- Castle Group Ltd
Contents
1. be displayed CONFIRM Press ENTER to reset the chosen data or another button to decline the RESET By pressing ENTER you will note that the SPL is then displayed WARNING USE THE RESET BUTTON WITH GREAT CARE AS PREVIOUSLY ACCUMULATED DATA MAY BE LOST INSTRUMENT STATUS The status of the instrument can be ascertained by the use of the STATUS button Press STATUS BAT aul Repeated presses of the STATUS button will display the parameters listed below depending on the instrument type dBA SLOW Indicates the current time and frequency GA208 214 weighting RUNNING _ Indicates the instrument is running PAUSED Indicates the unit is not updating any ALL Parameters A BAT mil gt 70 battery capacity remaining LL BAT gt 50 battery capacity remaining BAT gt 30 battery capacity remaining BAT Battery needs replacing 90 3 Indicates the current Exchange and Criterion GA255 level VER1 3 Indicates the software version number CHANGING RANGE GA208 214 range change can be performed by the use of the UP DOWN arrow buttons while in the DISPLAY mode instrument displaying SPL dBA LP etc Press W repeatedly until the required range comes into view press ENTER The instrument will return to the SPL You will notice that the symbol gt indicates the current selection as you move around the range options TIME WEIGHTING GA208 214 A weighting change can be performed by the use of the SETUP butto2. 94 0 The calibration will be performed at a default of 94 0dB but may be changed using the UP DOWN arrow buttons Position the calibrator firmly over the microphone Turn the calibrator on to the 94dB or 104dB setting Press ENTER after deciding on the calibration level of 94 0 dB or 104 0 dB Press ENTER and the instrument will calibrate to the level of the calibrator The displayed number may change from a higher or lower value as the instrument calibrates to the chosen level Press ENTER and the display will return to SPL for the GA208 and GA214 and DOSE for the GA255 If the input level is not within 3dB of the chosen reference level then the display will show CAL NOW Check to make sure the calibrator is switched on and emitting the correct level before proceeding as indicated above The instrument is now calibrated Reset the instrument by pressing the RESET button until ALL is displayed then press ENTER twice This will clear readings due to calibration The instrument is now ready to take measurements DISPLAYING PARAMETERS DISPLAY Displays the parameters that are being measured Repeated presses of the DIS PLAY button scroll round the parameters listed in the table shown below The display will also show the following message when appropriate UR when the instrument is Under range OR when the instrument is Over range Except GA255 since no range change facility The display will flash when the instrumen
3. CASTLE GROUP LIMITED POPULAR RANGE GA208 GA214 AND GA255 USER MANUAL COMPANY INTRODUCTION Thank you for buying a Castle product we are sure you will find both the goods and the service to be of the highest quality but if not then please feel free to write to us so that we can deal with any concerns you may have This manual is designed to show you the operation of the goods you have purchased If you would like to become a competent person then you may like to know more about our Competent Persons training course for the Noise at Work Regulations It is our aim for Castle Group Ltd to provide a complete range of Noise and Vibration products and Services of the highest standard If you would like to know more about any of our other products and services then please complete the reply paid card in this manual and return it to us for prompt action or telephone on 44 0 1723 584250 Simon Bull RS Sales and Marketing Director Precautions Operate the unit only as described in this manual e The Popular Range of instrument are precision sound level meters Protect the instrument from shocks and vibrations e Use only the microphone preamplifier as supplied with the unit Take special care not to touch the microphone top as it can easily be dam aged e Ambient conditions for operation of the unit are as follows temperature range 10 to 50 C relative humidity 30 to 90 e Protect the unit from water dust
