Lutron Electronics SL-4013 Manual de usuario

separate probe, RS-232

SOUND LEVEL METER

Model : SL-4013

Your purchase of this

SOUND LEVEL METER

marks a step forward for

you into the field of

precision measurement.

Although this SOUND

LEVEL METER is a complex

and delicate instrument,

its durable structure will

allow many years of use if

proper operating

techniques are developed.

Please read the following

instructions carefully and

always keep this manual

within easy reach.

OPERATION MANUAL

TABLE

CONTENTS

1. FEATURES...............................................................1

2. SPECIFICATIONS.....................................................1

3. FRONT PANEL DESCRIPTION....................................4

3-1 Microphone......................................................

3-2 Display.............................................................4

3-3 Power On/Off Button.........................................4

3-4 Hold Button......................................................4

3-5 REC./Max. Min. Button......................................

3-6 Max. Hold Button..............................................4

3-7 A/C Wei

htin

Button........................................4

3-8 Time Wei

htin

( Fast / Slow ) Button................

3-9 Ran

e Button...................................................

3-10 AC Output Socket............................................4

3-11 Calibration VR.................................................4

3-12 RS232 Computer Interface Socket....................

3-13 Battery compartment / Cover........................... 4

3-14 Stand.............................................................4

3-15 BNC socket......................................................4

3-16 BNC Plu

.........................................................4

3-17 Probe handle...................................................

3-18 Probe holder....................................................4

4. MEASURING PROCEDURES.......................................5

5. AUTO POWER DISABLE............................................8

6. MEASURING CONSIDERATION..................................8

7. SIGNAL OUTPUT......................................................8

7-1 AC output..........................................................8

7-2 RS232 computer interface ........................................

8. REPLACEMENT of BATTERY......................................10

9. CALIBRATION ........................................................

10. FREQUENCY WEIGHTING CHARACTERISTICS

OF A & C NETWORKS............................................11

11. TIME WEIGHTING (FAST & SLOW)

CHARACTERISTICS...............................................

1. FEATURES

* Separate sound probe, easy operation.

* A & C weighting networks meet IEC 61672 class 2.

* 0.5" standard microphone head.

* Time weighting (Fast & Slow) dynamic characteristic

modes.

* AC output for system expansion.

* RS232/USB computer interface.

* Auto range & Manual range selection.

* Available for external calibration adjustment.

* Condenser microphone for high accuracy & long-term

stability.

* Memory function to store the Max. & Min. value.

* Hold and MAX. Hold functions.

* Operation key used push button.

* Large LCD display for low power consumption & clear

read-out even in bright ambient light condition.

* Using the durable, long-lasting components, including a

strong, light weight ABS-plastic housing case.

* Small and light weight design allow one hand operation.

2. SPECIFICATIONS

Display 52 mm x 32 mm LCD (Liquid crystal

display), 5 digits with indicator.

Function dB ( A & C frequency weighting ), Time

weighting(Fast, Slow), Hold, Memory

( Max. & Min. ), Max. hold, AC output,

RS232 output.

Measurement 30 - 130 dB.

Range

Resolution 0.1 dB.

Range selector

Auto range :

30 to 130 dB.

Manual range :

3 range, 30 to 80 dB, 50 to 100 dB,

80 to 130 dB, 50 dB on each step,

with over & under range indicating.

Accuracy * Meet IEC 61672 class 2, tested under

(

23± 5

)

℃

Input signal level on 94 dB

frequency range from 31.5 Hz to

8 k Hz, refer to page 11.

Frequency 31.5 to 8,000 Hz.

Microphone type Electric condenser microphone.

Microphone size Out size, 12.7 mm DIA. ( 0.5 inch).

Weighting Network Characteristics of A & C.

Range selector Manual range: 3 ranges ( 30 to 80 dB,

50 to 100 dB, 80 to 130 dB ).

Auto range: 30 - 130 dB.

Time weighting Fast - t= 200 ms, Slow - t = 500 ms,

( Fast & Slow ) * "Fast" range is simulated the

human ear response time.

* "Slow" range is easy to get the avg.

values of vibration sound level.

* The "Fast" & "Slow" response

range are designed to meet IEC 61672

class 2 requirement.

Calibrator B & K (Bruel & kjaer), MULTIFUCTION

ACOUSTIC CALIBRATOR 4226.

Output Signal

* AC output :

AC 0.5 Vrms corresponding to each

range step.

Out put impedance - 600 ohm.

* RS232 output.

Output terminal

Terminal 1 :

RS 232/USB PC serial interface.

* Connect the optional RS232 cable

UPCB-02 will get the RS232 plug.

* Connect the optional USB cable

USB-01 will get the USB plug.

Terminal 2 :

AC output terminal.

Terminal socket size :

3.5 mm dia. phone socket.

Calibration VR Build in external calibration VR, easy to

calibrate on 94 dB level by screw driver.

Operating Temp. 0 to 50 ( 32 to 122 ).℃℉

Operating Humidity Less than 80% RH.

Power Supply DC 9V battery, 006P, MN1604(PP3) or

equivalent.

Alkaline or heavy duty type.

Power Approx. DC 6 mA.

Consumption

Dimension

Main instrument :

207 x 68 x 29 mm ( 8.1x2.7x1.1 inch ).

Sound probe :

170.5 x 24.5 x 19 mm ( 6.7x1.0x0.7 inch )

Probe cable length :

200 cm ( 78.7 inch ) max.

Weight 422 g/0.93 LB ( including battery ).

Accessory Included Instruction manual ..................... 1 PC.

Separate sound probe................. 1 PC.

Probe holder............................... 1 PC.

Optional Hard carrying case, CA-06

Accessories Wind shield ball, SB-01

94 dB Sound Calibrator :

Model : SC-941. SC-942.

