CEL-350 dBadge Users Manual HB3323-02
Contents
1. The CEL 6352 crocodile mounting clips are fitted to the CEL 350 dBadge upon delivery as they can be fitted to virtually any clothing type The CEL 6352 is used for attaching the CEL 350 to clothing and should be used where piercing the employees clothing is not desired Illustrations of the CEL 6351 and CEL 6352 mounting clips are shown in Figure 24 Casella CEL 350 dBadge Users Handbook Page 26 CASELLA CEL CEL 6351 Pin Mounting Kit CEL 6352 Crocodile Clip Mounting Kit Front Rear Figure 24 Note when any of the mounting clips are ordered they are supplied in packs of 5 i e enough to fit 5 dBadge units Casella CEL 350 dBadge Users Handbook Page 27 CASELLA CEL 6 3 CEL 6353 Harness Mounting Kit The CEL 6353 is used for attaching the CEL 350 to the D8147 harness or an existing harness that the employee may wear The CEL 6353 harness kit and the D8147 are pictured in Figure 25 CEL 6353 Harness Mounting Kit CEL 6353 Harness Mounting Kit Fitted to D8147 Harness Figure 25 6 4 CEL 6354 Hard Hat Mounting Kit The CEL 6354 hard hat mounting kit can be used to fit the CEL 350 dBadge to most hard hats It consists of a loop with four hooks which loop over the rim of the hard hat The CEL 6351 pin clips are used to connect the hard hart mounting kit to the dBadge CEL 6354 Hard Hat CEL 6354 Fitted to a Mounting Kit Hard Hat Figure 26 Casella CEL 350 dBadge Users Handbook Page 282. CASELLA CEL 7 TECHNICAL SPECIFICATION 7 1 Specification Sound Exposure Meter Dosimeter Standards IEC 61252 2002 BS EN 61252 1997 ANSI 1 25 1992 for dosimeters and sound exposure meters The CEL 350 conforms to the requirements for EMC emissions and immunity as specified in IEC 61000 4 2 6 1 61000 4 6 6 2 61000 4 3 CISPR 61000 6 3 Electromagnetic and electrostatic compatibility The CEL 350 was tested with a pink noise acoustic source of 85dB and complies with the immunity requirements of clause 15 IEC 61252 No additional devices are connected during normal use There is no degradation in performance or loss of functionality following the application of electrostatic discharges All settings and orientations of the instrument have similar radio frequency emissions These radio frequency emissions are within the specified limits of this standard All modes of operation have similar immunity to power and radio frequency fields Linear Operating Range 65 0 140 3dB A RMS Peak Measurement Range 95 0 143 3dB C or Z Sound exposure Range 0 01 99999 Pa Hours 0 01 99999 Freq Weightings A C and Z Type 2 Time Weightings Fast Slow and Impulse Amplitude Q 3 or Q 5dB exchange rates Threshold 70 90GB in 1dB steps via dB35 software Criterion 70 90GB in 1dB steps via dB35 software Clock Accuracy better than 1min per month Under Range 1dB below the bottom of the range Indication Casella
3. d will be lower than the Leq when the measurement duration is less than 8 hours equal to the Leq for a measurement of 8 hours higher than the Leq for measurements longer than 8 hours 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 3 dB Peak The maximum level in dB reached by the sound pressure at any instant during a measurement period With the dBadge Peak is measured with either C Z or A weighting It is the true peak level of the pressure wave which should not be confused with the highest sound pressure level termed Lmax Casella CEL 350 dBadge Users Handbook Page 35 CASELLA CEL Slow Time Weighting A standard time weighting applied by the noise measurement instrument SPL The sound pressure level This is the basic physical measure of noise and is normally expressed in dB Threshold A threshold below which sound levels are excluded from calculation OSHA measurements use an 80 GB threshold and call for a hearing conservation program to be implemented when the eight hour TWA exceeds 85 dB 50 dose TWA This is a parameter used in OSHA measurements The time weighted average is the daily personal exposure level calculated from the LAVG and measurement duration Z Weighting Effectively this is a linear or un weighted measurement
4. exposure data Casella CEL 350 dBadge Users Handbook Page 21 CASELLA CEL By pressing the R key when on any of these screens the display will stop cycling for a period of 5 seconds 5 6 Configuration Menu The configuration menu is accessed by holding the R key down whilst switching on the dBadge L key see Figure 22 CONTRAST e d Y LANGUAGE English French ENGLISH d German Italian Spanish Portuguese DISPLAY MODE OSHA ISO gt ISO Y dB ALARMS Yes No gt YES d SURE wes CLEAR MEMORY Yes No II lt CENO Yes No Figure 22 The first configuration screen to be displayed is the contrast menu For each option within these menus press the L key to adjust what is on the screen then press R d to confirm and move to next screen On the language screen the available options are English Spanish French Italian German and Portuguese For further details about the Display Mode see section 5 7 Casella CEL 350 dBadge Users Handbook Page 22 CASELLA CEL The Alarms can be switched either on or off using this menu but the alarm levels are set using the dB35 software For further details of the Alarms see section 5 8 When on the clear memory screen the memory can be cleared by first pressing the L key to change the No option on the screen to Yes Then press the R key to confirm
