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August 2008
CEL-352 dBadge 'Plus'
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
CEL-350 dBadge &
Versions
Users Manual
HB3323-04
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 CEL-35X dBadge Users Handbook – Page 1
CASELLA ESPANA S.A.
Polígono Európolis
Calle C, nº4B
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
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Summary of Contents for Casella CEL-350 dBadge
- Page 1 Phone: +44 (0) 1234 844 100 Fax: +1 (603) 672 8053 Fax: + 34 91 636 01 96 Fax: +44 (0) 1234 841 490 E-mail: info@casellaUSA.com E-mail: online@casella-es.com Casella CEL-35X dBadge Users Handbook – Page 1 E-mail: info@casellacel.com Web: www.casellaUSA.com Web: www.casella-es.com Web: www.casellacel.com...
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Page 2: Environmental Considerations
Environmental Considerations • Do not dispose of electronic equipment as municipal waste • The WEE symbol shown above indicates that separate collection systems should be used Casella CEL-35X dBadge Users Handbook – Page 2... - Page 3 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-35X dBadge Users Handbook – Page 3...
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Page 4: Table Of Contents
8 SERVICING AND WARRANTY ARRANGEMENTS........31 9 TROUBLESHOOTING ..................32 10 APPENDIX......................33 10.1 Glossary of Terms....................33 10.2 Measured Parameters ..................37 10.3 Using the CEL-352 for the Selection of Hearing Protection ......38 10.4 ATEX Certificate .....................40 10.5 FM Certificate....................42 Casella CEL-35X dBadge Users Handbook – Page 4... -
Page 5: Introduction
1 INTRODUCTION The CEL-35X family consists of the CEL-350 dBadge and the CEL-352 dBadge ‘Plus’. The CEL-35X dBadge is a unique solution to problems associated with the measurement of personal noise exposure. Using the latest digital technology ensures reliable and... -
Page 6: 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-35X... -
Page 7: The System Components
Upon delivery, the CEL-35X 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-35X dBadge Users Handbook – Page 7... -
Page 8: The Cel-6362 Charger
CEL-35X/IS. The previous version of the charger base (193038B-01) can only be used with the CEL-35X and NOT the CEL-35X/IS. Note that all versions of the dBadge should only be Casella CEL-35X dBadge Users Handbook – Page 8... -
Page 9: The Windshield
Once the CEL-35X 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-35X dBadge Users Handbook – Page 9... -
Page 10: Charging The Cel-35X
A charging time of about 30 minutes will be sufficient to perform greater than 8 hours of measurement. Once fully charged, the CEL-35X holds enough charge to run for approximately 32 hours. Casella CEL-35X dBadge Users Handbook – Page 10... - Page 11 CEL-35X 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-35X dBadge Users Handbook – Page 11...
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Page 12: Linking Chargers Together
Power supply CEL-6363 - Expansion charger kit 3 Way Charger + C6359/0.2 link cable. CEL-6362 - 3 Way charger Kit 3 Way Charger + PC18 Power supply ..x4 CHARGER BASES IN TOTAL Casella CEL-35X dBadge Users Handbook – Page 12... -
Page 13: General Operation
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-35X dBadge Users Handbook – Page 13... - Page 14 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. Casella CEL-35X dBadge Users Handbook – Page 14...
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Page 15: Calibration
Figure 11. The calibrator should be pushed on without twisting. Figure 11 The CEL-35X dBadge will automatically recognise a 1kHz calibration tone is present and display the screen shown in Figure Casella CEL-35X dBadge Users Handbook – Page 15... - Page 16 Figure 14 The CEL-35X is ready to take a measurement once the calibrator has been removed. NOTE: The CEL-110/2 must only be used to calibrate the CEL- 35X/IS in a non-hazardous atmosphere. Casella CEL-35X dBadge Users Handbook – Page 16...
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Page 17: Starting A Measurement Run
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-35X dBadge Users Handbook – Page 17... - Page 18 (SPL) values and the duration of the measurement run so far. The second displays the status of the memory and battery. screens are displayed below in Figure 17. LAF 112.3 DUR 07:45:12 Figure 17 Casella CEL-35X dBadge Users Handbook – Page 18...
- Page 19 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.
