Lutron Electronics SL-4033SD User manual

SD ard real time datalogger, R5232/USB
Frequency weighting and Time weighting
metfEC 67672 class 7
SOUND LEVEL METER
Model: SL-4O33SD
Your purchase of thls
SOUND LEVEL METER
with SD CARD
DATALOGGER maTK a
step fonlrrard for you
into the field of
precision measurement,
Although this METER is
a complex and delicate
instrument, ib durable
structure wlll allow
many lrears of use if
proper operating
techniques are
developed. Please read
the following
lnstructions carefully
and alwap keep this
manual wlthln easy
reach.
i
L'lr,
ln
I
OPERATION MANUAL

TABLE OF CONTENTS
1. FEATURES........
2. SPECrFICATIONS...................,.....
3. FRONT PANEL DE5CRIPTION........
3-1
3-2
3-3
3-4
i 3-5
3-6
3-7
3-8
3-11 Callbratlon vR
3-12 PS-232 or.ltput term|nal.........,..
3-13 DC 9V adapEr
3-14 Trlpod Flx Nut.
3-15 Battery Cover Screws...,............ .6
)
)............
I
2
5
6
6
6
,6
6
.6
.6
6
.5
.6
5
.6
.6
6
6
.6
3-17 Batt€ry
3-18 SD card
5. DATALOGGER,..
5-1 functlon.
1 second )
!! 0 se@nd
6
9
9
5-2
5-3 10
1t
t2
t2
12
t4
15
16
t7
L7
18
18
19
t9
19
20
2l
22
5-5 Check samdhg Ume lnhnnatlon...
5{ SD cad Data sfircture..,...
6. SavirE data from the SD card to ttE computer.,,....,.....
7. ADVANCED SETTING.......,..............
7-1 Set dock tlm€ ( Year/Montfy'Date, Hour/Mlnute/ Second )......
7-2 Doclmal polnt of SD card seturE..........,............
7-3 Auto power oFF management
5-4
9. BATTERY
10. RS232 rc serlal lnterface.
llCAUBRATION
12. FREQUENC"Y WEIG}MNG CHARACIERISTICS
OFA&CNETIA'ORI(S
13. TrME WEIGHTING (FAST & SLOW)
CHARACTERIsnCS
14. P4TENT..........
7-{ Set beep€r Sound O,VOFF.....,.........
7-5 set samdlng Unre .....................
rc SD rnernory card format..,.....,....
8. POWER SI,PPLY from DC ADAMR
22
23
1. FEATURES
$
fl
* Frequency and Tlme welghHng are deslgned to meet
IEC 61672 dass 1.
* A & C welghung networks @mply wlth standards.
* 0.5" standard mlcrophone head.
* f ime welghting (Fast & Slow) dynamic characterlstic
modes.
* Bulld External callbration VR.
I Auto range & Manual range selection.
* Available for e)cemal calibraHon adjustment.
* Condenser mlcrophone for high accuracy & long-term
stabillty.
* Memory fundion to store the Max. & Min. value.
* Hold and Peak Hold functions.
* Real Ume SD memory card Datalogger, it Built-in Oock
and Calendar, rcal tlme data re@rder, sampllng tlme set
from 1 second to 3600 seconds,
* Manual datalogger ls avallable ( set the sitmpllng
tlme to O se@nd ), during o(ecute the manual datalogger
functbn, lt can set the different posltion ( locatlon ) No.
( pcluon 1 to poslt{on 99 ).
* Innovation and easy operaUofl, @mputer is not need b
setrip odra sofiware, after o(ecute datalogger, Just take
away the SD cad from the meEr and plug ln the SD card
lnto the @mpuEr, lt can dovnload the all the measured
value wlth the Ume lnbrmatbn ( year/month/date/
hour/mlnute./second ) to Ble E)(cel dlrectly, then user can
make the further data or graphh anah,sls by themselt es'
* SD card capadty : 1 GB to 16 GB.
* LCD wlE! green lEht backllght, easy readlng.
* Can default auto porver ofr or manual power off'
* oata hold, record max. and mln. reading.
* Mhrocomputer drcuit hbh acoracy.
* Porrer by UM3/M ( 1.5 v ) x 6 batterles or DC 9V adapter.
* RS232/USB rc COMPUTER lnterface.
* HeaW duty & compact housing case.
1
Button,

