Noise dosimeter
Contents
1. DS200 dosimeter calculates noise exposure and displays on its screen the number of exposure points of the task performed by the worker on his workstation 3 Vocabulary LAF40 A weighted acoustic pressure level Fast time constant range 40 120 LAS40 A weighted acoustic pressure level Slow time constant range 40 120 LAF60 A weighted acoustic pressure level Fast time constant range 60 140 LAS60 A weighted acoustic pressure level Slow time constant range 60 140 LCpK C weighted peak pressure level referring to 20uPa LZpK Z Lin weighted peak pressure level referring to 20uPa Raz resetting of maximum or minimum values calculations memorized of measured values Sto data saving and storage on MicroSD DI Elementary integration time programmable from 1s to 60s for calculation of the equivalent continuous stored into the memory LAeq DI A weighted equivalent continuous level on the integration time DI LCeq Dl C weighted equivalent continuous level on the integration time DI LAeq T A weighted equivalent continuous level on the whole measurement duration T LCeq T C weighted equivalent continuous level on the whole measurement duration T Lex d A weighted daily exposure level EA T nose exposure on the measurement duration T expressed in Pa h EA d nose exposure on the normalized duration 8 hours expressed in Pa h Dose dose of noise expressed in Reference 85 dBA for 8 hours Lc reference level for the2. 8 4 1 Accept data and store them gt Press once 3 key Sto A banner displays the storage phase 8 4 2 Reject measurements and erase them gt Press twice 1 key Raz A banner displays the data suppression phase 501 501 Storage phase Suppression phase 17 8 5 Data reading Contr Retro Every measurement is stored in a micro SD under file format named sessions Ex S01 S02 Pi le It is possible to read the measurement results before transfer them in a computer PC From starting screen Configuration Autonomie gt Press 5 key gen gt Move the cursor until Read item with 1 or 2 key A propos gt Press 3 key to validate The setting screen of the last measurement session is displayed Ea ud ES To check the others sessions scroll through the session with 1 or 2 key until the required session number appears When the required session number appears gt Press 1 key 4 screens characterizes the session gt Press 3 key to scroll through the screens e E1 setting screen e 2 results screen based on the measurement duration LCpk max on the T duration measurement LAeq T LCeq on the T duration measurement EA sound exposure noise dose measurement duration e 3 results screen based on the standardized duration of 08h00 LCpk max on the T duration measurement Lex d daily exposure level EA sound exposure noise dose exposure point Press 4 key to back the setting screen Dd 15 05 2
3. e Type universal main adapter e Output plug format USB e nput 100 240 VAC 50 60 Hz e Output 5V DC 1000 mA 5 VA max 12 4 Dimensions 58 mm 32 mm 117 mm 24 13 Delivery and packaging e DS200 housing with a microphone and an extension of 1m e Carrying case with protective foam e Adapter ring for acoustic calibrator e Fixing kit for microphone e Protective cover to wear on belt e Charger e Calibration certificate e CD ROM with LDS23 software and user manual 13 1 Optional and accessories Charger and transfer station for 1 or 5 instrument D S1 D S5 Carrying case for 5 instruments D V5 Direct microphone D MB Charger and transfer station for 5 instrument D S5 Acoustic calibrator 94 dB 1000 Hz CAL200 Processing software LDS300 29 EXPORT DEPARTMENT Boulevard de Beaubourg Emerainville BP 48 77312 MARNE LA VALLEE CEDEX 2 Tel 33 1 60 06 69 25 Fax 33 1 60 06 69 29 ISO 9001 Qualit AFNOR CERTIFICATION Ref NTang DS200 16 11 11 RCS 24 Perigueux 349 282 095 Non contractual document We reserve the right to modify the characteristics of our products without prior notice
4. a temporal management of the instrument which is as follows e programming is validated 19 Important it is possible at any time to stop sleep or waiting mode to launch the measurement In waiting mode press 2 key gt gt gt waiting mode is displayed This screen is displayed a few moment then turns off It reactivates itself a few moment before the measurement measurement is performed data are recorded The instrument moves to sleep mode until next measurement and so Oh The measurement starts immediately In sleep mode between 2 measurements press 6 key On Off The waiting screen is displayed Press 2 key to start the measurement In all cases only measurement launching is modified end programming and daily repetitive programming are the same as the ones initially 8 2 During measurement The individual exposimeter is an instrument carried out by a person exposed to noise nuisance Usually the reading of the results is made at the end of the measurement In case of control during the measurement partial results are available From starting screen gt Press 3 key to scroll through the three screns e 1 general measurement screen LCpK max LAeq LCeq on the DI logging time LAeq T LCeq on T measurement duration e 2 results screen LCpk max on T measurement duration LAeq T LCeq on T measurement duration EA sound exposure on the measurement duration gt Press 4 key to back to gen
