05

(A)View(A)View LAeq

LAeq ：：：：ON

LAeq LAeq LAE

LAE ：：：：OFF

LAE LAE LAmin

LAmin：：：：ON

LAminLAmin LAmax

LAmax：：：：ON

LAmaxLAmax

3/3

INST

INST INST

LA05 ：：：：OF

LA05 LA05

ON LA10

LA10 ：：：：OFF

ONON

LA10 LA10

OFF LA50

LA50 ：：：：OFF

OFFOFF

LA50 LA50

ON LA90

LA90 ：：：：OFF

ONON

LA90 LA90

ON LA95

LA95 ：：：：OFF

ONON

LA95 LA95

3/3

3/33/3

OFFFFF

OFOF OFF

OFFOFF OFF

OFFOFF

Fixation

●Time weighting ：Fast (Fixation)

●Frequency weighting ：A (Fixation)

NOTE

・ When Start is selected, it becomes a measurement beginning in［［［［Start/Stop］］］］key input or

power supply ON of this equipment.

・ When Start is selected, the operation result is recorded on the memory card every set time

of "Meas.Time".

・ When Start is selected, cards other than the memory card cannot be used. Please change to

modes other than Start when you use other cards. When optional card is inserted after this power supply ON of this equipment ：［［［［Card］］］］key invalid operation At this equipment power supply ON after inserting an optional card ：［［［［Card］］］］key invalid operation or ”Card ERR”is displayed. ・ The RS-232C/USB output is continuously output though the card record stops at that time

when the record of the memory card becomes FULL while measuring it. In this case, please

copy data in the memory card to the personal computer etc. once, and execute the deletion

of the data file of the memory card from this equipment.

27

Lp

：I

nstantaneous value

＜＜＜＜View Mode＞＞＞＞ 3/3

63.5 dB

Select the category of displayed data. The data registered here is displayed in the standard screen, one by one with [Mode] key pressed on the main body.

・ When TACT is selected for Lp, [LaT] is displayed in display mode.

＜Display＞ When Lp is TACT

Lp

Lp ：：：：INST

LpLp

(A)View

(A)View LA05

(A)View(A)View

LAeq

LAeq ：：：：ON

LAeq LAeq

LAE

LAE ：：：：OFF

LAE LAE

LAmin

LAmin：：：：ON

LAminLAmin

LAmax

LAmax：：：：ON

LAmaxLAmax

Items Default Explanation

● L ：INST ：INST ：Data is displayed in each second TACT ：The maximum level is displayed in one second.

In each [Mode] key pushed in the measurement screen, display changes as follows :

・ LA→Leq→LE→Lmin→Lmax→L０５→L10→L50→L90→L95

１０

１０ｍｍｍｍ０００

１０１０

40

130

4040

Stp

StpStp

Z

3/3

INST

INST INST

LA05 ：：：：OFF

LA05 LA05

ON LA10

LA10 ：：：：OFF

ONON

LA10 LA10

OFF LA50

LA50 ：：：：OFF

OFFOFF

LA50 LA50

ON LA90

LA90 ：：：：OFF

ONON

LA90 LA90

ON LA95

LA95 ：：：：OFF

ONON

LA95 LA95

Leq ：Equivalent continuous A-weighted sound

LE ：Single event sound exposure level Lmin ：Minimum A-weighted sound pressure

Lmax ：Maximum A-weighted sound pressure

Lpeak ：Peak sound pressure level

０００ｈｈｈｈ００

００００００

００ｍｍｍｍ００００0000ｓｓｓｓ

００００

130

130 130

Z Fast L

Fast LA

Z Z

Fast L Fast L

3/3

3/33/3

OFF

OFFOFF OFF

OFFOFF

(TACT MAX)

pressure level

level

AT

T

AA

TT

Display mode In the case of Lp：TACT Z：LPT A：LAT C：LCT

28

63.5 dB

Measurement Procedure

Sound pressure level ((((Lp)))) measurement：：：：Frequency weighting key Z

①Frequency weighting key

②Display mode key

＜＜＜＜ Parameter setting ＞＞＞＞

①Frequency weighting key ：Z

③Time weighting key ：F, S or Imp

【Method of selecting RangeKey】 Press [Range] key, and choose by cursor keys▲▼, and press [Range] key again to register.

＜＜＜＜ Display ＞＞＞＞

(A･C, Z)

Measure ment is made according to the following procedure.

②Display mode key ：Lp

④Range key ：Select a range where the bar graph indicates

approximately 2/3 of the full scale.

③Time weighting key

(F:Fast, S:Slow, Imp: Impulse

④[[[[Range] key

１１１１ssss

０００

０００ｈｈｈｈ００

００００００

００ｍｍｍｍ００００0000ｓｓｓｓ

００００

40

130

4040

130

130 130

Stp

StpStp

Z

Z Fast Lp

Z Z

Fast Lp

Fast Lp Fast Lp

Time weighting key：Fast, Slow or Imp

Frequency weighting key ：Z(Flat)

Display mode Lp

29

Temporal level display of Sound pressure level (Lp)

Fast

38.6

Fast

63.5

＜＜＜＜ Parameter setting ＞：

The temporal level is displayed at each contiguous push (1.5s) of [Mode] key as follows,

returning to the standard display screen when the key is pushed again.

The key operation is similar to the measurement of sound pressure level (Lp).

＜＜＜＜ Display ＞＞＞＞

③Instantaneous level：

Per second display

②Frequency

weighting key：

Fast, Slow or Imp

④Display mode key

The instantaneous level is displayed at each about 300ms from right to left.

Data hold

By pushing the [Pause] key, the blinking letter “Pause“ is displayed at the center of the bar

graph, displaying the present instantaneous level. Note that the bar graph itself doesn't pause.

＜Standard display＞

Pause →→→

＜Temporal level display＞

・By pushing the [Pause] key is pushed again, it is released.

＞：

＞：＞：

80dB

dB

Lp

20

①Range

１０

１０ｍｍｍｍ０００

１０１０

Stp

StpStp

130dB

０００ｈｈｈｈ００

００ｍｍｍｍ０５

００００００

００００

63.5 dB

63.5 dB63.5 dB

Pause

40

4040

PausePause

130

Z

130

130 130

Z Fast

Fast Lp

Z Z

Fast Fast

Pause

dB

Lp

60

０５ｓｓｓｓ

０５０５

Lp

Lp Lp

Data

30

A-weighted sound pressure level (LA/LC) measurement：

63.5 dB

：

：：

Frequency weighting key A, C

①Frequency weighting key

②Display mode key

＜＜＜＜ Parameter setting ＞＞＞＞

① Frequency weighting key ：A or C

③ Time weighting key ：F, S or Imp

【Method of selecting [Range] key】 Press [Range] key, and choose by cursor keys▲▼, and press [Range] key again to register.

＜＜＜＜ Display ＞＞＞＞

(A･C, Z)

Measurement is mede according to the following procedure

② Display mode key ：L

④ Range key ：Select a range where the bar graph indicates

, L

A

C

approximately 2/3 of the full scale.

③Time weighting key

(F:Fast, S:Slow, Imp: Impulse

④[Range] key

１１１１ｓｓｓｓ

０００

０００ｈｈｈｈ００

００００００

００ｍｍｍｍ００

００ｓｓｓｓ

００００

40

130

4040

130

130 130

Stp

StpStp

A

A Fast L

A A

Fast LA

Fast L Fast L

A

AA

Time weighting：Fast, Slow or Imp

Frequency weighting：A or C

Display mode L

or L

A

C

31

Time level display of A-weighted sound pressure level (LA/LC)

Fast

63.5

Fast

63.5

＜＜＜＜ Parameter setting ＞＞＞＞

The key operation is similar to the measurement of A-weighted sound pressure level (LA/LC).

＜＜＜＜ Display ＞＞＞＞

Instantaneous value：

Per second display

③Time weighting key：

Fast, Slow or Imp

②Display mode key

The instantaneous level is displayed at each about 300ms from right to left.

130dB

dB

LA

40

Data hold

By pushing the [Pause] key, the blinking letter “Pause“ is displayed at the center of the bar graph, displaying the present instantaneous level. Note that the bar graph itself doesn’t pause.

＜Standard display＞

Pause →→→

＜Temporal level display＞

・By pushing the [Pause] key again, it is released.

