Related Manuals for natus Otometrics Aurical HIT
Summary of Contents for natus Otometrics Aurical HIT
- Page 1 AURICAL HIT and the OTOsuite HIT Module User Guide Doc. No. 7-50-1230-EN/06 Part No. 7-50-12300-EN...
- Page 2 Copyright notice © 2012, 2019 Natus Medical Denmark ApS. All rights reserved. ® Otometrics, the Otometrics Icon, AURICAL, MADSEN, HI-PRO 2, Otoscan, ICS and HORTMANN are registered trademarks of Natus Medical Denmark ApS in the U.S.A. and/or other countries. Version release date 2019-09-18 (214854) Technical support Please contact your supplier.
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Page 3: Table Of Contents
Table of Contents Introduction Unpacking Installation The test chamber Testing hearing instruments Maintenance and Calibration Other references Technical specifications Definition of symbols 10 Warning notes 11 Manufacturer Otometrics - AURICAL HIT... -
Page 4: Introduction
1 Introduction Introduction AURICAL HIT is designed for Hearing Instrument Testing and Coupler-Based Fitting. AURICAL HIT connects via USB to a computer running the OTOsuite software. • With the OTOsuite HIT Module you can perform traditional hearing instru- ment testing according to either the ANSI or IEC test protocols, and obtain a consistent picture of every hearing instrument, regardless of manufacturer or type. -
Page 5: Unpacking
2 Unpacking Unpacking 1. Unpack the device carefully. When you unpack the device and accessories, it is a good 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. - Page 6 4 The test chamber The coupler assembly ► Elevation plate ► Cable groove ► ► The AURICAL HIT handle (some models only) The coupler assembly The coupler assembly consists of the following parts: A. Coupler adapter B. Coupler cavity C. Coupler microphone Otometrics - AURICAL HIT...
- Page 7 4 The test chamber Coupler adapter The Accessory Box provides a range of adapters for easy positioning of different types of hearing instruments. Coupler cavity During tests in the test chamber, the hearing instrument is connected to a 2cc coupler cavity manufactured in accordance with the ANSI standard.
- Page 8 4 The test chamber Cable groove Wrap the programming cable of the hearing instrument once around the cable groove. This prevents the hearing instrument from being pulled out of place when you close the lid for testing. Elevation plate Use the elevation plate to facilitate positioning of wireless transmitters and body worn hearing instruments at a level where the microphone or microphones are approximately centered in relation to the loudspeaker.
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Page 9: Testing Hearing Instruments
5 Testing hearing instruments Testing hearing instruments Testing a hearing instrument involves the following main tasks: Calibrating the reference microphone Otometrics recommends that you calibrate the reference microphone daily or weekly. Set up the interval to suit your pur- ► poses. - Page 10 5 Testing hearing instruments 3. Position the reference microphone (1) pointing straight down from above and centered 1-2 millimeters above the coupler meas- urement microphone (3). 4. During calibration the microphones must have the exact same dis- tance to the main loudspeaker (2), along the Z axis. You can ensure this by looking at the test chamber from the side when you adjust the reference microphone position for calibration.
- Page 11 5 Testing hearing instruments With AURICAL HIT you receive a set of color-coded battery simulators, which are used to power the hearing instru- ment. They are also used as probes for measuring the power consumption. Color code Size ANSI PR63 7012ZD Yellow PR70 7005ZD...
- Page 12 5 Testing hearing instruments Traditional BTE hearing instruments This procedure applies to any type of standard BTE hearing instruments with traditional earmolds. Using the HA-2 adapter and BTE adapter tube Otometrics - AURICAL HIT...
- Page 13 5 Testing hearing instruments Thin-tube hearing instruments This type of procedure applies to any type of thin-tube hearing instruments, including instruments with the Receiver In the Ear (RIE)/Receiver In the Canal (RIC), and pre-bent tubing. Using the HA-1 ITE adapter Note If you place some acoustic putty on the receiver wire this will shift its resonance frequency.
- Page 14 5 Testing hearing instruments ITE hearing instruments This procedure applies to any type of custom hearing instruments, including ITE (In The Ear), ITC (In The Canal), CIC (Com- pletely In the Canal). Using the HA-1 ITE adapter Telecoil testing 1. Position the hearing instrument in AURICAL HIT as described in Traditional BTE hearing instruments ►...
- Page 15 5 Testing hearing instruments • For a detailed description of traditional FM testing, see the AURICAL HIT Reference Manual. 5.10 How to perform a standard test The procedure 1. Launch the fitting software for the hearing instrument so that you can control its parameters. Navigation 2.
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Page 16: Maintenance And Calibration
6 Maintenance and Calibration 5.11 How to test the directional microphone Directionality measurements as described in the hearing instrument test standards cannot be performed with regular desk- top test chambers such as AURICAL HIT. Such measurements require large anechoic chambers. Small test chambers always exhibit acoustic reflections that obscure the true directional behavior of the hearing instrument. -
Page 17: Other References
For OTOsuite installation instructions, see the OTOsuite Installation Guide, on the OTOsuite installation medium. See also: • AURICAL FreeFit and the Probe Microphone Measurements Module Reference Manual (English only) Technical specifications Type identification AURICAL HIT is type 1082 from Natus Medical Denmark ApS. Acoustic stimulus generation In closed test chamber Otometrics - AURICAL HIT... - Page 18 8 Technical specifications Frequency response, re. 1 kHz, main loud- 125 to 200 Hz: ± 3.0 dB speaker (equalized) 200 to 2000 Hz: ± 1.5 dB 2000 to 5000 Hz: ± 2.5 dB 5000 to 10000 Hz: ± 3.0 dB Frequency response, re.
- Page 19 8 Technical specifications Transport and storage Temperature: -15ºC to +55ºC (5ºF to 131ºF) Air humidity: 10% to 90%, non-condensing Operating environment Operating environment Indoors Operating temperature range 15 to 35 ºC (59 to 95 ºF) Maximum relative humidity Maximum relative humidity 80% for temperatures up to 31ºC (88 ºF) decreas- ing linearly to 50% relative humidity at 40ºC (104 ºF).
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Page 20: Definition Of Symbols
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 Natus Medical Denmark ApS, or to any Natus Medical Denmark ApS supplier. You can also contact your local authorities for advice on disposal. -
Page 21: Warning Notes
10 Warning notes Warning notes Warning For warning notes applying to AURICAL HIT when in use with AURICAL FreeFit, see the warning notes in • the AURICALFreeFit Safety section in the AURICALFreeFit documentation. 1. The device is intended for testing purposes by audiologists, hearing instrument dispensers, and other health care pro- fessionals in testing programmable hearing instruments. -
Page 22: Manufacturer
(e.g. PC and/or printer) may lead to a reduction in the overall safety level of the system. The equipment must com- ply with IEC 60950. Manufacturer Natus Medical Denmark ApS Hoerskaetten 9, 2630 Taastrup Denmark +45 45 75 55 55 www.natus.com...