Otometrics PDF master
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1. or repairs are carried out by the equipment man ufacturer or personnel authorized by the manufacturer e The electrical installation to which the equipment is connected complies with EN IEC requirements e The equipment is used in accordance with the instructions for use The manufacturer reserves the right to disclaim all responsibility for the operating safety reliability and performance of equipment serviced or repaired by other parties Otometrics AURICAL FreeFit 19 User Guide Warning notes This manual contains information and warnings which must be followed to ensure the safe performance of the devices and software covered by this manual Local government rules and regulations if applicable should also be followed at all times AN AURICAL FreeFit should only be charged using the type 1053 charger unit or the type 1081 AURICAL speaker unit from GN Otometrics A S i Unless you are charging FreeFit with the AURICAL Aud speaker unit which has a medically isolated power supply 10 unit do not attempt to use AURICAL FreeFit with clients while it is placed in the charger unit There are no user serviceable parts inside the cabinet of the device or charger For the sake of safety and in order not to void the warranty service and repair of electro medical equipment should be carried out only by the equipment manufacturer or by service personnel at authorized workshops In case of any defects make a detailed description o2. snapshot taken automatically after the selected Adaptation Interval when the Noise Reduction has taken effect To demonstrate the Noise Reduction feature 1 Programthe hearing instrument for the desired Noise Reduction setting Otometrics AURICAL FreeFit 15 User Guide 12 12 1 12 2 16 2 Configure the measurement buttons to demonstrate the conditions you prefer For each button select the time dif ference between the two measurements Curve 1 and Curve 2 3 Click a measurement button in the control panel The snapshot curves are displayed in the graph and the overall Noise Reduction is displayed in the curve legend 9 The Feature 2 Benefit view gives you the opportunity to see and show the gain difference in an easy to under stand graph The FreeStyle test screen is similar to the other PMM test screens but with numerous possibilities to customize protocols Service cleaning and maintenance Warning Under no circumstances disassemble FreeFit or the FreeFit charger Contact your supplier Parts inside FreeFit and the FreeFit charger must only be checked or serviced by authorized personnel Service For the sake of safety and in order not to void the warranty service and repair of electro medical equipment should be car ried out only by the equipment manufacturer or by service personnel at authorized workshops In case of any defects make a detailed description ofthe defect s and contact your supplier Do n
3. AURICAL FreeFit AURICAL FreeFit and the OTOsuite PMM Module User Guide Doc No 7 50 1220 EN 03 Part No 7 50 12200 EN e CE otometrics Copyright notice No part of this documentation or program may be reproduced stored in a retrieval system ortransmitted in anyform or by any means electronic mechanical photocopying recording or otherwise without the prior written consent of GN Otometrics A S Copyright 2014 GN Otometrics A S Published in Denmark by GN Otometrics A S Denmark All information illustrations and specifications in this manual are based on the latest productinformation available atthe time of publication GN Otometrics A Sreserves the rightto make changes at any time without notice Version release date 2014 02 20 Technicalsupport Please contact your supplier Otometrics AURICAL FreeFit Table of Contents T Device Descrip TON cicero el Ae De 2 INTEnde dius sacada is a dit ooo 3 Unpacking Freehand ala aisla be ue ss ek el O li o a ON 4 wlnstallation ta tE a ls Aes 5 Powering the device io 6 Switching FreeFit on or off ooo 7 Connecting FreeFit to PMM _ _ 2 2 eee ee eee eee eee eee cece cence SB SFRECFIE DIODES nso ere ean dio ee 9 Toolbaricons inPMM 2 occ eee ee eee ee eee eee 10 Performing probe microphone measurements _ eee eee eee 11 Demonstrating hearing instrument features 22 22 0 20 eee eee eee ee eee 12 S
