Page 1
Sound
PSPL25
www.pyleaudio.com
Sound
Sound
SoundLevel
L evel
Level
LevelMeter
Contents
Contents
Contents
M eter
Meter
Meter
Contents
Title
Title
Title
TitlePage
I.
S afety
I.
I.
I.Safety
II.
II.
II.
II.General
III.
III.
III.
III.Specifications................
IV.
IV.
IV.
IV.
V.
V.
V.
V.
VI.
VI.
VI.
VI.Operating
VII.
VII.
VII.
VII.Measurement
I nformation..............................................1
Safety
Information..............................................1
SafetyInformation..............................................1
Information..............................................1
G eneral
General
GeneralDescription............................................1
S pecifications................
Specifications................
Specifications................…
N ame
Name
Name
NameAnd
M easurement
Measurement
Measurement
MeasurementPreparation
O perating
Operating
OperatingPrecautions.......................................
M easurement
Measurement
Measurement......................................................
D escription............................................1
Description............................................1
Description............................................1
…
. .........
…
…..........
A nd
F unctions..........................................
And
Functions..........................................
AndFunctions..........................................
Functions..........................................4
P reparation
Preparation
Preparation.................
P recautions.......................................
Precautions.......................................
Precautions.......................................7
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Page 2
.
.
.
.Safety
Ⅰ
Readthefollowingsafetyinformationcarefullybefore
attemptingtooperateorservicethemeter.
Usethemeteronlyasspecifiedinthismanual;otherwise,the
protectionprovidedbythemetermaybeimpaired.
�
�
�
�
1Altitudeupto2000meters
2Relativelyhumidity90%max.
3OperationAmbient0~40℃
�Maintenance
1Repairsorservicingnotcoveredinthismanualshould
2Periodicallywipethecasewithadrycloth.Donotuse
.
.
Ⅱ.
.General
ThankyouforusingourSoundLevelMeter.
youcangetthemostfromit,werecommendthatyouread
andfollowthemanualcarefullybeforeuse.
ThisSoundLevelMeterhasbeendesignedtomeetthe
measurementrequirementsofsafetyEngineers,Health,
Industrialsafetyofficesandsoundqualitycontrolinvarious
S afety
Safety
Safetyinformation
Environment
Environment
Environment
Environmentconditions
Maintenance
Maintenance
Maintenance&
onlybeperformedbyqualifiedpersonnel.
abrasivesorsolventsonthisinstruments.
General
General
GeneralDescription
i nformation
information
information
c onditions
conditions
conditions
&
C learing
&
Clearing
&Clearing
Clearing
D escription
Description
Description
To
ensurethat
environments.
�Rangesfrom30dBto130dBatfrequenciesbetween
31.5Hzand8KHz.
�Displaywith0.1dBstepsona4-digitsLCD.
�Withtwoequivalentweightedsoundpressurelevels,
andC.
.
S pecifications
.
Specifications
Ⅲ.
.Specifications
Specifications
Standardapplied:IEC651type2,ANSIS1.4type2
Frequencyrange:31.5Hz~8KHz
Measuringlevelrange:30~130dB
Frequencyweighting:A/C
Microphone:1/2inchelectretcondensermicrophone
Calibration:Electricalcalibrationwiththeinternal
oscillator(1kHzsinewave)
Display:LCD
Digitaldisplay:4digits
Resolution:0.1dB
DisplayUpdata:0.5sec.
Timeweighting:FAST(125mS),SLOW(1sec.)
Levelranges:Lo:30-100dB
Hi:60-130dB
Accuracy:+ 1.5dB(underreferenceconditions)
A
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Alarmfunction:“OVER”isshowwheninputisoutof
range
Maximumhold:HoldreadingstheMaximumValue,
withdecay<1dB/3minutes.
Autopoweroff:Meterautomaticallyshutsdownafter
approx.15minutesofinactivity.
Powersupply:One9Vbattery ,006PorIEC6F22or
NEDA1604.
Powerlife:About50hrs(alkalineBattery)
Operationtemperature:0to40℃(32to104oF)
Operationhumidity:10to90%RH
Storagetemperature:-10to60℃(14to140oF)
Storagehumidity:10to75%RH
Dimensions:210(L)X55(W)X32(H)mm
230g(includingbattery)
packing:9Vbattery,carryingcase,Instruction
manual..
Ⅳ.
.
.
.Name
N ame
Name
Nameand
a nd
F unctions
and
Functions
andFunctions
Functions
Page 4
Windscreen
Windscreen
1
Windscreen
Windscreen
Ifyouoperateatwindspeedover10m/sec,pleaseput
protectiveaccessoriesinfrontofthemicrophone.