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Page 20: Stopping A Measurement Run
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-35X dBadge Users Handbook – Page 20... -
Page 21: Reviewing Measurement Run Data
175.3 % 352.5% exposure data Hearing LCEQ 94.7 LCEQ 94.7 protection LC-A LC-A selection data The last screen, highlighted in red, is only available on the CEL- 352 dBadge ‘Plus’ model Figure 21 Casella CEL-35X dBadge Users Handbook – Page 21... -
Page 22: Configuration Menu
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’ to confirm and move to next screen. Casella CEL-35X dBadge Users Handbook – Page 22... -
Page 23: Display Mode
OSHA (for U.S.A), as shown in the table below. DATA OSHA Instantaneous SPL Time Averaged Parameter L Aavg Peak Value Cpeak Zpeak Dose Value Hours, % Dose, Projected % Projected % Dose Dose * CEL-352 dBadge ‘Plus’ model only Casella CEL-35X dBadge Users Handbook – Page 23... -
Page 24: Alarm Settings
Red and Blue LED Window Figure 23 The default alarm levels will depend on which display mode is selected, either ISO or OSHA mode. The default levels are summarised in the following table. Casella CEL-35X dBadge Users Handbook – Page 24... - Page 25 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-35X dBadge Users Handbook – Page 25...
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Page 26: Mounting The Cel-35X
The CEL-6352 is used for attaching the CEL-35X 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-35X dBadge Users Handbook – Page 26... - Page 27 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-35X dBadge Users Handbook – Page 27...
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Page 28: Cel-6353 Harness Mounting Kit
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-35X dBadge Users Handbook – Page 28... -
Page 29: Technical Specification
70-90dB in 1dB steps via dB35 software, Criterion: 70-90dB in 1dB steps via dB35 software, Clock: Accuracy better than 1min per month, Under Range: 1dB below the bottom of the range, Indication Casella CEL-35X dBadge Users Handbook – Page 29... -
Page 30: Microphone Specification (Cel-252)
Type 2 Nominal Open-Circuit Sensitivity (250Hz): -28dB ± 3.0dB (30mV/Pa) Polarization voltage: Capacitance (polarized, 250Hz): 11-15pF Operating temperature range: 0 to +40 Cartridge thermal noise: 25dB(A) Dimensions: IEC 61094-4 Type WS 2 Casella CEL-35X dBadge Users Handbook – Page 30... -
Page 31: Servicing And Warranty Arrangements
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. -
Page 32: Troubleshooting
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-35X dBadge Users Handbook – Page 32... -
Page 33: Appendix
10.1 Glossary of Terms This Appendix gives a glossary of the acoustic terminology used in this handbook and in the CEL-35X 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. - Page 34 LAVG. The A-weighted sound level measured with Fast time weighting. The A-weighted sound level measured with Slow time weighting. LASmax The maximum A-weighted sound level measured with Slow time weighting. Casella CEL-35X dBadge Users Handbook – Page 34...
- Page 35 Following the ISO procedures, doubling the energy results in a 3dB change in the Leq. This is denoted by exchange rate Q=3. Casella CEL-35X dBadge Users Handbook – Page 35...
- Page 36 LAVG and measurement duration. Z-Weighting Effectively this is a linear, or un-weighted measurement. In the dBadge system it is used for the measurement of peak sound pressure level against the OSHA standard. Casella CEL-35X dBadge Users Handbook – Page 36...
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Page 37: Measured Parameters
CEL-352 dBadge ‘Plus’ model only Please refer to dB35 software instruction manual for more information on these parameters. The dBadge also stores 1-minute values of the following parameters: Aavg Cpeak Zpeak Casella CEL-35X dBadge Users Handbook – Page 37... -
Page 38: Using The Cel-352 For The Selection Of Hearing Protection
2: (H-M) PNR = M – x (L – L – 2) If L – L is greater than 2: (M-L) PNR = M – x (L – L – 2) Casella CEL-35X dBadge Users Handbook – Page 38... - Page 39 UK a further standard 4dB is taken off the PNR, so in this case the value at the ear would be 79dB(A). Casella CEL-35X dBadge Users Handbook – Page 39...
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Page 40: Atex Certificate
10.4 ATEX Certificate Casella CEL-35X dBadge Users Handbook – Page 40... - Page 41 Casella CEL-35X dBadge Users Handbook – Page 41...
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Page 42: Fm Certificate
10.5 FM Certificate Casella CEL-35X dBadge Users Handbook – Page 42... - Page 43 Casella CEL-35X dBadge Users Handbook – Page 43...
- Page 44 Casella CEL-35X dBadge Users Handbook – Page 44...
- Page 45 Casella CEL-35X dBadge Users Handbook – Page 45...
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