Reed Instruments R8050 User manual

Sound Level
Meter
Instruction
Manual
R8050
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

T a b le o f Co n te n ts
Introduction ................................................................................................2
ProductQuality...........................................................................................3
Safety .........................................................................................................3
Features......................................................................................................3
Included......................................................................................................3
Specications.............................................................................................4
InstrumentDescription ...............................................................................5
Display Description ....................................................................................6
MeasurementConsiderations ....................................................................6
Operating Instructions................................................................................7
MAX Ho ld .............................................................................................. 7
Da ta Ho ld............................................................................................... 7
Calibration Procedure.................................................................................8
Battery Replacement..................................................................................9
Accessories and ReplacementParts .........................................................9
Applications................................................................................................9
ProductCare ............................................................................................10
ProductWarranty .....................................................................................10
ProductDisposaland Recycling ..............................................................10
ProductSupport.......................................................................................11
In tr o d u c tio n
Thank you forpurchasing yourREED R8050 Sound LevelMeter.Please
read the following instructions carefully before using yourinstrument.By
following the steps outlined in this manualyourmeterwillprovide years of
reliable service.
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

3
Pr o d u c t Qu a lity
This producthas been manufactured in an ISO 9001 facility and has
been calibrated during the manufacturing process to meetstated product
specications.Ifa certicate ofcalibration is required please contactthe
nearestauthorized REED distributororauthorized Service Center.Please
note an additionalfee forthis service willapply.
Sa fe ty
Neverattemptto repairormodify yourinstrument.Dismantling your
product,otherthan forthe purpose ofreplacing batteries,may cause
damage thatwillnotbe covered underthe manufacturer's warranty.
Servicing should only be provided by an authorized service center.
F e a tu r e s
• High accuracy of±1.4dB meets Type 2 standards
• Dualrange measurement(High and Low)
• A & C frequency weighting
•Fast& Slow time weighting
• Easy-to-read backlitLCD display
• Data hold and Max hold functions
• Tripod mountforlong-term monitoring
• Low battery indicatorand auto shutoff
In c lu d e d
• Microphone Windshield Ball
• Battery
•Carrying Case
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

4
Sp e c ific a tio n s
Measuring Ranges: 30 to 130dB
Low:30 to 100dB
High:60 to 130dB
Dynamic Range: 70dB (In Each Range)
Accuracy: ±1.4dB
Resolution: 0.1dB
Response Time: 500mS
Frequency Range: 31.5Hz to 8kHz
Frequency Weighting: A,C
Time Weighting: Fast/Slow (125ms and 1s)
Microphone: 0.5" (12.7mm)ElectretCondenser
Display: 4-DigitLCD
BacklitDisplay: Yes
Data Hold: Yes
Max: Yes
Alarm Indicators: Over(VisualOn-Screen)
Auto Shut-off: Yes (After15 minutes)
Tripod Mountable: Yes
Low Battery Indicator: Yes
PowerSupply: 1 x 9V Battery
Battery Life: Approximately 50 hours
ProductCertications: CE,IEC 61672-1 Class 2,ANSIS1.4-1983
Operating Temperature: 32 to 104°F (0 to 40°C)
Storage Temperature: 14 to 140°F (-10 to 60°C)
Operating Humidity: 10 to 90%
Dimensions: 8.3 x 2.2 x 1.3" (210 x 55 x 32mm)
Weight: 8.1oz (230g)
REED Ins t r ume nt s
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5
In s tru me n t De s c rip tio n
1. Windscreen
2. Display
3. PowerButton
4. BacklightButton
5. Frequency Weighting Button
6. Time Weighting Button
7. LevelRange Button
8. MAX/HOLD Button
9. Microphone
10.Battery Cover
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

6
Dis p la y De s c rip tio n
1. MAX Value Indicator
2. Data Hold Indicator
3. FastWeighting Indicator
4. Slow Weighting Indicator
5. Hi/Lo Range Indicator
Me a s u r e me n t Co n s id e ra tio n s
• Directcontactwith strong winds orblowing airon the microphone may
cause measurementerrors.These effects can be reduced by using the
included windscreen.
• Calibrate the instrumentbefore operation ifthe instrumenthas notbeen
in use fora long period oftime orwas lastoperated under
extreme conditions.
• Do notstore oroperate the instrumentin high temperature and high
humidity environments.
• Keep microphone dry and avoid severe vibrations.
• When notin use,remove the battery and store the instrumentin a low
humidity environment.
14 23 6
5
7
8
dBA
dBC
OVER
MAX HOLD FAST SLOW Hi Lo BAT
9
6. Low Battery Indicator
7. Measured dB Value
8. Frequency Weighting Indicator
9. OverRange Indicator
REED Ins t r ume nt s
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7
Op e r a tin g In s tru c tio n s
1. Turn the meteron oroffby pressing the PowerButton.
2. Press the Time Weighting Button to selectthe desired Response
Time.Ifthe sound source consists ofshortbursts,setthe response
to FAST (125ms).To measure average sound level,selectSLOW (1s).
3. Press the Frequency Weighting Button to selectthe Frequency.
Select"A" Weighting fora generalnoise sound level,or"C"
Weighting formeasuring high levelnoise."C" Weighting is a standard
weighting ofthe audible frequencies commonly used forthe
measurementofPeak Sound Pressure Level.Ifthe "C" Weighted
levelis much higherthan the "A" Weighted level,then there willbe a
large amountoflow-frequency noise.
4. Press the Hi/Lo button to selectthe appropriate range.Ifthe noise
environmentundertestis between 30 to 100dB,use the 'Lo'range.If
the noise environmentundertestis between 65 and 130dB,use the
'Hi'range.Fora noise environmentundertestthatis between 65 and
100dB,eitherrange can be used.Ifthe display ashes the "OVER"
icon,press the range button to adjustthe range.
5. Hold the instrumentcomfortably in one hand (away from yourbody)
orposition iton a tripod forlong-term monitoring.Pointthe
microphone in the direction ofthe noise to take a measurement.
M AX Hold
Press the MAX/HOLD button to display the Maximum sound levelvalues
recorded during the measurementprocess.While in this mode,the meter
willonly refresh the reading when a highermeasurementthan the one
currently displayed is detected.Press the MAX/HOLD button again to exit
and resume normaloperation.
Dat a Hold
To freeze a displayed reading during the measurementprocess,press and
hold the MAX/HOLD button untilboth the MAX and HOLD icons appear
on the display.To resume normaloperation,press and hold the MAX/
HOLD button untilthe MAX and HOLD icons disappear.
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

