Tremetrics RA650 Operations Manual
Contents
1. A i A 7 EARPHONE HANDSWITCH SERIAL NO e o A Audiometer xa P Ofa o K Module 4 8 EARPHONE HANDSWITCH O SERIAL NO 4 e _ 8 Ok Audiometer XXXX XXXXX o o Module 3 7 SERIALNO EARPHONE HANDSWITCH Audiometer S y e o seo ls A XXXX XXXXX a Dn 0 O Module 2 6 M SERIAL NO EARPHONE HANDSWITCH Audiometer O Lesl on ot Of Module 1 5 MSG gt MC O e mic 4x4 COMPUTER Control O in o w cee O E Eve RJ 45 RS 232 Module 90 240 VAC 50 60 Hz ON OFF 11 a Figure 1 RA650 Audiometer Chassis with Installed Controller and Four Audiometer Modules Tremetrics RA650 Operations Manual 1 3 RA650 Audiometer Control Module Refer to Figure 2 below which displays a RA650 Audiometer Control Module 1 DNA A 9 Stations 1 4 Ensure that the Control Module is installed in Chassis A and is connected to the computer via an RS 232 cable Stations 4 8 Optional Ensure that the Control Module in Chassis A is connected to the Control Module installed in Chassis B using a cable with RJ 45 connectors attached to the 4 4 jacks Ensure that the Line jack is connected to the multimedia connector on the computer Ensure that the MIC jack is connected to the microphone Use a screwdriver to adjust the microphone volume at the MIC set screw Confirm that the MSG and PWR lights are working MSG a 1 MIC o 4x4 A pS o LINE MIC COMPUTER2. 2 1 6 Right Ear Testing Display 2 1 7 Examiners SSN Display 2 1 8 Subject SSN Display 2 1 9 Control Buttons 2 1 1 Menu Commands See the separate section in this document describing the various tool bar menus and their commands 2 1 2 Station Number This part of the Main window displays the active testing station numbers Inactive testing stations are shown grayed out You can right click the mouse button on any active station number to display the Station Popup menu which allows you to select station specific functions 2 1 3 Pulse or Continuous Tone Display This part of the Main window displays whether the hearing test pulse for a specific station is pulse P to the left of the station number or continuous C Tremetrics RA650 Operations Manual 2 1 4 Status Display This part of the Main window displays the current status of a specific testing station At any time each station has one of the following statuses Offline The station has been removed from the list of available testing stations Paused The station is in a temporary pause state Reset This station has just been reset and is ready for the next hearing test Testing This station is currently testing a subject Saved This hearing test data for this station has been saved Error An error condition has occurred at the station See Fault Code Instructions and Responses for further explanation 2 1 5 Left Ear Testing Display The left ear is usually tested first
3. Failed to validate at three frequencies Individual Instructions None Response Re instruct the individual on the entire test procedure Press the Reset button then press Start You will need to reassign the individual to a station Group Instructions Sit quietly and I will retest you when the group finishes Response Re instruct the individual on the entire test procedure Press the Reset button then press Start You will need to reassign the individual to a station 20 Tremetrics RA650 Operations Manual Error EA Contralateral of 40 dB recorded Response Will not stop the test Automatically re tested at the end of the test No operator intervention required Error EB Difference between the current test and baseline data is gt 15 dB Response Will not stop the test Automatically re tested at the end of the test No operator intervention required Error EC Difference between adjacent frequencies is gt 50 dB Response Will not stop the test Automatically re tested at the end of the test No operator intervention required Error ED HTL gt 90 dB or 500 Hz gt 30 dB Response Will not stop the test Automatically re tested at the end of the test No operator intervention required Error EE No responses at frequencies other than 1000 Hz Test Response Will not stop the test Automatically re tested at the end of the test No operator intervention required Error EF No validation at frequ
4. Tremetrics RA650 MICROPROCESSOR GROUP AUDIOMETER OPERATIONS MANUAL jelelel A it IIA ma Ss uai a AR p ni TELLE IKEZMETRICS Tremetrics RA650 Operations Manual WARRANTY TREMETRICS Seller warrants the goods sold will conform to all pertinent specifications including performance specifications drawings and approved samples as furnished Seller also warrants said goods to be free of defective materials and workmanship This warranty is in lieu of all other warranties express or implied SELLER MAKES NO WARRANTY THAT SAID GOODS ARE FIT FOR ANY PARTICULAR PURPOSE NOR ANY WARRANTY AS TO THE MERCHANTABILITY OR QUALITY OF GOODS SOLD EXCEPT AS HEREIN STATED All claims for alleged defects of goods under this warranty shall be deemed waived unless made in writing and delivered to Seller within twelve 12 months after date of shipment unless otherwise specified herein below and on any such claims Seller has the option of inspecting the goods claimed defective at the Buyer s place of business or having them returned to Seller for inspection Instrument parts that have been repaired or replaced during the warranty period are themselves warranted only for the remaining un expired portion of the original warranty This warranty shall not apply where goods have been subject to misuse neglect accident or improper application or have been repaired or substantially altered by others nor
5. e 2 O O O o PWR RJ 45 RS 232 Figure 2 RA650 Audiometer Control Module 1 4 RA650 Audiometer Module Refer to Figure 3 below which displays a RA650 Audiometer Module 1 2 3 Confirm that the Audiometer Serial Number matches the headphone serial number Confirm that the Earphone with the same serial number is plugged into the Earphone jack Confirm that the station Handswitch is plugged into the Handswitch jack and activates the LED for the Audiometer module Repeat Steps 1 through 3 for each station audiometer module RESPONSE EARPHONE HANDSWITCH SERIAL NO o 0 C ON q 10 6 0 XXXX XXXXX XXX Figure 3 RA650 Audiometer Module Tremetrics RA650 Operations Manual 2 Software Operation This section describes the operation of the following seven software features 2 1 All Station Display Main Window 2 2 Station Popup Menus 2 3 Menu Commands 2 4 Control Buttons 25 Dialog Boxes 2 6 Procedures 2 7 Fault Codes 2 1 All Station Display Main Window The Main window displays all stations and provides full control of the functions and features of the RA650 Group Audiometry System In addition it allows the operator to monitor the testing progress of test subjects at all stations simultaneously This window contains the following controls and displays 2 1 1 Menu Commands 2 1 2 Station Number 2 1 3 Pulse or Continuous Tone Display 2 1 4 Status Display 2 1 5 Left Ear Testing Display
