User Manual HB4056-01(EN)
Contents
1. Polyester foam Microphone Brass Nickel Page 36 of 51 Motion Sensor Audio events recording Plus amp Pro Audio Notes Plus and Pro Recorded Data Parameters LAvg TWA 8hr Dose LAEQ LEPd LEX 8h LAPk Time Pa Hrs CASELLA Motion sensor detects any non stationary motion The index represents the percentage of measurement time that movement is detected during an entire measurement run 15 second including 3 second pre trigger level triggered sources include LAF LAS LCPk LZPk 8kHz sampling rate 16 bit compressed wav format An audio note up to 15 seconds duration for each measurement run The dBadge2 simultaneously records and computes ALL noise data and for EVERY measurement run The comprehensive set of data containing all of the below parameters is available to view and analyse within the Casella Insight PC application The Dosimeter Setups D1 D2 and D3 simply define which parameters are displayed on the instrument itself but all values are automatically stored in the memory of the dBadge2 for download Projected TWA 8hr Proj Dose LCEQ Proj LEPd LEX 8h LCPk Time Pa Secs LAIEQ LZPk Time ISO Dose using ISO Criterion level ISO Proj Dose using ISO Criterion level Projected Exposure Points using ISO Criterion level Exposure Points using ISO Criterion level Exceedance time LAS gt Exceedance level HML LC LA LCpk gt 135 count LCpk gt 137 co2. EFNet FENCE DATA MEM 30Hr DOSE 64 2 DOSE 128 4 3 TWA8h 82 9qB TWA8h 82 9dB Battery and Octave Data Memory Satus D1 Optional D2 D3 Measurement Data Optional D1 THO C90 Q5 DUR 02 59 02 SIOPRING b Stop Mode A RUN SIMULTANEOUSLY PRESS LEFT amp RIGHTKEYS Continue Run 13 2 Configuration Menu Structure May 2015 Page 33 of 51 CASELLA 4 lo Enter Configuration Mode Press T Key R Key Land R Kys logether at Qvitch On ew s ae Set Language ar Egish 27 Jan as Adjust Date amp Time 14 45 21 Set Digolay Contrast CONTRAST D1 isthe primary Dogmeter and is always active Visual Alarm sare based on D1 values Dosim eter 1 as Mom aS mee a ae Dosan D1 may digolay ANYGeneral Noise m T90 C90 T80 C85 T90 C90 Setup IS0 12 LEQ SAS va eee Seri ma Eri or Dos related data values Optional j 7 NOTE Custom setups for D1 D2 or D8 Dosim eter 2 a D seat are defined usng the Insght PC Applic ation Setup Ose OSHA PEL cai Sie Be Dosim eters D2 and D3 maybe enabled to how additional Optional z LAVG based Dos results based upon alternative Threshold Criterion and Q Factor Exchange rates Dosim eter 3 S t u p DB DG DG DG 32 000 05 T90 090 05 T80 C85 08 T90 090 05 eae OSHA HC OSHA PEL ACGIH i MSHA T80 C85 05 YL dy Auto Sroll Sreens AUTO SCROJ LL m Prog Timer 8Hrs Sun 8 00 Timer Off Timer DUR 8 00 HM Slect Timer Mod
3. Estimated Exposure is a calculated estimate of the exposure of the wearer if the average level measured continues for the period defined by the Criterion Time Estimated exposure is expressed in Pascal Squared Hours Pa h Fast Time Weighting is a standard time weighting applied by the sound level measurement IEC 61252 LAE LAeq LAF May 2015 instrument is the International Standard for Personal Sound Exposure Meters is the A weighted exposure level It is the level that would contain the same amount of energy in one second as the actual noise has during the whole measurement period is the A weighted equivalent level i e the A Weighted average noise level over the measurement period According to ISO procedures a doubling in energy results in a 3qdB change in the Leg or an exchange rate of Q 3 There is no Threshold value taken into account is the A weighted sound level measured with Fast Time Weighting Page 39 of 51 LAS LASmax LAvg LCpk LEP d LCeq Peak CASELLA is the A weighted sound level measured with Slow Time Weighting is the maximum A weighted sound level measured with Slow Time Weighting is a parameter used in predominately in OSHA measurements It is the average sound level over the measurement period equivalent to Leq Normally the term is used when the exchange rate Q is some value other than 3 e g for the OSHA Hearing Conservation Amendment where Q 5 A Thr
4. key e g G dBadge2 Download Utility oo amp TAPA Download Selected Device Downloads all available data from the specified device creating XLSX spreadsheets and WAV files in the process Click to begin download With the dBadge2 to be downloaded in the left most pocket of the Docking Station powered and connected by the USB cable click on the icon as shown below to search for connected devices a dEadge Download Utility of 6S C1obeOs 2 t Click Co to search for a connected device This will display the connected dBadgez dJ d8adge2 Download Utility cLoteecs tA Jes Aan Py EI and clicking RA will show stored results Further clicking on the highlighted file or by clicking will open the data in Excel ina oLETEC o 5 Model dBadgez Fra Sel Mumia 1251255 Meta 1 Pathe Uny Doou le a g 20150 1251 May 2015 Page 31 of 51 CASELLA 12 Casella Insight Data Management Software J a Rape s ae OTE cz mo BORAw es r TSF afin ng aa ee Creme Bacon AS Vaan chem 2 The Casella Insight data management software provides a convenient solution to RS tee renee eee err the downloading storage management and oe oe ge a analysis of measurement results dBadge2 can also be custom configured see section 7 6 2 by and downloaded to PC using the Docking Station
5. LAeq LCpeak Lower Level LZpeak LAVG TWA 8Hrs Projected TWA 8Hrs Lepd Projected Lepd Note Source fields relate 1 y 8Hrs text present on dBadge2 c Projected LEX 8Hrs 9 Motion sensing Visual Alarm 2 _ Enabled LAVG x 110 dB lv 30 GE v Due to the unattended nature of noise dosimetry it is important for workers to be fully engaged with the risk assessment process In some cases they may be tempted to tamper with the instrument or try to influence the results the worst case scenario being that it is taken off for the majority of the time In order to check for wearer compliance and decide if the sample is valid or not dBadge2 has a sensor that reports a Motion Index as the percentage of time that movement has been detected during a measurement run which is reported by Casella Insight data management software or the Download Utility May 2015 Page 27 of 51 CASELLA 10 Airwave Application The Airwave Application allows an instrument s status and measurement progress to be checked discretely without having to disturb the worker who may be performing a critical task or be inaccessible lt must be installed on a suitable mobile device which supports Bluetooth 4 0 connectivity and is running Android operating system version 4 3 or higher Please download the latest version of the Airwave App from the download section of the dBadge2 web page It is recommended that the dBadge2 is in Lock Mode to d
6. LEX 8Hrs Projected LEPd Projected LEX 8Hrs Pa Hrs Pa Sec ISO Dose using ISO Criterion Level Projected ISO DOSE using ISO Criterion Level ISO Exposure Points using ISO Criterion Level Projected ISO Exposure Points using ISO Criterion Level General Noise Parameters LAS LAF LAEQ LCEQ LAIEQ LAPk LCPk LZPk LAFmx LASmx HML LCeq LAeaq Motion Index 0 100 7 7 Audio Notes Available in Plus amp Pro Models Only The Audio Notes function allows you to record 15 seconds worth of further information at the beginning of every measurement run e g AUD Noles task and location When this function is enabled a prompt will appear at the beginning of the run requiring the right R button to be held for the duration of the audio note recording Note that if no button is pressed within 30 seconds the run will commence as normal Press the right R key to accept or left L to change 7 8 Octave Mode Available in Pro Model Only The Octave Mode will enable real time octave band analysis from 31 5Hz to 8kHz LEQ didni v OCTAVE MODE and LMax data is provided for each Octave band NOTE having the Octave Mode enabled reduces battery life therefore you may wish to disable it to extend the run time Press the right R key to accept or left L to change May 2015 Page 24 of 51 CASELLA 7 9 Pause Mode Enable the Pause mode so that you may temporarily stop a measurement run for exam
7. 6 hours Therefore the Lavg at the end of the 6 hours 90 0 dB in this example is projected forward to the end of the 10 hour working shift This level 90 0 dB for 10 hours can now be used to calculate the TWA 8h which results in 91 6 dB 95 0 90 0 oo s TWA 8h dB Lavg dB 0 gt Projected Duration Working Shift 75 0 Measurement Duration Duration hours Figure 5 shows a measurement of 6 hours green line this is then projected forward to the end of the 10 hour working shift red line where the projected value crosses the original TWA 8h blue line is the actual TWA 8h shown by the dashed line May 2015 Page 43 of 51 CASELLA 17 Noise Measurements A Simple Analogy In order to try and help explain some of the above concepts an analogy can be used Taking a possible requirement of 100 noise dose equates to 90 dB for 8 hours this is a TWA 8h of 90 dB this could be considered as running water from a tap The sound level can be considered to be how fast the water is running from the tap If this water is collected in a container then this can be equated to the noise dose So using this analogy running the water at a flow rate of 10 litres per hour for a duration of 8 hours will result in 80 litres of water being collected Therefore a volume of 80 litres equates to 100 dose lf the water was run at the same flow rate but only for 4 hours it