4. Right button 6 Connect the left probe to the coupler in AURICAL HIT 7 Click the Measure Left button 8 Click OK 9 Remove the probe from AURICAL HIT and remove the RECD coupling from the tubing of the BTE coupler Then measure real ear response 1 Attach the probes to the FreeFit 2 Perform probe tube calibration 3 Connect the RECD coupling to the ear mold tubing or foam insert tip 12 Otometrics AURICAL FreeFit User Guide A Transducer tubing D Transducer tube port B RECD coupling E Probe tube C Ear mold or foam insert tip 4 Place the probe tubes in the client s ears together with the ear molds or foam insert tips see Fitting the probes on the client and inserting the probe tubes P 9 5 Select ear to measure 6 Inthe control panel click Ear Response or briefly press the power button on the FreeFit The measured ear response and the RECD are displayed in their respective graphs 10 2 Measuring Unaided Response In the Unaided screen measure without hearing instruments to determine the natural amplification of the ear canal 1 Insert probe tube 2 Select ear to measure 3 Select graph NR WN 4 Click the Unaided button on the Control Panel Otometrics AURICAL FreeFit 13 User Guide 10 3 10 4 14 Note In an unaided measurement we usually expect a peak on the measurement curve around the 3kHz frequency of about 10 20 dB SPL dB SPL REUR Right dB SPL REUR Le
5. clients while it is placed in the charger unit To switch on FreeFit Press and hold the power button on top of the device until the status indicator light turns on The status indicator will light for about 3 seconds and then go into periodic flashing To switch off FreeFit Press and hold the power button on top of the device until the status indicator light turns off A Power button 7 Connecting FreeFit to PMM When you use PMM for the first time run the configuration wizard to set up the connection between FreeFit and PMM After you have configured PMM for the first time if FreeFit is turned on when you open the Control Panel in PMM then FreeFit will connect to PMM automatically Otherwise you can connect FreeFit as follows 1 Switch on FreeFit 2 In PMM on the toolbar click Control Panel 3 Inthe control panel click Connect Otometrics AURICAL FreeFit 7 User Guide 8 1 8 2 FreeFit probes A de otometrics an 1 l l 1 ES T A Probe tube port E Probe tube B Marker ring F Transducer tube port RECD probe only C Ear cord G Probe housing D Tube guide The ear cord is used to hang the probe below the client s ear The probe tube is inserted into the ear canal for probe microphone measurements The probe tube has a black marker ring for marking how far into the ear canal the tube should be inserted The tube guide is used to stabilize the position of the p
6. dule to operate FreeFit FreeFit cannot be used without OTOsuite software Intended use Users audiologists hearing instrument dispensers ENTs speech therapists and other health care professionals Use to visualize the amplified signal recorded in the ear with reference information such as target curves to provide an objective basis for adjusting the hearing instrument settings Typographical conventions The use of Warning Caution and Note For safety reasons and appropriate use of the device and or software the manual contains Warnings Cautions and Notes These headings are used as follows Warning Indicates that there is risk of death or serious injury to the user or patient Otometrics AURICAL FreeFit User Guide Cautione Indicates that there is a risk of injury to the user or patient or risk of damage to data or the device Note Indicates that you should take special notice 3 Unpacking FreeFit 1 Unpack the device carefully When you unpack the device and accessories it is agood idea to keep the packing material in which they were delivered If you need to send the device in for service the original packing material will protect against damage dur ing transport etc 2 Visually inspect the equipment for possible damage If damage has occurred do not put the device into operation Contact your local distributor for assistance 3 Check with the packing list to make sure that you have received all necessary pa