１１１１ssss

０００

63.5 dB

63.5 dB63.5 dB

40

130

4040

Stp

StpStp

130dB

dB

LA

40

①Range

Data

０００ｈｈｈｈ００

００００００

Pause

PausePause

A

A Fast

A A

Pause

００ｍｍｍｍ００

００ｓｓｓｓ

００００

130

130 130

Fast L

LA

L L

A

AA

Fast Fast

32

Equivalent continuous A-weighted sound pressure level (LAeq)

mode key

63.5 dB

63.5 dB63.5 dB

63.5 dB

measurement

①Frequency weighting key (A･C, Z)

⑤Measuring time key

②Display

＜＜＜＜ Parameter setting ＞＞＞＞

1）The key operation is similar to the measurement of A-weighted sound pressure level (LA)

except that it needs [Start/Stop] key input for starting the measurement

(automatic calculation). 2）To display the value Leq, keep the "LAeq” key ON in advance in the <View Mode> 3/3 screen.

① Frequency weighting key ：A

② Display mode key ：Leq ③ Time weighting key ：F or S ④ Range key ：Select a range where the bar graph indicates

approximately 2/3 of the full scale.

【Method of selecting [Range] Key】 Press [Range] key, and choose by cursor keys▲▼, and press [Range] key again to register.

⑤ Measurement time key ：1s、3s、5s、10s、1m、5m、10m、15m、30m、1h、8h、24ｈ

and ＊＊＊(until the [Start/Stop]

＜＜＜＜ Display ＞＞＞＞

1s

００

Measurement

1s 1s

００００００ｈｈｈｈ００

００００

００ｍｍｍｍ００

００００

2) [Menu] key

③Time weighting key

(F:Fast, S:Slow)

④[Range] key

００ｓｓｓｓ

００００

＜＜＜＜Menu＞＞＞＞

<View Mode> 3/3 Lp ：INST (A)View LA05 ：OFF

LAeq

LAeq ：：：：ON

LAeq LAeq

LAE ：OFF LA50 ：OFF LAmin：OFF LA90 ：OFF LAmax：OFF LA95 ：OFF

Stop] key pushed again)

Stop]Stop]

ON LA10 ：OFF

ONON

Rec:Blinking during recording Stp: Holding state

・ Measurement starts with [Start/Stop] key pushed, and ends up automatically at the

measurement time. Digital display indicates the halfway result at the current point of time. ( Display “ Rec “ blinks while the measurement.)

・When Interval is set to Repeat in <Memory> 2/3 screen, the measurement is repeated in every

measurement time. (This is used when continuous measurement is needed.)

・By pushing [Start/Stop] key in course of the measurement, calculation is done using the data so far. ・By pushing [Pause] key in course of the measurement, the calculation can be done without

using the data in the latest 3 or 5 seconds.

・To set this function, see the description of data delete in “Section 4 Menu 2.Menu(1/2) ” . This function can be set in the Data delete in the <System> 1/3 screen. ・When *** is selected, the final data is calculated and displayed only when [Start/Stop] key is

pushed or 199 hours have gone through. ・All the keys do not respond during the measurement : [Start/Stop], [Mode], [Light]

60

130

6060

Stp

StpStp

130

130 130

A

A Fast Leq

A A

Fast Leq

Fast Leq Fast Leq

Frequency weighting：A

Time weighting：Any of F, S or Imp (doesn't

Display mode Leq

influence the measurement.)

33

Single event sound exposure level（（（（LAE））））measurement

63.5 dB

mode key

①Frequency weighting key (A･C, Z)

⑤Measuring time key

①Frequency weighting key ：A

【Method of selecting [Range] key】 Press [Range] key, and choose by cursor keys ▲▼, and press [Range] key again to register.

②Display

＜＜＜＜ Parameter setting ＞＞＞＞

1） The key operation is similar to the measurement of A-weighted sound pressure level

(LA) except that it needs [Start/Stop] key input for starting the measurement

(automatic calculation). 2）To display measurements of LE, input ON to "LAE" beforehand by the Menu item.

②Display mode key ：LE ③Time weighting key ：Any of ④[Range] key ：Select a range where the bar graph indicates

approximately 2/3 of the full scale.

⑤Measurement time key ：1s、3s、5s、10s、1m、5m、10m、15m、30m、1h、8h、24ｈ

and ＊＊＊(to the [Start/Stop] key)

＜＜＜＜ Display ＞＞＞＞

2) [Menu] key

③Time weighting key

(F:Fast, S:Slow,

Imp: I mpulse)

④[Range] key

F, S or Imp (doesn't influence the measurement.)

＜＜＜＜Menu＞＞＞＞

<View Mode> 3/3 Lp ：INST (A)View LA05：OFF LAeq ：OFF LA10：OFF

LLLLAAAAE

E ：：：：ON

E E

LAmin ：OFF LA90：OFF LAmax ：OFF LA95：OFF

ON LA50：OFF

ONON

Measuring time

1s

０００

1s 1s

０００ｈｈｈｈ００

００００００

００ｍｍｍｍ００

００００

００ｓｓｓｓ

００００

40

130

4040

Stp

StpStp

130

130 130

A

A Fast L

A A

Fast LE

Fast L Fast L

E

EE

Display mode LE

Rec:Blinks during recording Stp: Holding state

Frequency weighting ：A

Time weighting：Any of F, S or Imp (doesn't influence the measurement.)

・The measurement is similar to the equivalent continuous A-weighted sound pressure level

(L

).

Aeq

34

Maximum A-weighted Sound pressure Level (L

mode key

63.5 dB

63.5 dB63.5 dB

63.5 dB

time

max/LAmin) Measurement

A

①Frequency weighting key (A･C, Z)

⑤Measuring time key

②Display

2) [Menu] key

③Time weighting key

(F:Fast, S:Slow,

Imp: I mpulse)

④[Range] key

＜＜＜＜Menu＞＞＞＞

<View Mode><View Mode> Lp :INST

Lp :INST

Lp :INST Lp :INST (A)View

(A)View LA05 ：OFF

(A)View(A)View

LAeq ：OFF LA10 ：OFF LAE ：OFF LA50 ：OFF

LAmin

LAmin：：：：ON

LAminLAmin LAmax

LAmax：：：：ON

LAmaxLAmax

3/3

ON LA90 ：OFF

ONON

ON LA95 ：OFF

ONON

＜＜＜＜ Parameter setting ＞＞＞＞

１） The key operation is similar to the measurement of A-weighted sound pressure level

(L

)

Aeq

To display measurements of L

the <View Mode> 3/3 screen item.

( similar in L

①Frequency weighting key ：A

②Display mode key ：L

③Time weighting key ：Fast or Slow

④Range key ：Select a range where the bar graph indicates

【Method of selecting [Range] key】

Press [Range] key, and choose by cursor keys▲▼, and press [Range] key again to register. ⑤Measurement time key ：1s、3s、5s、10s，1m，5m，10m，15m、30m，1h、8h、24ｈ

＜＜＜＜ Display ＞＞＞＞

measurement.)

min

and＊＊＊(to the [Start/Stop] key)

, input ON to "LAmax" beforehand by

max

or L

max

approximately 2/3 of the full scale.

min

3/3

3/33/3

Measurement

Rec:Blinks during recording Stp: Holding state

1s

０００

1s 1s

40

4040

Stp

StpStp

０００ｈｈｈｈ００

００００００

130

A

００ｍｍｍｍ００

００００

130

130 130

A Fast

Fast Lmax

A A

Fast Fast

Frequency weighting ：A

００ｓｓｓｓ

００００

Display mode

Lmax

LmaxLmax

Time weighting：Fast, Slow

L

or L

max

min

35

Percentile level (LAN) measurement

The L

computation is made

mode key

63.5 dB

63.5 dB63.5 dB

63.5 dB

＜＜＜＜Menu＞＞＞＞

①Frequency weighting key (A･C, Z)

⑤Measuring time key

①Frequency weighting key ：A

③Time weighting key ：Fast or Slow

【Method of selecting [Range] Key】 Press [Range] key, and choose by cursor keys▲▼, and press [Range] key again to register.

⑤Measurement time key ：1s、3s、5s、10s，1m，5m，10m，15m、30m，1h、8h、24ｈ

②Display

＜＜＜＜ Parameter setting ＞＞＞＞

1）The key operation is similar to the measurement of A-weighted sound pressure level (LAeq) 2）To display the value Lmax, keep the "LA05 ,LA10 ,LA50 ,LA90 ,LA95" key ON in

advance in the <View Mode> 3/3 screen.

②Display mode key ：L

④Range key ：Select a range where the bar graph indicates

＜＜＜＜ Display ＞＞＞＞

Measuring time

Rec:Blinks during recording Stp: Halting state

and＊＊＊(input to the [Start/Stop] key)

１０

１０ｍｍｍｍ０００

１０１０

40

4040

Stp

StpStp

０００ｈｈｈｈ００

００００００

130

A

(To display the Percentile level (L

N

Measurement.）

approximately 2/3 of the full scale.