5. calculation of the dose 85 dB Tc reference duration for the calculation of Lex d and dose 8 hours P exp exposure points 1 exposure point 0 01 Pa h L135 L137 L140 symbols for the detection of peak pressure levels of 135 137 104 dB SXX order number of the measurement sessions Limited to 99 EY order number of screens from 1 to 4 Dd start date of the measurement Form 00 00 00 Hd start hour of the measurement Form 00 00 Df End date of the measurement Form 00 00 00 Hf end hour of the measurement Form 00 00 V measurement channel 1 or 2 optional A C simultaneous measurement according 2 frequency weightings A and C 00 00 00 00 measurement duration form in day hours minutes seconds 00 00 time form in hours minute 00 00 0000 date form DD MM YYYY Alarm two coloured visual alarm fir detection Ref reference level for calibration Cr Cl correction term in free field in calibration mode 4 Operation principle 4 1 Keypad presentation When starting the instrument the screen specifies 3 operating modes These modes are available from 1 2 and 3 keys 5 key allows to go to setting reading or data transfer screens To back to start screen press 4 key During measurement 4 key also allows to quit operating screen 1 2 8 Function keys Directly associated to texts shown above on LCD screen they allow measurement settings and modes selection 4 Ke
6. connection The instrument is considered by the operating system as a removable disk So there are 2 methods to transfer file e with the LDS23 software see software user manual e with the copy paste or send to functions of the computer File format files have a specific appellation YYYYUUUU_SXX_1203 exp with e YYYYUUUU serial number of the instrument e XX order number from 1 to 99 e 103 day and month e exp file extension gt Press 4 key twice to quit Transfer screen 8 7 Delete files After saving measurement dataset and transferring them to a computer it is possible to erase the memory of the exposimeter There are two possibilities e with the LDS23 software see software user manual e with the instrument With the instrument gt Goto PC screen gt Press 1 key RAZ RAZ is blinking gt Press 1 key RAZ to confirm the deletion A progress bar is displayed gt Quit the screen pressing 4 key AN the measurement dataset will be deleted 9 Operating informations 9 1 Instantaneous overloads Percentage e Instantaneous overload in condition of overload of input stages a pictogram appears It is displayed fleetingly during measurement and remains displayed during the reading of results e Percentage this information can be necessary for a measurement in the medium and long term when the overload indicator is displayed Its presence does not provide information about
7. continuous level of A A and C weighted sound pressure for each duration of logging time LAeg DI and LCeg DI LAeq T dB e the equivalent continuous level of A A and C weighted sound pressure on the current joie ien measurement duration LAeq T and LCeq T e the maximum peak level of sound pressure on each duration of logging time LCpK e the duration measurement in DD HH MM SS ERN ll The measurement parameters will be set in advance in Prog measurement menu It means e to set the duration of logging time of the equivalent continuous level e to select the C or Z weighting of the sound peak pressure level e of the measurement of the A weighted equivalent continuous level only or simultaneously with both A and C weightings e ofthe activation or not of the visual alarms 2 selections of dynamic ranges are possible e 60 140 dBA for the measurement of sound atmospheres in a noisy industrial environment e 40 120 dBA for the measurement of sound atmospheres in services sector or low noisy industrial environment gt Select the dynamic range pressing 1 key according the following coding e 40 pictogram 40 120 dB dynamic range e 60 pictogram 60 140 dynamic range Note in order to check the proper functioning of the measurement chain before launching a measurement the screen systematically displays results each second After the launching these results will be displayed at the rate of the log