7. ely or in one sequence 5 Comparethe measured aided response curve to the prescriptive target values dashed curve and the measured MPO curve to the UCL Consider adjusting the MPO Maximum Power Output if indicated by any report of loudness dis comfort 6 Adjust the hearing instrument with the fitting software to achieve the desired gain and repeat the measurements to evaluate the effects of the changes Unaided Response Occluded Response Aided Response Noise Reduction FreeStyle 35 50 65 30 35 50 65 80 E dB SPL REAR Right dB SPL REAR Left l 140 i Measure 130 120 110 100 90 80 70 60 50 40 30 20 125 250 500 1k 2k 4k 8k Hz 125 250 500 ik 2k 4k 8k Hz Legend Overlays Si 26 05 450 5009 681515 sera E su 27 05 45 0 50t6n s 1515 signal E E E BC E EA E E EEE BC A Sequence button D Target curve for MPO B Measurement buttons for different stimuli E Measurement curve for MPO C Curve legend for button 1 F Measurement curve and target curve for button 1 Demonstrating hearing instrument features Use the Noise Reduction screen to evaluate and demonstrate the hearing instrument s noise reduction feature Each Noise Reduction test isan automatic sequence that contains two curves with a delay between the two curves e Curve 1 a snapshot taken immediately before Noise Reduction takes effect e Curve 2 a
8. erence by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet ona circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help For use in Canada To prevent radio interference to the licensed service this device is intended to be operated indoors and away from windows to provide maximum shielding Equipment or its transmit antenna that is installed outdoors is subject to licensing No parts may be eaten burnt or in any way used for purposes other than the applications defined in the Intended Use section of this manual The device and charger unit can be disposed of as normal electronic waste according to local regulations Please investigate local regulations concerning the disposal of rechargeable and alkaline batteries For safety reasons accessories connected to the equipment s outlet fittings must be identical to the type supplied with the system Otometrics AURICAL FreeFit 19 User Guide 11 It is recommended that an annual calibration be performed on accessories containing transducers Furthermore it is recommended that calibration be performed if the equipment has suffered any potential damage e g headphones dropped on the floor 12 To comply with EN 60601 1 1 computer and printer must be placed out of reac
9. ervice cleaning and maintenance __ 2 22 2 ee eee eee eee eee eee eee 13 Other references uvsaio 2 2 jones picada ads an 1A Standards cas ass rad eee cae eee 15 POWer adaptor isa di A A EE 16 Operating environment 2222240000000000 eee eee ee cece eee eee eeeee 17 Storage and handling ii oe se eh Oa se Oa a ee eee Nes Guth ao Bae 18 Manufacturer iia is doc is 19 Warningnotes A A loin A AN 20 Notes on EMC Electromagnetic Compatibility 000000 2 2 21 Definition OF symbols so o e a de de e a Otometrics AURICAL FreeFit 10 11 15 16 17 17 17 18 18 18 19 20 23 User Guide User Guide 2 1 Device Description FreeFit is used for measuring the sound pressure level close to the client s eardrum as well as outside the ear by the pinna for both ears simultaneously AURICAL FreeFit should only be charged using the type 1053 charger unit or the type 1081 AURICAL speaker unit from GN Otometrics A S Type 1053 charger unit AURICAL speaker unit with charger Note This manual describes the assembly and use of the type 1053 charger unit If you use the AURICAL speaker unit to charge your FreeFit see the manual for AURICAL Aud Note For information about the Counseling and Simulations software see the manual for AURICAL Visible Speech and the Counseling and Simulations Module You use the OTOsuite PMM module and the Counseling and Simulations mo
10. f the defect s and contact your supplier Do not use adefective device Keep the unit away from liquids Do not allow moisture inside the unit Do not use the instrument in the presence of flammable anesthetics gases Unwanted noise may occur if the instrument is exposed to a strong radio field Such noise may interfere with the pro cess of recording an accurate audiogram and fitting a hearing instrument Many types of electrical devices e g mobile telephones may generate radio fields We recommend that the use of such devices in the vicinity of this instrument be restricted as much as possible Changes or modifications not expressly approved by the manufacturer could void the user s authority to operate the equipment This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guar antee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interf
