CEL-320, CEL
Contents
1. 44 gt dB m inc LL tot SLM A TH WT AL SLM NA U U 1326 Blank Screen Comments The display steps through all details and parameters see Section 9 4 starting here with Linear Peak Li pk measurement When amp icons are shown on the display the relevant menu keys may be used to change the current measurement settings This completes the cycle back to first SLM display No operations are possible Selecting amp Changing Options The OPTION mode accesses the part of the operating firmware that allows the following items to be checked or adjusted Acoustic cali Adjustment bration see Section 5 2 of the calendar clock and time Battery voltage and Microphone temperature C Communication status when the instrument is connected to a PC for us e with dB10 or dB12 Soundtrack Software Activate de activate the Run Timer commands set by dB10 and dB12 on Review Options 8 1 Operation 1 Start from the Final Start Up Display 2 Change Mode 3 Next Option y on a CEL 360 series Press a Shows Z TY l My TLN 14 2 43 C MENU B lt gt several i PAL IigJ times gt Re TIME l peatedly Di rr i 153 Comments Optional operations showing SPL for acoustic calibration see Section 5 2 The display cycles through the rest of the options Current Time Current Date2. Battery condition Communication status Timer status CEL 360 series Microphone Temperature Erase use this option with caution IT DELETES ALL STORED DATA CEL 320 360 Getting Started Page 13 8 2 li Operation Select Time Option Enable Time Change Change the entry Save the Changes Set Time amp Date Press Display Shows 4 b TIME iHe 193 G E BEZ TIME iHe 153 or iv TIME 132153 a b JTIME 1353 Comments Follow on from Step 3 in Section 8 1 Cursors are enabled and the hours entry blinks to show it can be edited Use and to highlight an entry Use and to change the entry The new time setting is stored Repeat this process in the Date Option to set the date PLEASE NOTE that the date format is dd mm yy 8 3 li Operation Select Timer Option Switch Timer Review Timer settings Review Duration setting Press 7 Display Shows i 4 gt ITTMEL N I EIN OFF i t N DELHI E Sina EA HAMER UNI t TONY a a o I VN n IINE DFF t OF TONY CB rr o Ya co n i LAILAS OFF i Em Page 14 CEL 320 360 Getting Started Change Timer amp Run Duration CEL 360 series Comments Follow on from Section 8 1 Displays that are found only on CEL 360 series instruments are shown
3. The dosimeter microphone and lead on both models can be replaced by a sound level meter microphone to offer comprehensive sound level measurement The CEL 320 360 series instruments have the following features a Seven built in standard dose measurement setups OSHA MSHA DOD ACGIH ISO85 ISO90 and METER a Up to 13 user specified dose measurement setups a A single sound level meter SLM setup a 50 dose DATA result stores a Storage of up to 10 profiles attached to each CEL 360 dose measurement as specified by dB10 or dB12 software a Self configured storage The instruments are built to withstand rough industrial conditions with cases formed from a polyester polycarbonate material that gives them a Note ISO procedures using Criterion 85 dB and 90 dB Page 4 CEL 320 360 Getting Started high resistance to damage Data integrity is further protected by a dose microphone lead which is designed to resist knocks and abrasions without affecting the signal passing from microphone to instrument Both instruments can be operated and deliver dose and SLM results without the need for other equipment beyond an acoustic calibrator However they become even more versatile when their measurement and setup data is transferred via a PC using the CEL 6702 dB10 or CEL 6704 dB12 Windows based software These programs enable the instruments to be fully configured Dose DATA setups can be added or removed from the instrument while