8. 009 LCpk 126 7 dB LCpk 126 7 dB Hd 08 15 LAeq T 082 3 dB 0 Df 15 05 2009 LCeq T 088 7 dB Lexd 95 3dB Hf 18 30 EAT 0 51Pa h EA d 0 51Pa h L140 0 DI 1s Dose 50 Dose 54 l M a Pexp 51 L137 0 AIIC 00 07 30 00 00 08 00 00 L135 2 Very important results of the E3 screen are about the daily exposure level brought to a standardized daily exposure of 8 hours from results of a T duration measurement This T duration must be representative of the Te effective duration of the workstation In this assumption if and only if the sound exposure values and noise dose of E3 screen are the same of the values of the E2 screen Exposure point this number is equivalent to the hundredth of sound exposure and is used in the simplified way of the INRS in its document ED6035 available on the INRS web site 8 6 Transfer files This function allows to transfer data to a computer with the USB cable The LDS23 software must be installed on the computer gt Turn on the instrument and link it to the computer with the USB cable gt Move the cursor to PC from starting screen with 1 or 2 key gt Validate with 3 key PC screen is displayed gt Press 3 key to activate the USB connection The cross on the screen disappears Important when the instrument is turned off and connected to the PC the USB connection is automatically activated screen PC is displayed then a few second later the cross disappears to confirm the USB
9. During a free field measurement phenomenons of diffraction caused by the microphone and the housing come to disrupt the measurement This disruption is minimized if the microphone is far from the housing For the DS200 the induced disruption in free field is very weak it is not necessary to introduce a free field correction 6 7 Perform the calibration From the starting screen Calibration Press Cal Ref EINE The instrument displays a new screen Cr CI 0 0 gt Check that the reference value and the free field Cr Cl correction value correspond to the calibrator used 0 0 dB for DS200 0 gt Turn on the calibrator and put it on the microphone 01 04 2011 Putthe cursor on V1 p su The instrument automatically adjusts the gain of the channel to obtain the coincidence of the levels Ed El i displayed in Ref and V1 When the measurement is stabilized a pictogram OK appears gt Press 3 key to validate At this moment the correction value of the gain and calibration date are memorized and visible for the next calibration gt Quit calibration function pressing 4 key Note This correction can not exceed 2 dB If the correction exceeds 2 dB the coincidence values in Ref and LCF is not obtained Reasons of this difference shall be identified defective microphone level value of the calibrator not adapted 6 2 Modify the reference value The preset reference value during manufacturing process shows tha
10. Extension electret microphone of diameter 3 8 9 52 mm small size allowing a reliable fixing e 2 dynamic ranges 40 120 60 140 dB e Aand C frequency weighted simultaneous measurement for Leg and C or Z for LpK e Management of peak pressure levels excesses 135 137 140dB e Calculation and results complying with EN ISO 9612 2009 standard e Measurement programming for deferred and or repetitive starts e Keyboard protection during measurement and against unwanted stops e Visual alarms e Storage capacity on microSD 99 sessions of more 24H00 each e Li lon battery for a battery life more than to 30 hours DS200 is supplied with LDS23 software which can very easily transfer data to computer for e Visualize global or more detailed measurement data e Process unmeasurement areas pause start end of measurement e Customize a report for saving and printing 2 Generality 2 1 Regulation The prescriptions regarding the exposure of workers to the risks are mentioned in the 2003 10 EC European Directive From these controls the obtained results are compared to defined regulatory action thresholds These thresholds are based on two parameters e the daily noise exposure level Lex 8h in dBA e the C frequency weighted LCpeak peak pressure level In case of threshold excesses actions have to be done The regulation specifies two action thresholds that lead to preventive actions e lower exposure value Lex 8h gt 80 dBa and LCpk g
11. KIMO INSTRUMENTS Pressure Temperature Humidity Air velocity Airflow Sound level DS200 Noise dosimeter Table of contents 1 AL ele 6 116 9 A EUER 6 PAM E E NS AV E UU LT 7 nn A T 2 2 A mE T VASE MA re ee eee re ee ee eee eee T 2 4 Noise exposure EXBOSUFE DOM Sarita een 1 e A A iS D MM nis ene ee ey Te er eee MEI rere re creer ere cree 8 A ODETAUON PCI Eivissa ciao 9 A Ax KEY DAG presenta variada 9 4 2 SCIEENS PFESENIAl ON nee 9 A Bee ee 10 BA AMES DacklIYNL an ee a lee 10 92 Measurement Programming sa abe ue n Nes AR dpa Meo diues enun uc ENR 10 A O 11 Ea U II O ooo A A 11 SES COMMON AMO rr O 11 OA UNO mE 11 A ee sehr 11 9 9 ADO Usain od 11 o6 Gallbrate ne VS UI VS IL cect serait A ee do 12 Gla Peno mine cala ON asien 12 6 2 Modify the reference Valle unn seele 12 7 Conventional sound level Meter oocccocnccccnccocnccccnccncnocncnnnnnnonnnnnnnnnonnnnnnnnnnannnnrnnnannonnnrnnaninanens 13 7 1 Set the instrument before the measureMent ooccccoccccocnccocnccocnncnnnonnnnnnannnnnnnonanonconanennnnaninannns 13 1 2 Reno ima measured 13 8 Noise dosimeter integrator AVeragGel ccccccccscccseeceeeceueceseecueecueecaueecueeceeesaeeseueseaesuesueseesesaeeseeeas 14 Sl Launch the Measurement AAA 14 OL 1g LL OL LC MOUSE ee ee ee nee en nee ee 14 8 12 Delayed MONO aus a essen 14 8 1 3 Repelliive delayed MOE leere 15 8 1 4 Delayed Measurement WaAlt ccccccce