11. fied below The user of AURICAL FreeFit should ensure that it is used in such an environment Immunity test IEC 60601 Compliance level Electromagnetic environment guidance test level Radiated RF 3V m Portableand mobile RF communications equip IEC 61000 4 3 80 MHz to 2 5 GHz ment should be used no closer to any part of AURICAL FreeFit including cables than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter Recommended separation distance d 12 VP for 80 MHz to 800 MHz d 23 VP for 80 MHz to 2 5 GHz where Pis the maximum output power rating of the transmitter in watts W accordingto the transmitter manufacturer and d is the recom mended separation distance in metres m Field strengthsfrom fixed RF transmitters as determined by an electro magnetic site survey should be less than the compliance level in each frequency range Interference may occur in the vicinity of equip ment marked with this symbol gt Note 1 At 80 MHzand 800 MHz the separation distancefor the higher frequency range applies Note 2 These guidelines may not apply in all situations Electromagnetic propagation is affected by absorption and reflection from structures objects and people a Field strengths from fixed transmitters such as base stations for radio cellular cordless telephones and land mobile radios amateur radio AM and FM radio broadcast and TV broadcas
12. ft A UCL C Peak around 3 kHz B Audiogram D Measurement curve Measuring Occluded Response Inthe Occluded Response screen measure with muted hearing instruments in ears to measure the occlusion or openness ofthe fitting 1 Place the hearing instrument on the ear of the patient with the probe tube inserted in the ear canal Ensure the hear ing instrument is muted or turned off 2 Click the Occluded button on the Control Panel When you compare the REUR to the REOR you can see the impact of the occlusion of the ear canal Measuring Aided Response In the Aided screen measure the gain that the hearing instruments are providing in relation to aspecified prescriptive fit ting target 1 Place the hearing instrument on the ear of the patient with the probe tube inserted in the ear canal Note For Coupler based fitting select the Coupler based fitting icon on the toolbar and attach the hearing instrument to the coupler in the AURICAL HIT see the manual for AURICAL HIT Otometrics AURICAL FreeFit 11 User Guide 2 Switch the hearing aid on without moving it All the hearing instrument features should be left on with the general use program selected 3 Configure the control panel to play up to 5 signals For example 3 input levels for a speech or speech like stimulus Soft 50 55 dB SPL Average 65 dB SPL and Loud 80 dB SPL plus an MPO stimulus 4 Present the various input levels and MPO signal separat
13. h of the client i e not closer than approx 1 5 meters 5 ft 13 Inthe United States of America Federal law restricts this device to sale by or on the order of alicensed physician 14 It is recommended to install the unit in an environment that minimizes the amount of static electricity For example anti static carpeting is recommended 15 The charger unit should be kept away from the client area 20 Notes on EMC Electromagnetic Compatibility e AURICAL FreeFit is part of a medical electrical system and is thus subject to special safety precautions For this reason the installation and operating instructions provided in this document should be followed closely e Portable and mobile high frequency communication devices such as mobile phones may interfere with the func tioning of AURICAL FreeFit Guidanceand manufacturer s declaration electromagnetic emissions for all equipment and systems AURICAL FreeFit is intended for use in the electromagnetic environment specified below The user of AURICAL FreeFit should ensure that it is used in such an environment Emissonstet Compliance Electromagnetic environment guidance RF emissions Group 1 AURICAL FreeFit uses RF energy only for its internalfunction Therefore its RF emissionsare CISPR 11 very lowand arenot likely to cause any interferencein nearby electronic equipment RF emissions Class B AURICAL FreeFit is suitable for use in all environments including domestic environ