5. that may have been displayed The necessary adjustments or repairs will be carried out and the instrument returned as soon as possible After the warranty has expired except on approved accounts service work is undertaken against quotations and all packing and transit costs are charged extra Casella CEL 350 dBadge Users Handbook Page 31 CASELLA CEL 9 TROUBLESHOOTING Symptom Possible Cause Suggested Solution The aBadge will not switch on The dBadge batteries are flat Charge the dBadge unit see section 4 Incorrect time or date is displayed when turning on The time and date has not been set or PC clock is set Connect the dBadge to dB35 software to set time and date refer to dB35 the dBadge incorrectly manual ensuring PC clock is set correctly Cal Error Calibrator is not Switch on calibrator see Message switched on calibrator manual appears when Calibrator is Push calibrator firmly over calibrating incorrectly fitted microphone dBadge dBadge will not enter calibration mode dBadge is not switched on or a measurement is taking place Ensure dBadge is switched on ifa measurement run is taking place see section 5 4 to stop the measurement Battery Fail Batteries are flat Charge the dBadge see message section 4 1 appears on display Memory Full All memory has Download measurement message been used runs to dB35 or clear app
6. the Play symbol gt will appear in the top left of the screen The display will cycle between 2 screens The first displays instantaneous sound pressure level SPL values and the duration of the measurement run so far The second displays the status of the memory and battery The screens are displayed below in Figure 17 K LAF 112 3 DUR 07 45 12 E IS 1 Burs MEMORY 145xrs Figure 17 Casella CEL 350 dBadge Users Handbook Page 18 CASELLA CEL Casella CEL recommends the dBadge is locked to prevent the wearer from tampering with the unit To do this press and hold the R key whilst pressing the L key 3 times as shown in Figure 18 2 Press 3 times 1 Press and hold dBadge CASELAS CEL 350 Figure 18 This will lock the keypad so any random presses of keys will not accidentally effect the measurement The display of the CEL 350 will also change so as not to show any SPL values This removes the temptation to shout into the microphone as it has no visual effect A padlock symbol S will be shown in the bottom left of the screen to indicate the keypad is locked as shown in Figure 19 gt DURATION 07 55 12 Figure 19 If during a measurement run the remaining battery or memory capacity falls below 2 hours the red LED will flash and the warning icon will be shown on the display Casella CEL 350 dBadge Users Handbook Page 19 CASELLA CEL 5 4 Stopping A Measurement Run If the CE
7. time weighting LAS The A weighted sound level measured with Slow time weighting LASmax The maximum A weighted sound level measured with Slow time weighting Casella CEL 350 dBadge Users Handbook Page 34 CASELLA CEL LAVG This is a parameter used 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 such as for measurements used for the OSHA Hearing Conservation Amendment with Q 5 A Threshold value is used during the calculation of LAVG where any levels below the threshold are not included For example assume the threshold level 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 70dB the sound level would never exceed the Threshold so the instrument would record no value for the LAVG However if the sound level exceeds the 80dB Threshold for only a few seconds only these seconds will contribute to the LAVG giving a level of around 40dB which is much lower than the actual ambient sound levels in the measured environment LCpeak The peak C weighted sound level LER d This is the daily personal noise exposure defined by ISO 1999 It is the LAeq normalised to an 8 hour Criterion Time i e a standard day Assuming the noise level for the rest of the 8 hour reference period is quiet the LEP
8. A second screen will appear requesting confirmation that you wish to delete the memory Use the L key to change the option to Yes and if you wish to delete the memory press H d to confirm Once all the options within the configuration menu have been set the display will return to the standard screens as described in section 5 5 7 Display Mode The selected display mode specifies which key results are displayed on the screen upon completion of a measurement run Regardless of which display mode is set the dBadge measures ALL parameters during every measurement run Once downloaded to the dB35 software all measured data can be viewed The key displayed results set can be either configured to ISO for Europe or OSHA for U S A as shown in the table below Projected Dose DATA ISO Sons Instantaneous SPL LAF LAS Time Averaged Parameter Aeq Laavg Peak Value LCpeak LZpeak Dose Value Pa Hours Dose Projected Dose For a definition of each of these terms please see Appendix 1 section 10 1 Note that for the OSHA data the Laavg and the dose data use a threshold of 80dB and a criterion value of 90dB For a full list of all the measurement parameters available from dB35 please refer to Appendix 1 section 10 2 Casella CEL 350 dBadge Users Handbook Page 23 5 8 Alarm Settings CASELLA CEL Alarm levels can be set within the dB35 software based on action levels for