12. OME ee een ee 25 1 Introduction The DS200 noise dosimeter is measuring instrument allowing measurement of sound exposure at workstation In accordance with international standards DS200 calculates values usually used for comparison with regulations on exposure value With its memory DS 200 instrument stores measurement dataset Then they are transferred on a computer and processed through LDS23 software supplied with the instrument The optional LDS300 software will allow a more detailed analysis in accordance with EN 1509612 2009 standard In addition this noise dosimeter contains a conventional sound level meter function for a first estimation of the noise environment of workplace DS200 comes in a small case with ergonomic design It can be easily put on a belt or in a pocket of people at workstation The microphone at the end of the extension is attached thanks to the kit specially developed to minimize the disruptions caused by impact or clothes frictions Measurements are stored in a MicroSD memory of large capacity giving to the whole a measurement capacity almost unlimited With its backlighted LCD screen DS200 is also a conventional and integrating averaging sound level meter fora a quick estimate of the noise in the workplace In measurement mode it can inform person about the levels through a two coloured light Main features Noise dosimeter and conventional sound level meter with backlighted LCD graphical display e
13. ecceeeeeecece cece eeceeesaeeeseeeeeueseeeeseeseeeseeessueeeegeeseeaaes 15 8 2 During measlrement a um IR 16 8 3 Stop the measurement and the instrumernt 0222022200220020000nn0 nenn onne nun nen snn nennen nnennennenn 17 o A 17 8 4 1 ACCept data a a Store MenM nuit a 17 8 4 2 Reject measurements and erase themM c occccccncccncncnccccncoconncncnnncnnnnnnnnnononnoncnnnonannannnnnnnnns 17 Qo Dala Oe ACMI isa 18 A Transiter ICs een PR o DA 18 Ol BA WS CA TE 19 9 Operating INTOMMNATLIONS vuscoontcinedolamcalonleda tiroteo 19 9 1 Instantaneous overloads Percentage ccccccccscecseeceeceecceeeeceeecauecaueeceeceeesesaeeceesensensaes 19 E A ee ee foU NUN E Pd 19 9 9 OWVertange measurement a none 19 9 4 Detection and counting of peak pressure levels 135 137 140 dB 20 De ATS an o o CO eine een 20 LO Mate ANC ee een 21 A EP AR CERLERHERRSTERRTEEEN 21 19 2 Regular CHECKIN O un RN E N O 21 10 3 t040 Pe Date rn 21 11 Preparing Tor measurement seen e 22 1121 Prepanngdtne insirumenl rin eu 22 11 2 WeanngstneiNnstrument rense e d noH ee ea 22 Mla oil DIO CIN MICFOPNONE arser 22 LA USNI Me WIGS Che CI assensu die a CA MESS UD M EDS 23 AE Te a ee Te a Ue Sc ee T Ada ee nee 24 eZ late LANG A TE 24 1242 MOTO si Dein 24 12 9 Charger TOF Dale ri id dicos 24 e A A ee re 24 QS MB GLY ANG DA CK AGING Me T 25 13 1 Optional and acces S
14. eral measurement screen e E3 screen of overload detection and peak level values 135 dB 137 dB and 140 dB e 4 screen of measurement setting LCpk 128 7dB LAeq Di 095 3dB LCeq Di 098 7dB LAeq T 091 3dB LCeq T 096 5dB 00 00 00 46 LE GI LCpk 126 7dB LAeq T 082 3 dB LCeq T 088 7 dB EA T 0 51Pa h Dose 51 00 07 30 00 A 0 L140 0 L137 0 L133 2 Dd 15 05 2009 Hd 08 15 Df 15 05 2009 Hf 18 30 DI 1s Vc 4 AIIC Audio non 8 3 Stop the measurement and the instrument If the measurement is manually launched a manually stop shall be performed from the general measurement screen gt Press 2 key The screen of Authorization number is displayed to confirm the measurement stop Move the cursor on the figures number 0000 in the middle of the screen select the figures with 2 and 3 key Move the cursor on STOP arrow after the last figure The measurement stops and the screen allowing to erase or store the session appears V NON The authorization number is 0082 N autorisation N autorisation N autorisation 501 0000 008N 0082 STOP gt STOP STOP 55 oe ceo ij E To turn off the instrument press a few second the 6 key until the screen shutdown Note a fast press on this key turn on or off the backlight 8 4 Data processing At the end of the measurement it is possible to e Store data and create a session e Reject the measurement and erase data
15. ging time 8 1 Launch the measurement The DS200 proposes three possibilities to launch the measurement e immediate mode e delayed mode e repetitive delayed mode 8 1 1 Immediate mode gt Press 2 key Measurement starts immediately results are displayed at the rate of integration duration 8 1 2 Delayed mode It is possible to set start and end of measurement date time in case of absence For example preparation of the instrument the day before the study of night work gt Press 3 key Programming screen is displayed gt Move the cursor with 1 key arrow Change the different item with 2 and 3 keys Db date of measurement beginning Hb time of measurement beginning De date of measurement end e He time of measurement end gt Keep the item Repet at 01 gt Move the cursor until Val pictogram appears gt Press 3 key linked to this pictogram Programming of measurement launching is performed The last two lines specifies e that memory capacity is sufficient OK e that battery capacity allows the measurement OK In case of incompatibility KO is displayed for OK In this case e Erase memory of the instrument e Load the battery Important note by using the delayed mode without programming beginning date and time current date and time always present but by programming end date and time measurement launches immediately when it is validated and will stop at the programmed time This p