I
ECI ICATIONS
Circuit Custom one-chip of microprocessor
circult. tsI
Display LCD slze : 52 mm x 38 mm
LCD with reen ht
I{hsurement
Ranqe 30 - 130 dB.
Resolution 0.1 dB.
Function dB ( A & C frequency welghUng ),
Time welghtlng ( FasL Slow ),
Peak hold, Data hold
Record ( Max., Min. ).
(23*s3) Characteristlcs of " A " frequency
weightlng network meet IEC 61672
class 1
Under 94 dB input signal, the accuracy
are :31.5 Hz * 2.0 dB
53 Hz * 1.5 dB
L25 Hz * 1,5 dB
250 Hz * 1.4 dB
500 Hz * 1.4 dB
lK tlz * 1.1 dB
2K Hz :l 1.6 dB
4K Hz + 1.6 dB
8 KHz + 2.1 dB, -3.1 dB
72.5KHz + 3.0 dB, -6.0 dB
16 KHz + 3.5 dB, -17.0 dB
Remar*:
TIE abote spec. ae Bd urfu the
envlronmart RF fuH Sbsrgth @
ttun 3 V/t4 & @tcttcy l8 dbn 3l)
MHz only.
2
Frequency
Weighting
Network
Characteristics of A & C.
weighUng
e characterisUc is simulated as "Human
Ear Llstlng" response. Typlcal, lf maklng
the envlronmental sound level
measurement, always select to A
ng.
C weighung
characterisuc is near the "FLAT'
response. Typlcal, it ls suitable for
checklng the noise of machinery (Q.C'
& knowing the sound Pressure
level of the tested ul ent,
llme
weighting
(Fast & Slow)
Fast - t= 200 ms
* "Fastn range is simulated the human ear
response tlme welghtlng,
Slow-t=500ms
* "Slow" range ls easy to get the average
rralues of MbraUon sound level.
othe measurement value,
keep the peak ( max. ) measurement
ue,
Range selector 30 to dB.
Manual nnge:
3 range, 30 to 80 dB, 50 to 100 dB,
80 to 130 dB, 50 dB on each step,
wlth o/er & under range lndlcaunq,
Frequency 31.5 to 16,000 Hz,
Microphone
tyDe Electrlc condenser microphone.
Mlcrophone
size 6ut size, t2,7 mm DIA. ( 1/2 lnch)'
3
2.
lData hold
LI
ITee;z€
a

Calibration VR Bnild ln external calibra0on VR, easv to
calibrate on 94 dB lwel by screw driver.
* Callbrated vla oftemal SOUND
CALIBRATOR ( SC-941, oDtional ).
Calibrator B & K (Bruel & k,aer), MULTIFUNCTION
ACOUSTIC CALIBMTOR 4226.
Datalogger
Sampling Time
Setting range
Auto 1 second to 3600 seconds
@ $@lng frnean ftt lo I wil,
fut nstpty fu nay loss.
Manual Push Ble data logger button
once will save data one Hme.
@ gtlEerrvlhv tilrE to
0grtd,
@f,bnualn@, analeMthe
1togg@tut (L@M, )no,
Data error no. S0.1% of total saved data Wplcally.
Memory Card SD memory card. 1 GB to 16 GB.
Advanced
setting * Set clocr( Urne ( Year/t{ontft/Date,
Hou,/Mlnute/ Second )
* Declinal polnt of SD card setdng
t Aub povver OFF managern€lt
r S€t b€ep Sourd OIIUOFF
* set saflDllno t me
t SD rnemry cad Fomat
Over Indication Show'----'
Data Hold Freeze the dlsolay readlns.
Memory Recall Maxlmum & Mlnlmum value,
Sampllng Time
of Dlsolay Approx. l seaond,
DaE Output RS 23UUSB PC computer lnterface.
* @ttrd tl,€ ofutal R*r2 @bE
urcbo2 wll fitilre Rgrz pftry.
* Cot nfit the @tal USB dhle
U#01 wlllNttEt$Bplw.
AC output AC 0.5 Vrms correspondlng b each
range step.
* Oubut lmo&nce : 600 ohm.
4
Power off Auto shut off savis battery life or
manual off by push button.
OperaUng
TemDerature 0to50C.
OperaUng
Humldlw Less than 85% R.H,
Power Supply *.Alkallne or heavy duty DC 1.5 V battery
( UM3, AA )x 6 PCs, or equivalent.
*.DC 9V adapter inpuL ( AQDC power
adapter ls opuonal ).
Power Current Normal operaHon ( wlo SD card save
data and LCD Backlight is OFfl :
Approx, DC 12 nA,
When SD card save the data but and
LCD Backlight ls OFF) :
Awrcx. rc51 mA.
* .If L@ M&lght on, the power
corwump on will increax appmx.
6 mA.
Wei0ht tl89 s/1.08 13.
Dimenslon 245 x 68 x.45 mm.
(9.6x2.7x 1.8 lnch ).
Accessorles
Included * Instructlon manua|,.,,..,...,., --- -- I rc
'r' Hard carrylno case, CA-06.........,..,1 PC
Optional
Accessories * Sound callbrator ( 94 dB ), SC-941.
* Sound callbrator ( 94llt4 dB ), SC-942.
* Sound wlnd shleld ball, SF01
* SDCard(2GB)
* USB cable, US,F01.
* RS232 cable, UPC&02.
* Data Acqulsluon software,
sw-u801-wIN,
* AC to DC 9V adapter.
* Soft carrying case, CA-05A.
5