4. D LEVEL BSEN 606511994 TYPE Battery compartment ENTER door to open slide the S door downwards then se turn clockwise N u SETUP RESET RY gt DISPLAY a STATUS HOLD CE POWER SWITCHING ON AND OFF Press and hold the POWER button until the instrument name appears then release the button Allow the instrument to scroll through its start up sequence before pressing any other button this will take approximately 3 seconds WARNING DO NOT PRESS ANY BUTTONS DURING START UP SEQUENCE Inadvertent power down while the instrument is being used can be prevented by selecting the LOCK mode except GA208 refer to the LOCKING THE INSTRUMENT section When switching the instrument on the instrument selects the appropriate range for the sound environment During this time a downrange message may appear On the GA214 all previous settings are restored this includes range filter and time constant To switch off press and hold the POWER button until the display goes blank then release the button THE MICROPHONE The microphone fitted to your instrument is a type 2 instrumentation grade 1 2 inch pre polarised condenser microphone The microphone is not removable The GA255 is fitted with a DOSE meter microphone in order that it can be at tached on the collar of a noise exposed worker WARNING DO NOT TWIST THE MICROPHONE ACTIVATING FUNCTIONS ALL Castle instruments operate with an intui
5. e disabled including the POWER button The function is often used to avoid inadvertent operation or tampering while the instrument is being used Press SETUP LOCK To LOCK the instrument press SETUP until the instrument displays then LOCK then press ENTER The status of the Battery will be displayed while the instrument is locked To UNLOCK the instrument Press RESET ENTER then RESET respectively PAUSING PLAYING GA214 255 new Wh All functions can be held so that they do not update by pressing the I P button Once PAUSED the display may be read as normal allowing the user to take note of any required readings For normal operation of the instrument to continue press the gt button once more HOLD GA208 Press HOLD All functions can be held so that they do not update by pressing the HOLD button Once PAUSED the display may be read as normal allowing the user to take note of any required readings For normal operation of the instrument to continue press the HOLD button once more RESETTING PARAMETERS RESET Used to RESET data Press RESET Repeated presses of the RESET button will display the parameters below MAX Only resets the maximum RMS SPL L PEAK Only resets the PEAK LL OVER Only resets the 115dB A flag GA255 115 ALL Will reset all data MAX L PEAK and RUN To reset simply scroll round the options until the desired function is found then press the ENTER button The following message will
6. extreme temperatures humidity and direct sunlight during storage and use Also keep the unit away from air with high salt or sulphur content gases and stored chemicals e Always turn the unit off after use Remove the batteries from the unit if it is not to be used for a long time a week or more e Clean the unit only by wiping it with a soft dry cloth or when neces sary with a cloth lightly moistened with water Do not use any sol vents cleaning alcohol or chemical cleaning agents e Take care that no conductive objects such as wire metal scraps con ductive plastics etc can get into the unit e Do not try to disassemble or alter the unit Otherwise type certification will become invalid In case of an apparent malfunction do not at tempt any repairs Note the condition of the unit clearly and contact the supplier or Castle Group direct CONTENTS TITLE INTRODUCTION USING THE MANUAL BATTERY INSTALLATION SWITCHING ON AND OFF ACTIVATING FUNCTIONS CALIBRATION DISPLAYING PARAMETERS LOCKING THE INSTRUMENT PAUSE AND HOLD RESETTING PARAMETERS INSTRUMENT STATUS CHANGING RANGE TIME WEIGHTING CRITERION AND EXCHANGE TECHNICAL INFORMATION INSTRUMENT SPECIFICATION WARRANTY AND AFTER SALES SERVICE PAGE NO 1 1 10 10 11 11 12 15 INTRODUCTION The Castle GA208 GA214 and GA255 are part of Castle s Popular range and have been designed to meet the requirements of no