8. Auto Scroll of the display Select deselect Timers Select deselect Bluetooth connectivity Clear the memory Cycle back through the configuration or exit to the default screen Any changes made will become the default configuration the next time that the dBadge2 is powered up 7 1 Language The first screen in the configuration menu is the language screen Set your preferred language from English American English French German Italian Spanish amp Portugese by scrolling through the options SAS Press the right R key to accept the language or the aa left L to scroll through the options Once the language has been accepted the display advances as OS to the next menu option 7 2 Date and Time 22 34 43 23 Jul 2013 a If the data and time are correct press the right R key to advance to the next menu option otherwise press the left L key to make adjustments The value to adjust will highlight in red May 2015 Page 20 of 51 CASELLA Set Hour R to accept or L to scroll Set Minute R to accept or L to scroll Set Day R to accept or L to scroll ai Oe 2013 Set Month R to accept or L to scroll Set Year R to accept or L to scroll 7 3 Contrast Set the display contrast by pressing R to accept and L to choose from 6 brightness CONTRAST levels 7 4 Display Timeout The display can be left permanent
9. Configurations ISO9612 LEQ C85 LAF LAEQ LAFmx LEQ based Dose data 3dB doubling Parameters common LEX 8Hr Projected work time 8 hours to majority of Pro LEX 8Hr European monitoring LC Pk requirements based on ISO9612 and LAeq ISO AUS NZ LEQ C85 Displayed Parameters Meter Settings LAF LAEQ LAFmx LEQ based Dose data 3dB doubling Australian variation LEX 8Hr Projected work time 8 hours using LZpk Pro LEX 8Hr LZPk 7 6 2 Customised Dosimeter Configurations Any of the general noise parameters listed below may also be configured in Casella Insight for display in D1 D2 or D3 Threshold Tnn Adjustable 70 to 90dB in 1dB steps Criterion Cnn Adjustable 70 to 90dB in 1dB steps Exchange Rate Qn Q 3db or Q 5dB LAS Exceedance level 70 to 140dB in 5dB steps ISO Dose Criterion 70 to 90dB in 1dB steps Projected Work duration 1 to 24 Hrs in 10min steps May 2015 Page 23 of 51 CASELLA 7 6 3 Dose Data Parameters available for display on dBadge2 LAvg based Dose Parameters North America LAvg Tnn Qn TWA 8Hrs Tnn Qn Projected TWA 8Hrs Tnn Qn DOSE Tnn Cnn Qn Projected DOSE Tnn Cnn Qn Work time Exceedance time LAS gt Exceedance Level Time to 100 Dose for LAvg based meter Dosimeter setups D2 and D3 may be used to display additional LAvg base dose parameters shown using alternative T C and Q values LEQ ISO Based Dose Parameters Europe Australia etc LEPd
10. Exposure the Exposure Time and a Reference Time of 8 h is the C weighted equivalent level i e the C weighted average level over the measurement period According to ISO procedures doubling the energy results in a 3dB change in the Leg or an exchange rate of Q 3 There is no Threshold Value taken into account is the maximum level in dB reached by sound pressure at any instant during the measurement period With the dBadge2 Peak can be measured with C Z or A Weighting Slow Time Weighting is a standard time weighting applied by the sound level measurement SPL May 2015 instrument is the sound pressure level This is the basic physical measure of noise and is normally expressed in dB Page 40 of 51 CASELLA Threshold Value is the threshold below which sound levels are excluded from calculation OSHA measurements use an 80 dB threshold and call for a hearing conservation program to be implemented when the eight hour TWA exceeds 85 dB 50 dose TWA is the Time Weighted Average Used in OSHA measurements the TWA is the daily personal exposure level calculated from the LAvg and measurement duration Z Weighting is a linear or un weighted measurement In the dBadge2 system it is used for the measurement of peak sound pressure level against the OSHA standard 16 Projected and Normalised Noise Measurements Noise exposure limits are normally set nationally or more locally These limits would define that a worker
11. Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation RADIATION EXPOSURE STATEMENT The product complies with the FCC portable RF exposure limit set forth for an uncontrolled environment and is safe for intended operation as described in this manual May 2015 Page 50 of 51 CASELLA CE CE DECLARATION OF CONFORMITY Casella declares that this product is in compliance with the essential requirements and other relevant provisions of applicable EC directives A copy of the EU Declaration of Conformity for this product may be obtained by clicking on the Product compliance documentation link at www casellasolutions com pid zz WEEE INFORMATION FOR EU MEMBER STATES ONLY The use of the WEEE symbol indicates that this product may not be treated as household waste By ensuring this product is disposed of correctly you will help prevent potential negative consequences for the environment and human health which could otherwise be caused by inappropriate waste handling of this product For more detailed information about recycling of this product please contact your local waste disposal service or contact the agent where you purchased the product May 2015 Page 51 of 51
12. can be seen that only 40 litres would be collected This would result in 50 dose This would mean that if a worker was exposed to a noise of 90 dB but only for 4 hours then they would receive 50 noise dose This is a TWA 8h of 85 dB NOTE the TWA 8h figure is not halved due to sound being logarithmic as the exchange rate used in this example is 5 dB this means that doubling or halving the energy will cause a 5 dB increase or decrease Likewise if the water was run at the same flow rate for 16 hours then 160 litres would be collected This results in 200 dose and a TWA 8h value of 95 dB The length of time that the water is run for is effectively the working shift Therefore a shift duration of something other than 8 hours would mean that the flow rate of the water i e the sound level would have to change to ensure that 80 litres of water is collected by the end of the working shift to represent 100 dose If the flow rate of the water was now 20 litres per hour then it would only take 4 hours to collect the full 80 litres This means that if the average sound level was 95 dB then a worker could only be exposed to this sound for 4 hours at which point they would then have been exposed to 100 of their allowable noise dose The dose can be thought of as taking the total volume of water collected over the measurement duration and comparing it to the total volume which is allowable In terms of noise dose is the total amount of noise
13. has been specified as an alarm source the parameter will be shown in a green font for levels below the lower limit Above the lower and upper trigger levels the Alarm parameter will be displayed using yellow and then red coloured fonts respectively as shown It is recommended that the display is always on to take full advantage of this facility see Section 7 4 ISO 9612 LEQ C85 The dBadge2 s high intensity LED also flashes blue at a slow rate when a lower level exceedance is active and at a fast rate whenever an upper level alarm has been triggered May 2015 Page 26 of 51 CASELLA The following Casella Insight data management software screens show the alarm source and level settings F Instrument Lst i gt Nowe Dosimeters Inventory Manager 8457326 8474355 9651256 eanna Configuration Edtor Sampie Configuration Gereral Dosmeters Audo Alarms Timers Visual Alarms Visual Alarm 2 Source LAVG y LAVG Note Source fields relate to Dosimeter 1 only and colours refer to text present on dBadge2 display Configuration Editor Sample Configuration 12456 0200 12156 0200 Calbra on Que Date Days Remaining Coibradon Rests Disk Based Configuration fey Open Configuration File Save Configuration Fie ha Save As Configuration Fie General Dosimeters Audio Alarms Timers Visual Alarms _ Enabled Property Visual Alarm 1 _ Enabled Source LAS Upper Level
14. person is allowed to be exposed to a certain noise level criterion level Lc for a certain time criterion duration Tc A possible measurement for this is also to use percentage dose 100 noise dose equates to a noise level at Lc for a duration of Tc E g if Lc 90 dB and Tc 8 hours then 100 dose equates to 90 dB for 8 hours 16 1 Normalised Noise Measurements Normalised noise values refer to measurements made over differing durations but are then normalised to a standard duration The energy measured over a particular duration is equal to the energy when the duration is changed to the normalised value E g 90 dB measured over 4 hours is equivalent to 85 dB over 8 hours using a Q5 exchange rate Therefore 90 dB over 4 hours is 85 dB when normalised to 8 hours A type of measurement for noise exposure is the 8 hour time weighted average TWA 8h or the European equivalent metric noise exposure level over 8 hours Lex8h The measurements basically normalise the actual measurements to a standard 8 hour period This means that any measurements or calculations based on times other than 8 hours can then be normalised to 8 hours which allows for a direct comparison between different measurement intervals Normalising the values to 8 hours it can be seen that as the working shift duration increases then the TWA 8h also increases Assuming exposure a constant noise of 90 dB the TWA 8h increases up to 90 dB when the working shift reac
15. to the webbing lt is also possible to attach the dBadge2 to a harness part number D8147 Z by feeding the harness though the blank webbing buckle clip fittings part number 207073B For any existing harness that an employee might already be wearing use the pin attachment In addition the dBadge2 may be mounted to most hard hats using the mounting kit part number CEL 6354 May 2015 Page 9 of 51 CASELLA and safety pins This consists of a strap with four hooks which loop over the rim of the hard hat 5 2 The Microphone amp Windscreen During use it is essential that the dBadgez is fitted with the Windscreen part number 20 7069B supplied The Windscreen protects the microphone from potential erroneous results due to air movement passing over it but also helps to protect from dust ingress moisture or minor impact damage It will not normally be necessary to remove the microphone but to do so unscrew anticlockwise When refitting take care since it has a fine thread and do not overtighten finger tight is sufficient To calibrate the dBadgez it is necessary to remove the Windscreen to expose the microphone Grip the black plastic body and pull in the direction of the arrow indicated on the tab of the Windscreen Do not pull on the foam which may become detached and hence need replacing replacement pack of 5 part number DB2WS Following calibration see Section 6 2 refit the Windscreen by aligning the tab with the recess in t