００ｍｍｍｍ０５

００００

130

130 130

A Fast

Fast L05

A A

Fast Fast

2) [Menu] key

<View Mode><View Mode> Lp :INST

Lp :INST

Lp :INST Lp :INST

③Time weighting key

(F:Fast, S:Slow,

Imp: I mpulse)

④[Range] key

０５ｓｓｓｓ

０５０５

Display mode

L05

L05L05

Time weighting：Fast, Slow

Frequency weighting ：A

L05 ,L10 ,L50 ,L90 ,L95

(A)View

(A)View (A)View

LAeq ：OFF LA10 LAE ：OFF LA50 LAmin：OFF LA90 LAmax：OFF LA95

at sampling rate 100msec, which tends to influence the acculacy in the condition of measureing time less than 10sec.

LA05

)

N

NOTE

N

3/3

3/33/3

ON

ONON ON

ONON

LA05 ：：：：ON

LA05 LA05 LA10 ：：：：ON

LA10 LA10 LA50 ：：：：ON

LA50 LA50 LA90 ：：：：ON

LA90 LA90

LA95 ：：：：ON

LA95 LA95

36

Peak sound pressure level (L

63.5 dB

63.5 dB63.5 dB

63.5 dB

mode ke

y

The peak sound pressure level is peak sound pressure level of the sound wave before smoothed with the time weighting characteristics. L

is peak sound level for Z characteristics.

peak

＜＜＜＜ Parameter setting ＞＞＞＞

Measurement is mede according to the following procedure

① Frequency weighting key ：Z

② Display mode key ：Peak

③ Time weighting key ：F, S or Imp

④ Range key ：Select a range where the bar graph indicates

【Method of selecting [Range] key】

Press [Range] key, and choose by cursor keys▲▼, and press [Range] key again to register.

⑤ Measurement time key ：1s、3s、5s、10s，1m，5m，10m，15m、30m，1h、8h、24 h

⑥ and＊＊＊(input to the [Start/Stop] key)

＜＜＜＜ Display ＞＞＞＞

Measuring time

Rec:Blinks during recording Stp: Holding state

①Frequency weighting key (A･C, Z)

⑤Measuring time key

②Display

１０

１０ｍｍｍｍ０００

１０１０

40

130

4040

Stp

StpStp

０００ｈｈｈｈ００

００００００

Z

Z Fast Peak

Z Z

) measurment

peak

approximately 2/3 of the full scale.

００ｍｍｍｍ０５

０５ｓｓｓｓ

００００

０５０５

130

130 130

Fast Peak

Fast PeakFast Peak

Frequency weighting ：Ｚ

③Time weighting

key

(F:Fast, S:Slow,

Imp: I mpulse)

④[Range] key

Time weighting：Fast, Slow, Imp

Display mode Peak

37

C-weighted peak sound pressure level (L

63.5 dB

63.5 dB63.5 dB

63.5 dB

(do

esn't influence the measurement.

)

mode key

The peak sound level is peak sound pressure level before smoothed with the time weighting characteristics. Lcpeak is wavy peak level of C characteristic.

＜＜＜＜ Parameter setting ＞＞＞＞

【Method of selecting [Range] key】

Press [Range] key, and choose by cursor keys▲▼, and press [Range] key again to register.

Measuring time

Rec:Blinks during recording Stp: Holding state

① Frequency weighting

key (A･C, Z)

⑤Measuring time key

②Display

Measurement is mede according to the following procedure

① Frequency weighting key ：C

② Display mode key ：Fixed to Peak

③ Time weighting key ：Any of

(doesn't influence the measurement.)

④ Range key ：Select a range where the bar graph indicates

approximately 2/3 of the full scale.

⑤ Measurement time key ：1s、3s、5s、10s，1m，5m，10m，15m、30m，1h、8h、24ｈ

and＊＊＊(input to the [Start/Stop] key)

The measurement starts with [Start/Stop] key.

＜＜＜＜ Display ＞＞＞＞

１０

１０ｍｍｍｍ０００

１０１０

40

4040

Stp

StpStp

・ Measurement starts with [Start/Stop] key pushed, and ends up automatically at the

measurement time. Digital display indicates the halfway result at the current point of time.

( Display “ Rec “ blinks while the measurement.)

・By pushing [Start/Stop] key in course of the measurement, calculation is done using the data so far. ・When *** is selected, the final data is calculated and displayed only when [Start/Stop] is pushed or 199 hours have gone through.

０００ｈｈｈｈ００

００００００

130

C

００ｍｍｍｍ０５

０５ｓｓｓｓ

００００

０５０５

130

130 130

C Fas

Fast Peak

C C

t Peak

FasFas

t Peakt Peak

Frequency weighting ：C

Time weighting：Any of F, S or Imp

) measurement

Cpeak

F, S or Imp

Display mode Peak

③Time weighting key

(F:Fast, S:Slow,

Imp: I mpulse)

④[Range] key

38

C-weighted equivalent continuous sound pressure level (L

63.5 dB

Lceq is C-weighted equivalent continuous sound pressure level.

＜＜＜＜ Parameter setting ＞＞＞＞

【Method of selecting [Range] key】

Press [Range] key, and choose by cursor keys▲▼, and press [Range] key again to register.

＜＜＜＜ Display ＞＞＞＞

Measuring time

Rec:Blinks during recording Stp: Holding state

①Frequency weighting key (A･C, Z)

⑤Measuring time key

②Display mode key

Measurement is mede according to the following procedure

① Frequency weighting key ：C

② Display mode key ：Leq

③ Time weighting key ：F or S

④ Range key ：Select a range where the bar graph indicates

approximately 2/3 of the full scale.

⑤ Measurement time key ：1s、3s、5s、10s，1m，5m，10m，15m、30m，1h、8h、24ｈ

and＊＊＊(input to the [Start/Stop] key)

The measurement starts with [Start/Stop] key.

１０

１０ｍｍｍｍ０００

１０１０

40

4040

Stp

StpStp

０００ｈｈｈｈ００

００００００

130

C

００ｍｍｍｍ０５

０５ｓｓｓｓ

００００

０５０５

130

130 130

C Fast

Fast

C C

Fast Fast

Frequency weighting ：C

Leq

LeqLeq

Time weighting： F or S

Display mode Leq

③Time weighting key

(F:Fast, S:Slow,

Imp: I mpulse)

④[Range] key

) measurement

Ceq

39

Power average value of the maximum sound pressure level in a given

M

easurement time 10s (second)

display

６３

６３６３

６３

．．．．

５５５５

ｄＢ

ｄＢｄＢ

ｄＢ

interval (L

Power average value of the maximum sound pressure level in a given interval (L average of the maximum value of A-weighted sound pressure level in successive 5-sec intervals. It can be measured only when A characteristics is selected in the standard screen.

①Frequency Weighting

④Measurement

【Method of selecting[Range] key】 Press [Range] key, and choose by cursor keys▲▼, and press [Range]] key

again to register.

key

②Display

＜＜＜＜ Parameter setting ＞＞＞＞

＜＜＜＜ Display ＞＞＞＞

key

mode

Mode: Normal in < System>1/3 screen is changed to Mode:L

Menu screen. The screen for power average of the maximum value appears when the

Measurement is mede according to the following procedure

① Frequency weighting key ：A

② Display mode key ：LA or tm5

③ Time weighting key ：F or S

④ Range key ：Select a range where the bar graph indicates

⑤ Measurement time key ：1s, 3s, 5s, 10s, 1m, 5m, 10m, 15m, 30m, 1h, 8h, 24h

The measurement starts with [Start] key.

) measurement

Atm5

1) [Menu] key

③Time weighting key

(F:Fast,

S:Slow,

Imp: I mpulse)

④[Range] key

change is fixed and resisted with [Set] key.

approximately 2/3 of the full scale.

and＊＊＊(input to the [Start/Stop] key)

) is power

Atm5

＜＜＜＜Menu＞＞＞＞

<System><System> Mode

Mode ：：：：LAtm5

ModeMode Data delet

Data delet ：：：：off

Data deletData delet LCD cont

LCD cont ：＊＊＊

LCD contLCD cont Date

Date y/m/d

y/m/d ：：：：01/01/01

DateDate

y/m/d y/m/d

TTTTime h/m/s

ime h/m/s ：：：：00:00:00

ime h/m/sime h/m/s

Printer(pc)set

Printer(pc)set ：：：：9600

Printer(pc)set Printer(pc)set USB out

USB out ：：：：OFF

USB out USB out

with the ▲▼key in

Atm5

1/3

LAtm5

LAtm5LAtm5 off

offoff

：＊＊＊

：＊＊＊：＊＊＊

01/01/01

01/01/0101/01/01 00:00:00

00:00:0000:00:00

9600

96009600

OFF

OFFOFF

1/3

1/31/3

１１１１

１０

１０ｍｍｍｍ

０００

０００ｈｈｈｈ００

００ｍｍｍｍ００

１０１０

００００００

００００

００ｓｓｓｓ

００００

－－．－

Bar: Displays the current instantaneous level. LA or tm5 Press［［［［Start/Stop Set］］］］key

－－．－－－．－

40

4040

Stp

A

Stp Stp

１０

１０ｍｍｍｍ

０００

１０１０

０００ｈｈｈｈ００

００００００

40

4040

Rec

A

RecRec

↑

.