6. one for each chassis and eight audiometer modules to accommodate eight testing stations Computer and Monitor RA650 RA650 Microprocessor Microprocessor Audiometer Audiometer Rack 2 Rack 1 Printer 4 id 3 Audiometer 4 Modules RE COM 1 LPT 1 oo oo To 90 240 VAC Power Strip with 50 60 Hz Outlet Surge Protection Figure 6 Power Connections of Two RA650 Group Audiometer Chassis with Installed Controllers and Eight Audiometer Modules 25 Tremetrics RA650 Operations Manual 4 1 2 Control Module Connections Figure 7 presents an illustration of the RA650 Audiometer Control Module 1 Connect the 9 pin RS 232 cable from the Control Module on RA650 Chassis 1 to the available communication port on the computer Connect the stereo multimedia cable from the RA650 Control Module Line jack to the sound card on the computer if the sound card is available 4x4 COMPUTER RS 232 Figure 7 RA650 Control Module Connect the microphone cable to the MIC jack on the RA650 control module Optional If you are installing two RA650 chassis to accommodate more than four testing stations connect the RJ 45 cable from the 4 4 RJ 45 port on the control module of Chassis 1 to the 4 4 RJ 45 port on the control module of Chassis 2 4 1 3 Audiometer Module Connections Figure 8 displays the RA650 Audiometer Module l Connect the
7. then the right ear This display allows you to monitor the hearing thresholds at each frequency as data are captured automatically by the RA650 system As the test proceeds the AA in the screen changes to the level being tested For example the level detected for station 1 may be 35 dB at 1K 1000 Hz A level displayed with a green background signifies a bad or no response at that level while a blue background signifies a good response The operator can monitor the progress of the test As thresholds are established the results are stored for the frequency specified The test results usually proceed from left to right on the display However the right ear can be tested first by using the Right Ear First command from the Stations menu 2 1 6 Right Ear Testing Display See Left Ear Testing Display above 2 1 7 Examiners SSN Display The examiner must enter his or her social security into the database before saving a test To change the current social security number left click the mouse button on the Examiners SSN text box to open the Enter Examiners SSN dialog box 2 1 8 Subject SSN Display The social security number of each test subject must be entered into the test records prior to the saving of a hearing test To change the current social security number left click the mouse button on the station number to the left of the subject social security number to open the Enter SSN for Station dialog box 2 1 9 Control Buttons See separ
8. turn the Oscar power switch to the off position Note Your biological audiometer check is considered acceptable if the variation in threshold readings is less than 10 dB deviations of 10 dB or greater are not acceptable If the difference for any frequency is greater than 10 dB than inspect the placement of the earphones on the Oscar couplers ensuring that the cushions are properly seated Also ensure that outside noise is not erroneously triggering the Oscar Re run the test then if the problem persists you should contact your technical support resource and report the problem DO NOT USE THE STATION The baseline for the Oscar is typically between 60 and 80 dB This baseline should be established immediately after audiometer calibration Battery replacement should occur at the same time A blinking low battery light indicates that battery replacement is necessary Tremetrics RA650 Operations Manual 1 2 RA650 Audiometer Chassis Refer to Figure 1 below which displays a RA650 Audiometer Chassis with an installed controller and four audiometer modules 1 Stations 1 4 Ensure that the Control Module is installed in Chassis A and is connected to the computer via an RS 232 cable 2 Stations 4 8 Optional Ensure that the Control Module in Chassis A is connected to the Control Module installed in Chassis B using a cable with RJ 45 connectors attached to the 4 4 jacks 3 Turn the Audiometer Chassis on off switch to on
9. 2 3 3 Functions Menu The Functions menu provides the following commands Key Starts the audiometry test for all test subjects or resumes all paused Start Resume audiometer tests command Alternatively you can use the Start Resume button Double clicking the left mouse button on the desired station will also start or resume a test Play and Start F4 Allows you to play multimedia instructions prior to the start of a test When command the instructions are completed the hearing test is initiated Temporarily stops the selected audiometry test s This command can be used if a problem occurs during the administration of one or more audiometry Pause command F6 tests Alternatively you can use the Pause button Double clicking the left mouse button on the desired station will also pause a specific test in progress Talk over Pauses the test and allows you to talk over the microphone to a single Individual F5 audiometry test subject command command Alternatively you can use the Talk Over All button Pauses the test and allows you or the multimedia to talk over the microphone Talk over All Alt F5 to all audiometry test subjects simultaneously Clears all subject information and all audiometry testing information so that you can start another group of subjects Save Test command Resets audiometry test data for the selected test subjects but does not change Restart command F7 subject information that has been previously
10. Earphones and Handswitches to their respective jacks in each of the sound rooms Ensure that the station number tag on each handswitch HS X and earphone EAR X wire from Step 3 correlates with the audiometer module station number as defined by the placement in the RA650 chassis s a RESPONSE EARPHONE HANDSWITCH SERIAL NO o o XXXX XXXXX XXX o O e Figure 8 RA650 Audiometer Module Note Each set of earphones must be matched to its respective audiometer Match the Serial Number tag on each audiometer to the Serial Number tag on each earphone package Assign each earphone to the corresponding testing station 26 Tremetrics RA650 Operations Manual 4 1 4 Completed Wiring Figures 9 and 10 below illustrate all connections of a typical RA650 Group Audiometer Installation with one chassis one controller and four audiometer modules to accommodate four testing stations and all connections of a typical RA650 Group Audiometer installation with two chassis two controllers and eight audiometer modules to accommodate eight testing stations Computer and Monitor RA650 Microprocessor Audiometer Rack 1 Y Printer 014 A EJ pe si e 3 Audiometer A 2 Modules TE Microphone 4 e com 1 LPT 1 Line f t