16. 51 CASELLA dB 17 Howrs 10 Figure 14 shows the 10 hour measurement blue line but also the same noise level continued for the rest of the 12 hour shift green line Projecting the 10 hour measurement for the remainder of the 12 hour shift means that the Lavg for the 12 hours equals the Lavg for the 10 hours 88 0 dB In order to calculate the normalised TWA 8h this time the measured energy represented by the green line is kept constant Once again the duration was changed from 12 hours to 8 hours dB _ esses oo ee a a a a aaa aaa Bd 2 ae aS a A k Hours 10 Figure 15 shows the 10 hour measurement blue line but also the same noise level continued for the rest of the 12 hour shift green line The TWA 8h is also shown red line which has the same measured energy as that represented by the green line This has assumed that effectively the level was 88 0 dB for the entire 12 hours and this was then normalised back to 8 hours which ends up the same situation as scenario 3 above Additional Considerations It is also possible to use other durations for normalising to e g TWA 12h However care should be taken with this as this effectively changes the criterion duration from the standard 8 hours to 12 hours In order to ensure that the amount of allowable noise exposure is not increased then it is necessary to reduce the criterion level This ensures that 100 noise dose is the same amount of energy rega
17. 7 8 subsequent presses of the right R key will display the following screens and a vertical cursor will appear at the extreme right of the screen and display the 8KHz band value The left L key will move the cursor to the left and display the other octave band values With the cursor at the lowest 32Hz band subsequent presses of the left L key will scroll to the previous screen and similarly with the cursor on the 8KHz band pressing the right R key will scroll to the next screen If results are required to be pre A weighted this can be enabled via Casella Insight data management software 6 4 Locking and Unlocking the Keys lt is recommended that the dBadgez is locked during a run to prevent the wearer tampering and this can be done automatically upon the start of a run having first selected Auto Lock in the configuration menu see Section 7 12 or manually as follows Press and hold the right R key for 2 seconds then press the left L key 3 times in quick succession as shown Aa padlock symbol will be displayed to indicate that the dBadge2 is locked and will not display any measured data May 2015 Page 16 of 51 CASELLA Locked Only battery and memory status will be displayed and the screen if 30 6Hrs mA Seep A will timeout if selected but any key press will return this screen for a DUR 07 35 45 further 20 seconds If during a measurement run the remaining battery or memory c
18. CASELLA dgeZ aa a Manu r e Us N 56 01 E 40 HB CASELLA Thank you for purchasing the Casella dBadge2 Personal Noise Dosimeter We hope that you will be pleased with it and the service that you receive from us and our distributors If you do have any queries concerns or problems please do not hesitate to contact us Casella prides itself on providing precision instrumentation since 1799 supplying eminent figures including Darwin and Livingstone A lot has changed in our 200 year history but what does remain is our commitment to reliable trustworthy and credible solutions For more information or to find out more about Casella and our products please visit our website at http www casellasolutions com UK Office Casella Regent House Wolseley Road Kempston Bedford MK42 7JY Tel 44 0 1234 844100 Email info casellasolutions com United States China Casella Inc Ideal Industries China 415 Lawrence Bell Drive No 61 Lane 1000 Unit 4 Zhangheng Road Buffalo Pudong District NY 14221 Shanghai 201203 USA China Phone 1 716 2763040 Phone 86 21 31263188 Email info casellausa com Email info casellasolutions cn May 2015 India Ideal Industries India PVT Ltd 229 230 Spazedge Tower B Sohna Road Sector 47 Gurgaon 122001 Haryana India Phone 91 124 4495100 Email Casella Sales ideal industries in Page 2 of 51 CASELLA 1 Introduction Noise induced hearing los
19. Weight Ingress Protection IP Rating Construction Materials May 2015 CASELLA 54 0 140 3 dB A RMS 96dB 90 0 143 3dB C or Z 0 0 6 100 0 Pa Hours 0 00 22 000 000 00 Pa2Sec 0 0 100 000 0 Dose A C and Z Type 2 Fast Slow and Impulse Q 3 or Q 5dB exchange rates 70 90dB in 1dB steps Set via Casella Insight Data Management Software 70 90dB in 1dB steps Set via Casella insight Data Management Software Accuracy better than 1min per month lt 54 dB 140 4dB RMS 143 4dB Peak Linear lt 3 seconds after power up 0 C to 40 C For I S and Standard Compliance 10 to 50 C for lt 0 8dB error limit lt 0 5dB over 85 112kPa lt 0 5dB over 30 90 non condensing Negligible 10 C to 50 C Internal NIMH 800mAH Typically 35 hours using Broadband Mode Typically 20 hours using Octave mode Note Increased display usage audio recording and Octave modes will reduce the available run time The internal fuel gauge reports estimated run time based upon the current operating status 6 Hours from fully discharged 24 hours 100 Internal micro SD Flash memory 300 hours of run data including 1 second profile data and up to 90 minutes of event audio recording USB 2 0 Full soeed 12Mbps via charging base 85Lx54Wx55H mm 117g IP65 with permeable air vent Plastic Case Charger PC ABS Mounting Clips POM Gasket Silicone Display window Acrylic Foam Windscreen
20. acoustic source of 85dB and complies with the immunity requirements of clause 15 IEC 61252 No additional devices are connected during normal use All settings and orientations of the instrument have similar radio frequency emissions These radio frequency emissions are within the specified limits of the above standard All modes of operation have similar immunity to power and radio frequency fields Electrostatic Discharge ESD there is no degradation in performance or loss of functionality following the application of electrostatic discharges 14 3 Microphone Specification CEL 252 Classification Type 2 Nominal Open Circuit Sensitivity 250Hz 30 5dB 3 0dB 31 6mV Pa Polarization voltage OV Capacitance polarized 250Hz 17pF Operating temperature range 0 to 400C Cartridge thermal noise lt 20dB A Dimensions IEC 61094 4 Type WS 2 May 2015 Page 35 of 51 14 4 Specifications Linear Operating Range Dynamic Range Peak Measurement Range Sound exposure Range Frequency Weightings Time Weightings Exchange Rate Threshold Criterion Level Real Time Clock Under Range Indication Overload Indication Peak Overload Value Stabilisation Time Operating Temperature Range Ambient Pressure Range Humidity range Magnetic Fields Storage Temperature Range Battery Run time Charge Time Maximum Run Duration Maximum number of Runs Storage Capacity P C Interface Dimensions
21. and Casella A BAN E Insight Data Management Software Once i i H Ta downloaded data can be stored under a ae worker s name location or process so that a eee n database of noise exposure can be built up a yee e Ar o j Me ces ert resa A colour coded system can be used to highlight workers who have been exposed to specific action levels Graphs can be modified by adding exclusion zones which subsequently provides exposure data with and without these zones Data can also be viewed according to different measurement protocols e g either ISO or OSHA or alternatively the data can be customised to a user s own requirements Furthermore a multi track approach to displaying time history events pauses exclusions and modifications pauses analysing data because it allows you to view all the data tagged to the same time line e g view profile data listen to an audio file associated with an event PLUS amp PRO models or read write descriptive notes rd ar A i Li E ie Eoi E joey Tira pi TROLS cad Liaq f ia 4d Ea Sn D ime TRO Paige Later Finiti Eemi i 2 Ensbiad m Fi dadio Ga Fig Fikaris iteki kia hori eill HHn EH Enina mS 1 Fa Maior Saget cieck hera ko ee gee Core Mia L Meo Hoia wrcasteebie bor than ran I E RG LTE AWALE ERR Ne Lidia Tee all Lia ih Faik mehh iiH ilH nahn Lisle besa iH Reports can summarise the required dose data and any information about the worker s w
22. apacity falls below 2 hours warning screens will be displayed and you may wish to instruct the wearer to report this to you To unlock the dBadge2 follow exactly the same procedure press and hold the right R key for 2 seconds then press the L key 3 times in quick succession 6 5 Stopping a Measurement Run If the dBadge2 is locked unlock as described in Section 6 4 above To stop the current measurement run press and hold the left L and right R keys simultaneously for the period of the 3 second countdown releasing will cease the operation The display will then show the data from the measurement run that has just been completed See Section 6 7 A new measurement run can be started immediately by following Section 6 3 Please ensure there is memory capacity remaining if a consecutive measurement run is to be performed 6 6 Pausing a Measurement Run Some measurement strategies may require a measurement run to be PAUSED e g during a worker s lunch break To enable this function it must first be selected in the configuration menu see Section 7 9 When a measurement run is in progress the action of pressing both left L and right R keys simultaneously will cause the dBadge2 to enter the pause mode releasing during the countdown will cease the operation Note during PAUSED mode all time history profile data is recorded and paused event markers are saved into the data set Cumul