The Rec blinks with [Start/Stop] key input

ｄＢ

ｄＢｄＢ

130

A Fast

A A

130

130 130

Fast

FastFast

００ｍｍｍｍ００

００００

130

130 130

A Fast

Fast

A A

FastFast

L

LA

LL

００ｓｓｓｓ

００００

L

A

AA

LA

A

LL

AA

００ｈ００ｍ００ｓ００ｈ００ｍ０１ｓ００ｈ００ｍ０２ｓ・００ｈ００ｍ０９ｓ ← End in ten seconds ００ｈ００ｍ００ｓ ← The following measurement

＊When <Memory>2/3 screen Intr:Single is measured, it

becomes Repeat continuous work as the measurement time display.

← Count-up timer for the measurement ← Starts with display ――. ― when the measurement

mode is tm5 . Measurement value is displayed every five second.

← The bar displays the instantaneous level in every

0.1 second. ← L Current level is displayed with LA selected value.

and tm5 can be changed.

A

40

Impulse sound pressure level(LAI) measurement

63.5 d

63.5 d63.5 d

63.5 d

BBBB

Impulse sound pressure level (LAI) is A-weighted sound pressure level with time weighting characteristics, ‘Impulse’. It can be used only when A characteristics is selected in the default screen.

＜＜＜＜ Parameter setting ＞＞＞＞

【Method of selecting [Range] key】

Press [Range] key, and choose by cursor keys▲▼, and press [Range] key again to register.

＜＜＜＜ Display＞＞＞＞

Measuring time

① Frequency weighting

key (A･C, Z)

⑤Measuring time key

②Display mode key

Measurement is mede according to the following procedure

① Frequency weighting key ：A ② Display mode key ：L

③ Time weighting key ：Imp

④ Range key ：Select a range where the bar graph indicates

１０

Rec:Blinks during recording Stp: Holding state

１０ｍｍｍｍ０００

１０１０

40

4040

Stp

StpStp

０００ｈｈｈｈ００

００００００

130

A

A Imp L

A A

A

approximately 2/3 of the full scale.

００ｍｍｍｍ０５

０５ｓｓｓｓ

００００

130

130 130

Imp LA

Imp LImp L

Frequency weighting ：A

０５０５

A

AA

Time weighting： Imp

③Time weighting

key

(F:Fast, S:Slow,

Imp: I mpulse)

④[Range] key

Display mode LA

41

63.5 dB

Impulse equivalent continuous A-weighted sound pressure level (L

AIeq

)

measurement

Impulse equivalent continuous A-weighted sound pressure level (L continuous sound pressure level with time weighting characteristics, ‘Impulse’. It can be used only when A characteristics is selected in the default screen.

＜＜＜＜ Parameter setting ＞＞＞＞

【Method of selecting [Range] key】

Press [Range] key, and choose by cursor keys▲▼, and press [Range] key again to register.

＜＜＜＜ Display＞＞＞＞

Measuring time

Rec:Blinks during recording Stp: Holding state

① Frequency weighting

key (A･C, Z)

④Measuring time key

⑤Display mode key

Measurement is mede according to the following procedure

① Frequency weighting key ：A ② Display mode key ：Leq

③ Time weighting key ：Imp

④ Range key ：Select a range where the bar graph indicates

approximately 2/3 of the full scale.

１０

１０ｍｍｍｍ０００

１０１０

40

4040

Stp

StpStp

０００ｈｈｈｈ００

００００００

130

A

A Imp Leq

A A

００ｍｍｍｍ０５

０５ｓｓｓｓ

００００

130

130 130

Imp Leq

Imp LeqImp Leq

Frequency weighting ：A

０５０５

Display mode Leq

Time weighting： Imp

) is equivalent

AIeq

③Time weighting key

(F:Fast, S:Slow,

Imp: I mpulse)

④[Range] key

42

Record of memory

【【【【Nomal】】】】 mode

<Memory><Memory> Mode

Mode ：：：：Normal

ModeMode Interval

Interval ：：：：Single

IntervalInterval

Mode ：Normal ：Normal ：Normal measurement

● Interval ：Single ：Measuring interval setting

2/3

2/32/3

Normal

Normal Normal Single

SingleSingle

Memory function

Single ：The measurement starts with[Start/Stop] key and is terminated at Meas Time selected . Repeat ：The measurement starts with [Start/Stop] key and is repeated in every Meas Time selected until [Start/Stop] key is pressed.

43

【【【【Auto】】】】 mode

Fixed to Mease Time, when when RSR card is installed,

＜＜＜＜ Operation ＞＞＞＞

By changing Mode: Normal in < Memory>2/3 of [Menu] screen to Mode: Auto with the ▲▼key , and fixing it with [Set] key, the following screen appears:

Select to Mode：Auto

<Memory><Memory> Mode

Mode ：：：：Normal

ModeMode Interval

Interval ：：：：Single

IntervalInterval

2/3

Normal

Normal Normal Single

SingleSingle

2/3

2/32/3

Mode

Mode ：：：：Auto

ModeMode

Interval

Interval ：：：：Single

IntervalInterval

I/O

I/O ：：：：OFF

I/O I/O

Level

Level ：：：：65dB

Level Level

Samp Time

Samp Time ：Meas Time

Samp Time Samp Time

Sta : 08/10/10

Sta : 08/10/10 18:16:00

Sta : 08/10/10 Sta : 08/10/10

Stp : 08/10/12 20:16:00

Stp : 08/10/12 20:16:00Stp : 08/10/12 20:16:00

2/3

Auto

AutoAuto Single

SingleSingle

OFF

OFFOFF

65dB

65dB65dB

Meas Time

Meas TimeMeas Time

18:16:00

18:16:0018:16:00

2/3

2/32/3

Mode ：Auto ：Automatic measurement, where the following items are available. Interval ：Single ：Measuring interval setting

Single ：The measurement starts with [Start/Stop] key and is terminated at Meas Time selected . Repeat ：The measurement starts with [Start/Stop] key and is repeated in every Meas Time selected until [Start/Stop] key is pressed.

I/O ：OFF ：External output setting

OFF ：Default (Data output is disabled). ON ：Outputs data for one second when the data

mory mode is active. Level ：Threshold level is registered (when the levelexceeds it, recording starts) Samp Time ：Meas Time：Meas Time：sampled at interval equal to Meas time. 100ms ：sampled at interval 100ms (0.1s). 200ms ：sampled at interval 200ms (0.2s). 1s ：sampled at interval 1s ** Meas Time is time set with [Meas Time] key (1s～-･･･).

＊ Select 10s or more in L

measurement.

Atm5

Sta ： Registers the starting time for recording (YY/MM/DD HH/MM/SS)

(Year/Month/Date, date time/minute/second).

Stp ： Registers the stop time for recording (YY/MM/DD HH/MM/SS)

(Year/Month/Date, date time/minute/second)

＜The internal SRAM and Memory Card(SD Card) The contents of the record＞

Set value of

Samp Time

100ms 200ms

1s

Meas Time

Sound pressure level LA LC Lp

Equivalent continuous sound pressure level Sound exposure level Maximum sound pressure level Minimum sound pressure level

Percentile (5%) sound pressure level

Percentile sound

pressure level

（LAN）

Percentile (10%) sound pressure level Percentile (50%) sound pressure level Percentile (90%) sound pressure level Percentile (95%) sound pressure level

Peak sound pressure level

Style A C Z

L

LAE

L

Amax

L

Amin

L L L L L

―

Aeq

A05

A10

A50

A90

A95

L

Ceq

― ― ― ― ― ― ― ― ― ― ― ― ― ― ― ―

Cpeak

―

L

peak

44

≪≪≪≪Interval ：：：： Single At time of setting≫≫≫≫

Level

3

●Samp Time ： Meas.Time at time of setting If instantaneous value is beyond a set point, I record for once of “Meas.Time”.

instantaneous value

setting

Meas.Time

Sta

Record start

Record end

Stp

Time

Instantaneous value

setting

Meas.Time

Sta

Record start

Stop

Record end

Time

●Samp Time ：( 100ms / 200ms / 1s ) at time of setting If instantaneous value is beyond a setting level, record it during one second by setting time of

Samp Time ( 100ms / 200ms / 1s ).

When there is no memory card (SD card): 1S and the record are one data at the measurement

time for the sampling duration of the setting.

When there is a memory card (SD card): 1S and the record are the numbers at the

measurement

time for a set sampling duration of one second.