Sound wind shield ball

Model : SB-01

RS232 cable ( isolated RS232 cable ) :

Model : UPCB-02.

USB cable :

Model : USB-01

Application windows software :

Model : SW-U801-WIN.

3. FRONT PANEL DESCRIPTION

Fig. 1

3-1 Microphone 3-10 AC Output Socket

3-2 Display 3-11 Calibration VR

3-3 Power On/Off Button 3-12 RS232 Computer Interface

3-4 Hold Button Socket

3-5 REC./Max. Min. Button 3-13 Battery compartment / Cover

3-6 Max. Hold Button 3-14 Stand

3-7 A/C Weighting Button 3-15 BNC socket

3-8 Time Weighting 3-16 BNC Plug

( Fast / Slow ) Button 3-17 Probe handle

3-9 Range Button 3-18 Probe holder

4. MEASURING PROCEDURE

1) * Connect the " BNC plug " ( 3-16, Fig. 1 ) into the " BNC

socket " ( 3-15, Fig. 1 )

* Insert the " Probe handle " ( 3-17, Fig. 1 ) into the "

Probe holder " ( 3-18, Fig. 1 ).

* Power on by pressing the " Power On/Off Button " ( 3-3,

Fig. 1 ) , the meter's default function is " Auto range ",

" A frequency weighting " & " Fast time weighting ". The

lower LCD display will show the unit " A. Fast Auto ".

2)Select " A " or " C " frequency weighting by pressing the

" A/C Button " ( 3-7, Fig. 1 ) .

Note :

a. The characteristic table of A, C weighting, please

ref. page 11.

b. The characteristic of A weighting is simulated as

the " Human Ear Listening " response.

Typically always select the A weighting when makes

environmental sound level measurement.

c. The C weighting characteristic is near the " FLAT "

response. Typically it is suitable for checking the

noise of machinery ( Q.C. check ) & knowing the

real sound level of the tested equipment.

3)Determine proper measuring range by pressing the

" Range Button " ( 3-9, Fig. 1 ).

After power on the default range is " Auto range ".

In the same time the lower right display will show the text

of " Auto ".

Under the auto range, press the " Range Button " once

will enter to the manual range 1, range 2, rang 3. There

are still 3 manual ranges for your choice :

Manual range 1 , 30 - 80 dB range :

Display will show the unit of " 30 - 80 ".

Manual range 2 , 50 - 100 dB range :

Display will show the unit of " 50 - 100 ".

Manual range 3 , 80 - 130 dB range :

Display will show the unit of " 80 - 130 ".

4) According to various measuring sound source, select the

Time Weighting ( Fast or Slow ) by pressing the " Time

Weighting Button " ( 3-8, Fig. 1 ).

Note :

a. If select the function of " Fast " time weighting, the

display will show the unit of " Fast ".

b. If select the function of " Slow " time weighting, the

display will show the unit of " Slow ".

5)Hold the instrument in hand and point the microphone at

measured noise source, the sound level value ( dB ) will be

displayed on LCD.

6)Max. Hold

If intend to maintain the maximum value, press

the " Max. Hold Button " ( 3-6, Fig. 1 ) and a " P.H "

symbol will show on the top LCD display. Press the

" Max. Hold Button again to exit the function.

Note :

a. When make the Max. Hold measurement under

slow varying noise environment, please select the

" Auto range "

b. When make the Max. Hold measurement under

pulse noise environment, it should select to the

convenient " manual range "

7)Data Hold

During the measurement, pushing the " Hold Button "

( 3-4, Fig. 1 ) will hold the measured value & the LCD

will indicate " HOLD " symbol.

* Push the " Hold Button " again to release the data hold

function.

8)Data Record ( Max., Min. reading )

* The data record function displays the maximum and

minimum readings. To start the DATA RECORD

function, press the " REC. Button " ( 3-5, Fig. 1) once.

" REC " symbol will appear on the LCD display.

* With the " REC " symbol on the display :

a)Push the " REC. Button " ( 3-5, Fig. 1 ) once, the

" REC Max " symbol along with the maximum value

will appear on the display.

If intend to delete the maximum value, just press

the " Hold Button " ( 3-4, Fig. 1 ) once a while, then

the display will show the " REC " symbol only &

execute the memory function continuously.

b)Push the " REC. Button " ( 3-5, Fig. 1 ) again, the

" REC Min " symbol along with the minimum value

will appear on the display.

If intend to delete the minimum value, just press

the " Hold Button " ( 3-4, Fig. 1 ) once a while, then

the display will show the " REC " symbol only &

execute the memory function continuously.

c) To exit the memory record function, push the

" REC " button at least 2 seconds continuously. The

display will revert back to the current reading.

5. AUTO POWER DISABLE

The instrument has built-in " Auto Power Shut-off "

in order to prolong battery life. The meter will switch

off automatically if none of the buttons are pressed

within approx. 10 min.

To de-activate this feature, Select the memory record

function during measurement, by pressing the

" REC. Button " ( 3-5, Fig. 1 ).

6. MEASURING CONSIDERATION

1)Please should select the proper time weighting ( A

weighting or C weighting ). Typically the A weighting

selector will be engaged.

2)Please don't keep or operate the instrument at high

temperature & humidity environment for a long period.

3)Keep microphone dry & avoid serious vibration.

7. SIGNAL OUTPUT

7-1 AC output

The instrument is provided an 3.5 mm dia. phone socket

( 3-10, Fig. 1 ) for AC output, it is used to connect with

analyzer, level recorder, tape recorder, controller...etc.

Note :

AC 0.5 Vrms corresponding to each range step.

Output impedance - 600 ohm.

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