SEFRAM 9836 Bedienungsanleitung

SEFRAM 9836

Digital Sound Level

Meter with Data Logger

32, rue Edouard Martel

BP55

F42009 –Saint Étienne Cedex 2

E-mail: [email protected]r

Instruction Manual

Tel : 04 77 59 01 01

Fax : 04 77 57 23 23

Web : www.sefram.fr

Digital Sound Level Meter with Data Logger

CONTENTS

Title Page

1. SAFETY INFORMATION………..………..………………..1

2. GENERAL DESCRIPTION ……………………..……...….1

3. FEATURE ………………………………………………......1

4. SPECIFICATIONS ..…………………..…………………....2

5. NAME AND FUNCTIONS ..………….……………............3

Display screen……………………………………………….4

6. DATA LOGGER & INTERVAL SETUP……………….…..7

6.1 Turn On or Off Recording Function..…...………….....7

6.2 Clearing Stored Data …………………….…………….8

7. SETTING THE DATE AND TIME………………………… 9

8. CALIBRATION PROCEDURES….………………………10

9. MEASUREMENT PREPARATION………….………......10

10. OPERATING PRECAUTIONS………………………….11

11. MEASUREMENT………….……………………………..11

12. SETUP SE-324………………………………..…...........12

Digital Sound Level Meter with Data Logger

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; otherwise, the protection

provided by the meter may be impaired.

Environment conditions

Altitude up to 2000 meters

Relatively humidity 90% max.

Operation Ambient 0 ~ 40C

Maintenance & Clearing

Repairs or servicing not covered in this manual should only be performed by

qualified personnel.

Periodically wipe the case with a dry cloth. Do not use abrasives or solvents

on this instrument.

Safety symbols

Comply with EMC

When servicing, use only specified replacement parts.

2. GENERAL DESCRIPTION

Thank you for using our SOUND MEASURING RECORDING SYSTEM. To

ensure that you can get the most from it, we recommend that you read and follow

the manual carefully before use.

Measurement settings and results (level values and bar graph) are shown on the

backlit LCD panel.

Data can be stored in the meter or directly saved on a computer through USB

interface. Recorded data can be further processed on a computer.

3. FEATURE

Sound recording function

Internal 128,000 records data logger

Micro SDHC for sound recording up to 32GB

PC software to synchronize sound and SPL data for analysis

USB Interface / Tripod compatible

Digital Sound Level Meter with Data Logger

4. SPECIFICATIONS

Standard applied: IEC 61672-1 Class 2, ANSI S1.4 Type2.

Frequency range: 20Hz ~ 8KHz

Measuring level range: 30 ~ 130dB

Frequency weighting: A / C

Microphone: 1/2 inch electret condenser microphone

Display: Liquid Crystal Display

Digital display: 4 digits

Resolution: 0.1dB

Display Update: 0.5 sec.

Analog display: 30 segment bargraph

Resolution: 2dB

Display Update: 50 mS

Time weighting: FAST , SLOW

Level ranges: Lo : 30 –90 dB

Med : 50 –110 dB

Hi : 70 –130 dB

Auto : 30 –130 dB

Accuracy: ±1.0dB ( under reference conditions @ 94dB, 1KHz )

Dynamic range: 60 dB

Alarm function: “OVER” is when input is more than upper limit of range.

“ UNDER ” is when input is less than lower limit of range.

Data logging Capacity: 128,000 records

AC output: 1 Vrms at FS ( full scale )

( FS︰means the upper limit of each level range.)

DC output: 10mV / dB

Power supply: 4 AAA, NEDA 24A, IEC LR03 batteries

Power life:

About 20 hrs ( alkaline battery ); about 5 hrs ( Sound Recording ON )

Power consumption: Approx. 0.2W

External power supply: 5 VDC ( micro USB plug)

Operation temperature: 0 to 40C ( 32 to 104F )

Operation humidity: 10 to 90%RH

Storage temperature: -10 to 60C ( 14 to 140F )

Storage humidity: 10 to 75%RH

Digital Sound Level Meter with Data Logger

Dimensions: 270(L)×63(W)×29(H)mm; 10.6(L)×2.5(W)×1.1(H)inch

Weight: 305g ( including battery )

Accessories: 1.5V battery X 4 pcs, carrying case, instruction manual, micro

SDHC card，USB cable, windscreen, 3.5plug, software.

Option: Microphone Extension Cable (10m length).

5. NAME AND FUNCTIONS

Digital Sound Level Meter with Data Logger

Display Screen:

SYMBOL FUNCTION

Battery capacity indicator

Auto power off indicator

Maximum/Minimum indicator

Time weighting indicator

Level range indicator

Bar graph

Time

Sound Record ON indicator

Frequency weighting indicator

Level reading

Date

Over-range signal indicator

microSD card is inserted

microSD card is not inserted

microSD card is full

Memory full

Recording datalogger indicator

Under-range signal indicator

Digital Sound Level Meter with Data Logger

○,1 Windscreen:

When making outdoor measurements in windy weather or when measuring

air conditioning equipment or similar, wind noise at the microphone can

cause measurement errors. Such effects can be reduced by using the

windscreen.