Instantaneous value

setting

1s

Sta

Record start

Samp Time

Record end

Stp

Time

≪≪≪≪Interval ：：：： Repeat At time of setting≫≫≫≫

Level of instantaneous value is less than a setting level or records it until record stop time.

Instantaneous value

setting

Meas.Time or Samp Time

Start

Record start

１

2

3

4

Stop

Record end

Instantaneous value

setting

Start

Meas.Time or Samp Time

Record start

１

2

4

Stop

Record end

45

６３

６３６３

６３

．．．．

５５５５

ｄＢ

ｄＢｄＢ

ｄＢ

６３

６３６３

６３

．．．．

５５５５

ｄＢ

ｄＢｄＢ

ｄＢ

＜ Standby screen ＞＜ During a measurement ＞

↑

１０

１０ｍｍｍｍ０００

１０１０

40

40 AUTO 130

4040

Stp

StpStp

The Stp blinks when [Start Stop] Key is pressed to confirm the stand-by state.

０００ｈｈｈｈ００

００００００

AUTO 130

AUTO 130 AUTO 130

AAAA Fast

００ｍｍｍｍ００００0000ｓｓｓｓ

００００

Fast Lp

Fast Fast

Default screen

Lp

LpLp

１０

１０ｍｍｍｍ０００

１０１０

40

4040

Rec

RecRec

０００ｈｈｈｈ００

００００００

AUTO

AAAA Fast

００ｍｍｍｍ００００0000ｓｓｓｓ

００００

AUTO 130

130

AUTOAUTO

130 130

Fast Lp

Fast Fast

Lp

LpLp

46

12:18:20

12:18:20 12:18:20

12:18:20

Data recall from the memory

Time constant

D

isplay blinks

＜＜＜＜Operation＞＞＞＞

Menu key

The Mode: Normal in <System>1/3 screen is changed to Mode: Mem call with ▲▼key, which then leads to the memory display screen by pressing [Set] key. .

【external Memory Card (SD card)】

【internal SRAM】

Memory number, Sampling time

001/014

001/014 10

001/014001/014 FAST

FAST

FASTFAST LLLLAeq

Aeq

AeqAeq

LAE

LAE ：：：：48.6

LAELAE

Lmin

Lmin ：：：：42.2

LminLmin Lmax

Lmax：：：：77.5

LmaxLmax

10ｍｍｍｍ 08/10/10

1010

＊＊＊＊11112:18:20

：

：45.3 LA05

45.3 LA05：：：：66.2

：：

45.3 LA0545.3 LA05

48.6

48.6 48.6

42.2 LA90

42.242.2

77.5 LA95

77.5 77.5

Memor

Memory Call Ex

y Call Ex

MemorMemor

y Call Ex y Call Ex

08/10/10

08/10/1008/10/10

2:18:20

2:18:202:18:20

66.2

66.266.2

LA10

LA10：：：：66.2

LA10LA10

LA50

LA50：：：：66.2

LA50LA50

LA90：：：：66.2

LA90 LA90

LA95：：：：66.2

LA95LA95

66.2

66.266.2

66.2

66.266.2

66.2

66.266.2

66.2

66.266.2

001/014

001/014 10

001/014001/014 FAST

FAST

FAST FAST LAeq

LAeq

LAeqLAeq LAE

LAE ：：：：48.6

LAELAE

Lmin

Lmin ：：：：42.2

LminLmin Lmax

Lmax：：：：77.5

LmaxLmax

10ｍｍｍｍ 08/10/10

1010

：

45.3

5.3 LA05

：：：444

5.3 5.3

48.6 LA10

48.6 48.6

42.2 LA90

42.2 42.2

77.5 LA95

77.5 77.5

Memory Call IN

Memory Call INMemory Call IN

08/10/10

08/10/1008/10/10

LA05：：：：66.2

LA05LA05 LA10：：：：66.2

LA10LA10

LA50

LA50：：：：66.2

LA50LA50

LA90：：：：66.2

LA90LA90

LA95：：：：66.2

LA95LA95

66.2

66.266.2

66.2

66.266.2

66.2

66.266.2

66.2

66.266.2

66.2

66.266.2

"*" is displayed in Repeat of the external Memory Card (SD Card)

The first data of Repeat data are displayed.

Each data is displayed with key at Repeat.

Select the data with ▲▼ key, accelerating by keeping on pushing the cursor

On pressing Card key in the state of Memory Call, it changes to Memory Call Ex and the data in the Card is displayed

Memory Call IN：Data stored in the internal SRAM.

Memory Call Ex：Date stored in the external Memory Card (SD Card)

[Start/Stop] key pressed starts data communication displayed data.

※※※※To return to the default screen, change Mode: Memory call in < System>1/3 screen to Mode :Normal with ▲▼ key.

Whenever measuring it, the measurement data preserved in an internal memory is overwrited.

<System><System> Mode

Mode ：：：：Mem call

ModeMode Data delet

Data delet ：：：：off

Data deletData delet LCD cont

LCD cont ：＊＊＊

LCD contLCD cont Date

Date y/m/d

y/m/d ：：：：01/01/01

DateDate

y/m/d y/m/d

Time

Time ：：：：00:00:00

TimeTime Printer(pc)set

Printer(pc)set ：：：：9600

Printer(pc)set Printer(pc)set USB out

USB out ：：：：OFF

USB out USB out

1/3

9600

96009600

1/3

1/31/3

Mem call

Mem callMem call off

offoff

：＊＊＊

：＊＊＊：＊＊＊

01/01/01

01/01/0101/01/01 00:00:00

00:00:0000:00:00

OFF

OFFOFF

Date/time of the Measurement

Symbol *** refers to the item

which is set OFF in Menu screen.

NOTE

47

How to use the Memory Card ( SD Card －－－－Standard－－－－ )

4400

1

3300

4400

1

3300

4400

STD

13

00

The measured data can be stored on the memory card (SD card) to be processed by personal computer. When the memory card (SD card) is inserted after the POWER of this equipment supply is turned on, display【STD】blinks. The memory card (SD card) is recognized automatically, blinks STD is a standby display on starting the measurement if the power switch is turned on with the memory card (SD card) inserted.

Card Installation

00003s

3s ０００

０００ｈｈｈｈ００

００００００

００ｍｍｍｍ００

００００

STD

STDSTD

Fast La

Fast LaFast La

3s3s

63.5 dB

63.5 dB63.5 dB

Stp

Stp A

A Fast La

StpStp

A A

００ｓｓｓｓ

００００

① Insert the a card.

Card

After 3s

②STD lighted.

00003s

3s ０００

０００ｈｈｈｈ００

3s 3s

63.5 dB

63.5 dB63.5 dB

Stp

Stp A

StpStp

００ｍｍｍｍ００

００００００

００００

E F

E FE F

A Fast L

Fast LA

A A

Fast LFast L

００ｓｓｓｓ

００００

A

AA

④The remaining card capacity displayed.

Measurement

③Press [Card] key.

00003s

3s ０００

０００ｈｈｈｈ００

００ｍｍｍｍ００

3s3s

００００００

63.5 dB

63.5 dB63.5 dB

Stp

Stp A

A Fast L

StpStp

A A

００ｓｓｓｓ

００００

Fast LA

Fast LFast L

A

AA

⑤Blinks STD is a standby display on starting the

measurement.

Ref.

Measurement

Procedure

Press

[Start/Stop] key

<E.g. Acquired

Single：

Measur day time weight Range Time set LAeq LAE Lmin

2009/04/13 18:17:10 F 80dB 000h00m03s 49.8 54.6 40 …

Repeat：

easur day time weight Range Time set LAeq LAE Lmin

2009/04/13 18:17:10 F 80dB 000h00m03s 49.8 54.6 40 …

2009/04/13 18:17:13 F 80dB 000h00m03s 56.6 61.3 47.4 …

2009/04/13 18:17:16 F 80dB 000h00m03s 66 70.7 51.9 … ・・・・・・・・

・・・・・・・・

data to be stored in CSV format.>

48

Eject the card

C

ard

4400

1

3300

4400

1

3300

Delete the card data

①Press Card key.

After "STD" lighting, please take out a card in a few minutes. There is the case that "Card ERR" is displayed. In the case, the file might be damaged.

00003s

3s ０００

０００ｈｈｈｈ００

００ｍｍｍｍ００

3s3s

００００００

63.5 dB

63.5 dB63.5 dB

STD

STDSTD

Stp

Stp A

A Fast L

StpStp

A A

００ｓｓｓｓ

００００

Fast LA

Fast LFast L

A

AA

① Confirm STD blinking.

Data all Clear

Data all ClearData all Clear

Yes

Yes＝＝＝＝Start

Start

YesYes

StartStart

No

No＝＝＝＝ Set

NoNo

Set

SetSet

③Delete all the data along the displayed flow of operation, then to return to the former

window.