9. AHr 1 2AAA cylindrical Nickel metal Hydride cells Two exposed contacts are located on the rear of the product for connection to a purpose designed drop in charger system The charge contacts are protected from reverse current flow by three blocking diodes The unit is not to be charged within a hazardous area Battery charging is only permitted using charger model number CEL 6362 Noise is monitored using a screw on VG back electret microphone this is a high impedance capacitive type sensor which can be removed for replacement or product testing Measured noise data is downloaded to a PC in the non Hazardous area using an infrared cable free communication link DESCRIPTIVE DOCUMENTS Drawings Refer to Certificate Annexe Associated Sira Reports and Certificate History Report number 0 Be er Comment Oe 26 April 2007 R52A15494A The release of prime certificate SPECIAL CONDITIONS FOR SAFE USE denoted by X after the certificate number Parts of the enclosure are non conducting and may generate an ignition capable level of electrostatic charge under certain extreme conditions The user should ensure that the equipment is not installed or used in a location where it may be subjected to external conditions such as high pressure steam which might cause a build up of electrostatic charge on non conducting surfaces Additionally cleaning of the equipment should be done only with a damp cloth The dBadge Nois
10. Badge The CEL 6362 consists of the charger base part number 193102B 01 and the PC18 mains power supply unit PSU The PSU will require fitting with an appropriate plug connector Supplied for the country of use Figure 3 Note that charger base 193102B 01 is for use with the CEL 350 and the CEL 350 IS The previous version of the charger base 193038B 01 can only be used with the CEL 350 and NOT the CEL 350 IS Note that all versions of the dBadge should only be Casella CEL 350 dBadge Users Handbook Page 8 CASELLA CEL charged in non hazardous areas in the absence of any flammable atmospheres 3 4 The Windshield During use it is essential the dBadge is fitted with the CEL 6356 windshield supplied To calibrate the dBadge it is necessary to remove the windshield to gain access to the microphone To remove the windshield twist the black plastic ring below the foam anti clockwise and lift the windshield to remove Figure 4 Once the CEL 350 dBadge has been calibrated section 5 2 refit the windshield by placing the windshield back into the body of the dBadge and twisting clockwise as shown previously in Figure 4 Casella CEL 350 dBadge Users Handbook Page 9 CASELLA CEL 4 CHARGING THE CEL 350 4 1 Charging The CEL 350 dBadge uses internal NiMH batteries Ensure the CEL 350 is fully charged prior to use by placing in the charger as shown in Figure 5 Note the CEL 350 will fit into charger units regar
11. CEL 350 dBadge Users Handbook Page 29 CASELLA CEL Overload Indication 140 4dB RMS i e 0 1dB above the top of the range Peak Overload Value 143 4dB Peak Linear i e 3 1dB above the top of the range Stabilisation Time 3 seconds after power up Operating Environment Temperature 0 C to 40 C Pressure 65 108kPa Humidity 0 5dB 30 90 non condensing Magnetic Fields Negligible Storage Environment Temperature 10 C to 50 C Battery Internal NiMH 32 hour battery life Charge Time Less than 90 minutes from discharged Dimensions mm in 72x47x52 2 8x1 8x2 0 Weight g oz 68 2 4 The CEL 350 IS Intrinsically Safe dBadge is labelled with the following I MT I 1G EEx ia IIC T4 EExial Ta 20 C to 40 C 7 2 Microphone Specification CEL 252 Classification Type 2 Nominal Open Circuit Sensitivity 250Hz 280B 3 0dB 30mV Pa Polarization voltage OV Capacitance polarized 250Hz 11 15pF Operating temperature range 0 to 40 C Cartridge thermal noise 25dB A Dimensions IEC 61094 4 Type WS 2 Casella CEL 350 dBadge Users Handbook Page 30 CASELLA CEL 8 SERVICING AND WARRANTY ARRANGEMENTS To ensure conformity with the specification this instrument is thoroughly inspected and it s accuracy verified prior to dispatch All technical information is filed under the instrument serial number which should be quoted in any correspondence The manufactu
12. Casella CEL 350 dBadge Users Handbook Page 14 CASELLA CEL 5 2 Calibration It is important to calibrate each dBadge before and after use in accordance with workplace noise regulations The dBadge records calibration levels and times which can be viewed later on dB35 software Note that the dBadge will not enter calibration mode if a measurement run is taking place If a run is in progress stop the run according to section 5 4 The windshield should be removed prior to calibration refer to section 3 4 Push the CEL 110 2 acoustic calibrator over the microphone as shown in Figure 11 The calibrator should be pushed on without twisting Figure 11 The CEL 350 dBadge will automatically recognise a 1kHz calibration tone is present and display the screen shown in Figure 12 Casella CEL 350 dBadge Users Handbook Page 15 CASELLA CEL CALIBRATE X 114 008 d Figure 12 Press the R d key to confirm you wish to calibrate the unit it will take a few seconds to calibrate automatically to 114 0dB during which time a progress bar will be displayed as shown in Figure 13 CALIBRATING Cl CAL OK 114 0 cB Figure 13 Once the unit has successfully calibrated the Cal OK message will appear In the unlikely event an error message is displayed as shown in Figure 14 please refer to Troubleshooting section CAL ERROR Figure 14 The CEL 350 is ready to take a measurement once the calibr
