Casella CEL CEL-35X dBadge User Manual

CASELLA CEL

Regent House,
Wolseley Road,
Kempston,
Bedford,
MK42 7JY, U.K.
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.casellameasurement.com

CASELLA USA

17 Old Nashua Road #15
Amherst, NH 03031-2839,
U.S.A.
Toll Free: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.casellaUSA.com

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: [e-mail]
Web: www.casella-es.com

June 2011

CEL-35x dBadge

Including Intrinsically Safe (I.S.)

Users Manual

Versions

HB3323-07

Casella CEL-35X dBadge Users Handbook – Page 1

Caution

UNDER NO CIRCUMSTANCES should this equipment be cleaned
using a solvent based cleaner.

The CEL-35X 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.

Please refer to section 6.2 of this manual when changing dBadge
mounting clips as placing the incorrect screw in the wrong hole can
damage the dBadge.

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

Instructions specific to hazardous area installations
(reference European ATEX Directive (94/9/EC, Annex II, 1.0.6.)

The following instructions apply to equipment covered by certificate
number Sira 07ATEX2032X 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 and T2.

5. The equipment is only certified for use in ambient temperatures
in the range -20oC to +40oC and should not be used outside this
range.

6. Repair of this equipment shall only be carried out by the
manufacturer or in accordance with the applicable code of
practice.

7. If 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-120/2 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

CONTENTS

1 INTRODUCTION .................................................................................................... 5

2 SUPPLIED EQUIPMENT ....................................................................................... 6

3 THE SYSTEM COMPONENTS ............................................................................ 8

3.1 The CEL-35X dBadge ......................................................................................... 8

3.2 Mounting Clips .................................................................................................... 8

3.3 The CEL-6362 Charger ....................................................................................... 9

3.4 The Windshield ................................................................................................. 10

4 CHARGING THE CEL-35X ................................................................................. 11

4.1 Charging ............................................................................................................ 11

4.2 Linking Chargers Together ............................................................................... 12

5 GENERAL OPERATION ..................................................................................... 13

5.1 Switching on the dBadge ................................................................................... 13

5.2 Calibration ......................................................................................................... 14

5.3 Starting A Measurement Run ............................................................................ 16

5.4 Stopping A Measurement Run .......................................................................... 19

5.5 Reviewing Measurement Run Data ................................................................... 20

5.6 Configuration Menu .......................................................................................... 22

5.7 Display Mode .................................................................................................... 25

5.8 Alarm Settings ................................................................................................... 26

6 MOUNTING THE CEL-35X ................................................................................ 28

6.1 CEL-6351 Pin Mounting Clips .......................................................................... 28

6.2 CEL-6352 Crocodile Clip Mounting Kit ........................................................... 29

6.3 CEL-6353 Harness Mounting Kit ..................................................................... 30

6.4 CEL-6354 Hard Hat Mounting Kit ................................................................... 30

7 TECHNICAL SPECIFICATION ......................................................................... 31

7.1 Specification ...................................................................................................... 31

7.2 Microphone Specification (CEL-252) ............................................................... 32

8 SERVICING AND WARRANTY ARRANGEMENTS ..................................... 33

9 TROUBLESHOOTING ......................................................................................... 34

10 APPENDIX ........................................................................................................... 35

10.1 Glossary of Terms ........................................................................................... 35

10.2 Measured Parameters....................................................................................... 39

10.3 Using the CEL-352 for the Selection of Hearing Protection ........................... 40

10.4 ATEX Certificate ............................................................................................ 42

10.5 FM Certificate ................................................................................................. 45

Casella CEL-35X dBadge Users Handbook – Page 4

1 INTRODUCTION

The CEL-35X family consists of the CEL-350 dBadge, CEL-350L
dBadge „Lite‟ 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 repeatable measurements. The CEL-35X 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-35X dBadge is very simple operate with just 2 keys, and can
be locked to prevent tampering. After a measurement has been
completed the noise badge can be downloaded via it‟s infra-red port to
the Casella insight data management software. This will allow
comprehensive analysis of an employee‟s exposure.

This manual describes the operation of the CEL-35X dBadge and the
associated mounting options, as well as charging the dBadge.

Use of the CEL-35X/IS Intrinsically Safe (I.S.) dBadge is described,
including special requirements for use under ATEX certification.

The CEL-350L is an entry level model that does not store the time
history of the noise data.

The CEL-352 dBadge „Plus‟ measures additional values which allow
for the selection of hearing protection via the Single Number Rating
(SNR) or High, Medium, Low (HML) methods.