8
Ca lib ra tio n Pr o c e d u re
To calibrate the REED R8050,an externalcalibratorthatcan provide a
94.0dB signalat1kHz (REED R8090)and a smallscrew-driverare
required.Follow the steps below to calibrate the instrument.
1. Open the battery compartment
and locate the two calibration
potentiometers behind the 9V
battery (see diagram).
2. Turn the meterON
3. Select'C'weighting mode
4. Select'FAST'response mode
5. Place the REED R8050 micro-
phone into the calibrator.Set
the calibratorto output94dB
6. Selectthe LOW range
7. Adjustthe 'C (Lo)'
potentiometerfora display
of94.0dB
8. Selectthe HIGH range
9. Adjustthe 'C (HI)'potentiometer
fora display of94.0dB
10. Setthe calibratorto output
114dB and verify measurement
OFF
94dB 114dB
(1KHz)
IEC 942 CLASS2
R8090
Soun d Lev el Cali br ato r
R8050
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

9
Ba tte r y Re p la c e me n t
When the "BAT" icon appears on the LCD,the battery should be replaced.
1. Remove the screw with a phillips screwdriverand open the
battery cover.
2. Replace the 9V battery.
3. Place the battery coverback and tighten the screw.
Ac c e s s o rie s a n d Re p la c e me n t Pa r ts
• REED-WB ReplacementWindshield Ball
• R8090 Sound LevelCalibrator
• R1500 Tripod
• CA-05A SoftCarrying Case
• R8888 Deluxe Hard Carrying Case
Don'tsee yourpartlisted here? Fora complete listofallaccessories and
replacementparts visityourproductpage on www.reedinstruments.com.
Ap p lic a tio n s
• Preventative Maintenance
• IndustrialMachinery/Equipment
• Construction Sites
• Ensuring Safe Working Conditions
• Public Venues /Concerts
• Code Enforcement
• Trafc
• Appliance Noise Testing
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

10
Pr o d u c t Ca r e
To keep yourinstrumentin good working orderwe recommend the following:
• Store yourproductin a clean,dry place.
• Change the battery as needed.
• Ifyourinstrumentisn'tbeing used fora period ofone month orlonger
please remove the battery.
• Clean yourproductand accessories with biodegradable cleaner.Do not
spray the cleanerdirectly on the instrument.Use on externalparts only.
Pr o d u c t Wa r ra n ty
REED Instruments guarantees this instrumentto be free ofdefects in
materialorworkmanship fora period ofone (1)yearfrom date ofshipment.
During the warranty period,REED Instruments willrepairorreplace,atno
charge,products orparts ofa productthatproves to be defective because
ofimpropermaterialorworkmanship,undernormaluse and maintenance.
REED Instruments totalliability is limited to repairorreplacementofthe
product.REED Instruments shallnotbe liable fordamages to goods,
property,orpersons due to improperuse orthrough attempts to utilize the
instrumentunderconditions which exceed the designed capabilities.In
orderto begin the warranty service process,please contactus by phone at
1-877-849-2127 orby [e-mail] to discuss the
claim and determine the appropriate steps to process the warranty.
Pr o d u c t Dis p o s a l a n d Re c y c lin g
Please follow locallaws and regulations when disposing orrecycling your
instrument.Yourproductcontains electronic components and mustbe
disposed ofseparately from standard waste products.
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

11
Pr o d u c t Su p p o rt
Ifyou have any questions on yourproduct,please contactyourauthorized
REED distributororREED Instruments CustomerService by phone at
1-877-849-2127 orby [e-mail].
Please visit www.RE E DIn s tr u me n ts .c o m for the most
up-to-date manuals, datasheets, product guides and softwar e.
Product specifications subject to change without notice.
All rights reser ved. Any unaut hor ized copying or reproduction of
this manual is strictly pr ohibited without pr ior wr itten per mission
fr om REED Instr uments.
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

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1-877-849-2127 |[e-mail] |www.reedinstruments.com