13. GS CONSULTANTS Y 423 JUL 05 13 4503 Figure 8 The next screen shows the remaining battery life and memory as shown in Figure 9 The caution symbol will be displayed on the left of the display if remaining memory or battery life are under 2 hours The next screens show the instantaneous sound pressure level SPL currently being measured by the microphone and the current clock time set within the instrument Casella CEL 350 dBadge Users Handbook Page 13 CASELLA CEL THs MEMORY BU Urs CD 13 45 03 F LAF 112 3 Figure 9 The subsequent screens will cycle through results from the last measurement run as shown in Figure 10 Values shown will be dependent on whether the CEL 350 is configured to display ISO or OSHA parameters see sections 5 6 amp 5 7 ISO VIEW DURATION LAEQ 89 9 PA2 Hrs PROJ DOSE 07 45 12 LCPK 101 4 dB 3 20 352 5 OSHA VIEW DURATION LAVG 111 4 OSHA DOSE PROJ DOSE 07 59 32 LZPK 119 4 dB 114 3 H 175 316 Figure 10 The over range symbol A will be shown if the CEL 350 has been exposed to noise over the linear operating range The screens will continue to automatically cycle through as shown in Figure 9 and 10 until another action is performed Pressing the R key will stop the screens cycling for 5 seconds By screens can also be manually cycled through by pressing the R key repeatedly Note that if the memory is currently empty the screens shown in Figure 10 will not be shown
14. In the dBadge system it is used for the measurement of peak sound pressure level against the OSHA standard Casella CEL 350 dBadge Users Handbook Page 36 CASELLA CEL 10 2 Measured Parameters Regardless of which display mode is selected ISO or OSHA ALL parameters are stored simultaneously and can be viewed via dB35 software The CEL 350 also stores other parameters and 2 dose histograms This allows other data to be calculated and displayed on the dB35 software The total mix of parameters either displayed on the CEL 350 or those that can be displayed on the dB35 software are summarised below Run Number LZpeak Laimin Serial Number LApeak Laimax Start Date TWA Calibration Times Start Time Lara and Dates End Time LEX 8h Pa2hr 1 Duration Lateq Pa2sec Laavg be LaFmin dose f ee Lasmax Projected dose1 Cpeak Lasmin with Q5 threshold 70 90 default 80dB and criterion 70 90 default 90dB in 1dB steps 1 displayed on the CEL 350 remainder shown on dB35 Please refer to dB35 software instruction manual for more information on these parameters The dBadge also stores 1 minute values of the following parameters L L L L Aeq Aavg Cpeak Zpeak Casella CEL 350 dBadge Users Handbook Page 37 10 3 ATEX Certificate sira CERTIFICATION 1 EC TYPE EXAMINATION CERTIFICATE 2 Equipment intended for use in Potentially Explosive Atmospheres Directive 94 9 EC 3 Certificate Number Sira 07ATEX2032X
15. Issue 0 4 Equipment CEL 35X IS dBadge Series Noise Dosemeter 5 Applicant Casella CEL Limited 6 Address Regent House Wolseley Road Kempston Bedford MK42 7JY UK Z This equipment and any acceptable variation thereto is specified in the schedule to this certificate and the documents therein referred to 8 Sira Certification Service notified body number 0518 in accordance with Article 9 of Directive 94 9 EC of 23 March 1994 certifies that this equipment has been found to comply with the Essential Health and Safety Requirements relating to the design and construction of equipment intended for use in potentially explosive atmospheres given in Annex II to the Directive The examination and test results are recorded in the confidential reports listed in Section 14 2 9 Compliance with the Essential Health and Safety Requirements with the exception of those listed in the schedule to this certificate has been assured by compliance with the following documents EN 50014 1997 EN 50284 1999 EN 50020 2002 EN 50303 2000 10 If the sign X is placed after the certificate number it indicates that the equipment is subject to special conditions for safe use specified in the schedule to this certificate 11 This EC type examination certificate relates only to the design and construction of the specified equipment If applicable further requirements of this Directive apply to the manufacture and supply of this equipment 12 The markin
16. L 350 dBadge is locked first unlock the keypad by holding down the H key whilst pressing the L key 3 times as shown in Figure 18 To stop the measurement run press and hold the two keys simultaneously for the period of the countdown as shown in Figure 20 gt STOP 3 gt STOP 2 gt STOP Figure 20 The display on the CEL 350 will then show the data from the measurement run that has just been completed as shown in Figure 21 A new measurement run can be started immediately by following the steps described in section 5 3 Ensure enough battery life and memory capacity remains if a consecutive measurement run is to be performed Casella CEL 350 dBadge Users Handbook Page 20 CASELLA CEL 5 5 Reviewing Measurement Run Data As soon as a measurement run has been stopped the dBadge will automatically display results from the completed measurement run The display will automatically cycle as shown in Figure 21 The screen contents will depend upon which display mode is selected ISO or OSHA ISO View OSHA View 10Hrs Battery and Wm gt M EMORY Bus memory MEMORY 80hrs status Instantaneous 13 45 03 CD 14 05 09 SPL and time LAF 112 3 LAS 109 1 aB Duration of last DURATION DURATION measurement 07 45 12 07 59 32 run Time LAEQ 89 9 LAVG 111 4 averaged and LCPK 101 4 op LZPK 119 4 dB peak data SE PA2 Hrs OSHA DOSE ban 3 43 data Projected PROJ DOSE PROJ DOSE NOISE 352 5 1753
