TENMARS. Sound Level Meter Datalogging. TM-l03

Transcription

1 Sund Level Meter Datalgging TM-l03

2 Tt\4-'10s a a O CONTENTS General Descriptin & Specificatins... 1 Name and Funtins... 3 Calibratin Prcedures...6 Measurement Preparatin... 7 Operating precautins...7 Measurement... 8 Setup User End...9 User End Manipulatin Menu...9 Thank yu fr using ur Sund Level Meter. T ensure that yu can get the mst frm it, we recmmend that yu read and fllw the manual carefully befre use. This unit cnfrms t the lec651 Type2, ANSI 51.4 Type2 fr Sund Level Meters. This Sund Level Meter has been designed t meet the measurement requirements f safety Engineers, Health, lndustrial safety ffices and quality cntrl in varius envirnments. Ranges frm 30dB t 130d8 at frequencies between 31.SHZand B KHZ. Display with 0.1d8 steps n a 4 digits LCD.. With tw equivalent weighted sund pressure levels, A and C. 1. GENERAL DESCRIPTION & SPECIFICATIONS 1.1. Display : 4 digits LCD with maximum/minimum, Reslutin : 0.1d8, Display Update : 0.5 sec Standard applied : lec651 Type2, ANS 1.4 Type Frequency range : 3'l.5Hz-8KHz Measuring level range : A Weighting d8. C Weighting d Frequency weighting : A,/C Micrphne : 1/2 inch Electret cndenser micrphne Time weighting : FAST(125mS),SLOW(1 sec) Level ranges : d8(Aut Range) Accuracy : t1.sdb. EN.1

3 Tt\,l Dynamic range : 50d MA)UMIN : Hld readings fr the Maximum and Minimum value DATA HOLD : The reading data shwn n LCD can be lcked while pressing the buttn RE:Accrding i the timing that is setup by user t save the data Lw Battery lndicatin: Replace battery as LCD display'e!" Pwer Supply : 9V NEDA 1604 ' IEC 6F22'JlS 006P batteryxl pcs Pwer Life : Abut 50 hrs (alkaline Battery) Operatin height : 2000M under the elevatin abve sea level Operatin temperature & Humidity : 5'C -40 C, belw 809,i RH " Strage Temperature & Humidity : -1 0.C -60'C, belw 70% RH Dimensin: 200mm(L)x55mm(W)x38mm(H) Weight: Abut (lncluding batteries) Accessries: lnstructin manual ' carrying case. 9V Battery, windscreen. TENMARS 2. NAME AND FUNTIONS I "' i,.[,:ifj**,*",.,,,! u.lil:il;l:l'''.n 1ffMh n3fflij'n",1,u"" ffi' -?i 7...^.,,,".,. 6. Maximum/Minimum 8. pwer butin. ffi &*@, L REC buttn 4e RS-232 lnterface r;@', IirzCnnectr 11. Micrphne 12. Battery Cver 2.1. Windscreen lf yu perate at wind speed ver 1Om/sec, please put prtective accessries-windscreen frnt f the micrphne. in EN-2 EN-3

4 TENMARS Tt\,l Di spl ay b ef HOLD [/rax i dba F:n MtN -r dbc F.ff.ff Fast Slw a. Lw battery indicatin b.data HOLD indicatin c.maximum indicatin d.minimum indicatin e.a-weighting f. C-Weighting g.slw respnse h. Fast respnse i. REC respnse i. Sund level read ut ihs HOLD buttn. The reading data shwn n LCD can be lcked while pressing the buttn. Frequency Weighting select buttn. A : A-Weighting. Fr general sund level measurements. C : C-Weighting. Fr checking the lw-frequency cntent f nise.(lf the C- Weighted level is much higher than the A- weighted level, then there is a large amunt f lw{requency nise) Time weighting select buttn. FAST : fr nrmal measurements. SLOW : fr checking average level f fluctuatin nise. MA)?MIN hld buttn r Press the key t activate the functin. The "MAX" symbl appears n the display and instrumenl measures and shw the Maximum EN-4 value f parameter which autmatically updates iiself when a larger value is measured. I Press the key again and the "MlN" symbl appears n the display and the instrument measures and displays the Minimum value f the parameter which autmatically updates itself when a lwer value ccurs. r The MA)(/MlN functin will be disable if: The MAXMIN is pressed fr mre than 1 secnd. Turn ff the meter Backlight buttn. Press the buttn yu enable the display backlight t easy readings in dark envirnments. Press mre than 1 secnd t disable backlight, which hwever it autmatically OFF after 15 secnds Pwer buttn. The key fr 'l sec t turn the sund level meter ON r OFF. The aut pwer will be ff autmatically after 5 minutes idle time 2-9. REC buttn Press the buttn t start recrding data and press REC again t stp recrding. THE MINIMAL INTERVAL IS 1 SECOND AND MAXIMUM INTERVAL TIME IS 7 HOURS 59 MINUTES AND 59 SECONDS RS-232 lnterface Cnnectr RS-232 interface with a persnal Micrphne 1/2 inch Electret Cndenser micrphne Battery cver EN-5