3. FRONT PANEL DESCRIPTION
3-S
3-1
t-2
3{
3-7
3-15
3.3
3.{
3{
3{
3-t4
3-t8
3-1'.|
3-to
3-t I
t-12
3-13
Fig. 1
3-18
3-t Disolay.
i-i ffier'eutton ( Esc, BacHight Button )
3-3 Hold Button ( No(t Button )
3-4 REC Button ( Enter Button )
i-; ilno-.-ild aa Button, Tlme check Button )
;;;il1-*;;i iE,ton, su'Pins 'heck Button )
i-z ritUS*, Button ( sET Button )
g-a Peai Horo Button ( Logger Button )
3-9 MicIophone
3-10 AC ouFut terminal
3-11 Calibrauon VR
3-12 RS-232 outPut terminal
3-13 DC 9V adapter socket'
3-f4 Trlpod Fix Nut
3-15 8attery Co/er Ssews
3- 16 Stand
3-17 Battery compartmenvcover
3-18 SD card socket 6
-l )
-<Ft
I
MEASURING PROCEDURE
4.
4-l fuund tevel meEr
l) Power on by pressing the " Power On/Off Button'( 3-2,
Fig. 1 ) , the mete/s default function ls " Auto range ",
" n ft"qr"n.y weighting " & " Fast time weighting "' The
LCD display will show the unit " A. Fast Auto ".
2) Select ' A ' or " C " frequency weighting by pressing the
" Ay'C Button " ( 3-6, Fig. 1 ) .
Note :
a. The characteistk table ofA, C weighting, please
rcf. page 22.
b. me characteristic of A weighting is simulated as
the " Human Ear Listenlng " resPonse.
Typically atways seM the A weighting when makes
environmental sound level measurement.
c. The C weighting dtaracteri$lc is near the " FUT "
t6ponse. Typically it is suibble for cltxking the
noise of nachinery ( Q.C. dreck ) & knowing the
rcal sund level of the tesftrd quipment
3) Determine proper rneasuring range by pressing the
" Range Button " ( 3-5, Fig' f ).
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 " ( 3-5,
Fig. 1 ) onc steP bY step will enter
to the manual range ( range 1, range 2, range 3 ) and
auto range in sequence. There are still 3 manual ranges
for your choice :
7
-
E