17. May 2007 CASELLA CEL CEL 350 dBadge Including Intrinsically Safe I S CASELLA CEL Regent House Wolseley Road Kempston Bedford MK42 7JY U K Phone 44 0 1234 844 100 Fax 44 0 1234 841 490 E mail info casellacel com Web www casellacel com Versions Users Manual HB3323 02 CASELLA USA 17 Old Nashua Road 15 Amherst NH 03031 U S A Toll Free 1 800 366 2966 Fax 1 603 672 8053 E mail info casellaUSA com Web www casellaUSA com CASELLA ESPANA S A Pol gono Eurdpolis Calle C n 4B 28230 Las Rozas Madrid Spain Phone 34 91 640 75 19 Fax 34 91 636 01 96 E mail online casella es com Web www casella es com CASELLA CEL Caution UNDER NO CIRCUMSTANCES should this equipment be cleaned using a solvent based cleaner The CEL 350 dBadge contains no user serviceable parts do not open product case as this would invalidate the warranty When in use always use the windshield provided Use only the recommended CEL 252 microphone Damage caused by a failure to observe these warnings will NOT be covered by the normal warranty conditions When using the CEL 6351 pin mounting clips care should be taken when fitting them to an employee so that the skin is not pierced accidentally Environmental Considerations e Do not dispose of electronic equipment as municipal waste e The WEE symbol shown above indicates that separate collection systems should be used Cas
18. as been completed the noise badge can be downloaded via it s infra red port to the dB35 PC software This will allow comprehensive analysis of an employee s exposure This manual describes the operation of the CEL 350 dBadge and the associated mounting options as well as charging the dBadge Use of the CEL 350 IS Intrinsically Safe I S dBadge is described including special requirements for use under ATEX certification Casella CEL 350 dBadge Users Handbook Page 5 CASELLA CEL 2 SUPPLIED EQUIPMENT Carefully remove all components of the dBadge from the shipping container and check for possible damage or any missing items If any items are not present or damaged please contact Casella CEL immediately The following components should be included CEL 350 dBadge includes microphone CEL 252 windshield CEL 6356 and calibration certificate Or CEL 350 IS dBadge includes microphone CEL 252 windshield CEL 6356 and calibration certificate CEL 6351 Pin Mounting Kit CEL 6352 Crocodile Clip Mounting Kit fitted to CEL 350 Instrument kits include the following parts HB 3323 dBadge Instruction Manual on CEL 6357 software CD HB 3324 Field Guide printed hard copy CEL 6362 3 way Charger Unit including PC18 Power Supply Unit CEL 6355 Kit Case for up to 10 dBadge Units CEL 110 2 Class 2C Acoustic Calibrator including calibration certificate CMC39 Infra Red Download Cable includes screwdriver CEL 6357
19. ator has been removed NOTE The CEL 110 2 must only be used to calibrate the CEL 350 IS in a non hazardous atmosphere Casella CEL 350 dBadge Users Handbook Page 16 CASELLA CEL 5 3 Starting A Measurement Run Ensure the windshield is fitted according to section 3 4 The windshield protects the microphone from any potential erroneous results from wind but also helps to protect from any dust ingress moisture or impact damage Before taking a measurement run ensure there is sufficient battery life and memory by looking at the screen shown in Figure 9 If necessary charge the dBadge as described in section 4 1 and clear the memory as described in section 5 6 or download the dBadge to dB35 software Regardless of which display mode is selected ISO or OSHA ALL parameters are stored simultaneously and can be viewed via dB35 software To start the measurement run press and hold both the L and the R keys down together for 3 seconds as shown in Figure 15 Press and hold for 3 seconds Press and hold for 3 seconds dBadge CASELAS CEL 350 Figure 15 When these keys are held down together the display on the dBadge will begin a count down as shown in Figure 16 The keys must be held down during the countdown for the measurement run to begin Casella CEL 350 dBadge Users Handbook Page 17 CASELLA CEL START 3 Y START 2 Y gine Figure 16 Once the measurement run has begun
20. dB35 Download Software on CD including HB 3325 Software Manual and HB 3323 dBadge Manual HK111 Screwdriver for changing mounting clips If a kit with 10 dBadges was purchased the following item will be present CEL 6363 3 way charger extension unit including C6359 0 2 cable Optional items at time of order D8147 Z 3 Point Harness Casella CEL 350 dBadge Users Handbook Page 6 CASELLA CEL CEL 6351 Spare Pin Mounting Kit 5 Pack CEL 6352 Crocodile Clip Mounting Kit 5 Pack CEL 6353 Harness Mounting Kit 5 Pack CEL 6354 Hard Hat Mounting Kit CEL 6356 Spare Windshield CEL 90336 USB Adaptor 3 THE SYSTEM COMPONENTS 3 1 The CEL 350 dBadge The CEL 350 dBadge and controls are shown below in Figure 1 The two controls are the Left L and the Right R keys Windshield Left L Key bat EN Power Key Right H Key A A LED CEL 350 Window Display Figure 1 3 2 Mounting Clips Upon delivery the CEL 350 will be fitted with the CEL 6352 Crocodile mounting clips as shown in Figure 2 Mounting clips can be changed using the screwdriver provided For information on changing the mounting clips please see section 6 Casella CEL 350 dBadge Users Handbook Page 7 CASELLA CEL Crocodile Mounting Clips Figure 2 3 3 The CEL 6362 Charger A CEL 6362 is a drop in intelligent 3 way charger unit required to charge the internal Nickel Metal Hydride NiMH batteries on the CEL 350 d