4. Display Shows REC A G TUN 103904 4 3 Data from Current Run c DATA Pressing as for the CEL 420 460 series will also cycle the display Pause the run To lock the keys and display to prevent unauthorised tampering To unlock the keys and display to restore normal operation Recall Dose Data Comments REC icon indicates that the instrument is now storing dose data in the first available data store Shows where data from the current run is being saved store 4 and on a CEL 360 indicates the number of completed profile periods The display cycles through data from current run see Section 9 4 Some of these displays offer and options that show further parameters The displays will be updated while the run is in progress The pause icon Il is shown Press this key again to resume the run The keys and display cannot be locked while the instrument is paused Stop This command must be confirmed The Run is now ended All stored runs will be lost if the battery is disconnected Measured data stored while operating in the DATA mode can be DATA accessed via the ___ key Data from the run in progress can be inspected while the instrument is recording as described in Steps 4 and 5 of Section 6 2 When the instrument is stopped with no data being saved stored data ca
5. centre following approved written procedures Page 22 CEL 320 360 Getting Started CEL 320 360 Getting Started Page 23 Page 24 CEL 320 360 Getting Started
6. 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 List of any error messages that may have been displayed The necessary adjustments or repairs will be carried out and the instrument returned as soon as possible A comprehensive Instrument Calibration Maintenance Agreement ICMA scheme is available to extend the initial warranty period of this instrument At the end of the first warranty period it is recommended that the equipment be returned to the Service and Verification Department at Bedford where it will be inspected and entered into the ICMA scheme as required Th
7. select OPTION to enable Operating oe Mio LI Acoustic Calibration it shows Mode re hl i 123 current SPL peatediv 7 3 oe 1 and V are now enabled Chan r ru l iu 3 The displav shows current ange Lr I IC sound level 4 ehanas or Press or V Level iD l LU N Indicated level rises falls eve LIU PITU 0 05 dB for each kev press Adjust to correct level for CEL 320 360 microphones at standard temperature and pressure 114 0 dB 5 Set Ome gt The 114 0 dB calibration level Calibration se was u I LUM is now set and will be stored Level J H l Hu in the microphone assembly 6 If the m N gt The calibration level is calibration is 7 FMI ILun NOT SAVED and the to be aborted LIL l FUN instrument continues to use the last saved calibration Page 8 CEL 320 360 Getting Started 6 Operation as a Dosimeter 6 1 Select Dose Setup for Use Operation Press Display Shows Comments 1 Change MENU Ady To select SET UP Operating wa len ze n The first display always shows Mode re ne LU A dE d the ln Setup for eatedly 7 example ose x measurement 2 Select Ad gt Select required Set Up from another several arit OSHA dose procedures Set Up times H i tt SHA dose procedures Br DOD dose procedures ACGIH dose procedures ISO85 dose procedures ISO90 dose procedures ETER procedure SLM see Section 7 E
8. the individual measurement parameters can be added deleted or changed in a setup Some setup parameters such as measurement range can either be set to a particular value or left to the user to change via the instrument keypad dB10 and dB12 have the facilities expected of fully featured 32 bit Windows packages enabling report production with cut and paste between applications and comprehensive word processing capabilities In addition dB12 has extensive on screen graphing facilities 4 1 Sound Level Meter amp Intrinsicallv Safe IS Models Both dosimeters can be converted to a miniature sound level meter by fitting a CEL 425 SLM Microphone Adaptor The CEL 320 becomes a CEL 320S Sound Level Meter i Table 1 Models Availabl while the CEL 360 becomes a 2 Zn CEL 360S Logging Sound Level Standard Description Meter Model CEL 320 Noise Dosimeter CEL 320S Sound Level Meter CEL 360 Logging Noise Dosimeter Intrinsically safe versions CEL 360S Logging Sound Level Meter are available of both dosimeter and sound level meter models The part numbers have IS after their standard part number The model line up is shown in Table 1 4 2 CEL 320 320S Noise Dosimeters The following features apply to the CEL 320 and CEL 320S These instruments are ideal for quick on site surveys and for monitoring personal noise exposure in accordance with European ISO or USA OSHA MSHA DOD and ACGIH standards For dose measurement they are passiv