16. he maximum peak pressure level reached during the measurement and the maximum peak pressure level reached for each duration of elementary integration usually 1 s Counting only for 60 140 dB measuring range For 40 120 dB range counters display 0 The higher value being 123 5 dB peak It is limited to the number of elementary periods whom maximum peak pressure level exceeded reference values 135 137 140 dBC Z This principle has the advantage to consider all the values related to the sampling rate 23 000 s possible and simplifies the results reading and keeps the preventive and regulatory nature of this A 0 control The example on the right shows that during measurement the dosimeter had recorded in e 2 elementary periods whose maximum peak pressure level has exceeded 140 dB ln e 4 elementary periods whose maximum peak pressure level has exceeded 137 dB L135 9 e 9 elementary periods whose maximum peak pressure level has exceeded 135 dB So these results show that during 9 DI elementary periods the maximum peak pressure level has exceeded 135 dB included 4 for 137 dB and 2 for 140 dB 9 5 Alarms Analysis criteria of the exposure level are based on the comparisons of obtained results with those defining the lower exposure value the higher exposure value and the the value of exposure limit These values are regulatory requirements The instrument considers these values mainly for e the calculation of results to display e wa
17. hesitate to move away the microphone from clothes thanks to its flexible neck 11 3 Fixing the microphone The microphone is a sensitive element it must be positioned according to NF EN ISO 9612 may 2009 standard recommendation The microphone must be mounted at about 0 04 m above the shoulder and at 0 10 m of the canal entrance of the most exposed ear The cable must be slipped inside the cloth or firmly maintained with an adhesive tape in order to avoid any frictions that could disrupt measurement The microphone can be fixed with two different ways e with the mechanical module This module is composed by an attachment clamp with circular base to maintain on the cloth or other accessory worn by the person helmet scrubs and a fork plug of 4 cm length to clip the microphone Recommendations pinch the cable through the cable guide It minimizes the movement of the cable around the microphone e With the magnetic module which contains an imitation skin plate in which is put a magnet and a fork plug of 4 cm length to clip the microphone integrating in its base a magnet The plate is put under the cloth at the level of the shoulder or any other part of the cloth The fork plug becomes fixed by magnetic attraction straight of the plate over the cloth A 22 This is a magnetic fixing plate do not use it on people with pacemaker or equivalent 11 4 Using the windscreen The windscreen is necessary t
18. housing visible by the exposimeter holder or the technician in charge of the measurement following Select Yes to make visible the following informations e Orange in case of exceeding at least one of the following values Lpk gt 135 dBC or Z LAegDi or LAeq T gt 80 dBA Dose gt 31 62 e Red in case of exceeding at least one of the following values Lpk gt 13 7dBC or Z LAegDi or LAeq T gt 85 dBA Dose gt 100 10 5 3 Reading Dd 15 05 2009 This screen allows to get to the main results of the different measurement sessions stored in the Hd 08 15 instrument Df 15 05 2009 Hf 18 30 gt Scroll with 2 or 3 keys the sessions numbers to get the required session DI 1s The screen gives informations about date and time of measurement starting and end and about V 1 the measurement setting AIG gt Press 1 key to read the totality of other results of the selected session ETE Scroll with 3 key the different screens in relation with the session gt Leave the session pressing 4 key 5 4 PC From this screen gt Press 1 key to empty the memory of the instrument gt Press 1 key again to validate or 4 key to cancel This screen also allows to connect the instrument to a computer See page 18 Raz 5 5 Configuration From this screen Lang Anglais gt Use 1 key to move the cursor in the requested area ve gt Modify the suggestion with 2 and 3 keys 02 07 2010 The parameter