21. dless of which mounting clips are attached Figure 5 Ensure the power supply PC18 is connected and the supply is switched on The CEL 350 dBadge will automatically switch on during charging and display how much charge is within the dBadge as shown in Figure 6 When the CEL 350 dBadge is charging the red LED will flash and the charge symbol 7 wil rotate on the top right of the display The dBadge will display Full once charging is complete and the LED on the front of the instrument will turn blue This should take approximately 1 5 hours from a discharged state A charging time of about 30 minutes will be sufficient to perform greater than 8 hours of measurement Once fully charged the CEL 350 holds enough charge to run for approximately 32 hours Casella CEL 350 dBadge Users Handbook Page 10 CASELLA CEL CHARGING 27 Hrs FULL 32hrs Figure 6 Note that once removed from the charger the dBadge will automatically switch off If returned to the charger the CEL 350 will charge for a minimum time of 10 minutes regardless of whether it is fully charged This does not affect battery performance in any way If the battery is fully discharged prior to being placed on a charger the CEL 350 will be trickle charged for a short time prior to the fast charge cycle this prevents damage to the batteries If this occurs a Pre Charge message will appear on the dBadge display Casella CEL 350 dBadge Users Handbook Pa
22. e Dosemeter shall not be used in areas where a layer of coal dust may be deposited on the enclosure The microphone shall not be removed in the hazardous area ESSENTIAL HEALTH AND SAFETY REQUIREMENTS OF ANNEX II EHSRs The relevant EHSRs that are not addressed by the standards listed in this certificate have been identified and individually assessed in the reports listed in Section 14 2 CONDITIONS OF CERTIFICATION The use of this certificate is subject to the Regulations Applicable to Holders of Sira Certificates Holders of EC type examination certificates are required to comply with the production control requirements defined in Article 8 of directive 94 9 EC reproduced in its entirety and without change CASELLA CEL Sira Certification Service Rake Lane Eccleston Chester CH4 9JN England Tel 44 0 1244 670900 Page 2 of 2 Fax 44 0 1244 681330 Form 9400 Issuei Email info siracertification com Web www siracertification com Casella CEL 350 dBadge Users Handbook Page 39
23. ears on memory see section 5 6 display On power up and during operation dBadge monitors hardware and software operation and will display an error if it finds a problem In the unlikely event this occurs the dBadge will try to save any data if it is in a measurement run Should the error persist after switching the dBadge off then on again contact Casella CEL Casella CEL 350 dBadge Users Handbook Page 32 CASELLA CEL 10 APPENDIX 10 1 Glossary of Terms This Appendix gives a glossary of the acoustic terminology used in this handbook and in the CEL 350 dBadge and dB35 software For further information please contact Casella CEL or your local representative A Weighting A standard weighting of the audible frequencies designed to approximate the response of the human ear to noise Acoustic Calibrator An instrument that provides a reference noise source with a standard level and frequency used to calibrate and check the performance of sound level meters and noise dosimeters ANSI 1 25 1991 The U S Standard for Noise Dosimeters C Weighting A standard weighting of the audible frequencies In the dBadge system it is used for the measurement of peak sound pressure level Criterion Level CL This is the normalised eight hour average weighted sound level in dB that corresponds to the maximum permitted daily exposure or 100 noise dose Criterion Time CT This is the time in hours used in the calculat
24. ee eee eee eee 20 5 5 Reviewing Measurement neues getest ge Eege 21 5 6 Conti guration O Te UT 22 Seeerei eege deed ege 23 SE 24 6 MOUNTING THE CELH350 siscssicwicesessecesiexsssssssseedsesvscssssussvdetsesecseesevevessoeseetedseye 26 6 1 CEL 6351 Pin Mounting CDS sss ss sese eee eee eee eee 26 6 2 CEL 6352 Crocodile Clip Mounting Km 26 6 3 CEL 6353 Harness Mounting km 28 6 4 CEL 6354 Hard Hat Mounting km 28 7 TECHNICAL SPECIFICATION 6s sccsiccissesssecdedssscsucdsssesvedsssedssesceeeccdssasssesdsastceies 29 Polly PC CHICAMOM TTT 29 7 2 Microphone Specification E NEE 30 8 SERVICING AND WARRANTY ARRANGEMENT S ssccssssscssssesssseeees 31 9 TROUBLESHOOTING saissssievecisscicicasoticscasseicecavelsvocsnesicacs verevesseeuseaeescdbesscevaseases 32 TO APPEND EM E 33 10 1 Glossary Of TTT 33 LOZ EE 37 10 3 ATEX e TEE 38 Casella CEL 350 dBadge Users Handbook Page 4 CASELLA CEL 1 INTRODUCTION The CEL 350 dBadge is a unique solution to problems associated with the measurement of personal noise exposure Using the latest digital technology ensures reliable and repeatable measurements The CEL 350 dBadge has no cable like a traditional dosimeter so is far easier to fit to an employee and is less likely to interfere with the individuals work Casella CEL provides various mounting options for the dBadge The CEL 350 dBadge is very simple operate with just 2 keys and can be locked to prevent tampering After a measurement h