* lvlanual 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 nnge 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 " ( 3-7, Fig. 1 ).
Note :
a. If select the function of " Fast " time weighting, the
dbplay will show the unit of " FAST'.
b. If select the function of " Slow " time weighting, the
display will show the unit of " SLOW ".
4-2 Dab Hold
During the measurement, press the " Hold Button " ( 3-3,
Fig. 1 ) once will hold the measured value & the LCD will
display a' HOLD' symbol.
Press the " Hold Button " once again will release the data
hold function.
4-3 Dab Reed ( Max., Min. tadlng )
l)The data record function records the maximum and
minimum readings. Press the " REC Button " ( 3-4, Fig.
1 ) once to start the Data Record functlon and there
will be a " REC " symbol on the display.
2)With the " REC " symbol on the display :
a) Press the " REC Button " ( 3-4, 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 " ( 3-3, Fig, 1 ) once, the display
will show the " REC " symbol only & execute the
memory function continuously.
8
b)Press the " REC Button " ( 3-4, 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 " ( 3-3, Fig. 1 ) once, the display wil
show the " REC " symbol only & execute the
memory function continuously.
c) To exit the memory record function, just press the
" REC " button > 2 seconds at least. The display will
reveft to the current reading.
4-4 LCD Racklight ON,/OFF
After power ON, the " LCD Backlight ,,will light
automatically. During the measurement, press the
" Backlight Button " ( 3-2, fig. 1 ) once will turn OFF the
" LCD Backlight ".
Press the " Backlight Button " once again will turn ON the
" LCD Backlight " again.
9
5-l Prcpntfon bebrc exoclrE dabloggr* ftncilon
a, Insert the SD card
frenarg a " SD memory card ,,( 1 GB to 16 GB, optional ),
insert the SD card into the n SD card socket o ( 3-19, Fig. 1),
The front panel of the SD card should face against the -
the down case.
b. SD card Format
If SD card just the first time use into the meter, it
recommend to make the " SD card Format " at first, ,
please refer chapter 7-6 ( page 19 ).
5. DATALOGGER

I
a
c. Time setting
If the meter is used at first Ume, it should to adiust the
clock time exactly, please refer chapter 7-1 ( page 16 ),
d, Decimal format setting
The numerical data structure of SD card is
default used the " . " as the deiimal, for
example "20.6" '1000.53" . But in certain
countries ( Europe ...) is used the " , " as the
decimal point, for example " 20, 6 '
"1000,53'. Under such situation, it should
change the Decimal character at first, details
of setting the Decimal point, refer to Chapter
7-2, page L7,
* It recommend strongly, do not use memory cards that
have been formatted by other meter or other
installatlons ( such as camera,.. )
Reformat the memory card with your meter-
t It the SD mernory card exlst the trouble during
format by the meter, use the Computer to reformat
again, it can fix the Problem,
5-2 Auto Dablqger ( ffi amplhtg tirrE Z 7 *ond )
. Slart the data
Press the " REC Button (3-4, Fig. 1 ) once , the LCD will
show the text' REC ", then press the " Logger Button " (
3-8, Fig, 1 ), the " REC 'will flashlng , at the same time
the measuring data along the time information will be
saved into the memory circuit,
The Dlcplay will shorr alco show text " LOGGER "
when tlre data save into dle memoty clrculL
Remark :
How to set the ampling time, refer to Chapter 7-$
page 18. 10
During execute the Datalogger function , if press the
" Logger Button " ( 3-8, Fig. 1 ) once will pause the
Datalogger function ( stop to save the measuring data
into the memory circuit temporally ). In the same time
the text of " REC " will stop flashing.
Remark :
If press the " Logger Button " ( 3-8, Fig. I ) once agan
will execute the Datalogger again, the text of , REC " wrTl
flashing .
5-3 Manual Dablogger ( *t ampllng dme = O
wnd )
c. Finish the Datal r
During pause the Datalogger, press the " REC Button ,'
( 3-4, Fig. 1) continuously at least two seconds, the " REC ,,
indicator will be disappeared and finish the Datalogger.
Rana*:
When the htUry is under the tow bttety @ndttion
(shoy the low bdery tndtcabr ) the Dablogger
ft nctlon ls dlfible.
b. Pause the datal
a. Set sam li time iS to 0 second
Press the " REC Button ( 3-4, Fig. 1 ) once, the LCD will
show the text " REC ", then press the ,' Logger Button ,,
( 3-8, Fig. 1 ) once, the " REC " will flashing once,
at the same time the measuring data along the time
information and the Position no, will be saved into the
memory circuit.
11