00003s

3s ０００

3s3s

63.5 dB

63.5 dB63.5 dB

Stp

Stp A

A Fast L

StpStp

A A

②STD lighted.

ＳＳＳＳure

ure？？？？

ureure

Yes

Yes＝＝＝＝Start

Start

YesYes

StartStart

No

No＝＝＝＝ Set

NoNo

Set

SetSet

０００ｈｈｈｈ００

００ｍｍｍｍ００

００００００

STD

STDSTD

００ｓｓｓｓ

００００

Fast LA

Fast LFast L

A

AA

④Eject the Card.

CAUTION

②Keep [Set] key pushed for a few seconds in the

situation with the card installed.

49

Example of file creation

The file is created as follows. :

When A characteristics (Time constant F and S) is selected:

・Single

001.csv ← ：Whenever [Start/Stop] key is pushed, this single data line is made. (a single

data since the mode is Single. )

002.csv ↓ ・

・

・Repeat

001.csv ← ：Whenever [Start/Stop] key is pushed, this data line is made. (two or more

002.csv ↓ ・・

Eventually, in the card, Single and Repeat data files are created at random.

＜Example＞

001.csv ←：File made in single mode (1 data/ 1file)

002.csv ←：File made in single mode (1 data/ 1file)

003.csv ←：File made in repeat mode (two or more data/file)

004.csv ←：File made in single mode (1 data/ 1file)

005.csv ←：File made in repeat mode (two or more data/file) ・・ ↑ At most 999 CSV files can be made, where [Start/Stop] key is pressed 999 times..

Only LAIeq is made.

Meas…day/Meas…time/Time weight/Level Range/Time sett/LAeq/Lmin……./LA95

2009/03/2 9:54:52 F 80dB 000h…10s 48.9 42.3 43.9

data/file)

Meas…day /Meas…time/Time weight/Level Range/Time sett/LAeq/Lmin……./LA95 2009/03/2 9:54:52 F 80dB 000h…10s 48.9 42.3 43.9

2009/03/2 9:54:52 F 80dB 000h…10s 48.9 42.3 43.9 2009/03/2 9:54:52 F 80dB 000h…10s 48.9 42.3 43.9

・

・＜as many data lines as indicated by Repaet＞

2009/03/2 9:54:52 F 80dB 000h…10s 48.9 42.3 43.9

Meas…day /Meas…time/Time weight/Level Range/Time sett/LAIeq 2009/03/2 9:54:52 Ｉ 80dB 000h…10s 52.3

2009/03/2 9:54:52 Ｉ 80dB 000h…10s 52.3 2009/03/2 9:54:52 Ｉ 80dB 000h…10s 52.3

・. ＜as many data lines as indicated by Repaet＞ 2009/03/2 9:54:52 Ｉ 80dB 000h…10s 52.3

50

Print/Data management

Print

This equipment is provided with a function of printing the measured data with a specified serial printer.

← Set to Mode: Print

＜Parameter setting＞

1) Turn off POWER switch and connect the printer before turning on POWER switch

2) Select Print in [Menu] key, < System > 1/3 screen and press [Set] key.

3) Then, the following screen appears.

＜Display＞

A-weighting C-weighting Z-weighting

001/014

001/014 10

001/014001/014 FAST

FAST

FAST FAST LAeq

LAeq：：：： 45.3 LA05

LAeqLAeq LAE

LAE ：：：： 48.6 LA10

LAE LAE LA50 Lmin

Lmin：：：： 42.2 LA90

LminLmin Lmax

Lmax：：：： 70.5

LmaxLmax

45.3 LA05 ：：：：***.*

45.3 LA05 45.3 LA05

48.6 LA10 ：：：： 66.2

48.6 LA10 48.6 LA10

42.2 LA90 ：：：：***.*

42.2 LA90 42.2 LA90

70.5 LA95

70.5 70.5

＜Manner of operation of data＞ elect the data with ▲▼key, accelerating by keeping on pushing the cursor.

On pressing [Card] key in the state of Print, it changes to Print Ex and the data in the Card is displayed

Memory Call IN：Data stored in the internal SRAM.

Print (date communication) starts with the top of the data by pushing the [Start/Stop] key. Printing can be paused with [Pause] key and restarted by pressing it again from the current data line. .

The printing is canceled by pressing [Start/Stop] key and stands by at the top data display

screen.

<System><System> Mode

Mode ：：：：Print

ModeMode DDDData delet

ata delet ：：：：off

ata deletata delet

LCD cont

LCD cont ：＊＊＊

LCD contLCD cont Date

Date y/m/d

y/m/d ：：：：01/01/01

DateDate

y/m/d y/m/d

Time h/m/s

Time h/m/s ：：：：00:00:00

Time h/m/sTime h/m/s Printer(pc)set

Printer(pc)set ：：：：9600

Printer(pc)set Printer(pc)set USB out

USB out ：：：：OFF

USB out USB out

1/3

Print

PrintPrint off

offoff

：＊＊＊

：＊＊＊：＊＊＊

01/01/01

01/01/0101/01/01 00:00:00

00:00:0000:00:00

9600

96009600

OFF

OFFOFF

1/3

1/31/3

again.

Number of data of memory numbers

10ｍｍｍｍ

1010

Print

Print IN

PrintPrint

08/10/10

08/10/1008/10/10

12:18:20

LA50 ：：：：***.*

LA50LA50

LA95 ：：：：***.*

LA95 LA95

IN

IN IN

12:18:20

12:18:2012:18:20

***.*

***.****.*

66.2

66.2 66.2

***.*

***.****.*

***.*

***.****.*

***.*

***.****.*

001/014

001/014 10

001/014001/014

FAST

FAST FAST

LLLLcccceq

eq

eqeq

LLLLcpeak

cpeak：：：：71.3

cpeakcpeak

10ｍｍｍｍ

1010

：：：：63.3

63.3

63.363.3

71.3

71.371.3

Print

Print IN

PrintPrint

08/10/10

12:18:20

IN

IN IN

08/10/10

08/10/1008/10/10

12:18:20

12:18:2012:18:20

001/014

001/014 10

001/014001/014 FAST

FAST

FAST FAST LLLLpeak

peak：：：：77772.9

peakpeak

10ｍｍｍｍ

1010

2.9

2.92.9

Print

Print IN

PrintPrint

Display blinks

Memory Call Ex：Date stored in the external Memory card (SD Card)

08/10/10

08/10/1008/10/10

12:18:20

12:18:2012:18:20

IN

IN IN

51

Saving Data to PC

This equipment is provided with data saving function using the specified data management software.

Data management with USB port

← ← Set Mode to PC out display

＜Operation＞

＜Display＞

A-weighting C-weighting Z-weighting

001/014

001/014 10

001/014001/014 FAST

FAST

FAST FAST LAeq

LAeq：：：： 45.3 LA05

LAeqLAeq LAE

LAE ：：：： 48.6 LA10

LAE LAE LA50 Lmin

Lmin：：：： 42.2 LA90

LminLmin Lmax

Lmax：：：： 70.5 LA95

LmaxLmax

45.3 LA05 ：：：：***

45.3 LA05 45.3 LA05

48.6 LA10 ：：：： 66.2

48.6 LA10 48.6 LA10

42.2 LA90 ：：：：***.*

42.2 LA90 42.2 LA90

70.5 LA95 ：：：：***.*

70.5 LA95 70.5 LA95

＜Manner of operation of data＞ Select the data with ▲▼key, accelerating by keeping on pushing the cursor

On pressing [Card] key in the state of Print, it changes to Print Ex and the data in the Card is displayed

Memory Call IN：Data stored in the internal SRAM.

Date communication starts with the top of the data by pushing [Start/Stop] key. Printing can be paused with [Pause] key and restarted by pressing it again from the current data line. .

The printing is canceled by pressing [Start/Stop] key and stands by at the top data display

screen.

<System><System> Mode

Mode ：：：：PC out

ModeMode Data delet

Data delet ：：：：off

Data deletData delet LCD cont

LCD cont ：＊＊＊

LCD contLCD cont Date

Date y/m/d

y/m/d ：：：：01/01/01

DateDate

y/m/d y/m/d

Time

Time h/m/s

h/m/s ：：：：00:00:00

TimeTime

h/m/s h/m/s

Printer(pc)set

Printer(pc)set：：：：9600

Printer(pc)setPrinter(pc)set USB out

USB out ：：：：OFF

USB out USB out

1/3

PC out

PC outPC out off

offoff

：＊＊＊

：＊＊＊：＊＊＊

01/01/01

01/01/0101/01/01 00:00:00

00:00:0000:00:00

9600

96009600

OFF

OFFOFF

1/3

1/31/3

Select PC out in [Menu] key, < System > 1/3 screen and press [Set] key.