14. imated using the equa tion applicableto the frequency of the transmitter where Pis the maximum output power rating of the transmitter in watts W according to the transmitter manufacturer Note 1 At 80 MHzand 800 MHz the separation distancefor the higher frequency range applies Note 2 These guidelines may not apply in all situations Electromagnetic propagation is affected by absorption and reflection from structures objects and people 21 Definition of symbols Electronic equipment covered by the Directive 2002 96 EC on waste electrical and electronic equipment WEEE All electrical and electronic products batteries and accumulators must be taken to separate collection at the end of their working life This requirement applies in the European Union Do not dispose of these products as unsorted municipal waste You can return your device and accessories to Otometrics orto any Otometrics supplier You can also con tact your local authorities for advice on disposal Identifies the correct position of the battery inside the battery compartment Interference may occur in the vicinity of the device Local regulations and precautions for other equip ment in the environment should always be followed to avoid interference The separation distance from this device to other devices complying with standard immunity requirements in IEC 60601 1 2 is minimum 0 35 m 1ft Otometrics AURICAL FreeFit 23 User Guide 24 Suitab
15. le for direct current only In France it is only permitted to use the device indoors Consult user manual for warnings and cautions Follow instructions for use Consult instructions for use Complies with Type BF requirements of IEC60601 1 Complies with Medical Devices Directive 93 42 EEC Complies with the Radio Equipment and Telecommunications Terminal Equipment Directive 1999 5 EC The installation must be carried out in accordance with Medical Electrical Systems clause 16 in IEC 60601 1 3rd AAMI ES60601 1 and CSA C22 2 NO 60601 1 08 CAN CSA The supplementary provisions on the reliability of electromedical systems It is ageneral rule for all electrical equipment used in the proximity of the client that e The connected equipment must comply with IEC 60601 1 3rd This device complies with part 15 of the FCC rules Operation is subject to the following two conditions e This device must not cause harmful interference e This device must accept any interference received including interference that may cause undesired operation The term IC before the certification registration number signifies that the Industry Canada technical spe cifications were met Do not reuse Used in error message dialogs if software program fails See the detailed information in the dialog box Manufacturer and date of manufacture Otometrics AURICAL FreeFit
16. ments and CISPR 11 those directly connected to the public low voltage power supply network that supplies buildingsused for domestic purposes Harmonic emissions IEC 61000 3 2 Not applicable Voltagefluctuations flicker emissionsIEC Not applicable 20 Otometrics AURICAL FreeFit User Guide Guidanceand manufacturer s declaration electromagnetic immunity for all equipment and systems AURICAL FreeFit is intended for use in the electromagnetic environment specified below The user of AURICAL FreeFit should ensure that it is used in such an environment Immunity test IEC 60601 Compliance level test level Electrostatic 6 kV contact 6 kV contact discharge ESD 8 kV air 8 kV air IEC 61000 4 2 Power frequency 50 60 Hz magnetic field IEC 61000 4 8 Note U is the AC mains voltage priorto application of the test level Otometrics AURICAL FreeFit Electromagnetic environment guidance Floors should bewood concrete or ceramic tile If floors are covered with syn thetic material the relative humidity should be at least 30 Power frequency magnetic fields should be at levels characteristic of a typical loc ation in a typical commercial or hospital environment 21 User Guide 22 Guidanceand manufacturer s declaration electromagnetic immunity for equipmentand systems that are NOT life supporting AURICAL FreeFit is intended for use in the electromagnetic environment speci
17. ot use a defective device Cleaning Use a soft slightly damp cloth with asmall amount of mild detergent or approved non caustic medical grade disinfectant wipes to clean the unit and charger according to local infection control regulations Cautione Keep the unit away from liquids Do not allow moisture inside the unit Cautione Never immerse the FreeFit probes into water or other cleaning solutions Cautions No part of FreeFit or its accessories is suitable for autoclaving or thermal disinfection sterilization methods Probe tubes tube guides and ear cords These parts are in constant contact with your clients e Probe tubes The only part which is inserted into the ear canal during PMM testing is the Probe tube These tubes are disposable and should only be used once per client e Tube guides and ear cords Use a soft slightly damp cloth with asmall amount of detergent to clean the cords and the tube guides Otometrics AURICAL FreeFit User Guide Disposal There are no special requirements regarding the disposal of the silicone test tubes i e they can be discarded according to local regulations 12 3 Maintenance Annual calibration FreeFit and the FreeFit probes must be calibrated once a year by your authorized service department 13 Other references For more information see the online Help in OTOsuite which contains detailed reference information about FreeFit and PMM and other OTOsuite products For instruc