○,2Display screen.

○,3Power button:

Press the button to turn themeter on. To turn the unit off, press and hold

button down until the screen shows “OFF 3, 2, 1,”then the LCD screen

goes off.

LCD backlight on/off:

Press to turn on the LCD backlight. This makes it easier to read in dark

environment. Press again to turn off backlight. The meter can also turn

the backlight off automatically after 30 seconds to save battery power.

Auto power off.

To save battery life, by default, when the unit is powered on, it is under auto

power off mode.

The unit will power itself off after 30 minutes if no key operation.

Auto power off will be disable under the following 2 circumstances.

(1) When connecting to PC.

(2)When recording function is on process.

Disabled auto power off.

One may press and hold button and then power on the meter and the

will not show up to indicate that auto power off is disable.

Note: When the user powers it on, the LCD will show how much internal

memoryspace is available to use.

○,4MAX/MIN button:

Press button to enter the maximum and minimum recording mode.

Under this mode, the maximum value and minimum value will be stored and

automatically updated in the memory simultaneously.

Pressing the button will display the “ ” symbol and the maximum

value on the display. Pressing button again will display the “ ”

Digital Sound Level Meter with Data Logger

symbol indicator and the minimum value on the display.

Pressing button again will cause the maximum and minimum

indicators to blink together. Which means the meter is under maximum and

minimum recording mode. The value displays on the screen is the present

value.

To exit the maximum and minimum mode, press and hold button

down until the “ ”symbol is disappeared.

○,5REC button:

When pressing the button, the unit will start recording, and the “”symbol

display. To stop recording press again button.

○,6A/C button:

Sets frequency weighting to Aor C.

○,7FAST/SLOW button:

Sets the time weighting to Fast or Slow.

○,8Range control button:

Each time you press button, the level range will change between “Lo”

level, “Med” level, “Hi” level and “Auto” level in the circular.

○,9Microphone:

1/2 inch Electret Condenser microphone.

○,10 USB Interface

Connection to a Computer or external

power supply intput.

○,11 AC/DC signal output jack:

AC︰1 Vrms Corresponding to each

range step. (with frequency weighting)

Output impedance ≒100Ω

Output signal by standard 3.5mm coaxial socket signal on pin.

Note: At “Auto” level range, output signal is Auto select on “Lo” or “Med” or

“Hi” level range.

DC: Output: 10mV/dB

DC Signal

AC Signal Ground

Digital Sound Level Meter with Data Logger

○,12 microSD card slot

Note: Turn off the meter before inserting or removing SD card.

Format MicroSDHC card on a PC before using, only accept FAT32 file

format.

○,13 Tripod mounting thread:

For long-term measurements, the unit can be mounted on a camera tripod.

Proceed carefully, to avoid dropping the unit.

○,14 Battery compartment.

6. DATA LOGGER & INTERVAL SETUP

How to store data in memory?

Setup data logging interval:

(1) Press and hold “ ” button and then power on the

meter.

(2) Press INTV() button, “Int ”appears for interval, as

well as a flashing second display.

(3) Now set the desired recording interval in minutes and

seconds.Press ▲( )or ▼( )toincreaseordecrease

number, Max 1 minute can be set. The minimum value is

limited to “00:01”(=1s). After setting has been performed,

actuate the press INTV() button once, to get back to the

display of the instantaneously measured values. If you want

abort during a setup process, press button to cancel.

6.1 Turn On or Off Recording Function:

(1) When pressing the button to

start data logging, the meter will ask

whether to simultaneously record

sound.

Digital Sound Level Meter with Data Logger

(2) Press () button to select whether to activate the sound recording

function.

(3) Press button again to start data logging. The sound level values are

stored in a built-in memory. Press button again to stop recording.

(4) Audio files (*.wav) are stored in the microSDHC card and must be

downloaded via computer.

Note:

(1) During recording period, most of the buttons such as , ,

are inoperative. All other settings must be made before starting the

record operation.

(2) Do not use PC linking during data recording process which might cause

data and reading error.

(3) Any of the following 3 states will automatically stop recording, REC symbol

will disappear.

(a) Battery power is low:

The battery indicator “ ” shows the

remaining battery power. The number of black

bar decreases as the battery running out. When

the power is almost empty, “ ” will

disappear. Press button, LCD display will

show “Lo bat ”warning indication. If the meter

is under record mode, it will stop.

(b) The internal memory is full.

6.2 Clearing Stored Data :

If you want to clear the memory, power off the unit,

then press and hold button and then press

button and hold at least 5 seconds, then LCD

will show "CLr" and “SURE” to clear the memory.

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