25. ella CEL 350 dBadge Users Handbook Page 2 CASELLA CEL Instructions specific to hazardous area installations reference European ATEX Directive 94 9 EC Annex Il 1 0 6 The following instructions apply to equipment covered by certificate number Sira O7ATEX2032X for the CEL 35X IS dBadge series The certificate number includes an X suffix indicating that the following special conditions of certification apply 1 Parts of the enclosure are non conducting and may generate an ignition capable level of electrostatic charge under certain extreme conditions The user should ensure that the equipment is not installed or used in a location where it may be subjected to external conditions such as high pressure steam which might cause a build up of electrostatic charge on non conducting surfaces Additionally cleaning of the equipment should be done only with a damp cloth 2 The dBadge Noise Dosemeter shall not be used in areas where a layer of coal dust may be deposited on the enclosure 3 The microphone should not be removed in a hazardous area 4 The equipment may be used with flammable gases and vapours with apparatus Groups IIA IIB and IIC and with temperature classes T1 T2 T3 and T4 5 The equipment is only certified for use in ambient temperatures in the range 20 C to 40 C and should not be used outside this range 6 Repair of this equipment shall only be carried out by the manufacturer or in accordance wit
26. g of the equipment shall include the following IM1 II 1G EEx ia IIC T4 EEx ia I a 20 C to 40 C Project Number 51A15494 C Ellaby LG C Index 12 Certification Officer This certificate and its schedules may only be reproduced in its entirety and without change CASELLA CEL Sira Certification Service Rake Lane Eccleston Chester CH4 9JN England Page 1 of 2 Tel 44 0 1244 670900 Form 9400 Issue 1 Fax 44 0 1244 681330 Email info siracertification com Web wvww siracertification com Casella CEL 350 dBadge Users Handbook Page 38 13 14 14 1 14 2 15 15 1 15 2 15 3 16 17 17 1 17 2 This certificate and its schedules may only be sira CERTIFICATION SCHEDULE EC TYPE EXAMINATION CERTIFICATE Sira 07ATEX2032X Issue 0 DESCRIPTION OF EQUIPMENT The CEL 35X IS dBadge series is a miniature fully integrated Noise Dosemeter used for the measurement of personal noise exposure The series covered by this certificate are CEL 35X IS where X is any number from 0 to 9 The product is designed to be worn using a range of fixing methods alternatively it may be mounted on a hard hat The device comprises a plastic enclosure that contains two printed circuit boards an LCD display and rechargeable cells Two rubber keys located on the sides of the product are used to control the instruments operation Power to the device is provided from two internal and non removable type GP 1 2V 330m
27. ge 11 CASELLA CEL 4 2 Linking Chargers Together The main CEL 6362 charger can be linked to the CEL 6363 charger extension unit via the C6359 0 2 cable supplied with the CEL 6363 Up to 3 CEL 6363 units can be linked to the CEL 6362 charger for charging up to 12 dBadge units as shown below C Bez An PC18 H Power supply CEL 6363 Expansion charger kit 3 Way Charger C6359 0 2 link cable r J CEL 6362 3 Way charger Kit 3 Way Charger PC18 Power supply GC x4 CHARGER BASES IN TOTAL Casella CEL 350 dBadge Users Handbook Page 12 CASELLA CEL 5 GENERAL OPERATION 5 1 Switching on the dBadge Once the instrument is switched on by pressing the L key it will display a start up Sequence shown in Figure 8 This displays the dBadge model number and firmware version e g V1 05 followed by the Custom Text screen This text can be configured using the dB35 software optional refer to dB35 manual The screen will then change to the current time and date This will automatically be set to the internal clock of the PC every time the dBadge is downloaded to dB35 software CASELLA Cel 3S0 un Y JOE BEOG
28. h the applicable code of practice 7 lf the equipment is likely to come into contact with aggressive substances then it is the responsibility of the user to take suitable precautions that prevent it from being adversely affected thus ensuring that the type of protection is not compromised Aggressive substances e g solvents may affect polymeric materials 8 Do not charge the batteries in a hazardous area Only charge the CEL 35X or CEL 35X IS using the recommended charger CEL 6362 9 The CEL 110 2 must only be used to calibrate the CEL 35X or CEL 35X IS in a non hazardous atmosphere Casella CEL 350 dBadge Users Handbook Page 3 CASELLA CEL CONTENTS TINTRODUCTION E 5 2 SUPPLIED EQUIPMENT ssesseesseeseesseesoesoessoesoeesoesoeesoesoeesoesoeesoesoeesoesoeesoeseeeseesoee 6 3 THE SYSTEM COMPONENTS cass cess cacadisniccuctenssaucuescecnceescuccseacdvoucdesausnscancncnsvens 7 Sel The CEL 350 dBa dg seniseid kee ipa i rid tarsi e iE RE ai 7 3 2 WOU WEE 7 So Fhe CEL 6362 Char geiser oie enpe ttt hie asia ig a i S i 8 3 4 The e EE 9 A CHARGING THE CEL 350 eseesseeseesseeseesoeesoesoeesoesoeesoesoesseesoesseesoesseesoesseesoeeeee 10 GE EE 10 4 2 Linking Chargers KEE 12 5 GENERAL OPERATION sssessesssesssesvissssesssssesocisosssosssosssvssssve scdsscisosssorssesssssssose 13 5 1 Switching on the dBadgce essen 13 3 2 Calibration EE 15 5 3 Starting A Measurement Runs esse ee eee eee 17 5 4 Stopping A Measurement Run e