7. ise measurement to type two standards They may be used in industry or for general purpose measurement to ascertain noise levels accurately yet economically This manual contains complete operating instructions for the above named instruments read it carefully and you will quickly become familiar with your instrument If you have problems with the operation of the instru ment please call our Technical help line on 44 0990 133 048 or fax 44 0 1723 583728 USING THE MANUAL In the course of this manual a named button written in BOLD means press that button E g ENTER means press the ENTER button Since this manual covers the operating instructions for three instruments the shaded areas of the title serves to inform the user which functions are present on your instrument E g The following title informs you that this function is only applicable to the GA208 214 CHANGE RANGE GA208 214 BATTERY INSTALLATION ALL To prepare the equipment for use a heavy duty battery type 6LR61 should be fit ted such as Ever Ready 6LF22 Gold Seal Duracell MN1604 or Kodak U9VL Open the battery door cover by sliding the cover downward towards the bottom of the instrument The cover will now swing open exposing the battery compart ment Insert the battery observing the correct polarity as marked on the case wall Close the battery compartment door The instrument is now ready for calibration and use 126 7 LP Ey 08 OUN
8. kshire YO11 3UZ Telephone UK 01723 584250 INT 44 1723 584250 Fax UK 01723 583728 INT 44 1723 583728 E MAIL sales castlegroup co uk Internet http www castlegroup co uk Any misuse or unauthorised repairs will invalidate the warranty Damage caused by faulty or leaking batteries is not covered by the warranty 15 NOTES H Research amp Development Manuals Instruments Popular Range Current manual Popular Range manual HB 0208 007 A5 Issue D
9. n Press SETUP WTG Press SETUP until WTG lt Ent is displayed Press ENTER and the instrument will display the current WTG SETUP To change WTG use either the up arrow or down arrow button Pressing these two buttons allows you to scroll through the four available weighting choices A SLOW A FAST C SLOW or C FAST A weighted Impulse and C weighted Im pulse available on the GA214 You will notice that the symbol gt indicates the current selection as you move around the range options CRITERION EXCHANGE GA255 The Criterion and Exchange level can be changed by the use of the SETUP but ton Press SETUP Press SETUP until CRIT EXC is displayed Press ENTER and the instrument will display the current CRIT EXC SETUP To change the CRIT EXC use either the up arrow or down arrow button Press ing these two buttons allows you to scroll through the four available criterion and exchange choice 90 3 85 3 90 5 or 85 5 You will notice that the symbol gt indicates the current selection as you move around the range options 11 TECHNICAL INFORMATION ALL INSTRUMENT SPECIFICATION The individual characteristic applies to each instrument unless specifically worded otherwise Measuring Range 40 140 dB GA214 208 30 130 dB GA214 Impulse Each range has a primary indication of 60dB 40 100 60 120 and 80 140 For the Impulse meter 30 90 60 120 and 80 130 Detector Characteristics RMS Peak Fre
10. om ae 0 320Pa hr 0 9999 90 140 dBlin Note that the maximum continuous integration time is 24 hours Standards BS6402 1994 Personal Sound Exposure Meters GA255 BS EN 60651 1994 Sound Level Meters Type 2 GA208 214 BS EN6698 IEC804 Type 2 GA214 Integrating Averaging Sound Level Meters Overall Dimensions 150 x 60 x 29mm Weight 220g with batteries Accessories Available GA601 Single level 94dB acoustic calibrator GA602 Dual level acoustic calibrator 94 104dB 10 X 9V Batteries 14 WARRANTY AND AFTER SALES ALL SERVICE Castle Group design and manufacture precision instruments which if treated with reasonable care and attention should provide many years of trouble free service In the event of a fault occurring during the warranty period the instru ment should be returned to Castle Group Ltd in its original packaging or to an authorised agent Please enclose a clear description of the fault or symptom Details of the warranty cover are available from Castle Group Ltd or an authorised agent All instruments are designed to meet rigid British and International Stan dards An annual calibration is recommended to ensure that these high standards are maintained particularly when the instrument readings are to be used in litigation or compliance work For warranty and service return to The Service Department Castle Group Ltd Salter Road Cayton Low Road Industrial Estate Scarborough North Yor