19. ight situated at the top of the instrument informs as follows e Red light load in progress Light of battery charging e Green light completed charge e Orange light the instrument stayed on during loading Turn off the instrument or there is a power supply problem return the device and its accessories to the manufacturer 21 11 Preparing for measurement To perform a good measurement several parameters are to be considered and mainly the methodology that is deduced from the general situation After having selected the appropriate method it is necessary to take a few measurement precautions to get correct and significant results Consider at least the following items 11 1 Preparing the instrument gt Check the operating autonomy memory audio recording capacity and battery Erase the memory and load the battery if necessary gt Set the delayed or repetitive delayed start according to the selected method gt Set the measurement parameters by keypad gt Put the microphone and its extension on the channel 1 Important the D MB microphone must be connected on channel 1 for a hand sound level meter use 11 2 Wearing the instrument According to the observed station and to the material conditions the instrument can be worn e on the person belt use the protection cover supplied with the instrument e onthe upper pocket of the protection cloth scrubs clip the instrument in the pocket Do not
20. ns that backlight is activated dBA When backlight is activated battery life is reduced by 15 c Non Note a short press of On Off key activates or deactivates backlight at any time In exposimeter integrating mode backlight will be automatically deactivated after some time to save battery life 9 2 Measurement programming To be performed before starting a measurement Parameters must be set according to measurement um conditions and adopted measurement strategy Lpk C Press 1 key to move the cursor DI 1s Change the suggestion in reverse video pressing 2 or 3 key mim a V concerns the number of measurement channels Here only 1 channel Lpk select C or Z for the peak pressure weighting Usually C weighting is preferred Di select the duration of elementary integration of the equivalent continuous level for a proper EN representation of the time evolution This duration varies between 1 and 60 s with a 1 s step Usually the duration of 1 s is preferred AIIC 2 possibilities are proposed the measurement of the Leq equivalent continuous level with the A frequency weighting Select the item A the measurement of the Leq with A and C weightings simultaneously Select the item A C This last setting allows to estimate the sound exposure in case of use of individual noise protection according to the HLM method and ISO 4969 2 standard Alarm concerns the activation of the lighting on the top of the
21. o minimize the air current effects It comes on the the microphone with its anti slide safety clip In case of wear only the foam part can be replaced e To remove the windscreen take it between the thumb and the forefinger and pull hard e Incase of calibration remove the windscreen 23 12 Technical features 12 1 Standards The instrument meets the following standards e NF EN 61252 2002 IEC CEI 61252 2002 IEC CEI 61672 2003 IEC CEI 61260 1995 A1 2001 e NF EN 61000 6 1 NF EN 61000 6 2 NF EN 61000 6 3 NF EN 61000 6 4 2001 12 2 Metrology Features Leq and Lp channels Peak channel Accuracy Class 2 Class 2 Dynamic range 40 120 dB 60 140 dB 73 123 dB 93 143 dB Frequency weightings AandC CorZ Values LAF LAS max min LAeq LCeq Lex LCpk LZpk d EAT DOSE simultaneous measurement mode LAeg and LCeq LCpk or LZpk Duration of LXeq integration From 1s to 60 s step of 1s Noise pressure sampling 23 4 kHz 24 kHz Detection and peaks counting 135 dB 137 dB 140 dB storage capacity 99 periods of 24 hours Microphone Type electret diameter 9 52 mm 3 8 10 mV Pa Power supply Battery life Internal Li ion battery rechargeable Battery life gt 30 hours and according to configuration Environmental conditions From 10 C to 50 C from 650 hPa to 1080 hPa from 0 to 95 HR Storage temperature From 0 to 50 C 12 3 Charger for battery
22. rning during measurement the person wearing the instrument or the technician in charge of the measurement following In this last case a two couloured light in the higher part of the housing can be activated see page 10 for each measurement channel V1 or V1 and V2 Orange color in case of at least one of the following values exceeding e Lpk gt 135dBCorZ e LAeq DI or LAeg T gt 80 dBA e Dose gt 31 62 Red color in case of at least one of the following values exceeding e Lpk gt 137dBCorZ e LAeq DI or LAeg T gt 85 dBA e Dose gt 100 20 10 Maintenance 10 1 Care The dosimeter conception allows a reduced maintenance which consists in changing batteries and cleaning the instrument with a slightly cloth A particular attention must be paid to the microphone sensor which is the element the most sensitive of the metrological chain 10 2 Regular checking Like most measuring instruments it is strongly recommended to regularly control and calibrate DS300 instrument Return to the manufacturer each year will provide necessary metrological traceability 10 3 Load the battery gt Use a USB power adaptor which serves as a charger and ensure that the instrument 4 is turned off It is also possible to connect the instrument to a USB connection of an operating computer The battery will load according to the available power at the USB output about 500 mA A 5 hours duration is necessary to get a full charge The l
