Center 392 Bedienungsanleitung

392

INTEGRATING

SOUND LEVEL METER

SE-392

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 Recording Data……………………………………........7

6.2 Recording Interval Setup…………………...………….7

6.3 Clearing Stored Data…………………………………...7

7. LEQ & INTEGRATING SETUP……………………………8

8. SETTING THE DATE AND TIME………………………… 8

9. CALIBRATION PROCEDURES….………………………..9

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

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

12. MEASUREMENT………….……………………………..11

13. SETUP TestLink SE-392……………………..…...........12

Integrating Sound Level Meter

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 & Cleaning

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 selecting our Integrating Sound Level Meter. 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

Complies with the requirements of IEC 61672-1 class 2 standard

Fast, Slow time weighting settings

A and C frequency weighting settings

Storage of up to 64,000 records data logger

USB interface

Integrating Sound Level Meter

With Windows software

AC/DC signal output

4. SPECIFICATIONS

Standard applied: IEC61672-1 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: 50 segment bargraph

Resolution: 2dB

Display Update: 50 mS

Time weighting: FAST (125mS), SLOW (1 sec.)

Accuracy: ±1.4dB ( under reference conditions @ 94dB, 1KHz )

Dynamic range: 100 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: 64,000 records

MAX/MIN hold: Hold readings of the maximum and minimum value.

AC output:1VrmsatFS(fullscale).

DC output: 10mV / dB

Power supply: Four IEC LR6 (AA-size) batteries

Power life: About 60hrs ( alkaline battery )

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

Dimensions: 272(L)×83(W)×42(H)mm; 10.7(L)×3.3(W)×1.6(H)inch

Integrating Sound Level Meter

Weight: 390g ( including battery )

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

windscreen, 3.5plug, software, micro USB cable.

Option: Microphone extension cable (5m or 10m length).

5. NAME AND FUNCTIONS

Integrating Sound Level Meter

Display Screen:

SYMBOL FUNCTION

Battery capacity indicator

Auto power off indicator

Maximum/Minimum indicator

Fast/Slow time weighting indicator

Sound level range indicator

Bar graph

Time-weighted sound level reading sound

pressure level

Equivalent continuous sound level reading

Time and elapsed time indicator

(hour:minute:second)

Start/pause/stop integrating sound level

measurements

The integrating time

A or C frequency weighting indicator

Sound level reading (30.0-130.0dB)

Date and elapsed time indicator(year-month-day)

Over-range signal indicator

Recording memory bank full

Data recording is in process

Under-range signal indicator

The integrating time counting indicator

Integrating Sound Level Meter

○

1Power button:

Press the button to turn on. Press and hold the button for 3 seconds to

turn off.

Auto Power Off:

When the unit is powered on, it is under auto power off mode by default.

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:

Press and hold the button and then power on the unit. Keep holding

button until the meter starts function. Make sure the auto power off symbol

disappears from the display screen.

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

memory space is available to use.

○

2Integrating time button:

Press the button to set the integrating time.

○

3REC button:

Press the button to start recording, and the “ ”symbol will display.

Press button again to stop record.

○

4SET button:

To set calendar / clock / Interval time.

(1) Press the CLOCK( ) button to set the date and time.

(2) Press the INTV( ) button to set interval time.

○

5/UP/DOWN button:

Press or to increase or decrease number.

○

6FAST/SLOW button:

Press the button to set the time weighting to Fast or Slow.

○

7Leq/SPL button.

Press the button to Select Leq or SPL mode.

Integrating Sound Level Meter

DC Signal

AC Signal Ground

○

8MAX/MINbutton:

Press the button to enter the maximum and minimum recording mode.

Under this mode, the maximum 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 “ ”

symbol indicator and the minimum value on the display.

Pressing the 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 until

the “ ” symbol is disappeared.

○

9Back light button:

Press it to turn on the LCD backlight, which is making it easier to read in the

dark environment.

Press it again to turn off backlight. The backlight will turn itself off automatically

after 30 seconds.

○

10 A/C button:

Press the button to set the frequency weighting to A or C.

○

11 Start/Pause/Stop button:

Press the button to set the Leq measurement to continuance, pause or stop.

○

12 Microphone:

1/2 inch electret condenser microphone.

○

13 USB Interface:

Connect to a computer or external power supply input.

○

14 AC/DC signal output jack:

Connect the AC/DC output on the bottom of the unit to the level recorder.

AC: 1 Vrms Corresponding to 130dB. ( with frequency weighting )

DC: Output: 10mV/dB

Integrating Sound Level Meter

○

15 Tripod mounting thread:

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

Proceed carefully to avoid dropping the unit.

○

16 Battery Compartment.

6. DATA LOGGER & INTERVAL SETUP

6.1 Recording Data:

Press the button to start recording the measured values. The values are

stored in a memory location. Press button again to stop recording.

Note:

During the recording period, most of the buttons, such as the and

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

operation.

LCD will show FULL symbol when 64000 recorders are stored in memory.

6.2 Recording Interval Setup:

(1) Press the button and then press the INTV( ) button, the “ Int ”

appears for interval, as well as a flashing second display.

(2) Now set the desired recording interval in minutes and seconds. Use the

or button to increase or decrease number. Max 1 minute can be set.

The minimum value is limited to “00:01”(=1s). Press INTV( ) to store the

setting and exit this mode. If you want to abort during a setup process, press

button to cancel.

6.3 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 "CLr"

symbol will appear on the display indicating that the

data have been erased.

Note:

The battery indicator “ ” shows the remaining

battery power. When battery power is extremely

low( ), recording function cannot be performed.

Integrating Sound Level Meter

Press button, LCD display will show “ Lo bat ”warning indication. If the

meter is under the record mode, it will stop automatically.

7. Leq & INTEGRATING SETUP

7.1 Setting The Integrating Measurement Time︰

(1) Press the button to enter time setup.

(2) Press the or button to select 10sec, 1min, 5min, 10min, 20min,

30min, 1hr, 2hr, 4hr, 8hr, 16hr, 24hr setting.

(3) Press button again to finish setting.

(4) Press button to exit setting anytime.

7.2 Equivalent Continuous Sound level(Leq) Measurement:

Press the button to select Leq or SPL.

Under Leq measurement, “Leq” symbol is displayed.

(1) Press the button to start, the “ ▶” symbol and the elapsed

measurement time are displayed.

(2) When the Leq measurement time is up, it will automatically terminate

and the “ ■ ” symbol is displayed.

(3) During the Leq measurement, the button can be pressed to

pause, stop or restart. During the pause period, the Leq measuring values

are not evaluated.

(4) During the pause, the pause symbol “ ” is displayed.

(5) To stop the measurement, press the button for 2 seconds.

(6) If an under or over range condition occurs during Leq measurement, the

or symbolwillbekeptonthedisplay.

(7) During this procedure, / / buttons are inoperative.

8. SETTING THE DATE AND TIME

The unit is equiptted with a clock to stamp the measuring date / time.

Date / Time setting Sequence: Year - Month - Day– Hour : Minute : Second

(1) Press the button and then press the CLOCK( ) button to enter

the date and time setting mode.

(2) Press CLOCK( ) button to select year, month, day, hour, minute,

second setup.

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