11. bl LJ Sa Se hh V To Sound Room Stations 1 4 Figure 9 Complete Connections of One RA650 Group Audiometer Chassis with Installed Controller and Four Audiometer Modules Computer and Monitor RA650 RA650 Microprocessor Microprocessor Audiometer Audiometer Rack 2 Rack 1 Printer 8 EJ al7 4 o 6 o 5 COM 1 LPT 1 a a E LJ S LJ E J V To Sound Y To Sound Room Room Stations 5 8 Stations 1 4 Figure 10 Complete Connections of Two RA650 Group Audiometer Chassis with Installed Controllers and Eight Audiometer Modules 27 Tremetrics RA650 Operations Manual 4 1 5 Software Installation Install the RA650 operating software as directed in the Software Installation section of this manual 4 1 6 RA650 Chassis Power On Turn on power to the RA650 Chassis s using the power switch in the back Confirm that the PWR light on the Control Module s comes on 4 1 7 Computer Power On and Boot 1 Turn on power to the computer monitor and printer The computer should boot and the Windows 95 98 ME XT starting screen should appear Because the RA650 is Plug and Play compatible the computer should recognize that the RA650 is on line and ask that the driver be loaded This should happen only once Use the Start button to navigate to the RA650 program and double click to start the RA650 software program Alternatively double click on the earphone icon The RA650 main control window will appear The RA650 software will locate all
12. command If this command is disabled no check mark appears to the left of the menu command Allows you to administer the hearing test with either pulsed or continuous tones sent to the earphones This command is a toggle between the two modes of operation Pulsed Continuous Command The pulsed tone character is 0 2 second on and 0 2 second off corresponding to a 50 duty cycle with three pulsed tone presentations The continuous tone character is 1 0 seconds in duration If pulsed is enabled a check mark appears to the left of the menu command If continuous is enabled no check mark appears to the left of the menu command effectively reduces the time required to administer the hearing test Delete 8K Command If this command is enabled a check mark appears to the left of the menu command This command results in a test subject s right ear being tested first followed Right Ear by testing of the left ear This is the opposite of normal convention First command If the Right Ear First is enabled a check mark appears to the left of the menu command This command allows you to remove an enabled station from the testing group or to add a previously disabled station to the testing group This ensures that no sounds are emitted from unused headphones during group testing Enable Disable Station Command If the Stations are enabled a check mark appears to the left of the menu command E Allows you to del
13. does this warranty apply to items consumed in the ordinary course of use of the goods such as but not limited to fuses or batteries This warranty shall not apply to calibration of the earphone transducers which is subject to change through normal use Transportation charges covering returned goods are the buyer s responsibility No returns will be accepted unless authorized by Seller SELLER S LIABILITY SHALL BE LIMITED TO SELLER S STATED SELLING PRICE PER UNIT OF ANY DEFECTIVE GOODS AND SHALL IN NO EVENT INCLUDE BUYER S MANUFACTURING COST LOST PROFITS GOOD WILL OR ANY OTHER SPECIAL OR CONSEQUENTIAL DAMAGES Seller may at its discretion repair with new or factory refurbished parts replace or give Buyer credit for such defective items Items produced by third party manufacturers shall carry that warranty provided to Seller by said third party manufacturers Seller shall pass such warranty to the Buyer Tremetrics 9675 West 76 Street Eden Prairie Minnesota 55344 Telephone 800 825 0121 Tremetrics RA650 Operations Manual TREMETRICS RA650 AUDIOMETER This pure tone air conduction Audiometer manufactured by TREMETRICS was designed primarily for use in determining hearing threshold levels in comparison with standard reference threshold levels The Audiometer is a screening device that if properly operated maintained and calibrated will allow the operator to screen subjects for shifts in hearing acuity The Audiometer i
14. installed audiometers and display each installed station on the screen Note that the assigned station number is defined by the placement of each RA650 audiometer in its RA650 chassis 4 1 8 Microphone Volume Adjustment l Ze Turn on Talk Over using the RA650 software Plug in the matching earphone to a station and speak into the microphone Use a screwdriver to adjust the volume using the MIC adjustment Turn clockwise to turn volume up and counter clockwise to turn volume down Repeat to confirm volume level for all stations Use Operation instructions to perform audiometer testing 28 Tremetrics RA650 Operations Manual 4 2 Software Installation Note The diskettes that are used with the computer warrant special considerations The disks are covered in a flexible housing for protection Nevertheless they can vary in quality so the prudent user will always use the very highest quality diskettes Do not store the diskettes in an area near magnets or large motors Always store them in their proper containers Even with these precautions data on the disks can be destroyed so be sure to use your computer to make backup copies copy to another disk of the installation disks These limited precautions if followed will help to ensure good results with your computer system Completion of the RA650 Group Audiometer system installation requires one of the following operating systems Windows 95 98 ME XT or Windows NT 4 0 Windows 20
15. station error on Error Test command Frequency Order Not used at this time command RS232 Allows you to specify the Com Port that is being used Configuration command iminy Not used at this time Parameters command Displays station diagnostic messages Station Summary command 12 Tremetrics RA650 Operations Manual 2 3 5 Calibrate Menu The Calibrate menu provides the following commands Key Acoustic Calibration command Verification command Remote Verification command Daily Biological Run Test Functional command Memory command Allows you to calibrate each audiometer module Allows you to test the rise and fall times of each tone as it is turned on and off the linearity of the audiometer attenuation from 100 dB to 10dB check the total harmonic distortion signal tone on to off ratio and check the crosstalk from one ear to the other ear Allows you to verify the operation of an audiometer channel from the sound room remotely The audiometer module will automatically step through a 70 dB test tone frequency sequence starting at 500 Hz Activation of the handswitch steps to the next tone of the verification sequence Disables the check for HTL over 30 dB This is intended for the daily verification of the audiometer Performs part of the daily check The technician listens for unusual clicks or noises in the earphone at a listening station Each time the handswitch is depres