9. will start on the current day Press ae in either the Beg or End screen to enable disable each timer pair When a pair is disabled its settings will be shown as This is the First End stop time set by dB10 or dB12 dd hh mm The display steps through 16 sets of Start End times CEL 320 360 Getting Started Page 15 9 Technical Information 9 1 Specification Dosimeter Sound Exposure Meter Standards IEC 61252 BS EN 61252 ANSI S1 25 1992 for dosimeters and sound exposure meters Electromagnetic and electrostatic compatibility The sound level at which this personal sound exposure meter conforms to clause 15 of this standard is 85 dB The personal sound exposure meter was tested in Dose mode using 85 dB due to the duration of testing The instrument has no additional connector points during normal mode of operation N B When downloading data using cable no C6671 the meter conforms to the requirements for EMC emissions and immunity as specified in IEC 61000 61 1997 61000 6 2 1999 61000 6 3 1996 and 61000 6 4 1997 The configuration for the normal mode of operation is measurement set up ISO 85 or ISO 90 There is no degradation in performance or loss of functionality following the application of electrostatic discharges The approved configuration for the reference orientation is with the instrument secured to a nonmetallic backing material with the microphone cable secured in a horizon
10. EL 320 360 Getting Started Page 3 3 Contents Section Page Section Page 1 Display 3 6 4 Review Stored Data 10 2 KEYS aaa 3 6 5 Print Standard Report 11 3 Gontentsi sss ee ous 4 7 Operation as a Sound Level 4 Introduction to the Meter 2 Dosimeters 4 8 Selecting and Changing 4 1 Sound Level Meter Models 5 Options 3 4 2 CEL 320 320S Noise 8 1 Review Options 13 Dosimeters 5 82 SetTime amp Date 14 4 3 CEL 360 360S Logging 8 3 Change Timer and Run Noise Dosimeters 6 Duration CEL 360 Series 14 5 Preparation for Use 7 9 Technical Information 16 5 1 Install Battery and 9 1 Specification 6 Microphone 7 9 2 CE Compliance 18 5 2 Perform Acoustic Calibration 7 9 3 Default Parameter Settings 18 6 Operation as a Dosimeter 9 9 4 Parameter Identities 19 6 1 Select Dose Set Up for Use 9 10 Parts Servicing amp Warranty 20 6 2 Measure and Store 10 1 Schedule of Parts 20 Dose Data 9 10 2 Servicing amp 6 3 Recall Dose Data 10 Warranty Arrangements 20 11 Intrinsically Safe Models 22 4 Introduction to the Dosimeters The CEL 320 and CEL 360 Noise Dosimeters have been developed from the successful CEL 420 460 range of instruments by adding features and improving the control procedures They measure the frequency weighted noise exposures and peak sound levels simultaneously
11. Instructions specific to hazardous area installations Bee European ATEX Directive 4 9 EC Annex Il 1 0 6 The following instructions apply to equipment covered by certificate number Sira O5ATEX2027X for the CEL 320 IS and CEL 360 IS 1 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 2 The equipment is only certified for use in ambient temperatures In the range 200C to 400C and should not be used outside this range 3 The certificate marking is detailed on drawing numbers 13 1920001A IS 03 and 13 1920002A IS 03 4 Repair of this equipment shall be carried out bv the manufacturer or in accordance with the applicable code of practice 5 The certification of this equipment relies on the following materials used in its construction Polvbutvlene terephlhalate PBT and Polvcarbonate PC 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 that may affect polymeric materials Suitable precautions e g regular checks as part of routine inspections or establishing from the material s data sheet that it is resistant to specific chemicals 6 The certificate number has an X suffix that indicates that t
12. TER is a special procedure with neither threshold nor criterion that allows the instrument to store data as a ogging sound level meter 3 Load Selected A4 Loaded messages show the Set Up for use S Jo in Setup is now active for i hal INA LU AdE d example ISO procedure with per 90 dB Criterion 6 2 Measure and Store Dose Data Operation Press Display Shows Comments 1 Change en f B gt This is dose measurement Operating Nele omn IN n where the display can show Mode re 1 JPN EL un dose data peatedly U 2 Start Run aa ll When the run TIMER of a NIL aoe CEL 360 is ON Section 8 3 Wr l Jo with Beginning and End times set the instrument waits showing the pause icon and the time remaining until the run starts When the run TIMER of a CE wi wa nis L 360 is ON Section 8 3 h SYNC ON the instrument its until the clock is synchro ed with any selected profile time before the run starts When the run Timer of a CE L 360 is OFF section 8 3 or with a CEL 320 the instru ment waits until the next whole clock second then sta rts the run CEL 320 360 Getting Started Page 9 Operation 3 Then 4 Inspect data from Current Run 5 Inspect further data from Current Run 6 If Required 7 If Required 8 If Required 9 Stop Run 10 Confirm Stop 6 3 Press BEIN DATA several times PLUS PLUS
