Welch Allyn REF 29400 - Manuals

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 6 L1 - level or intensity of F1; the lower of the stimulus frequencies expressed in dB SPL. L2 - level or intensity of F2; the higher of the stimulus frequencies expressed in dB SPL. NF - noise floor; refers to the average amplitude of...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 7 Chapter 2: Welch Allyn OAE Hearing Screener Components and Hardware Setup Cable Connections The cable connections to the W elch Allyn OAE Hearing Screener box are described in the figure and the instructions below. Welch Allyn OAE He...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 8 Probe part #29402 is compatible only with Welch Allyn OAE Hearing Screener (blue) hardware 29400/29401. Charger Unit Assembly The charger unit is not required for normal operation. The unit is attached to the W elch Allyn OAE Hearing...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 10 Chapter 3: Environment and Patient Preparation There is minimal patient preparation required for an OAE test. Since the test measures a physiologic event, no behavioral response is required from the patient. Therefore, OAEs can be r...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 11 Patient Instructions For patients who can understand instructions, the following information will help prepare them for the test. Inform them that: 1. You will insert the ear tip into the ear canal. 2. He/She will hear a series of s...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 12 Chapter 4: Care and Maintenance of the Probe

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 14 Chapter 5: Quick Guides and Instructional Videos This section of the document presents Quick Guides, step-by step test procedures and other useful information. The Quick Guides: • List the steps required for performing an OAE test a...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 17 Quick Guide: Causes of ‘Refer” r Welch Allyn OAE Hearing Screener Troubleshooting Quick Guide: Causes of Refer Results Noise Problem Possible solutions ♦ Noisy surroundings — Other people in or near test site. — Devices such as fans...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 18 Obstructions Problem Possible solutions ♦ Cerumen, vernix, or other debris — In the ear — On the probe tip — On the probe ♦ IN THE EAR: — Make sure that a properly trained technician examines the ear canal for obstructions BEFORE in...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 20 Welch Allyn OAE Hearing Screener Clinical Competency Evaluation Purpose: This evaluation certifies that _________________ has met Welch Allyn’s requirements for utilizing the OAE Hearing Screener. The training involved hands-on exer...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 21 PEDIATRIC HEARING SCREENING RESULTS Date of Exam:________________________ Patient’s Name:________________________ Date of Birth:________________________ This patient's hearing was screened using otoacoustic emissions. The patient pa...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 22 PEDIATRIC HEARING SCREENING RESULTS Date of Exam:________________________ Patient’s Name:________________________ Date of Birth:________________________ This patient's hearing was screened using otoacoustic emissions. The patient re...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 23 Chapter 7: System Operation The front label of the W elch Allyn OAE Hearing Screener incorporates five buttons that the user presses to turn on or reset the box and move through the possible program operations. Refer to the figure a...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 24 The UP and DOW N arrow buttons move through the list of program choices and data files. Press the UP or DOW N arrow keys until the desired program function appears in the LCD. Then press the DX SELECT button. Program Flow Chart In t...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 25 Chapter 8: Distortion Product Otoacoustic Emissions Performing a DPOAE Test This flow chart begins at the point where the Power ON flow chart ended. The steps shown here are specific for performing the pre-programmed DPOAE test proc...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 26 After 10 tests have been performed, the next test (test 11) will overwrite the first test. This proceeds in a continuous loop so that only the last 10 tests performed are saved and accessible in memory. Once overwritten, a test cann...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 28 Printing DPOAE Test Details Immediately After a Test The W elch Allyn OAE Hearing Screener with the serial label printer prints out a 2” x 4” self-adhesive label showing the test details immediately after it is performed or to print...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 29 Viewing Previously Collected DPOAE Data This flow chart begins at the point where the PERFORM DPOAE message is displayed and shows the program flow for instances in which you wish to view data that is saved in memory. Recall that on...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 33 Label Feed Button On Button Chapter 11: Printer See Chapters 8, 9 and 10 for instructions about how to print out tests from the W elch Allyn OAE Hearing Screener. The W elch Allyn OAE Hearing Screener 29400/29401 (blue label) is onl...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 34 Ordering Labels To order labels call W elch Allyn at 1-800-535-6663.

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 35 Chapter 12: System Default Protocol The W elch Allyn OAE Hearing Screener comes pre-programmed with a DPOAE default screening protocol. The system default protocol is: DPOAE System Default Protocol Collection Parameters, Stopping Pa...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 36 DPOAE Measurement-Based Stopping Rules per Test The system default DPOAE protocol stops the test when the conditions for an overall test Pass or Refer occur. For example, if the first 3 frequencies “Pass”, then the final frequency w...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 37 Chapter 13: Reloading WA OAE Firmware (WA OAE Load software) The W elch Allyn OAE Hearing Screener runs on firmware that resides on a memory chip inside the unit. Each W elch Allyn OAE Hearing Screener comes with this firmware pre-i...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 38 • If your PC does not support the automatic running of the installation software on the CD you will need to browse to the CD drive using W indows Explorer and open the file named “install.exe” to view this screen. 5. Select the Inst...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 39 8. Exit the application when the W A OAE Firmware download is complete. Note: If you need assistance installing the WA OAE Load software on your PC or downloading WA OAE Firmware, please contact Welch Allyn Technical Support at 1-80...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 40 Chapter 14: Exporting using ASCII Link ASCII Link is a utility program that lets you download data from the W elch Allyn OAE Hearing Screener unit's memory to a PC and convert it to an ASCII file. This tool lets you save W elch Ally...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 41 Chapter 15: Troubleshooting, Service and Warranty Error messages usually appear on the LCD when the system is unable to perform a desired function. This section lists some of the more common error messages and possible solutions. Er...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 42 This message appears when one of the buttons on the W elch Allyn OAE Hearing Screener label is depressed for more than .3 sec. Releasing the button returns the system to normal operation. If depressed during data collection the arti...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 43 Service Caution Unauthorized repairs will void the warranty. A W elch Allyn Service Center must perform all repairs on products under warranty. Qualified electronics personnel or a W elch Allyn Service Center should repair products ...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 44 Appendix A Precautions and Safety Instructions Equipment Identification Labels and Markings Classification The International Electrotechnical Commission classifies electro-medical equipment according to its power source (external or...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 45 Electrical Installation Requirements The following requirements are necessary only when using the W elch Allyn OAE Hearing Screener in an AC-powered configuration. Grounding is not necessary in normal battery-powered use. Grounding ...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 47 Electromagnetic Immunity The REF 29400 Series OAE Hearing Screener is intended for use in the electromagnetic environment specified below. The customer or user of the REF 29400 Series OAE Hearing Screener should assure that it is us...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 49 b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m. Recommended Separation Distances Between Portable and Mobile RF Communications Equipment and the REF 29400 Series OAE Hearing Screener The REF ...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 52 Installation Verification Use the following list to verify all equipment is correctly installed before use. • Verify all equipment and cables are undamaged and in perfect working condition. • Verify all equipment and cables are conn...

Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E 53 INDEX A Abbreviations ..................................................5, 6 ASCII Link .........................................................40 AuDX Buttons ...................................................23 AuDX Load...........