16. 00 To install the RA650 software use the following procedure 1 Insert the RA650 software disk 2 From the Windows Start Menu click Run 3 Type into the window D SETUP where D is the letter of your CD ROM drive 4 The Setup program will automatically start and prompt you through the remainder of the installation process 29 mm Tremetrics RA650 Operations Manual n INDEX 90 Day option button 17 Enable Disable Station command 6 10 Acoustical Calibration 22 Enter Data command 6 9 Adaptive Mode command 11 Enter Examiners SSN dialog box 16 18 Adjacent Frequencies command 11 Enter SSN for Station dialog box 16 17 Annual option button 17 Error 5 11 12 19 20 21 audiometer module 1 2 3 Examiners SSN 5 Audiometer Module 2 3 Exit command 7 audiometer modules 25 27 Fault Code 4 5 18 19 Automatic Retest 19 File Menu 7 baseline 1 17 Follow Up No 1 option button 17 Biological Calibration 22 Follow Up No 2 option button 17 Calibrate Menu 13 Frequency Order command 12 Calibrating Station H dialog box 16 Functional command 13 Calibration command 13 Functions Menu 8 Calibration dialog box 16 Group Testing command 10 Cancel option button 17 handswitch 1 19 20 26 Check All Stations command 9 Handswitch jack 3 Computer 23 28 hardware 23 24 25 Contents command 14 Hardware 23 Contralateral of 40 dB command 11 Help Menu 14 Control Buttons 5 How to Use Help command 14 Control Module 2 3 26 28 HTL gt 90dB or 500 H
17. E3 The first ear fails the 1000 Hz re test A validity check is performed by testing each ear twice at 1000 Hz The threshold values must be within 5 dB If this is achieved the lower of the two threshold levels is retained If this is not achieved the test is stopped the technician is summoned and the entire test is repeated e Error E4 There is no release of the hand switch button e Error E5 More than one response per frequency is given without additional tone presentations e Error E6 The retest did not validate the HTLs at the required one or two frequencies A maximum of 20 tone presentations or 60 seconds are allowed at each test frequency e Error E7 There is no validation of HTLs at three frequencies For each of the above errors the appropriate operator responses either through Talk over or the multimedia function provides additional instructions to the test subject as follows Error El No Response at 1000 Hz Test Instructions You are not pushing the handswitch when you hear the tone I will restart the test remember to push and release the handswitch as soon as you hear the tone Error E2 No validation of 1000 Hz Test Instructions Press and release the handswitch button as soon as you hear a tone even if the tone is very soft 19 Tremetrics RA650 Operations Manual Error E3 Failed 1000 Hz Retest Instructions Single Test First Time First Ear Press and release the handsw
18. K option button dialog box E Reference Following To complete a new hearing baseline reference test in which future Exposure option button hearing tests will be compared Select the Cancel button to ignore all entries and to return to the Cancel option button previous dialog box or window 2 5 5 Select a Subject dialog box This dialog box allows you to select the Last Name First Name and Social Security Number of a test subject who has been entered into the hearing test database The alternative entry method is to enter the social security number using the Enter SSN for Station dialog box Scroll to select a subject and choose the Select button 17 Tremetrics RA650 Operations Manual 2 6 Procedures This section describes the procedures for the following audiometer tests 2 6 1 Standard Audiometry Test 2 6 2 Automatic Retest 2 6 3 Daily and Yearly Calibrations It also includes a description of the Fault Codes that may arise during audiometer testing and the appropriate operator responses 2 6 1 Standard Audiometry Test Procedure Ne 10 Prepare for next test subjects SAVE THE CURRENT TEST Then click on the Reset button to clear all previous data and get ready for the next hearing tests Tests can be started at this time Enter operator s social security number Left click the mouse button on the Examiners SSN number displayed in the Main window to open the Enter Examiners SSN dialog box Ente
19. SERIAL NO x e Ok Audiometer XXXX XKXKK op oa Module 4 8 SERIAL NO a ean Audiometer XXXX XXXKX On ON Module 3 7 7 EARPHONE HANDSWITCH Audiometer TRA a er O Module 2 6 SERIAL NO pedi o Audiometer xx A oa eL O Module 1 5 MSG Me O uNe mic Xe COMPUTER Control ae R AS RS 232 Module 90 240 VAC A ON OFF Gg tl Ad ES d Figure 4 RA650 Audiometer Chassis with Installed Controller and Four Audiometer Modules 24 Tremetrics RA650 Operations Manual 4 1 1 Configuration and Power Connections 1 Configure the computer printer and RA650 hardware as shown in the following figures 2 Plug in each component but do not turn them on at this time Figure 5 shows the power connections of a typical RA650 Group Audiometer installation with one chassis one controller and four audiometer modules to accommodate four testing stations Computer and Monitor RA650 Microprocessor Audiometer Rack 1 Printer aa a t 2 3 Audiometer E s A Modules E COM 1 LPT 1 RET m de i mi To 90 240 VAC Power Strip with 50 60 Hz Outlet Surge Protection Figure 5 Power Connections of One RA650 Group Audiometer Chassis with Installed Controller and Four Audiometer Modules Figure 6 shows the power connections of a typical RA650 Group Audiometer installation with two chassis two controllers