13. ched on or off from the instrument keys Other settings can be changed only by dB10 and dB12 Software Page 6 CEL 320 360 Getting Started Once data saved by a CEL 360 instrument has been downloaded to a PC the user can specify a period over which to re calculate the projected dose values The software can also calculate six exceedance time percentiles with levels preset to values specified by measurement standards plus one user specified time percentile 5 Preparation for Use 5 1 Install Battery amp Microphone Connect a new 6LF22 or equivalent 9 V m 4 8 batterv to the terminals in the batterv er RI compartment in the rear of the instrument N gt gt DO NOT disconnect the battery SY Ses once runs have been stored as they on d will be lost 1 w p a With the instrument switched D a P OFF insert the lead connector of the 960079 CEL 6681 Dosimeter Microphone or the connector on the CEL 425 CEL 425 SLM Adaptor SLM Adaptor stalk into the socket Knurled on the top end of the Sleeve case with the red dot facing the front of the Red Dot dosimeter ETD Wa a 2 a A Remove the connector ONLY by pulling on the knurled sleeve pee CEL 6681 Dosimeter Microphone 01042e 5 2 Perform Acoustic Calibration Operations are controlled by a sequence of key strokes Perform a field accuracy check each time the instrument is switched ON u
14. e instruments with settings that may be reviewed by key strokes but which can be selected only by means of the dB10 or dB12 software For sound level meter operation refer to Section 7 CEL 320 360 Getting Started Page 5 However all sound Table 2 Setups and Configuration Files level measurement Parameter settings that do not modify preset parameters can be set from measurement protocols can be changed by using the inst keys the keypad There are three ake pues All available parameter settings can be changed overlapping measurement from a PC by means of dB10 or dB12 Software ranges 30 100 50 120 amp Parameter settings that modify preset measure 70 140 dB A amp C RMS ment protocols must first be saved by dB10 or weightings Linear amp C Peak e a E identity in an instrument weightings Fast Slow amp A configuration file contains a complete Impulse time weightings and instrument set of setups i e seven fixed dose setups up to 13 user defined setups one SLM energy exchange rates Q of setup and one timer setup common to all dose 3 4 5 amp 6 In dose measure setups ment mode they display Fran eier eine on an instrument can be o changed ONLY by using dB10 or dB12 to replace dose dose projected for the configuration file in the instrument by another an 8 hour period peak level configuration file loaded from the PC and measurement d
15. e warranty will then be extended for the period stated on the individual schedule Please contact your local CASELLA CEL agent for full details of this service After the warranty has expired except on approved accounts service work is undertaken against quotations and all packing and transit costs are charged extra CEL 320 360 Getting Started Page 21 11 Intrinsically Safe Models Models in the CEL 320 360 series are available with Intrinsic Safety approval for use in hazardous areas The Intrinsically Safe versions are fitted with a different firmware version but are functionally identical to the standard products They may be connected to a personal computer for setup and download of results using the CEL 6702 or 6704 Windows software packages Products rating to EEx ia IIM1 EEx ia IIC T4 II1G Intrinsically Safe Certificate Number Sira O5SATEX2027X Approved Power Supply Only the Duracel MN1604 alkaline type battery may be used in these meters 9 V radio battery The use of any other battery will invalidate the intrinsically safe certification Battery Life Approximately 30 hours under typical conditions Special instructions The battery must be replaced only in a non hazardous area The instruments must be calibrated in a non hazardous area following the same instructions as for the standard models Any repairs needed for the Intrinsically Safe models must be carried out only by an approved CASELLA CEL service
