VOLTCRAFT SL-300 Manuel utilisateur

SOUND LEVEL

METER

INSTRUCTION MANUAL

REC

FAST

A/C

1. SAFETY INFORMATION

Read the following safety information carefully

before attempting to operate or service the meter.

Use the meter only as specified in this manual

zEnvironment conditions

 Altitude lower than 2000 meters

 Relatively humidity ≤90RH

 Operation Ambient 0 ~ 40

zMaintenance & Clearing

 Repair or servicing not covered in this

manual should be performed by qualified

personnel.

 Periodically wipe the case with a dry

cloth. Do not use solvents or eradicator on

this instrument.

zSafety symbols

Comply with EMC

2. FUNCTIONS DESCRIPTION

This Sound Level Meter is designed for

noise project; quality control; illness prevention and

cure and all kinds of environmental sounds

measurement. It is applied to the sounds

measurement at factory; school; office; traffic

access and household, etc.

zThis unit confirms to the IEC61672-1

CLASS2 for Sound Level Meters.

zMAX & MIN measurements

zOver range display

zUnder range display

zA & C Weighting

zFAST & SLOW response

zAnalog AC/DC outputs for connection to

frequency analyzer or X-Y shaft recorder

3. SPECIFICATION

Standard applied: IEC61672 -1 CLASS2

Accuracy: +1.4dB

Frequency range: 31.5HZ ~ 8KHZ

Dynamic range: 50dB

Level ranges: LO30dB~80dB

Med50dB~100dB

Hi80dB~130dB

Auto30dB~130dB

Frequency weighting: A/C

Time weighting: FAST ( 125ms ), SLOW (

1s )

Microphone: 1/2 inch electret condenser

microphone

Display: 4 digits LCD display with a

resolution of 0.1dB

Display Update: 2 times/sec.

MAX hold: Hold the Maximum reading

MIN hold: Hold the Minimum reading

HOLD: Hold the readings

Alarm function: “OVER”is when input is

more than upper limit of range.

“UNDER”is when input is less than upper limit

of range.

Analog output : AC/DC outputs from

earphone outlet

AC=1Vrms DC=10mV/dB

Data output : USB data traffic

Auto power off : Meter automatically shuts

down after approx. 15 minutes of inactivity.

Power supply : One 9V battery, 006P or

NEDA1604 or IEC 6F22.

Power life : About 50hours

Operation temperature and humidity:

0~40,10RH~90RH

Storage temperature and temperature:

-10~+6010RH~75RH

Dimension : 278 (L) x 76 (W) x 50(H) mm

Weight : 350g

Accessories : Instruction manual, battery,

screwdriver, 3.5mm earphone plug,

windscreen, software, USB cable, tripod and

DC 9V power supply.

4. NAME AND FUNCTIONS

REC

FAST

A/C

DC 9V

OUTPUT

CAL

 Windscreen

 LCD

SYMBOL FUNCTION

LCD 4 digits

MAX Maximum hold

MIN Minimum hold

OVER over range

UNDER under range

FAST Fast response

SLOW Slow response

dBA A-Weighting(responseto human

sense)

dBC C-Weighting(response to

machine monitor)

88—180 Range indicate

REC Recording data into computer

AUTO Auto level range selection

FULL Memory full

HOLD Data hold function

AutopoweroffPress the”SETUP“

button to disable power off

Low battery indicate

REC button

3.0 DATALOGGER function

Press “REC” button after it power on, the display

will show “REC” to start Data Recordingpress the

button again to delet the record (Note: In order to

avoid data error, please don’t power it off under

REC condition, when the REC function is deleted

then it can power off).

3.1 Adjusting DATALOGGER response

Press the button continuously before power it

onthen press it will be displayed as

following

Press‘LEVEL’button to adjust memory timepress

‘HOLD’ button to hold the setup

3.2 Data zero function

Press the button continuously before power it

onloosen the

button when the display showing‘CLR’ after the

meter

power onwhich indicates that the data in

DATALOGGER has been deleted.

SETUP button

40The time chip adjustment

Press‘SETUP’button and then power it

onwhen‘TIME’symbol displays then

loosen‘SETUP’the meter will be under time

adjustment modeat the time the display will

show the date as following

Press the‘SETUP’button second time, the display

showing

The display showing “minute” adjustment mode,

press ‘LEVEL’ to

make the adjustmentpress ‘HOLD’to keep the

setup

Press the‘SETUP’button third time, the display

showing

The display showing “hour” adjustment mode,

press ‘LEVEL’ to

make the adjustmentpress‘HOLD’to keep the

setup

Press the‘SETUP’button fourth time, the display

showing

The display showing “date” adjustment mode, press

‘LEVEL’ to make the adjustmentpress‘HOLD’to

keep the setup

Press the‘SETUP’button fifth time, the display

showing

The display showing “month” adjustment mode,

press ‘LEVEL’ to

make the adjustmentpress ‘HOLD’ to keep the

setup

Press the‘SETUP’button sixth time, the display

showing

The display showing “year” adjustment mode,

press ‘LEVEL’ to

make the adjustmentpress ‘HOLD’to keep the

setup

Press the‘SETUP’button seventh and eighth time,

the display showing separately as following

The display showing default range, which can’t be

adjusted.

Press the‘SETUP’button ninth time, the display

showing

The display showing initialization of the time

chiptime and date have returned to factory setup.

When the battery is exhausted or replaced, if the

time can’t be adjusted then please initialize the time

chip first.

41USB communications

settingturn on the meter, connect the meter

with the computer correctly, choose the software

COM3COM4then press ‘SETUP’‘ ’

disappears from the display to indicate and disable

auto power off, that the USB data is transmitting.

 FAST/SLOW button:

time weighting selection

FASTFast sampling measurement, 1 time per

125mS.

SLOWSlow sampling measurement, 1 time per

second.

MAX/MIN button: Maximum and Minimum

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