20. aa A 2 Software Operation 2 1 All Station Display Main Window ccccccsccsssseesseceseceseeeeecenseecsaeccsaeceeeseneeeseeesaeens 1 3 Calibration Procedures 4 Hardware and Software Installation lr DR DD Bante READ O DESDE RS RR 4 1 Hardware Instala ctas ata 4 1 1 Configuration and Power Connections ccooconoccnnoccnoncconnconnnonononnnocono cnn nono cconncconncnss 4 1 2 Control Module Connections di 4 1 3 Audiometer Module Connections ccccocooooccconononccononancnonnnnoncnnnnnanonnonnnnnnronannnnccnnnnass ATA Completed a 41 5 Software Installation di aos aks ANG RAGSO Chassis P wer OM E A A AR aa 4 1 7 Computer Power On and Bossa indias 4 1 8 Microphone Volume AdjustMeDt oooooonocococccoocnconnconnnconocnnn nono nooo ncco no conc nonn crono ncnnncnns 4 2 Soriware Instala ns pass UE RCE aa naa esas SE SS Tremetrics RA650 Operations Manual Table of Contents 2 20 Station Popup MCN int ae aaa peat aaa gados ndo SEU Ty ana 2 3 Men CommandS enesis ree adegas ai Sa DU dE O da a 238 Contool B ttonss n kaa la CR A E 25r Dialogs Box sa aa n a a a a a a a Sado gees teste 26 O E 329 2 6 1 Standard Audiometry Test Procedure ooooooccnoccconccconoconnconnnonnconnnoconocnnn cono connncconncnos 2 7 cl Retest A a aa ns EN oe ca rea mae ii 28 Fault Code Instructions and RESPONSES sci c seessscasaescassvaceansicassasveresdccasararacteatunsveness mm Tremetrics RA650 Operations Manual LIST OF FIGURES Figur
21. ate section in this document containing descriptions of the various Control Button functions Tremetrics RA650 Operations Manual 2 2 Station Popup Menu This popup menu is activated by right clicking the mouse button on one of the station numbers 1 8 in the Main window The following commands in the menu are then active only for the selected testing station Commands Function Key Start Resume F2 Play and Start F4 Pause F6 Talk over F5 Reset F8 Save F10 Print F11 Restart F7 Manual F9 Enter Data F3 Enable Disable Station Daily Biological 2 3 Menu Commands The following menus are provided in the RA650 operating software 2 3 1 File Menu 2 3 2 Edit Menu 2 3 3 Functions Menu 2 3 4 Setup Menu 2 3 5 Calibrate Menu 2 3 6 Help Menu m Tremetrics RA650 Operations Manual 2 3 1 File Menu The File menu provides the following commands uke Key This command prints a report of the stations that are currently being tested Print command F11 Use the Print Setup command to open the Print Setup dialog box so that you can set printing parameters Print Setup Allows you to set printer type orientation paper size and paper source command Beond Allows you to close the RA650 software application 2 3 2 Edit Menu The Edit menu provides the following commands uke Not active at this time EE opy command Tremetrics RA650 Operations Manual
22. ates a switch that compares the HTL for the same frequency of the opposite ear and if greater or equal to 40 dB then the higher level is re tested An EA Error is displayed and the frequency is re tested automatically Compares the levels of the current hearing test to the reference baseline hearing of the subject If the baseline data is stored with the subject demographics the baseline data is downloaded to the audiometer when you enter the subjects social security number An EB Error is displayed if the difference between the current test and the baseline data is 15 dB or greater If any of these commands is enabled a check mark appears to the left of its menu command If any of these commands is disabled no check mark appears to the left of its menu command Automatically plays an error specific multimedia recording when an error occurs during a test If this command is enabled a check mark appears to the left of the menu command If this command is disabled no check mark appears to the left of the menu command Error Handling Military Error Processing command Allows you to enter the number of times that a prerecorded message will be played 11 Tremetrics RA650 Operations Manual Pro ess Errorsin Activates multimedia announcements while operating in manual mode Manual Mode command Allows you to specify the number of times that the system will automatically Reset Error Count gt start after a
23. e 1 RA650 Audiometer Chassis with Controller and Audiometer Modules 2 Figure 2 RA650 Audiometer Control Mods GS pa 3 Figure 3 RA650 Audiometer Module aio dla dei 3 Figure 4 RA650 Audiometer Chassis with Controller and Audiometer Modules 24 Figure 5 Power Connection Single RA650 Chassis ccsscssseesesecesecescesseeeeceeseacecceseesseeseseeesessens 25 Figure 6 Power Connection Multiple RA650 Chassis cecesceseesesseeseeeeeceseceaeceeeeeeesaecaecaeeaeeeneeeees 25 Figure 7 RA650 Control Modis iii A A a ia 26 Figure 8 RA650 Audiometer Module miii A det in 26 Figure 9 Single RA650 Group Audiometer Chassis vai itiaseona anais Ra Uia 27 Figure 10 Multiple RA650 Group Audiometer Chassis oooooninocononooncnnnnnnnononncnonanoononn conocieron nncnnnnn nono nns 24 Tremetrics RA650 Operations Manual Introduction This operations manual is intended as a guide in using the RA650 Microprocessor Group Audiometer It includes detailed descriptions of the operation of all hardware and software components as well as procedures for audiometer testing and calibration If major difficulties arise it is recommended that you contact Customer Service at TREMETRICS Please be ready to give a complete and accurate detail of the problem encountered 1 Hardware Operation This section describes the operation of the following hardware component 1 1 Electro Acoustic Ear Oscar This section also describes the final pre o
24. encies other than 1000 Hz Test Response Will not stop the test Automatically re tested at the end of the test No operator intervention required Error NR No response at any level of frequency presented 21 Tremetrics RA650 Operations Manual 3 Calibration Procedures Two different types of calibration procedures should be performed on the RA650 Audiometer Biological Calibration and Acoustical Calibration 3 1 Biological Calibration Biological Calibration provides an electronic calibration monitor that tests the acoustic output of each test station for 500 to 8000 Hz inclusive Calibration is provided with the Tremetrics Oscar instrument See the section in this document which describes the operation of the Electro acoustic ear Oscar Also the operator to verify pure tones without odd or distorted sounds should perform a daily functional check 3 2 Acoustical Calibration Acoustical Calibration is a password protected calibration mode in which the earphones are controlled using a 70 dB continuous tone beginning at 500 Hz The calibration date in YYMMDD format is required before the calibration is completed Y year M month and D day Certified calibration should be performed approximately once per year or as required This procedure requires the use of a calibrated sound level meter Note Only qualified personnel should perform this calibration procedure See the RA650 Microprocessor Group Audiometer Service Manua