23. rogramming allows a measurement and instrument stop without being present 8 1 3 Repetitive delayed mode As previously it is possible to set measurement end and beginning at moments date time in case of absence and according to an established period For example following of a weekly noise exposure in case of night work Principle set the start and end dates of the first measurement then indicate the number of measurements to perform the following days at the same time Move the cursor with 1 key arrow set date and time of first measurement starting and end Modify the item Repet 01 indicating the required number of repetitive measurements from 02 to 05 Move the cursor until OK pictogram appears Press 3 key linked to this pictogram Programming of measurement launching is performed VV V Y Y The last two lines specifies e that memory capacity is sufficient OK e that battery capacity allows the measurement OK In case of incompatibility KO is displayed for OK In this case e Erase memory of the instrument e Load the battery Note about battery loading KO will be displayed if and only if the residual capacity does not allow to perform the first measurement You must load the battery before any launching of measurements and complete the loading after 3 sessions of 8 to 10 hours of measurement 8 1 4 Delayed Measurement wait The principle of a delayed or free repetitive delayed measurement imposes
24. s to set are the following Heure T e Language French or English e Date Time set date and time 53 5 6 Autonomy The autonomy gives information about the remaining memory capacity expressed in measurement i icd Mem 96 periods and about the possible measurement duration according to the remaining capacity of the battery Batt 50 Ex 99 means that the instrument can perform 90 measurement sessions 1 measurement 1 work Daa station 16H00 5 7 Instrument as DS200 n This screen gives information about the items of the noise dosimeter 11030001 e the instrument and its serial number Microphone e the microphone and its serial number cis ep 110300563 e the version number of the firmware Version E27 1 V1 0 5 8 About Fab en France N NF EN 61672 This screen gives information about the manufacturing origin the reference standards of the instrument NF EN 61652 and the dates of last and next checking NF EN 61260 Classe 2 Verifie le 11 2009 A v rifier le 11 2010 6 Calibrate the instrument Before each measurement series a Calibration must be performed with an appropriate calibrator A control shall be also performed at the end of the measurement The deviation between both calibrations must not be higher than 0 5 dB If this deviation is higher than 0 5 dB the performed measurements are questionable Reminder A reference source of noise such as a calibrator supplies a noise pressure level
25. t 135 dBC e upper exposure value Lex 8h gt 85 dBA and LCpk gt 137 dBC These two thresholds are complemented by a third one called Exposure Limit Value which should not be exceeded under any circumstances e Lex 8h gt 87 dBA and LCpk gt 140 dBC 2 2 Labour law It is mainly based on Articles R4433 1 R4433 2 and R4433 7 and complemented by the Decree of July 19 2006 2 3 Measurement It is mainly based on Articles R4433 1 R4433 2 and R4433 7 and complemented by the Decree of July 19 2006 The measurement must be done in compliance with prescription of the EN ISO9612 2009 standard Principle the standard recommends three methods of measurement e by task e by profession or function e byfully day This standard also adds the measurement processing including the estimation of measurement uncertainty 2 4 Noise exposure Exposure points This simplified method is well adapted for workers whose workstation is constituted by several identifiable tasks The difficulty of summons dB levels does not allow a fast approach of the daily nose exposure level using this method provides a very significant operational flexibility It takes into account nose exposure expressed in Pa h of various tasks that can be added to get an daily global nose exposure From that determination of Lex 8h daily exposure becomes easier with a research in a dedicated corresponding table This table is available in the ED6035 document published by the INRS