29. ion of the Dose dB A A weighted sound level in decibels dB C C weighted sound level in decibels dB Z Z weighted sound level in decibels Casella CEL 350 dBadge Users Handbook Page 33 CASELLA CEL Decibel dB The standard physical unit for measuring sound level and noise exposure Estimated Exposure in Pa h A calculated estimate of the exposure that would be received by the wearer if the average level measured continues for the period defined by the criterion time Expressed in Pascal squared hours Pa h Fast Time Weighting A standard time weighting applied by the sound level measurement instrument IEC 61252 The International Standard for Personal Sound Exposure Meters LAE The A weighted exposure level is the level that would contain the same amount of energy in one second as the actual noise has during the whole measurement period LAeq The A weighted equivalent level is the level that would contain the same amount of noise energy as in the actual noise effectively giving an average level over the measurement period Following the ISO procedures doubling the energy results in a 3dB change in the Leq This is denoted by exchange rate Q 3 For example if the noise level in a factory was a constant 85dB and the measurement period was 4 hours the LAeq would be 85dB A The calculation of LAeq DOES NOT USE a Threshold as in the calculation of LAVG LAF The A weighted sound level measured with Fast
30. local workplace noise regulations They can be used by an employer as a visual indicator of an individual s exposure throughout the day and can be switched on or off as per section 5 6 If these pre determined alarm levels are exceeded then the blue LED on the front of the CEL 350 will flash The location of the LED is shown in Figure 23 Red and Blue LED Window Figure 23 The default alarm levels will depend on which display mode is selected either ISO or OSHA mode summarised in the following table The default levels are Display Blue LED Blue LED Blue LED Setup Off Flashing Slow Flashing Fast ISO Leq lt 79 9dB A Leq gt 80 amp lt 84 9 Leq gt 85dB A AND dB A OR Lpk lt 134 9dB C OR Lpk gt 137dB C Lpk gt 135 amp lt 136 9 dB C OSHA Lavg T 80 lt 84 9dB A AND Lok lt 139 9dB Z Lavg T 80 gt 85 A OR Lok gt 140dB Z Lavg T 80 gt 85dB A AND Lok gt 140dB Z Casella CEL 350 dBadge Users Handbook Page 24 CASELLA CEL For the ISO mode the alarm levels are based upon the EU directive 2003 10 EC OSHA levels are based upon the American Occupational Safety and Health Administration OSHA regulations As an example if the CEL 350 is in ISO mode and the Leq rises above 80dB A then the LED will flash slowly approx once per second If an impulsive noise occurs above 137dB C peak the blue LED will flash quick
31. ly approximately twice per second Note that for peak levels the action level only needs to be exceeded once during the day for the employee to be over the relevant action level However for the time averaged data Leq and Lavg the LED may switch on and off depending on how the employees exposure varies throughout the day It is important to realise alarm indications are based on the average or peak levels since the start of the run and not averaged to 8 hours Casella CEL 350 dBadge Users Handbook Page 25 CASELLA CEL 6 MOUNTING THE CEL 350 The recommended location for mounting a noise exposure meter varies depending upon the legislation specific to a country Most countries recommend a position close to the ear 10 15cm so the dBadge can be mounted on a collar or shoulder The UK legislation recommends mounting on the top of the shoulder to avoid reflections from the head and body affecting the measurements as much as possible All mounting clips are attached to the CEL 350 dBadge by two screws By removing the screws with the screwdriver provided the mounting clips can be changed 6 1 CEL 6351 Pin Mounting Clips These clips can be mounted to a variety of clothing Caution should be used when fitting these to an employee to avoid piercing the skin These clips should not be used on fire retardant clothing as piercing the outer layer will compromise the employees protection 6 2 CEL 6352 Crocodile Clip Mounting Kit
32. rer undertakes to rectify any defect in the instrument directly attributable to faulty design or assembly and which becomes apparent during the warranty period In order to take advantage of this warranty the instrument must be returned carriage paid to the manufacturer s factory or accredited agent where necessary repairs will be carried out The warranty period runs for 12 months from the date of receipt of goods with exceptions on certain specialised components supplied by other manufacturers that may be warranted for shorter or longer periods by their actual manufacturers In all such cases the benefit of these undertakings will be passed on to the user CASELLA CEL s liability is limited to items of their own manufacture and they do not accept liability for any loss resulting from the operation or interpretation of the results from this equipment To obtain repair under warranty the instrument should be packed and returned in it s original packing or an equivalent either to CASELLA CEL s local agent or in the case of U K domestic sales to the CASELLA CEL Service Department at Bedford Please include the following information Instrument Type s Serial Number s and Firmware Version Number s Customer name and address Contact name and phone number details of any PC and Software involved including Version Number s reason for returning the equipment with a detailed description of the fault and a list of any error messages
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