23. art and stop a measurement run or halt a run after a fixed period These options may be selected in the Configuration menu see Section 7 15 To manually start a measurement run press and hold both the left L and the right R keys down together which will initiate a 3 second countdown as shown The keys must remain depressed during the countdown for the measurement run to begin releasing during the 3 2 1 countdown will cease the operation Once the measurement has begun the gt play symbol will appear in the top left of the screen The display will cycle between the following screens if the Autoscroll mode has been selected in the configuration menu see Section 7 or may be scrolled manually by pressing either the left L or right R key oe E 7 D THO CHACE NABH 82 9 dB DUR 02 5902 7Pk 87 4 dB DOSE H4 lf Dosimeters D2 and D3 are enabled the following screens will also be displayed D1 is the primary dosimeter which reports selected dose values plus other gt noise parameters peak max etc D2 pe we TD LAVG 63 2 dB DOSE 64 2 7 and D3 offer additional The header bar NABh 62 9 dB TWABh 82 9dB for D1 measurements is the background screen colour D2 has a blue header bar and D3 a yellow header bar May 2015 Page 15 of 51 CASELLA If the Octave mode has been enabled in the configuration menu applicable to the dBadge2 Pro model only see Section
24. ative values shown on the display represent the measured data and exclude the time and noise level during the paused intervals May 2015 Page 17 of 51 CASELLA From the PAUSED screen to continue the run press the right R key as prompted by the play symbol to stop the run press the left L key as prompted by the J stop symbol and a STOP SURE confirmation message will appear for 3 seconds then default back to the PAUSED screen if no action is taken to stop the run press the right R key as prompted by the stop symbol to return to the PAUSED mode press the left L key Note that the Airwave App described in Section 10 will override Start Stop Pause and Auto Lock modes 6 7 Reviewing Measurement Run Data As soon as a measurement run has been stopped the dBadge2 will automatically display results from the last measurement run The display will cycle between the following screens if the Auto Scroll mode has been selected in the configuration menu see Section 7 or may be scrolled manually by pressing either the left L or right R key The screen contents will depend upon the setups selected for D1 and D2 D3 and octave band analysis if selected ISO View ISO9612 LAFmx 91 4dB Lex8hr 82 4dB P Lex8h 79 4dB ISO9612 Dur 02 59 02 LAeq 82 4 dB LCpk 98 3 dB OSHA View OSHA HC 02 59 02 T80 C90 Q5 Lavg 87 4dB Twa8h 34 4dB P Lex8h 87 4dB Du
25. crosses the vertical green line assuming this green line is extended 16 2 Projected Values It is quite rare that a measurement would be carried out for exactly 8 hours Also it is possible that a measurement is not carried out for the entire working shift which equally may not necessarily be 8 hours It is therefore possible to use projected calculations This basically assumes that the worker is exposed to the same sound level for the remainder of a particular time Projected values allow a shorter measurement to establish the noise level representative of the workers full shift The assumption is made that the level representing the energy accumulated at a point in time e g the Leg or Lavg value will continue at the same level for the remainder of the workers full shift The projected energy at the end of the workers shift is kept constant but the time is changed from the duration of the workers full shift to the standard 8 hours Therefore if the workers shift is greater than 8 hours then the TWA 8h will have a larger value in comparison to the Lavg at the end of the full working shift Likewise if the full shift is less than 8 hours then the TWA 8h will be smaller than the Lavg at the end of the full shift May 2015 Page 42 of 51 CASELLA From the above it can be demonstrated that if the working shift is exactly 8 hours anda measurement is carried out for less than this time the Lavg at the end of the measurement will eq
26. d combined charger Updated amp simplified Plug in for Casella Insight data management software The models and other key features of the dBadge2 range are listed below dBadge2 dBadge2 dBadge2 H M L C A a 8 a Programmable delay timer amp gt Fixed run timer s Pause function 2 Wireless Time history Audio recording Octave band Bluetooth Smart Wireless may be disabled in any version using the USB utility App The addition of Bluetooth 4 0 wireless connectivity and the supporting Airwave App enables remote control and monitoring of the instrument s status such as battery usage memory capacity and measurement progress without having to disturb the worker This added confidence in the measurement minimises the likelihood of having to repeat a survey due to potentially flawed data and therefore maximises your productivity May 2015 Page 3 of 51 CASELLA Personal noise exposure measurement can be confusing given the plethora of parameters available and the combination required to meet different standards and regulations but the dBadge2 has been specifically designed to simplify the process Like its iconic predecessor the dBadge2 concept is to capture every possible noise exposure related parameter during a measurement run and make it available for subsequent download and analysis The user has only to choose the most relevant parameters to d
27. d run time from the maximum of approximately 35 hours After approximately 20 seconds the display will blank and the red LED on the dBadge2 will continue to flash Pressing either the left hand L or right hand R key or tilting the docking station will wake the display for a further 20 seconds to check progress Once fully charged the LED will turn blue A charge time from empty to full is approximately 6 hours which will allow a run of circa 35 hours Note this is with no audio recording or octave band analysis and assumes that the display is off for 95 of the time Shorter charge times will result in reduced pro rata run times Estimated battery life is 1000 cycles The NiMH battery May 2015 is integral to the dBadge2 and must only be replaced by a qualified person CASELLA 5 3 1 Linking Docking Stations Together A master docking station can be linked to another via an interconnect cable C6359 0 2 supplied wth part 207078B EXT Up to 3 docking stations can be linked to the master as shown below enabling up to 12 dBadge2s to be charged simultaneously from one PC18 6 Using the dBadge2 6 1 Switching on the dBadge2 Press the left L key to turn the dBadge2 on and a start up sequence will commence If you wish to configure the dBadge2 manually then this must be done at this point Please refer to Section 7 for further details This initial start up screen displays the dBadge2 model number a second scr
28. e OFF Axed Run Duration 1 2 3 4 5 6 7 8 9 10 Hours Program delayed Start 4 Bluetooth Enabled Bluetooth On Disable in radio sensitive areas Clear Memory Clears All result amp audio eae data from memory Are You ally Qure SURE Don t loose your valuable data kiad Fecord Audio Note at Sart of each Run Measure Cumulative Octaves vame NOTE Tis will reduce your battery life Pause Function is available Pause Function D Audio Event Recording Ac tive Event On Colour Coded Visual Aarm Values doB Alarms Q Auto Lock Keypad at the Gart of every Run Auto Lock I waz LAf Small or Large Font Y 123 dB dilay mode Configuration Complete ey Return to top Mode Feature isavailable in Y Plus amp Pro Models Only May 2015 Page 34 of 51 CASELLA 14 Technical Specifications 14 1 Sound Exposure Meter Dosimeter Standards IEC 61252 Ed 1 1 b 2002 ANSI 1 25 1991 R2007 for dosimeters and sound exposure meters IEC 61260 1995 Electro acoustics Octave Band and Fractional Octave Band Filters Class 2 ANSI 1 11 2004 R2009 Octave Band and Fractional Octave Band Analog and Digital Filters Class 2 14 2 Electromagnetic and electrostatic compatibility The dBadge2 conforms to the requirements for EMC emissions and immunity as specified in IEC61000 4 2 6 1 61000 4 6 6 2 61000 4 3 CISPR 61000 6 3 The dBadge2 was tested with a pink noise
29. e cycle is performed The unit carries out two discharge charge cycles and displays the actual charge and discharge capacities mAHr of each cycle C1 48 mAH i mAH i mAH a May 2015 Page 49 of 51 CASELLA The D2 capacity value indicates the batteries storage capacity following a full charge It is suggested that this should exceed 70 of the cells nominal capacity i e 560mAh 20 Declarations WIRELESS BLUETOOTH 4 0 CONNECTIVITY All models support wireless connection via Bluetooth 4 0 Low energy or Smart This connectivity is compatible with mobile and PC devices that support Bluetooth 4 0 only TX power O dBm to 23 dBm Receiver sensitivity 93 dBm Range Typically gt 25m line of sight and depending on local RF conditions The instrument contains a Bluetooth Low energy wireless transmission module BLE113 from Bluegiga technologies The Bluetooth Qualified Design IDs for this module are Bluetooth Controller QDID BO21015 Bluetooth Smart Software QDID B018942 Copies of the modules regional approvals certificates may be obtained from Casella or Bluegiga re This product contains an FCC and Industry Canada certified Bluetooth Low energy wireless transmission module FCC IDENTIFIER QOQBLE113 Industry Canada IC 5123A BGTBLE113 Single Producer BlueGiga Technologies Inc Model BLE113 Bluetooth smart module Modular Type Single Modular FCC CONFORMITY STATEMENT This device complies with