11. quency Weighting GA208 214 A C weighted to IEC651 Type 2 GA255 A weighted to IEC651 Type 2 Time Weighting GA208 214 Slow 1S Fast 125mS to IEC651 Type 2 and Impulse on the GA214 GA255 Slow 1S to IEC651 Type2 DOSE Exchange Rate GA255 3dB 5dB Criterion Level GA255 90dBA for 8 hours 100 DOSE selectable GA255 85dBA for 8 hours 100 DOSE selectable Peak 90 140dB 200Pa Linear Frequency Weighted Overload Positive overload condition shown when Crest Factor is exceeded Display Digital 1 x 8 alphanumeric Digit size 7mm x 5mm 12 Microphone Preamp Microphone Preamp Calibration Batteries Temperature Effect of Humidity Vibration Magnetic Field Pre polarised 1 2 12 7mm Condenser Microphone Sensitivity 12mV Pa Capacitance 15pF Preamp output impedance 550R Instrument acoustically calibrated using GA602 at 94dB or 104dB at 1KHz Digital adjustment Type IEC No 6LR61 Life Duracell MN1604 gt 40 hrs continuous Ever Ready 6LF22 gt 20 hrs continuous Operating range 10 to 50 C Storage without batteries 20 to 70 C Effect of temperature lt 0 5dB from 10 to 50 C lt 0 5dB from 30 RH to 90 RH A 40Hz 1m s vibrating force produces no noticeable effect No noticeable effect 13 DISPLAYED PARAMETERS L 130dB A GA208 214 sr Er EXPOSURE TIME _ 0 72hours beg 0 SP L M D L P P eq 1300B A AX 30 130dB A 0 140dB A me Y
12. t is Under range Over range or the Crest factor is being exceeded indicated by OVERLOAD You may leave the display menu by pressing any other menu button The table shown below lists the display parameters available on each of the Popular Range units as they appear by repeat pressing the DISPLAY button GA208 GA214 GA255 SPL SPL DOSE MAX LEQ PROJ LP Run Time LEP Run Time MAX PLE Overload LP Run Time LEP LP 115 Indicator 115 Indicator Overload 115 Time Pa Overload The table on the following page is a breakdown of the display parameters and is accompanied by an explanation of each one DISPLAYING PARAMETERS DISPLAY DISPLAY DESCRIPTION INSTRUMENT 103 7dBC Sound Pressure Level SPL A or C GA208 214 weighted LEQ 93 2 Displays the LEQ Maximum SPL GA208 214 PROJ Displays the projected DOSE assuming an 8 hour shift Displays the Lepa only valid when worn GA214 255 for the full shift Displays the projected Lepa assuming an 8 hour shift Indicates the energy that has been received in Pa hours Indicates whether the 115dBA flag has been exceeded Indicates if the 115dBA flag has been exceeded followed by TIME when last exceeded Indicates when an OVERLOAD has occurred ETE DOSE 67 Dose dependent on exchange and criterion GA255 LOCKING THE INSTRUMENT GA214 255 The LOCK button is used to lock the instrument keypad All functions are therefor
13. tive menu system The menu is selected by using the dedicated buttons on the keypad A scrolling menu exists within this function holding the button down will allow you to scroll through the menu In the example below the displayed messages may vary due to different instru ment functions and configurations Press STATUS Press STATUS Press STATUS Press STATUS Press STATUS The status menu is therefore circular and can be easily scrolled through by suc cessively pressing the STATUS button This format is repeated for the other functional buttons on your instrument It should be noted that the colour matched buttons are used with the ENTER but ton to change an operating mode CALIBRATION ALL WARNING ENSURE A SUITABLE CALIBRATOR IS ATTACHED AND WORKING BEFORE COMMENCING The calibrators recommended for use are the Castle GA601 607 calibrators which supply 94dB relative to 20uPa pressure at a frequency of 1KHz Turn the instrument on by pressing the POWER button Press STATUS until a good battery condition is shown Replace the battery if the indication is low i e one or two bars remaining Press SETUP CAL lt ENT Note for GA208 214 Select the 40dB range if calibrating to 94dB or 60 range if calibrating to 104dB by pressing the V or A button until the appropriate range is displayed if required refer to the CHANGING RANGE section Press the ENTER button Press ENTER and the instrument will now display gt
Download Pdf Manuals
Related Search