18. robe tube Before you make RECD measurements you fit a transducer tube on the transducer tube port Fitting probe tubes on the probes A bag of silicone probe tubes is supplied together with FreeFit To fit a probe tube on the probe Fit a probe tube to the probe tube port thin metal tube at the top of the probe housing Gently push and twist the probe tube down as far as possible over the port Calibrating the probe tubes Note e To prevent cross infection use new probe tubes for each client 1 Fita new probe tube on the probe 2 Insert the free end of the probe tube in the test location on the probe Otometrics AURICAL FreeFit User Guide Se otometrics A Probe tube B Test location for probe tube calibration 3 Make sure that FreeFit is connected to PMM 4 Press the power button briefly on FreeFit The Probe Tube Calibration dialog box appears and the calibration starts automatically Alternatively launch the wizard with the toolbar icon In RECD pressing the power button starts an ear measurement 5 Ifthe tube calibration fails check whether the tubes are blocked pinched or clogged and try to eliminate sources of ambient noise 8 3 Fitting the probes on the client and inserting the probe tubes It is important that the probe tube for every measurement is inserted correctly and consistently in the ear of the client 1 Place the black marker ring at the recommended distance from the
19. rts and accessories If your package is incomplete contact your local distributor 4 Installation N i A S lt SS amp a ae A gt g a Mounting the NOAHLink charger on the Installation for desk top use Wall mount installation FreeFit charger base plate Otometrics AURICAL FreeFit 5 User Guide 5 Powering the device Caution Use only the following battery types Rechargeable Ni MH type AA R6 1 2V 1 pc Use only rechargeable batteries supplied by GN Otometrics A S Alkaline AA R6 1 2V 1 pc A Press to open 5 1 Recharging the battery using the charger stand Warning If you are using an alkaline battery do not attempt to charge your AURICAL FreeFit Your alkaline battery may be damaged and leak and this may in turn cause damage to FreeFit Place FreeFit in the charger unit only if FreeFit contains a rechargeable battery Batteries should be removed if equipment is not likely to be used for some time Caution To power the charger you must use an IEC UL 60601 01 certified power adaptor supplying 9 V DC min 300 mA and with a maximum available output of 15 W The adapter supplied with the unit meets these spe cifications Otometrics AURICAL FreeFit User Guide 6 Switching FreeFit on or off Warning Unless you are charging FreeFit with the AURICAL Aud speaker unit which has a medically isolated power supply unit do not attempt to use AURICAL FreeFit with
20. t cannot be predicted theoretically with accuracy To assess the electromagnetic environment due to fixed RF transmitters an electromagnetic site survey should be considered If the measured field strength in the location in which AURICAL FreeFit is used exceeds the applicable RF compliance level above the AURICAL FreeFit should be observed to verify normal operation If abnormal performance is observed additional measures might be necessary such as reorienting or relocating AURICAL Free Fit b Overthe frequency range 150 kHz to 80 MHz field strengths should be less than 3 V m Otometrics AURICAL FreeFit User Guide Recommended separation distances between portable and mobile RF communications equipment and AURICAL FreeFit The AURICAL FreeFitis intended for usein an electromagnetic environment in which radiated RF disturbances are controlled The customer or the user of the AURICAL FreeFit can help prevent electromagnetic interference by maintaining a minimum distance between portableand mobile RF communications equip ment transmitters and the AURICAL FreeFitasrecommended below according to the maximum output power of the communications equipment Rated maximum output power of trans Separation distance according to frequency of transmitter mitter m 80 MHz to 800 MHz 800 MHzto 2 5 GHz d 12WP d 23WP For transmitters rated at a maximum output power not listed above the recommended separation distance d in metres m can be est