30. e volume 35 litres in 8 hours as opposed to the 7 hours of the working shift May 2015 Page 44 of 51 CASELLA Therefore 35 litres divided by 8 hours equals 4 375 litres per hour This would be the analogous to the TWA 8h value Using the same values the projected dose can also be calculated 25 litres of water has been collected after 5 hours If the working shift was 5 hours this would be a dose of 25 80 litres which equals 31 25 dose this is what the dose at the end of the measurement would be However as the working shift carries on for another 2 hours then a total of 35 litres would have been run This means the projected dose is 35 80 litres which equals 43 75 18 Examples of Possible Measurement Scenarios In order to simplify these discussions the equivalent continuous sound level i e Leq or Lavg is used Scenario 1 Criterion duration Tc 8 hours measurement duration Tm 5 hours shift duration Ts 8 hours The noise which the worker is exposed to is measured for 5 hours However the worker is exposed to the same noise levels for the remainder of the shift such that the worker is exposed to this noise level for the entire 8 hours ab as 0 Hours 5H Figure 6 shows the 5 hour measurement dB Hours ani ee es a a a es a 5 Figure 7 shows the 5 hour measurement blue line but also the same noise level continued for the rest of the 8 hour shift red line In this situation the measu
31. een then displays the time and date and firmware version e g V1 04 and a third screen displays the serial number of the dBadge2 with two lines of user defined text This may be up to 32 characters and is input via Casella Insight data management software The screen then defaults to the main Saag dashboard screens which either auto or 22 34 43 manually scroll depending whether the 23 Jul 2013 Autoscroll feature has been enabled Please refer to Section 7 14 S N 123456 The Q symbol shows that Bluetooth is enabled Jon Snow TESEN Co Additional symbols appear in the Plus and Pro models and denotes Audio Record and or Octave modes are enabled May 2015 Page 12 of 51 CASELLA AUDIO 2 5Hrs Di THO 090 05 Di THO c30 05 7 OCTAVE L7EQ DUR 02 59 02 DOSE 34 4 LAVG 67 4 dB st Tillery PDOSE 78 4 Pusat TWA8h 82 9dB LZEQ 250Hz 56 7dB gt If the Autoscroll feature has been disabled see Section 7 14 pressing the right R key will scroll through the available results from the last run depending upon how the dBadge2 was configured e g octave band results are shown above which are only available on the Pro model and if selected in the configuration menu see Section 7 8 6 1 1 Error Messages At Power Up lf there are any error messages they will appear after the initial start up screens Cp 8Hrs MEMORY FULL CHARGE DOWNLOAD Warning messages appear when there is less than 9 hours cha
32. energy that a worker is exposed to in comparison to a defined allowable limit The TWA 8h figure can be thought of as taking the total volume collected and then calculating what flow rate would be required such that the same volume of water would be collected if the tap had been running for 8 hours In noise terms TWA 8h is the average sound which after 8 hours gives the same amount of noise energy that a worker is exposed to during their working shitt This analogy can be extended to cover the concept of projected values lf the water was run at a flow rate of 5 litres per hour for a duration of 5 hours then 25 litres would have been collected If it is then assumed that the water is run at the same flow rate for another 2 hours then this would suggest that an additional 10 litres will be collected The first 5 hours can be thought of as being the measurement duration The total duration 5 2 hours of 7 hours can be thought of as being the working shift duration Therefore a projected total of 35 litres can be derived This is effectively measuring the volume of water for a certain duration 5 hours and then assuming that the flow rate of the water that would give this volume in that time has been occurring for the entire working shift 7 hours Once the projected volume is known in this case 35 litres this value can then be normalised to the 8 hour duration This is the same as saying what flow rate would be required to collect the sam
33. eseaa ence ssnevecsysectoosrsessemeusne esas nine coaexsecaeetscecenanuseceestseearessseeans 26 SPAM MOO eN INE greece eee en A 27 10 Alitwave Appia ee des cste oeeenes sed E ES E ES ES p EE een 28 11 DOW OG GUN eoe E E E EE 31 12 Casella Insight Data Management Software sssssesessesssrrrserrrresrresssrrresererssreressreresreressreeseerese 32 13 Jeer interiace B F124 arc g pc occore rn ere Pe ee 33 14 Ho ei gi gl orc bes 91 2161 ere UON oer eee enn ne ee eee 35 15 Glossary Of TEUM eeen e E EA 39 16 Projected and Normalised Noise Measurements ccccssseccccesscccceesecceeusececceececseesecessunecetseneses 41 17 Noise Measurements A Simple Analogy ccccccssseccceseccceenecceesesececseeceeeeeceeseeseceseusecetseneces 44 18 Examples of Possible Measurement ScenarioS ssssessessesesrrrssrrersrrrrsrrerssrrressreresrrresereresrrresene 45 19 Fault Finding amp DigSMOStICS sicicexeveserssucpiceexacnmew sauces ENE 49 20 DCE a a E E E E EEE 50 May 2015 Page 6 of 51 CASELLA 4 Typical Steps in a Noise Assessment Charge the Instrument See 5 3 Perform a walk through survey to onfigure the identify areas or tasks with problem Dosimeters to your noise required protocol See 7 5 Identify the standards and noise Remove the ordinance regulations for your windscreen amp Calibrate region See 6 2 Plan your personal noise exposure Fit to the wearer monitoring campaign See 5 1 Start
34. eshold Value is also used during the calculation of LAvg where any levels below the Threshold Value are not included For example if the Threshold Value is set to 80dB and the exchange rate is 5dB Q 5 If a one hour measurement was taken in an environment where the noise levels vary between 50 and 70OdB the sound level would never exceed the Threshold Value so the instrument would record no value for the LAvg However if the sound level exceeds the 80dB Threshold Value for only a few seconds only these seconds will contribute to the LAvg giving a level of around 40dB This is much lower than the actual ambient sound levels in the measured environment For a constant level noise signal above the threshold the LAvg values based on exchange rates of 3 or 5dB will be identical In an environment of changing noise levels then the energy will be accumulated according to 3 or 5dB exchange rates and so Lavg Q3 and Lavg Q5 will then differ with Lavg Q5 being the lower of the two results is the peak C weighted sound level is the daily personal noise exposure defined by ISO 1999 It is the LAeg normalised to an 8 hour Criterion Time i e a standard day For example if a noise measurement was made for 4 hours and the LAeq value was 90dB A the LEP d value would be calculated to be 87dB A as the measurement duration is half the 8 hour Criterion Time and the exchange rate is 3dB Also LEX 8Hr LEP d is calculated from the measured Sound
35. for D1 D2 and D3 The following tables detail the parameters available for display 7 6 1 North American Configurations LAvg based Data OSHA HC T80 C90 Q5 LAS LZPk LASmx Threshold 80dB North American LAvg T80 Q5 Criterion level 90dB OSHA Conservation TWA 8hr Projected TWA 8hr Exchange Rate 5dB of Hearing setup Dose T80 C90 Q5 Exceedance time based on Proj Dose T80 C90 Q5 8hr Projected work time 8 hours OSHA PEL T90 C90 Q5 LAS LZPk LASmx Threshold 90dB North American LAvg T90 Q5 Criterion level 90dB OSHA Personal TWA 8hr Projected TWA 8hr Exchange Rate 5dB Exposure Limit Dose T90 C90 Q5 Exceedance time based on Proj Dose T90 C90 Q5 Projected work time 8 hours May 2015 Page 22 of 51 CASELLA ACGIH T80 C85 Q3 LAS LZPk LASmx Threshold 80dB American Conference LAvg T80 Q3 Criterion level 85dB of Industrial TWA 8hr Projected TWA 8hr Exchange Rate 3dB Hygienists Dose T80 C85 Q3 Exceedance time based on Proj Dose T80 C85 Q3 Projected work time 8 hours MSHA T90 C90 Q5 LAS LZPk LASmx Threshold 90dB North American Mine LAvg T90 Q5 Criterion level 90dB Safety and Health TWA 8hr Projected TWA 8hr Exchange Rate 5dB Administration Dose T90 C90 Q5 Exceedance time based on Proj Dose T90 Q90 Q5 LAS gt 105dB Exceedance Time LAS gt 105dB Projected work time 8 hours 7 6 1 UK European Australian
36. he left L key to cancel the operation It will take a few seconds to automatically calibrate to 114 dB during which time a progress bar is displayed as shown Once the dBadge2 has successfully calibrated the CAL OK message will appear In the unlikely event an error message is displayed please refer to the Troubleshooting section The dBadgez2 is ready to take a measurement once the calibrator has been removed and the Windscreen re fitted You may need to consult local regulations or standards if the before and after calibration values differ by more than typically 0 5dB e g section 12 2 of ISO 9612 2009 suggests that the measurement is re taken Before starting a measurement run ensure the Windscreen is fitted according to Section 5 2 and ensure there is sufficient battery life and memory by looking at the default screen shown in Section 6 1 May 2015 Page 14 of 51 CASELLA If necessary charge the dBadge2 as described in Section 5 3 If the memory is full either clear it as described in Section 7 17 or download the data to Casella Insight data management software Note if the battery or memory available is less than one hour the run will not start Regardless of whether D1 D2 or D3 is selected for display purposes ALL parameters are calculated and stored simultaneously and can be viewed via Casella Insight data management software Timers are also available to automatically st