16. ement Range 70 140 dB Page 16 CEL 320 360 Getting Started There is no degradation in performance or loss of functionality following the application of electrostatic discharges The approved configuration for reference orientation as viewed by the operator is with the instrument in a horizontal position facing the noise source where the receiver of the electromagnetic field replaces the noise source 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 and connecting device configurations have similar immunity to power and radio frequency fields Pulse Range gt 53 dB Measurement Ranges Display Range dB Primary RMS range Peak at 1 kHz 30 100 41 86 63 103 50 120 55 106 83 123 70 140 75 125 103 143 Defined from 10 dB above noise floor to a crest factor limit of 5 Weightings Frequency A C and linear 20Hz 20kHz Time Fast Slow Impulse Peak Amplitude 3 4 5 6 dB exchange rates Clock Date and time can be set from the keypad Date and time can be set to PC time via dB10 and dB12 Dose Measurement Timer CEL 360 Series only Use with pre programmed delayed start and stop times or with fixed measurement durations can be selected from the keypad Start and Stop times must be programmed via dB10 and dB12 Do
17. ent Type 2 Electret Microphone Assembly for use as a dosimeter complete with clip and 0 8 m captive cable Or CEL 425 Sound Level Meter Adaptor with Type 2 14 Electret Microphone Assembly for use as a sound level meter or CEL 425 IS if I S instrument CEL 6702 dB10 Control and Download software supplied with CEL 320 CEL 6704 dB12 Control Download and Graphing software supplied with CEL 360 C6671 Communication cable to PC 016014 Alkaline Manganese Battery IEC 9LF22 060333 Users Guide A5 multilingual instructions 060335 Field Guide pocket guide 10 2 Servicing amp Warranty Arrangements To ensure its 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 therefore be quoted in any correspondence The manufacturers undertake to rectify any defect in the instrument that is 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 Page 20 CEL 320 360 Getting Started The warranty period runs for 12 months from the date of receipt of goods with exceptions on certain specialised components supplied by other manufacturers which
18. he following special condition of certification applies Under certain extreme circumstances the non metallic parts incorporated in the enclosure of this equipment may generate an ignition capable level of electrostatic charge Therefore when it is used for applications that specifically require group II category 1 equipment the equipment shall not be installed in a location where the external conditions are conducive to the build up of electrostatic charge on such surfaces Additionally the equipment shall only be cleaned with a damp cloth CEL 320 360 Getting Started Page 1 Page 2 CEL 320 360 Getting Started GB CEL 320 360 SERIES USERS GUIDE US If you want to get on and use the instruments without any background information skip Sections 3 5 and go straight to Section 6 Issue 2 1 Display Battery Condition Data is Being Recorded Under range has Measurement is Paused Occurred Frequency Weighting Overload has Occurred Indicates Active Option Keys Measurement Identity or Date Current Units Current Data or Time d JILIN Current Mode Pressing the MENU SLM key will select each 01037e of these in turn 2 Keys Display Switches instrument ON OFF Changes operating mode Accesses stored data Select active options from the current menu Starts Pauses Restarts a measurement record Confirms actions of other keys Stops a measurement when followed fe by C
