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Cochlear Emissions Analyzer User Manual Doc no. 7-26-5500/11 Part no. 7-26-550 0 4 5 9...
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Printed in Denmark by GN Otometrics A/S, Denmark All information, illustrations, and specifications in this manual are based on the latest product information available at the time of publication. GN Otometrics A/S reserves the right to make changes at any time with- out notice.
The CAPELLA Cochlear Emissions Analyzer is the most recent addi- tion to the comprehensive line of audio diagnostic instrumentation from GN Otometrics. Capella is a PC-based system which runs under Microsoft® Windows™, either together with the NOAH/PAX soft- ware platform, or as a self-contained program. In addition to the main unit containing the hardware, Capella consists of separate soft- ware modules, this documentation and accessories.
Although DPOAE's are somewhat more complex to elicit and analyze than TEOAE's, they may have greater clinical utility for some applications. Capella currently measures Spontaneous, Transient, and Distortion Product Otoacoustic Emissions, using synchronous time averaging (where applicable), correlation techniques and FFT frequency analy- GN Otometrics A/S...
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No electrodes are required. No discomfort to the patient. Sig- nal delivery and OAE response measurement are achieved using a small probe held in place by a soft, disposable eartip. Sensitivity to cochlear function Useful in the differential diagnosis of cochlear and retrococh- GN Otometrics A/S...
NOAH integrates client records, audiological data and the dedicated fitting modules from various hearing instrument manufacturers. Digitally programmable hearing instruments using different tech- nologies and different programming devices are available from a number of manufacturers. NOAH provides a common software GN Otometrics A/S...
System requirements Recommended IBM® or IBM compatible PC with the following: 32 MB RAM Microsoft Windows 95 or 98 Pentium processor VGA graphics adapter Mouse Color printer 1 free COM port PC noise level under 35 dB (A) GN Otometrics A/S...
Capella hardware platform - see next chap- ter. If not running NOAH, start Capella by double-clicking on the NOAH icon in the directory where you have installed Capella, or on the Win- dows desktop if you have made a short cut. GN Otometrics A/S...
Capella is marked with this symbol to indicate compli- ance with Type B requirements of EN 60601-1. This class of equipment is allowed in domestic estab- lishments when used under the jurisdiction of a health care professional. GN Otometrics A/S...
If the shipping carton is visibly damaged upon delivery, ask the car- rier's agent to be present when the instrument is unpacked. If the in- strument is damaged or fails to operate, please notify the carrier and your supplier immediately. Your supplier will arrange for the repair GN Otometrics A/S...
All products returned to GN Otometrics or its repre- sentatives must be shipped prepaid and insured, or you must assume the risk of loss or damage in transit.
8m Serial Interface Cable Service Manual 2.2.4 Installation Locate Capella in a well-ventilated room away from all liquids and sources of heat (see Section 3.1.8, ‘Operating Environment” on page 27 for detailed specifications of operating environment). Test- GN Otometrics A/S...
The probe, headset and parts are in constant contact with your pa- tients so care should be taken to ensure that they are kept clean. 2.3.1 Probe Proper treatment of the Capella combination probe is important. It contains delicate transducers, precisely calibrated to work with your GN Otometrics A/S...
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The probe cannot be dismantled - this is not necessary for cleaning if the care instructions are followed. Do not fit the probe by holding on to the cable as you could damage the pin connector by doing this. GN Otometrics A/S...
There are no special requirements for disposal of the rubber eartips, i.e. they may be discarded in any regular waste bin. 2.3.2.2 Portable use Capella is a fully portable system, but the optional carrying case is recommended for safe transportation. Before packing the system, GN Otometrics A/S...
When loose, extract the holder and change fuses - refer to the fuse specifications marked above the on/off switch. Warning! When replacing the fuses there is a risk of fire. For continued protec- GN Otometrics A/S...
L2x3 (7.2V, 3800mAh). Dispose of the battery pack by sending it to an authorized Ni- MH battery destruction facility. Do not attempt to disassemble the battery pack. Do not incinerate the battery pack, or expose to fire. GN Otometrics A/S...
Ni-MH batteries have a typical life (charge/drain cycles) of up to 800 cycles. If the battery is used an average of 30 minutes per cycle, you can expect a total life of 400 hours. If you use the battery 6 hours per GN Otometrics A/S...