37. he main body of the dBadge2 An audible click confirms that it is securely in place May 2015 Page 10 of 51 CASELLA 5 3 Charging the dBadge2 Battery charging is via an intelligent combined docking station and 3 way charger part number 207078B required to download the dBadge2 memory and or to charge the internal Nickel Metal Hydride NiMH batteries lt consists of the docking station itself and a wall mounted power supply part number PC18 which requires an appropriate plug adaptor for the country of use a selection is supplied and connects to either of the 12V connectors on the rear of the docking station The docking pocket with the USB symbol is specifically reserved for downloading data but will also charge a dBadge2 For more information please refer to Section 12 but note that to download the docking station must be powered Ensure the PC18 power supply is connected and the supply is switched on a red LED on the docking station will illuminate to show that power is on When a dBadgez is placed in any pocket a fast charge will automatically start The dBadge2 will display the battery charging Status i e charging or full and the LED will flash red It will also show the percentage of battery charge and an estimation of battery usage time Note the estimation of usage time is based on the load conditions i e if octave band frequency analysis has been selected this will reduce the estimate
38. hes 8 hours and then increases over this as the shift exceeds 8 hours 90 0 80 0 TWA 8h dB TWA 8h dB 90 dB for 8 hours 0 2 4 6 8 10 12 Duration hours Figure 1 shows how the TWA 8h value changes as working shift changes May 2015 Page 41 of 51 CASELLA When the working shift is less than 8 hours the TWA 8h will be less than 90 dB E g if the working shift is only 5 hours then the TWA 8h will be 86 6 dB In Figure 2 this can be seen where the vertical green line representing the working shift duration crosses the blue line representing the TWA 8h as the shift duration increases This is shown by the dashed line _ a T _ lt o gt TWA 8h dB 90 dB for 8 hours 90 dB for 5 hours 2 4 6 Duration hours Figure 2 shows the TWA 8h value is less than 90 dB when working shift is 5 hours TWA 8h value is where blue line crosses green line Likewise if the working is shift is longer e g 10 hours then the resultant TWA 8h would be 91 6 dB This is shown in Figure 3 where once again the dashed line shows the TWA 8h at the level where the vertical line of the working shift green line would cross the blue line if extended TWA 8h dB TWA 8h dB 90 dB for 8 hours 90 dB for 10 hours 2 4 6 Duration hours Figure 3 shows the TWA 8h value is greater than 90 dB when working shift is 10 hours TWA 8h value is where blue line
39. in D1 D2 or D3 May 2015 Page 4 of 51 2 ee Pee May 2015 CASELLA Safety and Warnings This product is not approved for intrinsically safe operation and must not be used within hazardous areas The dBadge2 contains no user serviceable parts DO NOT open the product case this will invalidate the warranty Repair and battery replacement must be carried out by authorised service personnel only Use only the recommended CEL 252 microphone and when in normal use ensure you always fit the windscreen Only screw the microphone on finger tight and do not use pliers to remove it should it become overtightened Under no circumstances should this equipment be cleaned using a solvent based cleaner When Bluetooth is enabled care must be taken to avoid interference with sensitive equipment such as in medical aviation or safety critical environments Page 5 of 51 CASELLA 3 Contents Table of Contents L EOU ON en E E E 3 Z 2 NE ee Ge vr ee ene eee ee 5 3 LON ca ce ee ee ee ee ee 6 4 Typical Steps in a Noise ASSESSINNGNU so sssecsdscacacesccuencivorerecssaraseeebernieceseebsushieiavevsaareteuslonsvaastesyineneinarees 7 5 Getting to know your instrument and accessories cscccccssscccccesececcesecccceseceseusececeueceesenseeetsuaeces 8 o AE EA BA E I EE E E E 12 lT Conigurnne the 8 otc 0 1 eee ann Centr ane ane ns eens E ene ene een err ean 20 8 WSU VAM VV INN Se ccaisarss we etcseetec esos cem
40. interface N N dBadge dBadge dBadge2 Bluetooth Smart Wireless may be disabled in any version using the USB utility App May 2015 Page 38 of 51 CASELLA 15 Glossary of Terms A Weighting Acoustic Calibrator ANSI 1 25 1991 C Weighting Criterion Level CL Criterion Time CT dB A dB C dB Z Decibel dB is the standard weighting of the audible frequencies designed to approximate the response of the human ear to noise is an instrument that provides a reference noise source with a standard level and frequency This is used to calibrate and check the performance of sound level meters and noise dosimeters is the U S Standard for Noise Dosimeters is the frequency response of the human ear which varies with the sound intensity At high noise levels typically greater than 100 dB the ear s frequency response becomes flatter and is represented by the C weighting filter shape C weighting is primarily used for Peak measurements LCPk or for C weighted equivalent Level LCeq is the normalised eight hour average weighted sound level in dB that corresponds to the maximum permitted daily exposure or 100 noise dose is the time in hours used in the calculation of the Dose is the A weighted sound level in decibels is the C weighted sound level in decibels is the Z weighted sound level in decibels is the standard physical unit for measuring sound level and noise exposure
41. iscourage the wearer from tampering and is described in Section 7 12 ii Tap the IKTWaAVE icon to open the Airwave App 10 1 Bluetooth Connection amp Security With Bluetooth enabled Airwave compatible products will always broadcast their basic status and dashboard data and will be visible on any number of local mobile devices running the Airwave App However it should be noted that Airwave compatible instruments such as the dBadge2 will only accept connection and control requests from a single known or linked mobile device This prevents an unknown mobile device making a connection and then interrupting an active measurement run The truth table below shows the possible scenarios and outcomes dBadge2 Mode App Control App Screen View by Control by others others STOP Linked Device STOP Linked Device Linked Device Linked Device To link a mobile device with a specific instrument the Airwave App must be activated on that mobile device and then used to connect to a dBadge2 instrument whilst it is in stop mode The identity of the last mobile device to connect during stop mode is saved within the instrument and only this mobile device can connect to the instrument whilst a run is active May 2015 Page 28 of 51 CASELLA 10 2 The Broadcast Screen The dashboard shows the operating status plus the vital measurement results from all instruments in range Each instrument will update and broadcast
42. isplay on the screen The dBadge2 thus uses a multiple simulated dosimeter concept to display noise exposure values according to these differing standards and regulations The simulated dosimeters are referred to as D1 D2 and D3 throughout this user manual and they define the measurement parameters that are displayed on screen The primary dosimeter D1 provides any LAVG or LEQ based noise dose parameter plus a comprehensive set of related values LEQ based noise exposure assessment e g to European standards will typically only ever require the D1 dosimeter meaning D2 and D3 may be switched off in the configuration menu available on power up Dosimeters D2 and D3 allow the display of additional LAVG based noise dose values based on combinations of Threshold T Criterion C and Exchange rate Q factor As an example a US customer may wish to simultaneously compare noise exposure data based upon the OSHA Hearing Conservation HC OSHA Personal Exposure Limit PEL and ACGIH requirements A user defined custom set up is also available for those who have their own internal standards that may exceed the exposure requirements laid down by regulations This custom set up is available from Casella Insight It should be noted that for every measurement run the dBadge2 records a comprehensive data set which means that you can retrospectively analyse the results within Casella Insight regardless of what was displayed on the instrument
43. its dashboard data approximately every 3 seconds When the Airwave app is first opened it will automatically scan for any Casella Airwave compatible products within range typically up to 25m line of sight with no solid obstructions in the path For an instrument to appear in the list it must of course have the Bluetooth feature enabled within its power up configuration menu see Section 7 16 lt STOP or REFRESH a scan for instruments Instrument Stop Pause S N 09990010 _ Run Duration 00 00 21 Battery Status Kern LAeq 66 2 dB LCpk 92 2 dB Status LZpk 92 2 dB LEX 8h 34 9 dB LAF dB Bluetooth Signal Strength Display of Summary Data for Dosimeter D1 To save power the Airwave App stops scanning once all instruments within range have been detected To scan for new instruments press REFRESH in the top right of the mobile device display 10 3 Monitor Screen From the dashboard view tap a specific instrument to initiate a direct connection with that instrument Whilst connected to an instrument a comprehensive set of measurement results as defined by the instrument s setup for D1 D2 and D8 will be shown where selected Note this may require you to scroll up and down to view all available data May 2015 Page 29 of 51 CASELLA Run State 1 Proj Dose 52 0 Battery Hours Remaining 97 Memory Free 100 LAVG 41 0dB Run Start Time 2015 02 19 12 34 56 TWA 8Hrs 54 0dB Run Du
44. ly on which will reduce battery life or will timeout after the selected interval of 5 10 20 seconds 1 or 5 minutes 7 5 Selecting Dosimeter Setups dBadge2 has up to 3 simultaneous dosimeters D1 D2 and D3 which only determine what is displayed on screen and not what is calculated and saved to memory for later download and analysis The primary Dosimeter D1 cannot be disabled and may be configured to display any one of six configurations by choosing from the alternatives as shown below and explained in more detail in Section 7 6 There is also a fully custom configurable option which is achieved using Casella Insight data management software Fa fae fee Pe Me or t J D1 Custom 0 oi LEQ 80 090 05 T90 090 05 780 085 0 90 C90 0 MySetup 1 OSHAHC OSHAPEL CGI ig T 0 085 05 Additional dosimeters D2 and D3 may be selected to display any of the other available configurations Note that visual alarms are based only on D1 values May 2015 Page 21 of 51 CASELLA Customers in the US may wish to Select D2 for example to compare OSHA HC in Dosimeter D1 with say OSHA PEL 03 t uz i De p2 D2 Gusiom F 80 090 05 T90 C 90 05 T80 C85 03 T90 C90 05 MySetup 2 OSHA HC OSHA PEL ACGIH MSHA 180 085 05 Select D3 if you require a further comparison with say ACGIH m D3 m rai Son 80 090 005 T90 C90 05 180 085 03 TS0 C90 05 ia OSHAHC OSHA PEL ACGI MSHA TRO C85 O5 7 6 Pre defined Dosimeter Setups