19. n They have been tested according to the standard delivery schedule and comply with the following standards EN 50081 1 1992 EN 50081 2 1993 Generic emission standards for residential commercial light industry and industrial environments EN 50082 1 1992 EN 50082 2 1995 Generic immunity standards for both RF fields and electrostatic discharge for residential commercial light industry and industrial environments 9 3 Default Parameter Settings Setup OSHA MSHA DOD ACGIH 1S085 IS090 METER SLM Measurement70 140 70 140 70 140 70 140 70 140 70 140 50 120 70 140 range dB Frequency A A A A A A A A weighting Time weighting S S S S F F F S Amplitude 5 5 4 3 3 3 3 3 weighting Peak frequency L L L L C C C L weighting Threshold 1 80 80 80 80 70 70 0 x dB Page 18 CEL 320 360 Getting Started Setup OSHA MSHA DOD ACGIH IS085 15090 METER SLM Threshold 2 90 90 x x x x x x dB Criterion dB 90 90 85 85 85 90 0 x LN A L10 L10 L10 L10 L10 L10 L10 x LN B L50 L50 L50 L50 L50 L50 L50 x LN C L90 L90 L90 L90 L90 L90 L90 x LN D L95 L95 L95 L95 L95 L95 L95 x LN E L99 L99 L99 L99 L99 L99 L99 x Profile interval 1 min 1 min 1 min 1 min 1 min 1 min 1 min x Profile 1 Lavg Lavg Lavg Lmn Leq Leq Leq x Profile 2 Leq Leq Leq Leq Lmx Lmx Lmx x Profile 3 Lmx Lmx Lmx Lmx Lmn Lmn Lmn x Profile 4 Lpk Lok Lpk Lpk Lpk Lpk Lpk x Synchronise Run start in Yes Yes Yes Yes Yes Yes Yes No CEL 360 model Allow userto No No No No No N
20. n be retrieved and displayed 6 4 Review Stored Data Stored data is identified by date and measurement start time Up to 50 runs can be stored simultaneously before the memory is overwritten by a first in first out process Page 10 CEL 320 360 Getting Started Operation Press Display Shows Comments 1 Enable Data para 42 gt 7 With the instrument stopped Recall Moe Wes Se DATA La MIN 10 3 9 00 pressing _ displays the DATA Start Date amp Time for the most recently stored run 2 Review 4 gt Select Start Date amp Time for Stored Runs re required run for example peat fy Tam MOIMAN a LIN U g 1 LILI 4 June 09 10 00 C 3 Review B N Shows where data from the Stored Data f selected run is stored store 3 ki He l up and on a CEL 360 indicates the T number of completed profile periods 4 Review The display cycles through tored data l sek m data from the selected run repeat LALAT NI f F A d U see Section 9 4 Ku J N Some of these displays offer Pressing as for the and options that show CEL 420 460 series will further parameters also cycle the display If a printer is connected and switched on the second data display shows PRINT READY see Section 6 5 6 5 Print Standard Report With the dosimeter switched OFF use both the C6671 Cable supplied with all CEL 320 360 series instruments and a CEL 6672 Cable to connect the instrumen
21. o Yes Yes change set up Reference 29CFR 30CFR62 0 DoD DHHS Pub Noise at Noise at CEL CEL document 1910 95 UMHRPEL Instruction 98 126 Work Work suggestion suggestion 6055 12 Regulations Regulations 1989 1989 9 4 Parameter Identities The following time weightings and other identities may be shown A A weighting C C weighting L Linear S Slow F Fast I Impulse Q Energv conversion factor PK Peak MX Maximum MN Minimum EQ Equivalent continuous level AV Average level EP v Noise dose normalised to a user selected variable period of hours and minutes When the period is set to 8 hours this will be shown a EP d TWAv Time Weighted Average is the normalised time averaged sound pressure level with the selected frequency and time weighting that represents Note This parameter can be enabled only via the dB10 or dB12 PC software CEL 320 360 Getting Started Page 19 the total Avg of a person s workplace noise exposure averaged over a user selected variable period of hours and minutes This unit is specified in the USA OSHA standard 1910 95 published in 1983 When the period is set to 8 hours the unit will be shown as TWA N Percentile sound level AE Sound exposure level 10 Parts Servicing amp Warranty 10 1 Schedule of Parts A complete Noise Dosimeter or Sound Level Meter consists of CEL 320 360 Noise Dosimeter as applicable IS if IS model Either CEL 6681 or CEL 6681 IS ifl S instrum