25. entered Alternatively you can Alternatively you can use the Reset button Allows you to save the current audiometry test data to the computer hard use the Restart button Allows you to administer the hearing test manually This is accomplished by specifying the ear frequency and initial presentation level You can use the keyboard or mouse to present the first tone You can also initiate subsequent tones The level of the tone is a function of the response of the subject in accordance with the Hughson Westlake procedure Test completion is indicated on the Main window and the HTL is stored with an M to indicate that the test results were derived using the manual method Manual command Tremetrics RA650 Operations Manual Enter Data F3 Allows you to enter social security information for test subjects command This command allows you to print a hearing test report Print command Use the Print Setup command to open the Print Setup dialog box so that you can set printing parameters Retrieve Status Allows you to display all data from all stations command Check All Stations Allows you to verify that a station is installed in the module chassis command Tremetrics RA650 Operations Manual 2 3 4 Setup Menu The Setup menu provides the following commands Key Allows you to conduct group test in a common sound room Group Testing If this command is enabled a check mark appears to the left of the menu Command
26. ete the 8 000 Hz 8K Hz part of the hearing test This 10 mm Tremetrics RA650 Operations Manual ER Set Lower HTL to 00 dB command Adaptive Mode Command Check and Retest on Adjacent Frequencies command HTL gt 90dB or 500 Hz gt 30 dB command Contralateral of 40 dB command STS of 15 dB Command Multimedia Play Instructions on Error command Sets the lower hearing threshold level tested to 00 dB instead of 10 dB If 00dB is the lowest level to test a check mark appears to the left of the menu command Automatically extends the length of the hearing test to accommodate slow responses This mode increases the response acceptance window time If Adaptive is enabled a check mark appears to the left of the menu command Activates a switch that enables or disables the comparison of adjacent frequencies looking for a difference of 50 dB or greater If the difference is greater than 50 dB the frequency of the higher HTL of the adjacent frequencies is re tested An EC Error is displayed and the frequency in error is automatically re tested Allows you to automatically retest the subject in the event that the HTL was equal to or greater than 90 dB for any frequency This result will generate a ED Error condition This command allows you to also automatically retest the subject in the event that the HTL was greater than or equal to 30 dB at 500 Hz This result will generate a ED Error condition Activ
27. etup Menu 10 software 23 28 29 sound card 26 Standard Audiometry Test 18 Start Resume button 8 15 Start Resume command 6 8 15 Station Number 4 Station Popup Menu 4 6 Station Summary command 12 Status Display 5 STS of 15 dB command 11 Subject SSN 5 Talk Over All button 8 15 18 Talk Over Each button 15 TalkOver All command 8 TalkOver Individual command 8 Termination option button 17 Testing 5 testing station 25 26 27 threshold 1 5 11 19 Verification command 13 IKEZSMETKICS Information disclosed herein may not be reproduced in any form without the express permission of TREMETRICS Copyright O 2002 TREMETRICS 1162 0203 Rev A 7 02
28. itch button as soon as you hear a tone even if the tone is very soft Response Start the test over Single Test First Time Second Ear Press and release the handswitch button as soon as you hear a tone even if the tone is very soft Single Test Second Time Second Ear Press and release the handswitch button as soon as you hear a tone even if the tone is very soft Response Start the test over Group Test First Time First Ear Sit quietly and I will retest you when the group finishes Press and release the handswitch button as soon as you hear a tone even if the tone is very soft Response Start the test over Group Test Second Time Second Ear Sit quietly and I will retest you when the group finishes Press and release the handswitch button as soon as you hear a tone even if the tone is very soft Response Start the test over Error E4 No release of handswitch button Instructions You are not releasing the handswitch quickly enough Remember to press and release the handswitch quickly as soon as you hear the tone Error E5 Responding when no tone is present Instructions You are pushing the handswitch when no tone is present Be sure you hear the tone and press and release your handswitch quickly Error E6 No validation on one or two frequencies Instructions None Response Switch to manual mode and administer a manual test at the missed frequencies Error E7
29. ively click on the text box to open the Select a Subject dialog box so that you can select a previously entered subject by Last Name First Name or Social Security Number To be a valid entry the subject SSN must already be in the database Choose OK when you have completed your entry The Enter SSN for Station dialog box also includes a section which allows you to enter the purpose of the exam The following Purpose of Exam selection option buttons are offered 16 Tremetrics RA650 Operations Manual Annual option button To complete an annual hearing test Reference Baseline To complete a hearing baseline test in which future hearing tests will option button be compared Follow Up No 1 slat aaus SN Up No To complete a hearing test as a follow up to a previous incident or test option button Follow Up No 2 To complete a hearing test as a second follow up to a previous incident option button or test 90 Day To complete a hearing test every 90 days Re established Baseline To complete a new hearing baseline test in which future hearing tests option button will be compared Termination option To complete a final hearing test upon the completion of an assignment button and subsequent termination of a position To complete a hearing test for a reason not covered by the other Other option button ERE f options in this list of option buttons Select the OK button to store the selected options and close the current O
30. l for this procedure 22 Tremetrics RA650 Operations Manual 4 Hardware and Software Installation Introduction This installation manual provides a qualified technician with sufficient information for the installation of both the hardware and the software components of the RA650 Microprocessor Group Audiometer If major problems are encountered it is recommended that the technician contact Customer Service at TREMETRICS giving complete and accurate details such as serial number date of purchase description of part and TREMETRICS part number The reader should refer to the illustrations of this manual to aid in the installation process 4 1 Hardware Installation The RA650 Group Audiometer System should be installed in a well lighted well ventilated area near the audiometric sound room The table space required for a 4 station installation is five feet by three feet The table space required for an 8 station installation is six feet by three feet The RA650 requires power connection to 90 264 VAC at 47 to 63 Hz with a 500 VA voltage ampere rating The power receptacle should be marked Hospital Grade or Hospital Only to comply with safety regulations Outside the continental United States usage must comply with European standards Hardware requirements for the RA650 Group Audiometer System are as follows Computer IBM compatible PC 486 or higher 8 MB RAM 340 MB hard drive 3 5 floppy drive EGA VGA monitor Ke