Remark
Lower Display will show the Posih'on/Location no,
( Pl, P2,.. P99 ) .
During a<ecute the Manual Datalogger,
prss-the 'SET Butlon ' ( 3'Z Fig. I ) once, d,9 lf
'the ",ll Eutton " ( 3-5 Fig. 1) or' V Button ' ( 3'O
Fg. 1 ) to set the measuring position ( 1 to 99, for
example roon I to room 99 ) to identify the
measurement location' Afrer finish the adiustment
locattbn no,, press the " Enter Button " to entry,
Press the " REC Button " ( 3-4, Fig. 1) continuously at
least two seconds, the " REC " indication will be
disappeared and finish the Datalogger.
5-4 Check tlme lnformatlon
During the measurement if press " Time check Button "
( 3-5,-Fig. 1 ) > 2 seconds, the lower LCD display will
iresent ttre Ume information of Year/Month, Date/Hour,
Minute/Second.
5-S Chdt omPling dme inbtmadon
During the measurement , If press " Sampling 9!"9!r
suttoi " ( 3-6, Fig. 1 ) > 2 seconds, the lower LcD display
will present the Sampiing tlme information in second unlt'
5-6 SDArd Daa stactate
1) When the SD card ls used into the meter, the SD card
'When the first time, the SD card ls used into the meter,
the SD card will generate a folder :
suL1
b. Finish the Datal f
L2 IJ
sLA01099.XLS
st302\
sr-A02001.x1s
sLA02002.xLS
Remark : M : lqax. value is 10.
2)If the first time to execute the Datalogger,
under the route SLAo1L will generate a new
file name SLA01001.XLS.
After exist the Datalogger, then execute again,
the data will save to the SLA01001.XLS until
Data column reach to 30,000 columns, then
will generate a new file, for example S1A01002'XLS
3)Under the folder SLA0ll if the total files more
than 99 files, will generate anew route, such as
sLA02\ .......,
4)The file's route structure :
SLAOl\
s1A01001.xls
sLAo1002.xLS
st-Ao2099.X1S
sLA)oq

6. Saving data from the SD card
to the com EXCEL software
uter
l)After execute the Data Logger function, take away the
SD card outfrom the " SD card socket'( 3-18, Fig. 1 ).
.'*, 2)Plug in the SD card into the Computer's SD card slot
( if your computer build in this installation ) or
insert the SD card into the " SD card adapter ". then
connect the " SD card adapter " into the computer.
3)Power ON the computer and run the " EXCEL software ".
Down load the saving data flle ( for example the file
name : SLA0100I.XLS, SU01002,XLS ) from the SD
card to the computer, The savlng data wlll present into
the EXCEL software screen ( for example as following
EXCEL data screens ) , then user can use those EXCEL
data to make the further Data or Graphic analysis
usefully.
EXCEL data screen ( for example )
AI - C:,-.,,,,-",,..-,,,#...1 rt"o"
IeTl,L-=-a---l B
I lphce lo"r"
T l-.--Tre,au$
j I z zrxr,,lrrl6
c! D . ;.. E. .1.
4
I
I
7
8_
9.-
lo
1l
L2
l3
l4
IT
16
3 2009/10/16
4 N9^Ot16
5 200910/16
6 2009/10/16
? ?fn/gtlut6
a miluto
9 20o9.tLut6
ro 2009/10/16
Ll 2009A0A6
L2 ?po9.A0/l6
13 2009/10/16
t4 2soe.ILOI!6
15 2009/10/16
Timc Value Uhit
16,47A5 60A dB
I6.4?fr7 66.9 dB
16:47;09 68.8 dB
t6'17:ll 7l dB
16:47:13 423 db
16:4?:15 92.3 dB
16z17zl? 93.-t dB
16:4?:19 93.1 dB
16z1721 89.8 dB
16:47.23 9O.2 dB
16:47225 89.9 dB
16:4727 93.2 dB
L6.4129 90.? dB
16:4?:31 &2 dB
16:47:33 86.2 dB
t4
EXCEL graph reen ( for example )
xl.
,irl
I
VANCED SETTING
7. AD
Under do not execute the Datalogger functlon'
;;d; isrr eutton " ( 3-7, Fig, 1 ) conunuously at
L;t ,;;;^J. ,nttt "ntil, utu '-Advanced setdng " mode'
if,"n ,t"o tft" ' Next Button " (3-3, Flg' 1 ) once a whlle
mi"ql"n." to select the slx maln funcdon, the lower
dlsplay wlll show :
dAtE.....,Set clock tlme ( Year/Month/Date, Hour/Minute/
Second )
dEC.......Set SD card Dedmal character
PoFF..... Auto power OFF manaqement
bEEP.....Set beePer sound ON/OFF
SP-t .....Set sampllng Ume
Sd-F.'... SD memory card Format
15
', " '.t.
rili