PC. There is no warm-up time required. Figure 3 Communication between your PC and the Hardware Platform is in- dicated by the PC Com LED, which flashes green. If you attempt communication with Capella without powering it on, you will be ad- GN Otometrics A/S...
Calibration has been performed on the supplied probe. If you wish to use any other probe for testing with Capella, please contact your local supplier first. Calibration should be performed annually by suitably qualified per- sonnel, using the appropriate equipment. GN Otometrics A/S...
Other test parameters are selected from the computer using the keyboard or various function keys. The hardware platform has three LED displays indicating power on, battery status, and signal and response transmission (PC Com). GN Otometrics A/S...
30 - 80 dB p.e. SPL approx. -30 to 60 dB nHL Linear: Unipolar click. Pulse width 40, 80, 120 µsec. Stimulus Level Range 30 - 80 dB p.e. SPL approx. -30 to 60 dB nHL Level Accuracy ± 4 dB GN Otometrics A/S...
Elapsed time, no. of peaks, no. of sweeps in each buffer, noise, arti- fact rate, stimulus stability, signal quality, no. of accepted sweeps, no. of rejected sweeps, percentage of completed sweeps Graphic display: Pos. and neg. significance level as a function of time after stimulus GN Otometrics A/S...
Pop-up box displays pump position and status messages in real time Tympanogram characteristics Cartesian tymp. plot; current measured volume and static pressure displayed: in real time; calculated values for ECV, MEP, SC, Grad, TW; and tymp. Type (A, AD, AS, B, C, D, E) GN Otometrics A/S...
Operation in temperatures exceeding -20°C or +60°C may cause permanent damage. 3.1.9 Storage & Shipment Environment Temperature: -20°C to +60°C Relative Humidity: 30 - 90%, non-condensing Atmospheric Pressure: 600 - 1090 hPa 3.1.10 EMC Emission and Immunity: Complies with EN 60601-1-2 GN Otometrics A/S...
Click on the Ear icon to select the ear you wish to measure, or select Right or Left in the Ear menu. Mount a suitable eartip on the probe and insert it into the ear canal, obtaining a tight seal with the canal wall. GN Otometrics A/S...
Meas. No. box on the lower left to make a new measurement or to view other measurements made on the same ear during the session. Repeat the procedure beginning with Probe fit for measuring the other ear. GN Otometrics A/S...
(Setup menu) but this not generally recommended as it can affect the correlation coefficient substantially. If displayed, the gray hatched area is not included in the FFT analysis. The Scaling of the FFT display may also be altered and its GN Otometrics A/S...
(DPOAE) in the Mode menu and DP-Gram in the submenu. Select Parameters in the Setup menu to define the Level Difference between f and f , select either 2f (DP1) or (DP2) for analysis, and if required change Noise crite- ria, Stop criteria and Noise estimate. GN Otometrics A/S...
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Measurement status can be monitored by observing the Sweeps and Statistics boxes on the lower right part of the screen. The noise floor during the measurement is also indi- cated by the blue vertical bar to the right of the DP-Gram. GN Otometrics A/S...
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Meas. No. box on the lower left to make a new measurement or to view other measurements made on the same ear during the session. 13. Repeat the procedure beginning with Probe fit for measuring the other ear. GN Otometrics A/S...
Meas. No. box on the lower left to make a new measurement or to view other measurements made on the same ear during the session. 10. Repeat the procedure beginning with Probe fit for measuring the other ear. GN Otometrics A/S...
Meas. No. box on the lower left to make a new measurement (if Enable meas. no. increment has not been checked in Setup) or to view other measure- ments made on the same ear during the session. GN Otometrics A/S...
Click on the desired user setup file to select, and then on OK to exit. You can also delete an old user setup file by selecting it, and then Delete. You will be prompted to confirm the deletion. GN Otometrics A/S...
Parameters. If required, choose the Break condition for Probe fit, Echo- Screen and Tympanometry. Remember that each Auto sequence is for one ear at a time, i.e. to test both ears you must GN Otometrics A/S...
Repeat step 4 up to five times. Each successive measurement result will be assigned a session number and superimposed on the others on the graph. To display the corresponding meas- urement parameters and/or statistics, select Param. and/or GN Otometrics A/S...
(Show Description), bring it to the Top or Bottom, or Delete it from the page. The size of an image may be changed by clicking on an edge or a corner. When the setup is complete, click on Save Setup and assign a name to it. GN Otometrics A/S...
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User Manual CAPELLA Cochlear Emissions Analyzer GN Otometrics A/S...
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