21. tions on installing OTOsuite see the OTOsuite Installation Guide which you can find on the OTOsuite install ation medium disk or memory stick 14 Standards Safety IEC 60601 1 UL 60601 1 CAN CSA C22 2 NO 601 1 90 AURICAL FreeFit IEC 60601 1 Internally Powered Type BF IPXO EMC IEC 60601 1 2 EN 300 328 2 EN 301 489 17 15 Power adaptor BRIDGEPOWER CORP Output 9 VDC 1 10A MENB1010A0903B01 Input 100 240 V 50 60 Hz DONGGUAN SHILONG FUHUA ELECTRONIC CO LTD Output 9 VDC 0 56 A UEO8WCP 090056SPA Input 100 240 V 50 60 Hz Use only the power adaptor supplied with the instrument Otometrics AURICAL FreeFit 17 User Guide 16 17 18 18 1 18 Operating environment Temperature 15 C to 35 C 59 F to 95 F Relative humidity 30 to 90 non condensing Warm up time lt 1 min Air pressure 600 hPato 1060 hPa Operation at temperatures below 20 C or above 60 C may cause permanent damage Storage and handling Temperature 20 C to 60 C 4 F to 140 F Rel humidity lt 90 non condensing Air pressure 500 hPato 1060 hPa Manufacturer GN Otometrics A S 9 Hoerskaetten DK 2630 Taastrup Denmark g 4545 7555 55 45 45 7555 59 www otometrics com Responsibility of the manufacturer The manufacturer is to be considered responsible for effects on safety reliability and performance of the equipment only if e All assembly operations extensions re adjustments modifications
22. tip of the probe tube Recommended distances are men 27mm women 27mm children 20 25 mm In the case of children otoscopy is especially recommended to prevent contact with the eardrum 2 Place the ear cords with the probes over the ears of the client Adjust the length of the ear cords if required Otometrics AURICAL FreeFit 9 User Guide 3 Becareful Carefully insert the probe tube into the ear canal until the black marker ring reaches the intertragal notch 9 Toolbar icons in PMM The icons available in the toolbar depend on the test function that you have selected Toolbar icons in PMM Select device A Toggle between Response Gain REIG and Predicted Aided Audiogram PAA views Ey A Select view HA SPL l HL Hearing Level or SPL Sound Pressure Level nman Select audiogram view Left both or right CN Open Fitting Details dialog Note You must select the Use OpenREM calibration option if you are fitting an open ear instrument Open Listen at the Eardrum Listen in the Coupler window to record the signal at the eardrum or in the coupler or monitor the signal through your headphones Show hide Curve Legend and Overlays box 10 Otometrics AURICAL FreeFit 10 10 1 Toolbaricons in PMM Switch to Feature 2 Benefit view FreeStyle only Launch probe tube calibration wizard Toggle between standard calibration and OpenREM calibration Select previously measured RECD val
23. ues Toggle between coupler fitting mode and Real Ear fitting mode User Guide Show Hide OnTarget view which displays the difference between the target curve and the measured curve Switch to On Top mode Performing probe microphone measurements When you start a new session in PMM you must ensure the fitting parameters are set correctly in the Fitting Details dia log box To set the fitting parameters 1 PressF10to open the Fitting Details dialog box 2 Select the appropriate target rule 3 Fill in the remaining fields in the dialog box Making Probe Microphone Measurements The following sections describe the main procedures involved in PMM Measuring RECD 11 Measuring Unaided Response 13 Measuring Occluded Response 14 Measuring Aided Response gt 14 Measuring RECD If you want to use measured RECD values for coupler based fitting you can measure RECD in PMM as follows Otometrics AURICAL FreeFit 11 User Guide Measure coupler response Skip this procedure ifyou have a stored coupler measurement 1 Open the RECD tab in PMM 2 Indicate the type of coupler adapter you are using and whether you are using an ear mold or foam insert tip 3 Click Coupler Response in the RECD Control Panel 4 Attach the right RECD ear probe to the coupler in AURICAL HIT A RECD coupling D Transducer tubing B BTE adapter tube E Transducer tube port C BTE HA2 adapter 5 Click the Measure
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