Display
Display
2
Display
Display
S
F
dB
BAT
SYMBOL
SYMBOL
SYMBOL
SYMBOLFUNCTION
LCD4digits
MAXMaximumValuehold
OVEROverrange
FFastresponse
SSlowresponse
AA-Weighting
CC-Weighting
LoLowRange(30~100dB)
HiHighRange(60~130dB)
BATLow-Battery
F UNCTION
FUNCTION
FUNCTION
P ower
O N/OFF
Power
③Power
④Backlight
⑤A-weighting
C:C–Weighting.Forcheckingthelow-frequencycontent
(IftheC-Weightedlevelismuchhigherthanthe
A-Weightedlevel,thenthereisalargeamountof
low-frequencynoise)
⑥Time
⑦Level
When“OVER”isindicated,therangesswitchtoanother
⑧MAX/
Themax.Holdpositionisusedtomeasurethemaximum
levelofsounds.Themaximummeasuredlevelisupdated
continuously.Pressonceagainthebutton,willreleasethe
ON/OFF
PowerON/OFF
ON/OFFbutton
TurnthemeterpowerON/OFF
Backlight
Backlight
BacklightButton:
TurnthemeterbacklightON/OFF
A-weighting
A-weighting
A-weighting/
A:
A
–Weighting.Forgeneralsoundlevelmeasurements.
ofnoise.
Time
w eighting
Time
weighting
Timeweighting
weightingselect
F
F
F
F(fastresponse):fornormalmeasurements(fastvarying
S
S
S
S(slowresponse):forcheckingaveragelevelof
Level
r ange
Level
range
Levelrange
rangeselect
Lo
Lo
Lo
Lo:30~100dB;Hi
rangeformeasurement.
MAX/
H old
MAX/
Hold
MAX/Hold
Holdbutton
b utton
button
button
B utton:
Button:
Button:
/
C -weighting
/
C-weighting
/C-weighting
C-weightingselect
s elect
select
selectbutton
noise)
fluctuatingnoise
s elect
b utton
select
button
selectbutton
buttonLo/Hi
H i
Hi
Hi:60~130dB
b utton
button
buttonMAX/HOLD
s elect
select
selectbutton
b utton
button
buttonF/
M AX/HOLD
MAX/HOLD
MAX/HOLD
L o/Hi
Lo/Hi
Lo/Hi
b utton
button
buttonA/C
F /
S
F/
S
F/S
S
A /C
A/C
A/C
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holdandallowafurthermeasurement.
DataHoldbutton:PressandholdtheButtonforover2
secondtoturnonoroffdataholdfunction.
Theholdfunctionfreezesthereadinginthedisplay.
V.
M easurement
V.
Measurement
V.
V.
Measurement
MeasurementPreparation
(1)Batteryloading
Removethebatterycoveronthebackandputinone9V
Battery.
(2)BatteryReplacement
Whenthebatteryvoltagedropsbelowtheoperating
voltage,mark“BAT”appears.Ifitappears,battery
shouldbereplacedwithnewone.
VI.
O perating
VI.
Operating
VI.
VI.Operating
OperatingPrecautions
(1)Windblowingacrossthemicrophonewouldbring
additionalextraneousnoise.
Onceusingtheinstrumentinthepresenceofwind,itisa
musttomountthewindscreentonotpickupundesirable
signals.
(2)
To
achievemoreaccuratemeasurement,usean
extensioncabletoseparatetheMicrophonefromthe
mainbodysothattheeffectofunexpectedsound
reflectioncanbeeliminated.
(3)Calibratetheinstrumentbeforeoperationifthe
instrumentwasnotinuseforalongtimeoroperatedat
P reparation
Preparation
Preparation
P recautions
Precautions
Precautions
badenvironment.
(4)Donotstoreoroperatetheinstrumentathigh
temperatureandhighhumidityenvironment.
(5)Keepmicrophonedryandavoidseverevibration.
(6)Pleasetakethebatteryandkeeptheinstrumentinlow
humidityenvironment.Whennotinuse.
V II.
M easurement
VII.
Measurement
VII.
VII.Measurement
Measurement
(1)Openbatterycoverandinstalla9-voltbatteryinthe
batterycompartment.
(2)TurnonpowerandselectthedesiredresponseTimeand
weighting.Ifthesoundsourceconsistsofshortburstsor
onlycatchingsoundpeak,setresponseto
measureaveragesound,usetheslowsetting.
SelectA-weightingforgeneralnoisesoundleveland
C-weightingformeasuringsoundlevelofacoustic
material.
(3)SelectdesiredLevel
(4)Holdtheinstrumentcomfortablyinhandorfixontripod
andpointthemicrophoneatthesuspectednoisesource,
thesoundpressurelevelwillbedisplayed.
(5)WhenMAX(maximumhold)modeischosen.The
instrumentcapturesandholdsthemaximumnoiselevel
FAST.
To
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foralongperiodusinganyofthetimeweightingsand
ranges.
(6)WhenHOLD(datahold)modeischosen.Thehold
functionfreezesthereadinginthedisplay.Pressthe
HOLDbuttonmomentarilytoactivateortoexittheHOLD
function
(7)TurnOFFtheinstrumentandremoveandremove
batterywhennotinuse.
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