45. nd z stopping a run manually press the left L key to PROG Timer select fixed or programmable timers The latter are TIMERS OFF Meet set using Casella Insight data management software which will start and stop the dBadge2 automatically whilst the fixed timer will halt a run after 8 hours initiated manually as per Section 6 3 7 16 Bluetooth dBadge2 connects to the Airwave App using Bluetooth low energy This may be permanently disabled using the Upgrade Utility supplied and this screen will no longer appear as an option Press the right R key to accept or left L key to change 7 17 Clear Memory To prevent inadvertently clearing the memory the keys are reversed i e Press the left L key o accept and the right R key to decline but there is an additional screen to check that you wish to progress 2 SURE 3 since once cleared all stored runs will be lost 7 18 Cycle through configuration These final screens provide an opportunity to cycle back through the configuration menu or proceed to the start up screens as per Section 6 1 8 Visual Alarm Warnings The dBadge2 has the ability to define colour coded and LED visual alarm warnings as selectable in Section 7 11 based on up to two source data parameters LAS LAeq lt LCPk LZPk LAVG TWA Projected TWA Lepd Projected Lepd LEX8h Projected LEX 8h Lower and upper trigger levels may be specified for each alarm When a data parameter
46. orking day together with the time history and other tagged data To create or tailor a report simply select the view icon to select your personal report template and it s just a one button press to generate a report As an audit trail original and modified data can be specified The Casella website offers a number of How to videos explaining the various features and operations within the software May 2015 Page 32 of 51 CASELLA 13 User Interface Diagrams 13 1 Operation Screens lnitialisation Screens ven mesages Battery Memory Satus MTC H ON F 1007 01 00 SINO123456 8Hrs MEMORY rut PRESS _ gt i gt Lee _ gt CHARGE e LEFT l Pro IS KEY Model Fim ware Version User Te xt type Intemal Clocktime Fields ICONS Audio Event Mode Enabled Octaves Enabled Bluetooth Enabled _ n Fro Model Only a DUR 02 59 02 JMBDOSE 34 4 BLAG 674 cB SIOP Mode arc oe 56 09 DOSE 642 Over Load Symbol AUDIO 90 mini LAS 65 4dB BMP DCSE 78 4 MLZPK 874 CE BE Wash go 9 cB EEE 1 Optional D2 D2 Resultsfrom Octave Data R Battery and Time D EA Apply 1kHz SIARTING A e gt Calibrator MEASUREMENT Calibration RUN gaH Pro Mode Only E E Record Audio lt Note Optional _ A CAL zn Delayed Timer Sart Optional Adjust gt 6dB SIMULTANEOUSLY PRESS LEFT amp RIGHTKEYS RUN Mode Large Font Mode p JAA a A D gt D3 h80 C8505 s RUN Mode f
47. ple during the worker s break i During a Pause all time history profile data is recorded and a PAUSE On Pause Event marker will be saved in the data set Cumulative values will represent the measured data and will exclude the paused intervals Press the right R key to accept or left L to change 7 10 Event Mode Available in Plus and Pro Models Only An audio recording of triggered events when certain criteria are exceeded which can be set within Casella Insight data management software Press the right R key to accept or left L key to change 7 11 Alarm criteria can be set within Casella Insight see Section 8 Press the right R key to accept or left L key to change 7 12 DLT Selecting Auto Lock locks the display in run mode and limits Y the data presented see Section 6 4 Press the right R key AUTO LOCK to accept or left L to change 7 13 Large Font mode Data can be presented in small multiple values or large single value fonts Press the right R key to accept or left L key to change Laf 1230 Lopk 130 4 dB 7 14 Autoscroll If selected the display will automatically scroll from ae one screen to the next otherwise the screen has to be advanced manually Press the right R key to AUTO SCROLL accept or left L key to change May 2015 Page 25 of 51 CASELLA 7 15 Timers To select a timed run rather than starting a
48. presented by the red line ii Sf SS SSS SSS eS SS a Scenario3 Criterion duration Tc 8 hours measurement duration Tm 12 hours shift duration Ts 12 hours The noise which the worker is exposed to is measured for 12 hours which is the entire shift duration May 2015 Page 46 of 51 CASELLA 88 0 Hours l2 Figure 11 shows the 12 hour measurement It is now possible to calculate the value normalised to 8 hours i e TWA 8h This is effectively achieved by keeping the measured energy represented by the blue line constant but changing the duration from 12 hours to 8 hours This will have the effect of the TWA 8h value being higher than the 12 hour Lavg value Therefore a 12 hour Lavg of 88 0 dB is equivalent to an 8 hour Lavg of 90 9 dB Hours 8 1 Figure 12 shows the 12 hour measurement blue line the TWA 8h is shown by the red line The measured energy represented by the blue line is equal to the measured energy represented by the red line Scenario 4 Criterion duration Tc 8 hours measurement duration Tm 10 hours shift duration Ts 12 hours The noise which the worker is exposed to is measured for 10 hours which is the entire shift duration However the worker is exposed to the same noise levels for the remainder of the shift such that the worker is exposed to this noise level for the entire 12 hours B 53 0 Howrs 10 Figure 13 shows the 10 hour measurement May 2015 Page 47 of
49. r LZpk 92 4 dB LASmx 98 3 dB May 2015 Page 18 of 51 CASELLA If octave band mode has been enabled on the Pro Model additional screens and the cursor operates as per Section 6 3 6 8 Switching off the dBadge2 To switch off the dBadge2 press and hold the left L key for the duration of the 3 second 3 2 1 countdown releasing during the countdown will cease the operation Whilst in a measurement run pressing and holding the left L key for 10 seconds will force the dBadge to switch off irrespective of whether the Auto Lock has been enabled This system reset feature allows the dBadge2 to be switched off in the unlikely event that the system hangs up May 2015 Page 19 of 51 CASELLA T Configuring the dBadge2 The configuration menu is accessed by pressing the right R key immediately after the dBadge starts to run through its power up screens as per Section 6 1 The configuration menu is used to Select language Adjust the date and time Set the display s contrast Set the display timeout Specify the data to be displayed for D1 and select deselect D2 and or D3 and specify the data to be displayed Select deselect the capture of Audio Notes Select deselect real time octave band analysis Select deselect the Pause function Select deselect audio event capture Select deselect visual alarms Select deselect Auto Lock of the keys select large or small font select deselect
50. ration 0 00 41 Projected TWA 8Hrs 54 0dB Dose 53 0 LAF 60 0dB Proj Dose 9999E9 LAEQ 66 1dB LCPk 92 2dB LAVG 49 0dB LAFmx 76 2dB TWA 8Hrs 45 0dB LEX8Hrs 37 7dB Projected TWA 8Hrs 57 0dB Proj LEX8Hrs 66 1dB Dose 58 0 Proj Dose 41 0 Example data is shown for ISO D1 settings left and OSHA D1 amp D2 right From this screen it is also possible to Start Stop or Pause a measurement run Touch and hold the appropriate icon in the lower part of the mobile device s display for 3 seconds during which time a countdown will be displayed If a measurement run is started and the dBdage2 display has timed out the display will turn on to indicate that a run has started but time out as per the setting in Section 7 4 and similarly when a run is stopped 10 4 Connection menu MENU shown top right in the monitor screen contains a number of options to facilitate the convenient transfer of the measurement results via the device s email or clipboard services May 2015 Page 30 of 51 CASELLA 11 Download Utility The download utility is a simple download solution for those who just want their data in an XLS format It is located in the Software amp Support section of the dBadge Product Support page of the Casella website and can be installed by clicking on the setup icon and following the self explanatory installation instructions Click on the program icon to launch the program and tool tips will explain the functionality of each
51. rdless of the duration Using the standard 90 dB for 8 hours gives 100 dose then changing the duration to 12 hours results in an allowable level of 97 1 dB which keeps the 100 dose the same May 2015 Page 48 of 51 CASELLA dB 7 Howrs Figure 16 when the standard TWA 8h is calculated the value effectively increases as the measurement duration increases 10 Figure 17 when the projected TWA 8h is calculated the value effectively equals the Lavg whilst the measurement time is not greater than 8 hours Once the duration exceeds 8 hours then the TWA 8h will start increasing 19 Fault Finding amp Diagnostics 19 1 Cycle Battery Mode Unfortunately rechargeable Batteries do not last for ever and their storage capacity will reduce depending on usage storage conditions and age The dBadgez includes a battery diagnostic check which fully cycles the battery and determines it storage performance To cycle battery mode is only available during the first 10 seconds of the unit being placed in the charger To initiate press and hold the right R key for 2 seconds The dBadge2 will show a confirmation screen Press the right R key again to confirm The cycle battery mode will then commence If there is no confirmation within 10 seconds the mode will be exited and standard charging will continue During cycle mode the instrument firstly performs a complete discharge Once fully discharged a full charg