22. on a CEL 360 indicates the number of completed profile periods When the printer is connected and switched on the second displav shows PRINT READV If the printer is off the display will show PRINT OFF The displav shows busv plus print messages while printing the data set from the selected run in standardised format for measurement protocol used Operation as a Sound Level Meter In SLM mode the instrument operates as a Type 2 sound level meter using settings made via the keypad however this mode cannot store data For storage of sound level data load the Meter setting from the setup list Section 6 1 then operate as a dose meter Section 6 2 Connect the CEL 425 SLM Adaptor as described in Section 5 1 perform an acoustic calibration as described in Section 5 2 then proceed as follows Operation 1 Start from the final Start Up Display 2 If required change Mode Press MENU Re peatedly Display Shows iG 408 Ad dB 845 Z TIN LE L Zu H LU SLM Page 12 CEL 320 360 Getting Started Comments The last used measurement mode will be selected This is operation as a SLM with the current A weighted Fast level Lar displayed SLM mode can be selected only while a microphone is fitted Operation 3 Review SLM Measurements times 4 Final Measurement 5 Switch OFF Press Display Shows several
23. se Measurement Start Stop Delay Timer CEL 360 Series only Delay intervals can be set only via dB10 and dB12 Settings can be specified for up to 16 sets of start and stop times up to 30 days ahead The clock indicates the time remaining before the next run starts Dose Measurement Elapsed Time Timer CEL 360 Series only Measurement elapsed times run durations can be selected from the keypad The following options are available Disabled 5 10 15 30 minutes 1 2 4 8 10 12 24 hours Under Range Indication 1 dB below the bottom of the selected range CEL 320 360 Getting Started Page 17 Overload Indication 140 1 dB RMS i e 0 1 dB above the top of the selected range Maximum Peak Value 143 0 dB Peak Linear i e 3 0 dB above the top of the selected range Non Linear Distortion Error lt 1 dB at frequencies gt 10 Hz Stabilisation Time 1 second Operating Environment Temperature 0 5 dB 10 C to 50 C Atmospheric Pressure 65 108 kPa Humidity 0 5 dB 30 90 non condensing Magnetic Fields Negligible Vibration Negligible Battery 9 V 6LF22 or equivalent for normal use lifetime at least 35 Hours S Models have a minimum battery life of 30 hours Dimensions and Weight 120 x 65 x 30 mm 280 g IS Models 380 g 4 8 x 2 6 x 1 2 inches 9 oz IS Models 120 oz 9 2 CE Compliance All models in the CEL 320 360 Series comply with the EMC Directive 89 336 EEC of the European Unio
24. sing a CEL 110 2 Class 2 or CEL 110 1 Class 1 Calibrator as follows It is also recommended that another acoustic calibration be performed immediately after completing a measurement run The calibration levels from both before and after are stored with the run When the second calibration occurs much later provided the same microphone assembly is used the second level is attached to any stored run that has no second calibration CEL 320 360 Getting Started Page 7 Fit the CEL 4726 Coupler Calibrator supplied with the calibrator CEL 110 1 or 110 2 into the calibrator cavity making sure it is firmly in contact with the shoulder in the cavity To aid removal the coupler flange does not fit close against the calibrator housing O Ring lt Fit the microphone into the coupler cavity again ensuring that it makes contact with the shoulder in the coupler cavity i as SO Se lt i gt Shoulder i Microphone Then follow these instructions a Coupler 1 4 A la Microphone 980057 Operation Press Display Shows Comments 1 Switch the NN Start Up messages show instrument SZ e Instrument Type ON b JIN Iie ung Serial Number when set Print when printer cable connected Firmware Version finishing with the Last Used Operating Mode 2 Change wenn B To
25. t to a Centronics printer as shown ML 06672 Active fe ctive allows the Printer Cable dosimeter to if X C6671 recognise the ll i printer cable i during its Start y Up sequence a ER CEL 320 On Centronics Printer CEL 360 10494 stored data can gyo40e Series be printed as the microphone and printer cannot be connected to the dosimeter at the same time because they both use the same Red Dot connector Operation Press 1 Switch l instrument N N Display Shows Comments Switch on both dosimeter and Tun 135 Switch the printer On Line CEL 320 360 Getting Started Page 11 Operation Enable Data Recall N 3 Select Stored Run For Printing 4 Review Stored Data 5 Activate Printing 6 Print Hard Copy 7 Press Pali Sii KS DATA ka Zi ed repeat Display Shows gt oT nmdonn G TIN 103900 a ED Tin MO INNN u TUN 09 1000 U PRINT f ERd5 PRINT bUSJHQ Comments With the instrument stopped display the Start Date amp Time for the most recently stored run as described in Section 6 4 Select Start Date amp Time for required run for example 4 June 09 10 00 Continuing to press will eventually offer PRINT READY followed by a PRINT ALL runs option that is enabled by pressing S Shows where data from the selected run is stored store 3 and