5 TENMAR5 TENMARS TM CALIBRATION PROCEDURES 3.1. Using a standard Acustic Calibratr (94d8, l KHz Sine wave) t-il fl T i ffi- Acustic calibratr 3.5. When LCD blinked, release the A,/C and the HOLD buttns. The sund level meter will display 94.0 dba. The calibratin is dne The 94 db calibratin prcess can be repeated until the meter reads 94.0 db. Recalibratin cycle : 1 year. 4. MEASUREMENTPREPARATION 4.1. Battery Lading Remve the battery cver n the back and put in ne 9V Battery Battery Replacemeni When the battery vltage drps belw the perating vltage, the mark Ffi appears. lf it appears, battery shuld be replaced with new ne Sund level meter Make the buttn settings. Display : dba Time weighting : FAST lnsert the Micrphne nzzle carefully int the insedin hle f the calibratr. Press A,/C buttn then press the HOLD buttn, hld the 2 buttns at the same time mre than 1 secnd. LCD will be blinking t cnfirm calibratin. EN-6 5. OPERATING PRECAUTIONS 5.1. Wind blwing acrss the micrphne wuld bring additinal extraneus nise. Once using the instrument in the presence f wind, it is necessary t munt the windscreen preventing t pick up undesirable signals T achieve mre accurate measurement, use an extensin cable t separate the Micrphne frm the main bdy s that the effect f unexpected sund reflectin can be eliminated Calibrate the instrument befre peratin if the instrument was nt in use fr a lng time r peratin at bad envirnment D nt stre r perate the instrument at high temperature and high humidity envirnment Keep micrphne dry and avid severe vibratin. EN-7

6 TENMAR.S T NI*IAR'S Tt\, Please take ut the battery and keep the instrument in lw humidity envirnment. When it is nt in use. 6. MEASUREMENT 6.1. Open battery cver and install a g Vlt battery in battery cmpadment Turn n pwer and select the desired respnse time and weighting. lf the sund surce cnsists f shrt bursts r nly catching sund peak, set respnse t FAST. T measure average sund level, use the slw setting. Select A weighting fr general nise sund level and C weighting fr measuring sund level f acustic material Hld the instrument cmfdably in hand r fix n tripd and pint the micrphne at the suspected nise surce, the sund pressure level will be displayed When MA)V MIN (maximum, minimum hld) mde is chsen. The instrument captures and hlds the maximum r minimum nise level. Press nce t select MAX value. Press again t select MIN value, Press again t exit the MAX/MIN mde. "MAX" r " MlN" symbt disappears. 6,5. Turn ff the instrument and remve the battery when it is nt in use. 7. SETUP USER END System Required r Windws 2000, Windws XP Minimum Hardware Required I Pentium lll 500MHZ PC cmpatible, r abve 12BMB RAM; At least 1OMB hard disk space available t install User End prgram. Recmmended display reslutin is 800X600 r abve 8. USER END MANIPULATION MENU r--;;fi;*".--*--"-*l i i ;::",:.:: : i,'-"'"i -'- -r-.,-,,- *,* ' +! 1'-..-".-- "'"'q 2 ) 7.1. The User End package cntains I Custm designed RS-232 cable fr User End EN-8

7 TM-103 TENI'IARS TN/ Tl Bar Tl bar sectin has 6 buttns: [Cnneci T Meter] fdwnlad All Recrds] [Erase All Recrds] lupdate Meter Date/Time] [Save Recrds t File] [Print] Use buttn [Cnnect t meter] t cnnect meter and PC. This step is the first step t use this sftware. Use buttn [Dwnlad All Recrds] t dwnlad recrds frm Meter t Lcal cmputer. Use buttn [Erase All Recrds] t erase all the recrds saved in memry. Use buttn [Update Meter Date/Time] t let the time in meter t be same with the cmputer time. Remember if the battery is taken ut, the clck in the meter will stp. Please d time re-setup and lad it int the meter after replacement r remved f battery. Use buttn [Save Recrds t File] t exprt the recrds frm the list bx t txt file. This buttn will be enabled after dwnlading recrds. Use buttn [Print] t print all the dwnladed data. EN Sund Meter Real Data Real time data sectin is used t displayed real time data including db value, dbfudbc status, Fasvslw status, HOLD, REC, MN0MIN status. Current meter situatin including ttal grup and ttal recrds in the memry, interval, meter date and time, are als displayed at the left side Grup infrmatin Data Grup infrmatin daia sectin is used i display selected grup infrmatin including start time, end time, dba/dbc status, recrds number in selected grup' 8.4. Status Message Status message is t display current mete status such as recrding, cnnected, discnnected, 8.5. Sund Meter Setting Data This sectin is used t set interval int meter Recrds Data Data will be dwnladed int this sectin after [dwnlad recrds] buttn is pressed 8.7. Cnnected Signal The light is used indicated cnnectin status. Green means cnnected, red means discnnected. Prcedure t install USER END SOFTWARE 1. Place ihe setup disc int the CD-ROM. 2. Duble click "setup.exe" in the CD-ROM. 3. After finishing setup prcess, g t stad--all I prgramldata Lgger\sund meter "t run the I Prgram. v/ EN-11 S'.rnd lqvu rnttr vt"0