Casella CEL-35X dBadge Users Handbook – Page 5

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-35X dBadge (includes microphone CEL-252, windshield

CEL-6356 and calibration certificate)

Or
CEL-35X/IS I.S. dBadge (includes microphone CEL-252,

windshield CEL-6356 and calibration certificate)
Where CEL-35X represents either a CEL-350 or CEL-352
CEL-6351 Pin Mounting Kit

CEL-6352 Crocodile Clip Mounting Kit (fitted to CEL-35X)
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-120/2 Class 2 Acoustic Calibrator (including calibration

certificate)
193200B Infra Red Download Cable (includes screwdriver)
CEL-6357 Casella insight data management 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)

Casella CEL-35X dBadge Users Handbook – Page 6

Optional items at time of order:
D8147/Z 3 Point Harness

CEL-6351 Spare Pin Mounting Kit (5 Pack)
CEL-6352 Crocodile Clip Mounting Kit (5 Pack)
CEL-6354 Hard Hat Mounting Kit
CEL-6356 Spare Windshield
CEL-90336 USB Adaptor

Casella CEL-35X dBadge Users Handbook – Page 7

LED

Window

Windshield

Left „L‟ Key
(Power Key)

Right „R‟ Key

Display

3 THE SYSTEM COMPONENTS

3.1 The CEL-35X dBadge

The CEL-35X dBadge and controls are shown below in Figure 1. The
two controls are the Left (L) and the Right (R) keys.

Figure 1

3.2 Mounting Clips

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 8

Screws for

mounting

clips

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 CEL­35X dBadge. 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-35X and
the 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.

Casella CEL-35X dBadge Users Handbook – Page 9

Note that all versions of the dBadge should only be charged in non­hazardous 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 anti­clockwise and lift the windshield to remove.

Figure 4

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 10

CHARGING

27Hrs

FULL

28Hrs

4 CHARGING THE CEL-35X

4.1 Charging

The CEL-35X dBadge uses internal NiMH batteries. Ensure the CEL­35X is fully charged prior to use by placing in the charger as shown in
Figure 5. Note the CEL-35X will fit into charger units regardless of
which mounting clips are attached.

Figure 5

Ensure the power supply (-PC18) is connected and the supply is
switched on. The CEL-35X dBadge will automatically switch on
during charging and display how much charge is within the dBadge,
as shown in Figure 6. When the CEL-35X dBadge is charging the
red LED will flash and the charge symbol will 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-35X
holds enough charge to run for approximately 28 hours.

Figure 6

Casella CEL-35X dBadge Users Handbook – Page 11

CEL-6362 - 3 Way charger Kit

3 Way Charger + PC18 Power supply

CEL-6363 - Expansion charger kit

3 Way Charger + C6359/0.2 link cable.

PC18

Power supply

.....x4 CHARGER BASES

IN TOTAL

Note that once removed from the charger, the dBadge will
automatically switch off. If returned to the charger the CEL-35X 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-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 „Pre­Charge‟ message will appear on the dBadge display.

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 in Figure 7 below.

Figure 7

Casella CEL-35X dBadge Users Handbook – Page 12

CASELLA

CEL-350

V1.01

JOE BLOGGS
CONSULTANTS

23 JUL 05
13:45:03

LAF 112.3

13:45:03

dB

7Hrs

80Hrs

Screen will show CEL­350L on dBadge „Lite‟
model or CEL-352 on
dBadge „Plus‟ model.

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. V1.07), followed by

the „Custom Text‟ screen. This text can be configured using the

Casella insight data management software. 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
Casella insight data management software.

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.

Figure 8

Figure 9

Casella CEL-35X dBadge Users Handbook – Page 13

DURATION

07:45:12

LAEQ 89.9
LCPK

101.4

PA Hrs

3.20

PROJ DOSE

352.5 %

DURATION

07:59:32

LAVG 111.4
LZPK

119.4

OSHA DOSE

114.3 %

PROJ DOSE

175.3 %

LCEQ 92.4dB
LC-A 4.8 dB

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-35X is configured to display ISO or
OSHA parameters (see sections 5.6 & 5.7).

ISO VIEW

OSHA VIEW

Additional screen on CEL-352 dBadge „Plus‟ model:

Figure 10

Note: If „Pro Mode‟ is enabled additional menus will be displayed, see
section 5.5.

The over-range symbol will be shown if the CEL-35X 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. 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.

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 Casella
insight data management 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.

Casella CEL-35X dBadge Users Handbook – Page 14

CALIBRATE ?

114.0

X

The windshield should be removed prior to calibration, refer to section

3.4.
Push the CEL-120/2 acoustic calibrator over the microphone as

shown in 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 12.

Figure 12

Press the „R‟ 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.

Casella CEL-35X dBadge Users Handbook – Page 15