26. tal figure of eight configuration starting approximately 10 cm above the instrument The figure of eight is constructed of four even folds of the microphone cable 14 cm across The figure of eight is then secured at each end and in the centre The microphone housing is then secured approximately 10 cm above the centre of the figure of eight configuration The front of the instrument is facing the principal direction of an emitter or receiver of radio frequency electromagnetic fields 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 and connecting device configurations have similar immunity to power and radio frequency fields Sound Level Meter Integrating Sound Level Meter Standards ANSI 1 4 1983 Type S 1 for sound level meters IEC 60651 1979 Type 21 for impulse sound level meters IEC 60804 2000 Type 2 for integrating sound level meters ANSI 1 43 1997 for integrating sound level meters The sound level at which the sound level meter conforms to specifications of clause 12 of IEC 60651 is 74 dB The instrument has no additional connector points during normal mode of operation The configuration for the normal mode of operation is specified with the microphone connected via the standard preamplifier Frequency weighting A weighted Sound Pressure level Time Constant Fast Measur
27. uration For countries that are subject to European Union regulations or the equivelent ISO standards these instruments measure the daily sound exposure level LAeq 8hr Path according to IEC 1252 which is identical with the Lex gh required by ISO 1999 while for USA OSHA MSHA regulations they measure the Time Weighted Average level TWA When used as a sound level meter they display sound level maximum sound level minimum sound level peak time averaged LAeq or LAvg sound levels and sound exposure level SEL 4 3 CEL 360 360S Logging Noise Dosimeters In addition to the features available to the CEL 320 Dosimeters the following additional features apply to the CEL 360 and CEL 360S These instruments are recommended for detailed measurements as they include extended processing and memory functions There are automatic run timing facilities controlled by the built in clock and time history recording capabilities that allow up to 10 profiles to be saved with each dose DATA result set in a separate profile store Sampling times can be specified between 1 s and 1 hour by dB10 and dB12 software while profile storage is in excess of 220 000 data points where any single run can use up to 99 999 points The instruments are able to measure and save up to five user specified Ln values exceedance level percentiles Run durations specified via instrument keys by dB10 or dB12 and start and stop times preset via dB10 or dB12 can be swit
28. with a dashed outline The Timer is now ON so that any start and stop times loaded via dB10 or dB12 will be used UNLESS Synchronisation SYNC or Duration DUR settings are enabled as in steps 3 and 4 SYNC allows synchronisation to the next profile boundary i e to whatever interval has been set by the PC software if kal Press to enable or disable The profile interval will also be shown DUR allows the user to select a run Duration time When a run duration period is shown here or SYNC is ON these take precedence over the Timer settings so that any preset start and stop times WILL NOT BE used Operation 5 Review Repeat setting 6 Review Start End Times 7 Review Start End Times 8 Review further Start EndTimes Press Repeat Display Shows 1 tor GFF 6 46 Start End times Comments Press a if to enable use and to select the following durations Off 5 10 15 30 minutes 1 2 4 8 10 12 24 hours ra w t then confirm with _ Rept allows the user to select up to 49 repeats of the timer settings er 4 X Press to enable use and to select the number of repeats FR l can 4 then confirm with 7 This is the First Beginning start time set by dB10 or dB12 dd hh mm The day setting is the day of the month When day is indicated measurement
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