31. ms Retest as required Provide special additional testing as required Save test data Select Functions Save to save all data for the testing group Store data in Hears database Select Functions Print to save all data to the Hears Database 18 Tremetrics RA650 Operations Manual 2 7 Automatic Retest Procedure 2 7 1 Automatic Retest Criteria The RA650 Group Audiometer automatically performs a retest of the subject under the following circumstances if Check and Retest has been selected e Error EB A threshold change of 15 dB HTL or greater occurs at any frequency during testing relative to the reference e Error ED Any frequency has an HTL of 90 dB or greater e Error ED The HTL at 500 Hz is greater than 30 dB e Error EA There is an HTL difference of 40 dB or more between ears at the same frequency e Error EC There is a difference of 50 dB or greater for an adjacent frequency 2 8 Fault Code Instructions and Responses A fault code is an immediate warning including both an on screen visual and auditory signal The intensity of the auditory signal is controlled by the RA650 Group Audiometer A fault code is generated under the following conditions e Error El A listener response is not obtained for the first ear tested at 1000Hz e Error E2 There is no validation for the first test ear response at 1000 Hz This can occur if too much time has elapsed without achieving threshold validation e Error
32. peration check of the following three hardware components 1 2 RA650 Audiometer Chassis 1 3 RA650 Audiometer Control Module 1 4 RA650 Audiometer Module 1 1 Electro Acoustic Ear Oscar Oscar M is a portable Electro acoustic ear Oscar performs the daily biological check for audiometer quality assurance Oscar serves as a substitute subject with a known hearing threshold level When connected to the RA650 Group Audiometer station the unit automatically provides reference audiogram for comparison to the baseline established during installation and calibration The test data establishes a permanent running log verifying the audiometer s calibration To perform a biological check of a RA650 Group Audiometer station perform the following procedure 1 Turn the Oscar power switch to on position Confirm that the earphone to be tested has the same serial number as the audiometer module to be tested 3 Place the earphones in the proper coupler on either side of the Oscar making sure that they are firmly seated Confirm that the left blue ear of the earphones is matched with the Left Ear side of the Oscar Confirm that the right red ear of the earphones is matched with the Right Ear side of the Oscar 4 Substitute the handswitch cord from the Oscar for the handswitch of the station to be tested 5 Perform an Electro acoustic test on the selected station 6 Save the test for comparison to the baseline audiogram 7 When testing is complete
33. r your social security number in the Examiner SSN text box Choose OK to save your entry The new examiner s social security number is displayed in the Main window Enter subject s social security number and purpose of exam Left click the mouse button on 000 00 0000 to the right of the subject s assigned station number to open the Enter SSN for Station dialog box Enter the subject s social security number in the Station SSN text box The SSN must already be entered in the database and select the appropriate Purpose of Exam option button Repeat as required for other subjects Alternatively you can select the number from the database Left click the mouse button on the Station SSN text box to open the Select a Subject dialog box Scroll to the appropriate row and click to select the subject s Last Name First Name and Social Security Number Choose the Select button to save the selection and return to the Enter SSN for Station dialog box Choose OK to save entries and return to the Main window The new subject s social security number is displayed Repeat as required for other subjects at other stations Talk to test subjects Click the Talk over all button or select Functions Play and Start to provide instructions to all testing subjects Start hearing test Click the Start button to start all hearing tests Monitor test Monitor the progress of all tests Respond to problems Respond to error codes and proble
34. resumes all paused audiometer tests Alternatively you can use the Functions Start Resume command or the F2 key 2 4 2 Pause button This button temporarily stops the selected audiometry test s This command can be used if a problem occurs during the administration of one or more audiometry tests Alternatively you can use the Functions Pause command or the F6 key 2 4 3 Reset button This button clears all subject information and all audiometry test information so that you can start another group of subjects Alternatively you can use the Functions Reset command or the F8 key 2 4 4 Restart button This button resets audiometry test data for the selected test subjects but does not change subject information that has been previously entered Alternatively you can use the Functions Restart command or the F7 key 2 4 5 Talk Over All button This command allows you to talk over the microphone to all audiometry test subjects simultaneously Alternatively you can use the Functions Talk Over Group command or the Alt F5 key combination 2 4 6 Talk Over Each button This button allows you to talk over the microphone to a single audiometry test subject Alternatively you can use the Functions Talk Individual command or the F5 key 15 Tremetrics RA650 Operations Manual 2 5 Dialog Boxes The following dialog boxes are provided in the RA650 operating software 2 5 1 Calibrating Station dialog box 2 5 2 Calibra