52. red level is projected forward using the assumption that the noise level is the same as that measured during the 5 hour measurement This means that the Lavg measured over the hours would have the same value after 8 hours This results in a projected TWA 8h being equal to the measured Lavg i e Proj TWA 8h 88 0 dB May 2015 Page 45 of 51 CASELLA Scenario 2 Criterion duration Tc 8 hours measurement duration Tm 5 hours shift duration Ts 5 hours The noise which the worker is exposed to is measured for 5 hours which is the entire shift duration This is the same situation as a worker who has a shift duration of 8 hours but is only exposed to noise during 5 hours of this shift dB as 0 Hours SH Figure 8 shows the 5 hour measurement 88 0 Howrs 5 g Figure 9 shows the 5 hour measurement blue line there is no further noise exposure for the remainder of the 8 hours red line In order to calculate the TWA 8h it is necessary to keep the measured energy represented by the blue line constant but change the duration from 5 hours to 8 hours This will result in the level decreasing In this case a worker exposed to 88 0 dB for 5 hours is equivalent to one exposed to 84 6 dB over 8 hours therefore normalised to 8 hours Hours 5 Figure 10 shows the 5 hour measurement blue line the TWA 8h is shown by the red line The measured energy represented by the blue line is equal to the measured energy re
53. rge or less than 9 hours memory based on standard usage Press any key to return to the default screen or alternatively these error messages will time out after 30 seconds Please either re charge download and or erase data as required before continuing with a new measurement run 6 2 Calibrating the dBadge2 It is best practice and often mandatory to field calibrate each dBadge2 both before and after use The dBadge2 records calibration levels and times which can be viewed later in Casella Insight data management software which will also allow the target calibration level to be set as shown on the calibrator s own calibration certificate nominally 114 0dB May 2015 Page 13 of 51 CASELLA Note the dBadgez2 will not enter the calibration mode if a measurement run is taking place If a run is in progress stop the run according to Section 6 5 The windscreen should be removed prior to calibration Please refer to Section 5 2 Push the CEL 120 2 or other approved acoustic calibrator over the microphone as shown The calibrator should be pushed on without twisting which may loosen or overtighten the microphone until fully home and switched on The dBadge2 will automatically recognise a 1kHz calibration tone and enter the calibration mode 7 Fy Y 114 3dB 114 2dB CAL OK 114 0dB CAL ERROR Adjust gt 6dB 6 3 Starting a Measurement Run Press the right R key to confirm you wish to calibrate or t
54. s NIHL remains one of the world s leading occupational diseases and it has been estimated that 16 of global hearing loss is due to occupational noise exposure It is acute in the mining construction oil amp gas sectors but also in a wide variety of industrial manufacturing and other commercial activities where the cumulative effects of excessive noise exposure could lead to this avoidable disease Noise exposure measurements using a personal noise dosimeter such as dBadge2 is a recognised method of making an exposure assessment as required by regulations and or standards such as CFR 1910 95 Occupational noise exposure USA IS09612 2009 Acoustics Determination of occupational noise exposure Engineering method HSE Document L108 Controlling Noise at Work Guidance on Regulations The original dBadge proved an invaluable tool in monitoring personal exposure but dBadge2 is the next generation taking all of those features and usability and building on them a true evolution New features of the dBadgez2 include Full colour display with colour coded screens and alarms Bluetooth 4 0 wireless connectivity Airwave App for mobile devices such as smartphones amp tablets Multiple simulated dosimeters termed D1 D2 amp D3 Motion sensor 1 second time history profiling Pause function Recording of audio events Plus amp Pro models Real time octave band frequency analysis Pro model only USB download via Docking Station an
55. section of the Casella website as detailed in Sections 10 and 12 of this handbook respectively May 2015 Page 8 of 51 CASELLA 5 1 Mounting the dBadge2 The recommended location for mounting a personal noise exposure meter is normally ina position close to the ear 10 15cm The dBadge2 should therefore be mounted on the apex of the shoulder to avoid reflections from the head which might otherwise affect the measurements Consult your local Legislation and Standards for more information Upon delivery the dBadge2 will be fitted with crocodile style mounting clips on flexible webbing to aid positioning The clip assembly simply snaps in place but are designed to fail safe i e the tab on the black plastic part that mates with the main body of the instrument has to be lifted pulled to remove it in normal use it would tend to be pressed pushed Should the clip assembly require replacement hold the dBadge2 with the back uppermost in one hand and with the other hand simultaneously lift the tab with a finger whilst pulling the clip away from the dBadge2 body There is a knack to this operation to deter tampering A pack of spare clips 5 pairs is available part number DB2CLIPS When refitting the clip assembly ensure that the tab is locked by pushing it into place and pull on the clip assembly to check that it is secured A pin attachment part number CL63 is also available which can be secured directly via the clip or be attached
56. the Run See 6 3 Observe amp Note Key Events amp Activities Stop the Run See 6 5 Remove from the wearer Recheck the calibration See 6 2 Download the data See 11 amp 12 Develop Corrective Actions as necessary V UVY VY JVI J VJ Analyse the data and create a report May 2015 Page 7 of 51 CASELLA 5 Getting to know your instrument and accessories When delivered dBadge2 will have its microphone windscreen and mounting clips already assembled The following spares are available a replacement pack of 5 Windscreens part number DB2WS and 5 pairs of clips part number DB2CLIPS The dBadge serial number is located on the rear label and should be quoted in any communication with Technical Support or Service Windscreen Left L Key OO lt Mounting Clip Right R Key Status Indicator Display By Mounting Clip CASELLA lA sm 4351234 IEC 61252 2002 ANSI 51 25 1991 CE X www casellasolutions com If purchased as a complete measuring kit it will also come supplied with a CEL 120 2 Acoustic calibrator amp 2 off AAA batteries combined Docking Station amp charger PC18 Universal Mains power supply CMC51 USB cable Casella Insight data management software supplied on a memory stick and kit case suitable for up to 10 dBadge2 instruments and 3 Docking Stations The Airwave App and download utility are available for download from the Support
57. ual the TWA 8h The projected values are only appropriate when the measurement duration is less than the full working shift duration When the measurement duration occurs over the entire working shift then the standard TWA 8h as calculated by the instrument would be used As an example assume that a working shift is 7 hours However the actual measurement was only carried out over 5 hours At the end of the 5 hour measurement the Lavg was 90 0 dB It is assumed that this level remains constant for the remainder of the 7 hour working shift Therefore the measurement is projected forward to the end of the working shift This level 90 0 dB for 7 hours can now be used to calculate the TWA 8h which results in 89 0 dB oo fd TWA 8h dB a 3 oD gt 00 gt Projected Duration Working Shift Measurement Duration Duration hours Figure 4 shows a measurement of 5 hours green line this is then projected forward to the end of the 7 hour working shift red line where the projected value crosses the original TWA 8h blue line is the actual TWA 8h shown by the dashed line NOTE this is based on using levels of 90 dB and are only for illustration In practice the TWA 8h would be calculated mathematically from the Lavg at the end of the projected 7 hour working shift Another example is using a working shift of 10 hours This time a measurement was carried out for
58. unt LCpk gt 140 count LAFmx Time LAFmin Time LASmx Time LASmin Time LAlmx Time LAImin Time LAE Cumulative Motion Index Profile Time history Data Sets The following time history data is saved at an interval of once a second for every run and are available following download LCpk LZpk LAeq LCeq LAvg Q5 T 0 LAvg Q3 T 0 LAFmx LASmx May 2015 Page 37 of 51 CASELLA Motion Index 0 1 status of motion detection Octave Analysis Pro Model Only Bluetooth Connectivity Display User Interface Model Variants H M L C A Programmable delay timer Fixed run timer Pause function Wireless Time history Audio recording Octave band Nine Octave bands with centre frequencies from 31 5Hz to 8kHz are provided Octave filter results may be A or Z weighted LEQ nHz and Lmax nHz cumulative Octave data is saved for each run A Fast or Slow time constant can be selected for the maximum Sound Pressure Level parameter All models support wireless connection via Bluetooth 4 0 Low energy or Smart This connectivity is compatible with mobile and PC devices that support Bluetooth 4 0 only TX power 0 dBm to 23 dBm Receiver sensitivity 93 dBm Range Typically gt 25m line of sight and depending on local RF conditions The display is a 96x64 dots full colour OLED display lt wakes upon key press or an alarm event Brightness is adjustable Two button operation menu driven user
Download Pdf Manuals
Related Search