Rema*:
Dudng execub tfie " Advanad *tdng " findon,
lf ptw " Eff Butbn " ( 3-2, Fig. 7 ) ona wlll exlt
tfie "AdvandSetdng " fiincffin, tlreLCDwill
raatm b normal *fiaeo.
7-l *tc{o& time ( Yar/tlonth/DaE,
Hour/MlnuE/ &ond )
When the lower display show " dAtE "
l)Press the " Enter Button " ( 3'{, Fig. I ) once,
Use the " A Button " ( 3-5, Fig. 1 ) or " V Button "
( 3-6, Fig. I ) to adjust the value ( Settlng start from
Year value ). After the desircd value is set, prs the
" Enter Button " ( 3-4, Fig. 1 ) once wlll goihg to
next value adjustment ( for example, first setting
value is Year then next to adjust Month, Date, Hour,
Minute, Second value ).
2)After set all the time value ( Year, Month, Date, Hour,
Minute, Second ),
the screen will Jump to " SD card Decimal character "
setting screen ( Chapter 7-2 ).
Remark:
After the time value is settlng, the lntemal cluk will
run prccisely even Power is off ( The bttery ls under
normal conditio4 no low battety andldon ).
16 t7
7-2 Decimal polnt of SD @rd settlng
The numerical data structure of SD card is default used
the " . " as the decimal, for example '20'6' '1000'53' .
But in certain countries ( Europe ...) is used the " , " as
the decimal point, for example "1000,53".
under such situation, it should change the Decimal
character at first.
When the lower di show " dEC "
l)Use the " A Button " ( 3-5, Flg. 1 ) or " V Button "
( 3-6, Flg. 1 ) to select the upper value to " bASIC " or
" Euro ".
bASIC - Use " . " as th€ Declmal polnt wlth default.
Euro - Use ", " as Ure Declmal polnt wlth defaulL
2)After select the upper text to " bASIC ' or " Euro ",
press the " Enter Button " ( 3-4, Fig. 1 ) will save the
setting function with default.
7-3 Aub pwer OFF management
When the lower di show " PoFF "
1)Use the " A Button " ( 3-5, Fig. 1 ) or " V Button "
( 3-8 FiS, 1 ) to select the upper value to " yES " or
t' no ".
yES - Auto Power Off management wlll enable.
no - Aub Power Off managemsnt wlll dlsable.
2)After select the upper text to u yES " or " no ", press the
" Enter Button " ( 3a, Fig. 1 ) will save the setting
function with default.

7-4 *t beeper flund ON/OFF
When the lower dlsplay show " bEEP "
yES - Meter's beep sound wlll be ON wlth defaulL
no - Meter's beep sound wlll be OFF wlth dcfault.
Remark :
After execute the datalogger functio4 the buzzer sound
will off automadcally fu prcvent any inteierence of
the measurement
7-5 Setempfing tlme ( seonds )
When the lower display show " SP-t "
l)Usethe" A Button " ( 3-5, Flg. 1 ) or " Y Button " (
3-6, HS. 1 ) to adjust the value ( 0, 1,2,5, lO,3Oi@,
120, 300, 600, 1800,3600 seconds ).
Remart< :
If selxt the sampling dme to " 0 seand ", it is rcady
br manual Dablogger.
2)After the Sampling value is selected, press the
" Enter Button " ( 3-4, Fig. 1 ) will save the setting
function with default.
1B
7-6 SD memory atd Format
When the lower d show"SdF"
1)Usethe " Button " ( 3-5, Fig. 1 ) or " V Button,, (
3-6, Fig, 1 ) to select the upper value to " yES ,,or
yES - Intend to Sormat the SD memoty card
no - ?{ot execute th€ SD memory card format
2)Ifselect the upper to " yES ", press the " Enter Button
" ( 3-4, Fig. 1 ) once again, the Display wlll show text
" yES Ent " to confirm again, if make sure to do the
SD memory card forma! then press " Enter Button "
once will format the SD memory clear all the existing
data that already saving into the SD card,
l)When the left comer of LCD display show ', ffi,, it
is necessary to replace the battery. However, in-spec.
measurement may still be made for several hours after
low battery indicator appears before the instrument
become inaccurate, 19
The meter also can supply the power supply ftom the
DC 9V Power Adapter ( optlonal ). Insert the plug of
PowerAdapter lnto " DC gV powerAdapter Input Socket,'
( 3-13, Fig. 1 ). The meter wlll permanent power ON
when use the DC ADAPTER power supply ( The power
Button functlon ls dlsable ).
9. BATTERY REPLACEMENT
1)Use the " A Button " ( 3-5, Flg. 1 ) or " Y Button "
( 3-6, Fig. 1 ) to select the upper value to " yES " or
uno'.
2)After select the upper text to " yES ' or " no ", press the
" Enter Button'( 3-4, Flg, 1 ) rvlll save the setdng
function wlth default.
8. POWER SUPPLY from DC
ADAPTER