35. s used to record the subject s current threshold which may be affected from day to day by noise exposure colds sinus infections or other problems Testing as referred to in this manual is the screening procedure used to establish thresholds hearing levels and is in no way trying to diagnose monitor or treat any medical problem disease or injury If a problem is suspected the subject should be referred to an audiologist or medical doctor for evaluation The audiograms obtained from this screening procedure provide a way for records to be maintained for the subject and for the company where the subject works in order that an audiologist or medical doctor may more fully evaluate and prevent major hearing problems To guarantee accuracy each audiometer must be re calibrated at least once each year and receive an exhaustive calibration every two years Daily biological tests through the use of an Electro Acoustic Ear for daily comparisons to acoustic ear baseline obtained at time of calibration and the operator listening to each frequency and verifying the attenuator operation ensures accuracy and purity of the audiometer tones WARRANTY TREMETRICS RA650 AUDIOMETER Introduction Hardware Operator Lull Electro conste Har Oscars e a 1227 SR AGO Auidiometer C Wassis a een aes 1 3 RA650 Audiometer Control Module i 2c 0 55 cs6sedessccesshscrssesnceessdeacsdenedensesessevessdedurdeedens 1 4 RA650 Audiometer Modules sensata arara a
36. sed the frequency of the tone changes Requests that the selected audiometer module station performs a RAM and ROM memory test If the system is operating correctly nothing is displayed If a problem is detected an E8 message is displayed for the station with the memory problem 13 Tremetrics RA650 Operations Manual 2 3 6 Help Menu The Help menu provides the following commands Key Opens RA650 Group Audiometer online Help at the Contents tab You can then use the contents index or find functions to find the topic s of interest Contents command Opens RA650 Group Audiometer online Help at the Find tab You can then use the find function to find topic s of interest by searching all online Help topics Search for Help On command On Main Window Opens a Help file that describes the main window functions and features Displays RA650 developed by Tremetrics Version number and copyright message How to Use Help Opens a Help file that describes how to use the Online Help provided with command your RA650 Group Audiometer System 14 Tremetrics RA650 Operations Manual 2 4 Control Buttons The following control buttons are provided in the RA650 operating software 2 4 1 Start Resume button 2 4 2 Pause button 2 4 3 Reset button 2 4 4 Restart button 2 4 5 Talk Over All button 2 4 6 Talk Over Each button 2 4 1 Start Resume button This button starts the audiometry test for all test subjects or
37. tion dialog box 2 5 3 Enter Examiners SSN dialog box 2 5 4 Enter SSN for Station dialog box 2 5 5 Select a Subject dialog box 2 5 1 Calibrating Station dialog box Refer to the RA650 Microprocessor Group Audiometer Service Manual 2 5 2 Calibration dialog box Refer to the RA650 Microprocessor Group Audiometer Service Manual 2 5 3 Enter Examiners SSN dialog box This dialog box allows you to enter the social security number of the current hearing test examiner into the database records The Enter Examiners SSN text box displays the social security of the current examiner To change the current social security number type the social security number using the format xxx xx xxxx into the text box Alternatively left click the button beside the SSN dialog box to select an Examiner from the Examiner database The Examiner must already be in the database to be selected in this way Choose OK when you have completed your entry 2 5 4 Enter SSN for Station dialog box This dialog box allows you to enter the social security number of the hearing test subject assigned to a specific testing station and to enter the purpose of the hearing test examination into the subjects records The Enter SSN for Station text box displays the social security of the subject assigned to the selected testing station To change the current social security number type the social security number using the format xxx xx xxxx into the text box Alternat
38. yboard Mouse Windows Office Professional An available communication port to communicate with the RA650 Printer A parallel printer is required to print reports 23 Tremetrics RA650 Operations Manual To install the RA650 hardware use the following procedure 1 Locate sound room jack panels Locate the exterior jack panels for each subject location If necessary label the jack panel with the provided labels Position RA650 components Locate the RA650 chassis s and computer near the sound room jack panel A 30 ft cable is provided for connecting the RA650 to the Sound Room Confirm module installation Verify that all modules are installed properly in the chassis s Connect audiometer modules to jack panel Connect each audiometry module to the corresponding sound room earphone and handswitch jack panel location RA650 Chassis Installation See Figure 4 which displays an RA650 Audiometer Chassis with installed controller and four audiometer modules Note that your installation may have from 1 to 8 audiometers The first chassis contains audiometers for up to 4 stations Stations 1 through 4 An optional second chassis contains audiometers for additional stations Stations 5 through 8 Also note that the station number is defined by the location of the audiometer in the RA650 chassis as shown in the figure 4 A A Ze A Z Vlas EARPHONE HANDSWITCH
39. z gt 30 dB command 11 controller 2 Left Ear Testing Display 5 Copy command 7 Main Window 4 Cut command 7 Manual command 6 8 Delete 8K command 10 Memory command 13 EA Error 11 Menu Commands 4 6 earphone 1 10 22 26 28 microphone 3 8 15 26 28 Earphone jack 3 Military Error Processing command 11 EB Error 11 multimedia 8 EC Error 11 Multimedia 11 ED Error 11 Offline 5 30 mm Tremetrics RA650 Operations Manual OK option button 17 Oscar 1 22 Other option button 17 password 22 Paste command 7 Pause button 8 15 Pause command 6 8 15 Paused 5 Play and Start command 8 Play Instructions on Error command 11 power connection 25 power switch 28 Print command 7 9 Print Setup command 7 9 Printer 23 Process Errors in Manual Mode command 12 Pulse or Continuous Tone Display 4 Pulsed Continuous command 10 Purpose of Exam 16 rack 24 25 26 27 28 Rack 2 3 Re established Baseline option button 17 Reference Baseline option button 17 Reference Following Exposure option button 17 Remote Verification command 13 Reset 5 Reset button 15 18 20 Reset command 6 8 15 Reset Error Count on Error Test command 12 Restart button 15 Restart command 6 8 15 31 Retrieve Status command 9 Right Ear First command 5 10 Right Ear Testing Display 5 RS232 Configuration command 12 Run Test command 13 Save Test command 8 Saved 5 Search for Help On command 14 Select a Subject dialog box 16 17 18 Set Lower HTL to 00 dB command 11 S
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