26. t we use calibrator with rated value Ref 940 dB of 94 dB at 1000 Hz To modify it Cr CI 0 0 gt Putthe cursor on Ref with 2 or 3 key Adjust at the required value dB per db 03 01 04 2011 7 Conventional sound level meter The DS200 has 2 running modes e conventional sound level meter e Noise dosimeter integrator averager DS200 These 2 functions are activated by pressing 2 or 3 key linked to the pictograms Before each measurement it is advised to calibrate the instrument see page 12 From the starting screen press 1 key The DS200 processes the sound pressure signal and displays at the same time the following informations e Temporally weighted sound pressure level e Maximum and minimum values of levels on the measurement time e Level of maximum peak sound level on the measurement time 2 selections of dynamic ranges are possible e 60 140 dBA for the measurement of sound atmospheres in a noisy industrial environment e 40 120 dBA for the measurement of sound atmospheres in services sector or low noisy industrial environment 7 1 Set the instrument before the measurement gt Select the measuring range and the time constant by pressing the 1 key LCpk 4157 dB For the a A frequency weighting the instrument proposes the measurement according to 2 dynamic 85 ranges and 2 time constants Fast F Slow S Possible selections are ie e LAF40 dynamic range of 40 120 dB A frequency weighting F fast temporal
27. the occurrence of overload but the percentage calculation provides a level of alert on measured and displayed levels by the instrument 9 2 Power supply This pictogram provides information on the remaining power In case of low battery less than one de bar on the pictogram the instrument stops the measurement and turns off saving the current results 9 3 Over range measurement In measurement conditions out of the dynamic range measured values are not displayed and are et are replaced by signs e if the value is higher than the top of the range 40 120 the top of the range 60 140 stays opened e if the value is lower than the down of the range 40 for the range 40 120 and 60 for the range 60 140 19 9 4 Detection and counting of peak pressure levels 135 137 140 dB Detection principle the detection of peak pressure levels is made at the frequency of instrument sampling about 23 kHz So theoretically it is possible to detect several thousand of values maximum 23 000 values per seconds During measurement the instrument records the temporal evolution on an elementary duration programmable from 1 s to 60 s usually 1 s it displays and keeps in memory the maximum peak pressure level reached during each duration of elementary integration Results the reading gives for the total measurement duration e on the instrument the maximum peak pressure level reached during the measurement e with the software t
28. weighting max 1157 e LAS40 dynamic range of 40 120 dB A frequency weighting S slow temporal weighting e LAF60 dynamic range of 60 140 dB A frequency weighting F fast temporal weighting e LAS60 dynamic range of 60 140 dB A frequency weighting S slow temporal weighting min 73 4 LAFO D gt a Raz Note C or Z frequency weightings of sound pressure peak level must be selected in Measurement programming menu 7 2 Perform a measurement Measurement is immediate or During measurement two actions are possible LCpk 115 7 dB e reset memorized levels 85 2 e hold measurement thanks to pause function dBA max 115 7 To reset all the values min 73 4 gt Press 3 key Raz pictogram resetting affects LAF Mraz e LAF or LAS maximum and minimum levels e LCpk maximum peak pressure value e information about overload Pause function allows to stop the measurement in progress to avoid unwanted events or to perform a manual report of results gt Press 2 key hold pictogram gt Press again 2 key to back to measurement gt Quit conventional sound level meter function and back to a home screen pressing 4 key 13 8 Noise dosimeter integrator averager gt Press 2 key from the starting screen LCpk 128 7dB LAeq Di 095 3dB LCeq Di 098 7dB The DS200 processes the sound pressure signal and displays the following informations according to the initial setting e the equivalent
29. y leaves current screen Screen key From measurement screens it gives access to other screens On Off key C 4 2 Screens presentation e 3 screens represent the different measurement and calibration modes accessible with 1 2 3 keys or LCpk 115 7 dB LCpk 128 7dB 85 LAeq Di 095 3dB Ref 32 LCeq Di 098 7dB CrCl 0 0 dBA V1 max 115 7 LAeg T Lorie eps dB SM LGeg T 4B 0 3 min 73 4 001 00 00 00 01 04 2011 00 Raz 40 E Fu BO Lo HOR SEE Conventional Dosimeter exposimeter Calibration sound level meter with storage R e Press 5 key to show the screen of choice of different settings Contr R tro Prog mesure i Lecture PC Configuration Autonomie Instrument A propos 5 Settings Instrument setting is for all the useful and necessary operations for the success of the measurement to contr R tro read data or to transfer data It also gives informations about the international standards the element Prog mesure of the instrument and the date of last checking I Lecture Important this measurement setting is automatically saved and loaded for the next measure T Autonomie Instrument Apropos 5 1 Brightness backlight To optimize display reading gt Set the brightness by pressing function keys 1 and 2 gt Backlight the LCD screen for an easy reading in dark place 1 352 No means backlight is not activated and Yes mea
Download Pdf Manuals
Related Search