Number of data of memory numbers

10ｍｍｍｍ

1010

Print

Print IN

PrintPrint

08/10/10

08/10/1008/10/10

12:18:20

LA50 ：：：：***.*

LA50 LA50

IN

IN IN

12:18:20

12:18:2012:18:20

***.*

******

66.2

66.2 66.2

***.*

***.****.*

***.*

***.****.*

***.*

***.****.*

.*

.*.*

001/014

001/014 10

001/014001/014

FAST

FAST FAST

LLLLcccceq

eq

eqeq

LLLLcpeak

cpeak：：：：71.3

cpeakcpeak

10ｍｍｍｍ

1010

：：：：63.3

63.3

63.363.3

71.3

71.371.3

Print

Print IN

PrintPrint

08/10/10

12:18:20

IN

IN IN

08/10/10

08/10/1008/10/10

12:18:20

12:18:2012:18:20

001/014

001/014 10

001/014001/014 FAST

FAST

FAST FAST LLLLpeak

peak：：：：72.9

peakpeak

10ｍｍｍｍ

1010

12:18:20

72.9

72.972.9

Print

Print IN

PrintPrint

Display blinks

Memory Call Ex：Date stored in the external Memory Card (SD_Card)

08/10/10

08/10/1008/10/10

12:18:20

12:18:2012:18:20

IN

IN IN

52

Output terminal

AC、、、、DC Output

AC Output

The AC Output is the frequency-weighted signal. Output: 1Vrms (FS), Output impedance: 600Ω, Load impedance > 10kΩ

DC Output

The DC Output is the frequency-weighted, root-mean-square-detected, and then logarithmic converted signal. Output: 2.5V (FS), 0.25V/10dB, Output impedance: 50Ω, Load impedance > 10kΩ

Relation between the display value of each range, and output voltage

DISPLAY VALUE（dB） OUTPUT VOLTAGE（V）

RANGE

40～130 30～120 20～110 20～100 20～90 20～80

130 120 110 100 90 80 1.00000 2.50000 120 110 100 90 80 70 0.31623 2.25000 110 100 90 80 70 60 0.10000 2.00000 100 90 80 70 60 50 0.03162 1.75000

90 80 70 60 50 40 0.01000 1.50000 80 70 60 50 40 30 0.00316 1.25000 70 60 50 40 30 20 0.00100 1.00000 60 50 40 30 20

50 40 30 20 40 30 20

－－－

－－

－

AC OUT

0.00032 0.75000

0.00010 0.50000

0.00003 0.25000

DC OUT

53

Specification

1) Type ：MODEL 4431

2) Description ：Sound Level Meter

3) Applicable Standards ：JIS C1509-1：2005 ClassⅡ, IEC 61672-1：2002 Class Ⅱ

4) Frequency Range ：20Hz～20kHz（Conforms with measurement law 20Hz～8kHz）

5) Microphone(Sensitivity）：TYPE 7052NR(-33dB, Stand-alone-31dB)

6) Level Range Control ：10dB 6step

20～80dB, 20～90dB, 20～100dB, 20～110dB, 30～120dB

40～130dB

7) Measurement Level A ：28～130dB （0～80dB／0-dB measurement function in ON）

C ：36～130dB Z(FLAT) ：38～130dB C peak ：55～141dB

Z（FLAT）peak：60～141dB

8) Self-noise level ：The lower limit of the measurement range in dB lies 6dB

higher than self-noise level.

9) Linearity Range ：100dB

10) Time weighting ：Fast、Slow、Impulse

11) Frequency weighting ：A, C, Z（FLAT）

12) Measurement items ：Sound pressure level(Lp), A-weighted sound pressure level, C-weighted sound pressure level(LA, LC),Equivalent continuous A-weighted sound pressure level(L exposure level(LAE), Maximum sound pressure level(L Minimum sound pressure level(L

), Percentile sound

Amin

pressure level(5 freely selectable values, LAN), Peak sound pressure level(L (L level(L

), C-weighted equivalent continuous sound pressure

Cpeak

)

Ceq

), C-weighted peak sound pressure level

peak

Power average of maximum sound pressure level in a given interval(L

), Impulse sound pressure level(LAI),

Atm5

Impulse equivalent continuous sound pressure level(L

13)Measurement time ：1s, 3s, 5s, 10s, 1mim, 5mim, 10mim, 15mim, 30mim,

1h, 8h, 12h, 24h, Manual(Max. 199h59m59s)

14) Sampling Time ：20.8μS（Leq、L

max、Lmin

), 100ms(LN )

15) Data clear function ：Pause, and a function that deletes preceding 3 or 5 sec. data.

Memory start ；Selectable Auto or Manual

16) Timer function ：A marker can be set to start and stop the measurement at any specified moments.

17) Display ：Liquid crystal and Backlight(128×64 points)

Display range ：4digits display Display cycle ：display Period: 1s Bar display ：display Period: 0.1s

Warning ：Over ；＋3dB from upper limited scale

Under；－0.6dB from lower limited scale Battery display ：5 steps display Date ：year/month/day/ hour：minute：second

), Sound

Aeq

Amax

AIeq

),

)

54

18) Calibration signal ：Electric calibration with internal oscillator (1kHz sine wave)

19) Outputs AC output ：φ2.5 Jack

Output ：1Vrms (FS) Output impedance：600Ω

Load impedance ：more than 10kΩ

DC output ：φ2.5 Jack

Output ：2.5V (FS), 0.25V/10dB, Output impedance ：50Ω

Load impedance ：more than 10kΩ

20) RMS detection circuit ：True RMS detection circuit (computing type)

21) Processing ：Digital

22) Pause ：Normal pause function, as well as the function of

canceling the data before pausing the measurement, are available.

23) Data Storage Functions ：Sound pressure level or Processed values stored in built-in Memory or Memory card

Manual Storage ：Sound level, Calculation value, Memory time,

Store the Sampling Time to Built-in memory or

on Memory card Auto Storage ：Sampling interval 100ms, 200ms, sound level , Leq etc. Processing Card ：Storage of calculation results

24) I／O ：Direct output to printer, control and output data to computer Digital output of real-time noise waveform with USB interface

25) Comparator Output ：Comparator Function with threshold level

26) Battery Type ：Four 1.5V Alkaline cells IEC type LR6,

Optional AC adapter Battery life ：Alkaline dry cell ; Approx.9 hours when Switch on a back light ;

Approx.1/3 Consumption current ：Approx.150mA (When input 6V) at Calcutation OFF. When AC adaptor is used ；Approx.2.6VA

27) Operating temperature ：-10～50℃ 30％～90％RH（no condensation）

28) Size ：86（W）×285（H）×46（D）

29) Weight ：Less than Approx.450g (Including batteries）

30) Option ・1/1 and 1/3-octave Real-time Analysis Card

Applicable standards ：JIS C 1514（IEC61260）：Class1

Measurement mode ：Sound pressure level (Lp), Equivalent continuous

Sound pressure level (Leq), Sound exposure level(LE),

Maximum sound pressure level (Lmax) (One of the measurement modes selected as above is displayed.)

55

Frequency analysis band ：1/1- octave filter；16Hz, 31.5 Hz, 63 Hz, 125 Hz, 250 Hz, 500Hz, 1kHz, 2kHz,4kHz, 8kHz, AP

1/3- octave filter；12.5Hz, 16Hz, 20 Hz,25 Hz,31.5Hz,40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz, 315Hz, 400Hz, 500Hz, 630Hz, 800Hz, 1kHz, 1.25kHz, 1.6kHz,

2kHz, 2.5kHz, 3.15kHz, 4kHz, 5kHz,

6.3kHz,8kHz,10kHz ,12.5kHz, 16kHz, AP

・FFT Analysis Card Frequency span ：2kHz、5kHz、10kHz、20kHz Time window ：Rectangular、Hanning Analysis line ：400 Zoom ：×1, ×2, ×4 Processing ：Sound pressure level, Linear average value, Max,

・RSR card (Real sound recording card)

This card enables automatic recording with specified level and time, namely adding

the function of recording real wave data. The data is recorded in WAVE file format (48kHz 16bit Mono), easily corresponding to most common application software of acoustic analysis, as well as displaying its greatest force in all kinds of acoustic analysis.

Time for continuous record：Approx.6 hours

56

Appearance diagram of Sound Level Meter MODEL 4431

57

Pin Connections and How to Connect the Extension cable

1) Detach microphone from the body of the meter.

Microphone

① Turn the threaded reraining ring a little to the left. ② Pull out microphone as shown. ③ Repeat ① turn a left and ② pull out a little 5-8 times and you can separate.

2) Then plug the male connector of extension cable into the connector of the body.