2) Loose the " Battery Cover Screws " ( 3-15, Fig. I )
and take away the " Battery Cover " ( 3-17, Fig, L )
from the instrument and remove the battery.
3)Replace with DC 1.5 V battery ( UM3, AA,
Alkaline/heavy duty ) x 6 PCs, and relnstate the cover.
4)Make sure the battery cover is secured after changlng
the battery.
The ins,trument has RS232 PC serial lnterface vla a 3.5
mm termlnal ( 3-12, Flg. 1 ).
The data output ls a 16 diglt stream whlch can be
utillzed for user's speclflc application.
A RS232 lead wlth the followlng connection will be
requlred to link the instrument wlth the PC serlal port.
The 16 digits data stream wlll be displayed ln the
followlng format :
10. RS232 PC SERIAL INTERFACE
Center Pln........
(3.5 mm Jack plug)
Ground/shield... I
Pin 4
Pin
Pin
2.2K
reslstor
2l
Each dit indicates the followi status :
RS232 FORMAT: 9600 NB
1'l Preoare the optional " SOUND CAUBRATOR ". such as
-' i st-s+r " or'" sC-942 " ( set range to 94'0 dB )' Poyver
on inl sorna calibrator ti plug calibrator outp-ut socket
into ttt" " Microphone " head ( 3-9, FIg' 1 ) of the
Sound Level meter.
2)Select manual range to'50 - 100 dB "
:isetect " Time Weighting " at " Fast " position'
1
Start Word
D15 4
D14 send the uPPer disPlaY data = 1
send the lower dis data = 2
D13
D
for
atocl r
nun
B=17
D12, D11
1=N ative
Polarity
= Posltive
D10
tion from right to the
left
becimal Polnt(DP ), posi
0=NoDP 1= 1DP 2=2DP 3=3DP
D9
Dlsplay reading, D1 =
For examPle :
If the display reading is 1234, then DB to
LsD, D8 = MSD
D1 ls: 00001234
DB tO D1
End Word
DO
9600
Baud rate No
Pa I Data bits
Data bit no. bit
1
bit
11. CALTBRATION
20

4)Select"A"weighung.
simtust tne " callibration VR ' ( 3-11, Fig. 1 ) caretully
'with a " - " screw drlver until the display readlng value
withln " 94 +/- 0.2 " dB. I
.
I
I
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I
II
I
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ti
lr
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I
The meter ( SD card structure ) already
get patent or patent pending in following
countries :
* fest .nfur stgtal otl 1,000 Hz/94 d8.
14. PATENT
. I2. FREQUENCY WEIGHTIN
CHARACTERISTICS OFA&C
G
NETWORKS
Germany Nr. 20 2008 016 337.4
JAPAN 3151214
TAIWAN M 358970
M 359043
CHINA 2008 2 0189918.5
zL 2008 2 0189917.0
USA Patent pendinq
* 2.0 dB
-3 dB-39.4 dB
31.5 Hz -0.8 dB-26.2d8
63 Hz + 1.5
-0.2 dB
-16.1 dB
l25Hz * 1,4 dB
0dB
-8.6 dB
25O Hz * 1.4 dB
-3.2 dB
500 Hz + 1.1dB
0dB
0dB
1 KHz * 1.6 dB
-0.2 dB
+1.2 dB
2Kfiz * 1.6 dB
-0.8 dB
+1 dB
4 KHz +2.1 dB
-3.1 d8
-3 dB
I KHz
+3.0
-6.0
-6.2d8
-4.3 dB
12.5 KHz
-6.6 d8
16 KHz
+ 1.0 dB
- 1.0 dB
F( Fast )*1.
- 4.1 dB
S ( Slotv )
22
23 0911-SL40335D
* 1.5 dB
0dB
-1.1 dB
+3.5 dB.
-17.0 dB
-8.5 dB
13" TIME WEIGHTING (F/s)
rii:r,