④Mach key groove of body’s connector with the connector of extension cable and insert.

⑤Push the connector of extension cable. ⑥Turn the threaded reraining ring a little as shown repeat ⑤ and ⑥ 5-8 times

and you can connect.

The threaded reraining ring

Mach key

58

3) Attach microphone to the female connector of extension cable.

Mach key

⑦Mach key groove of body’s connector with the connector of extension cable and insert.

⑧Push the connector of extension cable. ⑨Turn the threaded reraining ring a little as shown repeat ⑧ and ⑨ 5-8 times

and you can connect.

※ Note; Do not turn only the threaded reraining ring connecting.

It causes damage to the connector.

【Wiring diagram of Main body side connector】

Connector (Soket;Type R03-R6F)

【Wiring diagram of Extension cable】

A；＋6.5V E；NC B；NC F；SIG C；－6.5V D；GND

Connector (Pin;R03-JB6F)

A；＋V D；COM B；NC E；NC C；－V F；SIG

Extension cable(2m～30m)

Connector (Soket;R03-PB6M)

A；＋V E；NC B；NC F；SIG C；－V D；COM, Shield

59

Communication Command

CMD

DAT

CR LF

Data

Variable size

ASCII

Command

1byte

ASCII

Interface

USB： LSI FT245 Transfer Speed ：9600～921600bps Data size ：8bit Stop bit ：1bit Parity check ：non

RS-232C： Transfer Speed ：9600,19200,38400bps Data size ：8bit Stop bit ：1bit Parity check ：non

Format

：

（

）

60

Command table（（（（CMD））））

Capital letters pertain to PC command Small letters paertain to 4431 command

Normal Command：：：：Nomal Sound Level Meter MODE

4431

№

Function Item

↑

PC

Time and date setting request

1

Time and date setting completed

Configuration file transfer

2

Configuration file completed

Set confirmation

3

Set forwarding

Start measurement

4

Start measurement

Stop measurement

5

Stop measurement

Data acquisition compreted

6

Data request

7

Data transfer

Calibration

8

Back light

9

Independent range setting

10

Filter setting

11

Lp-value acquisition

12

Latm5 Start command

13

LAleq Start command

14

Wave data exhaust command

15

Version acquisition

16

T

t

F

f

I

DATA

S

s

E

e r

D

DATA

C

c

L

l

R

r

A

a

P

M

m

Q

q

W

DATA

V

DATA

【【【【Option】】】】 Filter command：：：：When Filter card is installed, An additional receipt is done by a usual sound level meter command.

4431

№

Function Item

↑

PC

1 Filter mode O Filter mode setting

o

LB Exhausting special

2

command

B

LB exhaust DATA

PC

↑

4431

PC

↑

4431

Function Outline

Calendar registration

Measurement condition setting

Set reading

Set content collection

Measurement beginning command

Measurement stop command

Data has been secured

Data request command

Acquisition data collection

Calibration mode command

Only the display

LED lighting command

The return is not only in specification.

Data transfer

Beginning of power value at the maximum noise level in section

Beginning of impulse equivalent noise level

Wave data exhaust beginning（USB Only）

Function Outline

Filter ber data exhaust beginning

（USB Only）

61

【【【【Option】】】】 FFT Command：：：：When FFT card is installed、、、、An additional receipt is done by a usual sound level meter command.

№

Function Item

4431

↑

PC

↑

4431

Function Outline

1 Frequency span G Frequency span setting

g

2 Maes Time H Measurement time

h

3 Window function J Window function setting

j

4 Mode K Addition average or MAX

k

5 Filter Lp-value acquisition N

（USB Only）

DATA

62

Detail of Command

and data

Normal Command：：：：Nomal Sound Level Meter MODE

CMD

T

t

F Transfer

f

I

Set forwarding S Start measurement s Start measurement

E Stop measurement

e r Data acquisition

D

C CAL

Operation

L

Operation

R

Opration

A Filter specification

P

M Latm5 start Data division note m Data acquisition after “r” command is received

Q LAleq start Data division note

q Measurement start Data acquisition after “r” command is received

Function Item Data Item Function Outline Time setting request Time and data setting completed

configuration file

Set confirmation command

Data request Data transfer

Data request

Range single specification

Lp-value acquisition Data transfer ASCII(5)

ASCII(13)

ASCII(5) A B C D E

ASCII(5) Conforming of configuration file

ASCII(＊)

ASCII(1)

YYMMDDHHMMSS

Data division note

A ：Meas Time select（1）

0 ；＊＊＊ 1 ；1s 2 ；3s 3 ；5s 4 ；10s 5 ；1m

6 ；5m 7 ；10m 8 ；15m 9 ；30m A ；1h B ；8h C ；12h D ；24h B ：Range setting（1） 0 ；130dB 1 ；120dB 2 ；110dB 3 ；100dB 4 ； 90dB 5 ；80dB C ：Filter setting（1）

0 ；A 1 ；C 2 ；F D ：Time constant（1） 0 ；FAST 1 ；Slow 2 ；Imp E ：Interval（1） 0 ；single 1 ；repeat

Data division note Data division note

Data division note

Data division note Data division note

Data division note CAL （ It stop again by C or E ） Data division note It turns it off by E 0：130 1：120・・・・・5：80

Data division note 0：A 1：C 2：F Data division note Data division note

63

V Version request Data division note

Data transfer

W Wave out request Data division note

Data transfer

【【【【Option】】】】 Filter command：：：：At Filter Card setting, it is usually added to a Sound level meter command

CMD

O Filter setting ASCII(1)

o Data division note

B LB exhaust command

Data transfer

【【【【Option】】】】 FFT command：：：：At Filter Card setting, it is usually added to a Sound level meter command

CMD

G Frequency span ASCII(1)

g Data division note

H Mease Time

h Data division note J Window function

j Data division note

K FFT Mode

k Data division note

N FFT Lp-value Data division note

n

Function Item Data Item Function Lutline

0：1/1 1：1/3

Data division note It stops again by E

ASCII(＊)

Function Item Data Item Function Lutline

ASCII(3)

ASCII(1)

ASCII(＊)

0：20kHz 1：10kHz 2：5kHz 3：2kHz

001～999

0：Mann 1：Rect

0：LIN 1：MAX

64

4431

PC

Various Command

Data and Answer

Waitin Command

Preparation（（（（To Remote Mode））））

1. Main body side setting and screen

Select Renote Mode manually.

＜USB Communicate＞＜RS-232C Communicate＞

<System><System> Mode

Mode ：：：：Remote

ModeMode Data delet

Data delet ：：：：off

Data deletData delet LCD cont

LCD cont ：＊＊＊

LCD contLCD cont Date

Date y/m/d

y/m/d ：：：：01/01/01

DateDate

Nest time you power on, it stars with [Remote]. To cancel it, select [Menu] in Menu.

2. Communication timing

y/m/d y/m/d

Time

Time h/m/s

h/m/s ：：：：00:00:00

TimeTime

h/m/s h/m/s

Printer(

Printer(PC

Printer(Printer( USB out

USB out ：：：：OFF

USB out USB out

PC)set

)set ：：：：9600

PCPC

)set )set

1/3

Remote U

RemoteRemote off

offoff

：＊＊＊

：＊＊＊：＊＊＊

01/01/01

01/01/0101/01/01 00:00:00

00:00:0000:00:00

9600

96009600

OFF

OFFOFF

【Normal Screen】

１０

１０ｍｍｍｍ０００

１０１０

63.5 dB

Stp

StpStp

1/3

1/31/3

U

U U

０００ｈｈｈｈ００

００００００

63.5 dB

63.5 dB63.5 dB

Remote

60

6060

After Power ON

RemoteRemote

130

Z

Z Fast

Z Z

００ｍｍｍｍ０５

０５ｓｓｓｓ

００００

０５０５

130

130 130

Fast Lp

Fast Fast

Lp

Lp Lp

<System><System> Mode

Mode ：：：：Remote

ModeMode Data delet

Data delet ：：：：off

Data deletData delet LCD cont

LCD cont ：＊＊＊

LCD contLCD cont Date

Date y/m/d

y/m/d ：：：：01/01/01

DateDate

y/m/d y/m/d

Time

Time h/m/s

h/m/s ：：：：00:00:00

TimeTime

h/m/s h/m/s

Remote

Remote((((PC

RemoteRemote USB out

USB out ：：：：OFF

USB out USB out

PC)set

)set ：：：：9600

PCPC

)set )set

※Display changes int [Remote] Inhibiting any other key access than Memu.

1/3

Remote R

RemoteRemote off

offoff

：＊＊＊

：＊＊＊：＊＊＊

01/01/01

01/01/0101/01/01 00:00:00

00:00:0000:00:00

9600

96009600

OFF

OFFOFF

1/3

1/31/3

R

R R