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FONIX FP35
®
Hearing Aid Analyzer
Operator’s Manual
Ver. 4.00
Ver. 4.00: 5/12/08 ©2008 Frye Electronics, Inc.
All rights reserved
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Table of Contents iii Contents Chapter 1: An Overview of the FP35 1.1 A Guide to Using this Manual.......................................................................... 2 1.2 Layout, Controls, & Safety ............................................................................. 2 1.2 .1 Lamps and LCD................................................................................. 2 1.2.2 Front panel layout ...............................................................................
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iv FONIX FP35 Hearing Aid Analyzer 2.5.1.1 Delay Settings............................................................................ 35 2.5.1.2 Harmonic Distortion ..................................................................... 35 2.5.1.3 Noise Reduction......................................................................... 36 2.5.1.4 Warble Rates ............................................................................ 36 2.5.1.5 Adjusting the Signal Skew............................
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Table of Contents v 3.6 CIC Option ........................................................................................... 73 3.7 OES Option ........................................................................................... 74 3.8 Advanced Testing..................................................................................... 76 3.8.1 Testing Digital Hearing Aids ..................................................................... 76 3.8.2 Testing Directional Hearing Aids ..
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vi FONIX FP35 Hearing Aid Analyzer 5.2.5 Placing the Sound Field Speaker .............................................................. 116 5.2.6 Leveling the Sound Field Speaker............................................................. 116 5.2.7 Testing Digital Aids ............................................................................ 118 5.2.8 Testing Body Aids.............................................................................. 118 5.3 Audiogram Entry Screen—Creating A
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Table of Contents vii 5.9 CROS, and BICROS .................................................................................. 162 5.9.1 Measuring the Head-Baffle Effect.............................................................. 162 5.9.2. Measuring the Overcoming of the Head-Baffle Effect.......................................... 163 5.9.2.1 CROS ................................................................................... 163 5.9.2.2 BI-CROS..........................................
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Chapter 1 1 An Overview of the FP35 Welcome to the FONIX FP35 analyzer! The FONIX FP35 provides quick, accu- rate information about how well a hearing aid works. It uses a graphical display or numerical table to show how much amplification the aid provides, which fre- quencies it amplifies, and how much distortion is creates. The FP35 hearing aid analyzer is a lightweight instrument notable for its ease of use. It has an intuitive interface to lead novice users through the process of hearing
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2 FONIX FP35 Hearing Aid Analyzer 1 . 1 A Guide to Using this Manual The FP35 is easy to use. You can begin testing right away, and, if you do happen to get stuck, the pop-up help menus will guide you through what to do next. In addition, this manual contains detailed instructions and information about all the different testing capabilities and options that the FP35 gives you. The FP35 Operator’s Manual follows a logical, sequential order and is meant to be read in order. If you come across
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An Overview of the FP35 3 Figure 1.2.1—FP35 front panel 1 .2 .2 Front panel layout The front panel of the FP35 analyzer consists of 8 function keys, 4 arrow keys, and 9 other keys with varying operations. Together, these keys are used to con- trol all the operations of the FP35 analyzer. Function Keys: There are five “function keys” located just below the FP35’s front panel, labeled [F1] through [F5]. The function of these keys change from screen to screen, according to the need of the scr
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4 FONIX FP35 Hearing Aid Analyzer [NEXT] [BACK] Moves back and forth between screens that are in a sequenc- es. Examples include menus and the real-ear measurement screens. [∧, ∨] Moves the cursor up and down in a menu screen and in the Audiogram Entry screen. Adjusts the level of the source ampli- tude in a measurement screen. [< , >] Cycles through available menu choices, adjusts the frequency selection in a single tone measurement, and adjusts the ampli- tude levels in an audiogram in t
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An Overview of the FP35 5 Video Connects to an external monitor (optional). Earphone Connects an insert earphone to the FP35 in order to perform RECD or audiometric measurements. It can also be used to connect a Telewand or telecoil board for telecoil measurements. Speaker Connects an external sound field speaker or external sound chamber to the FP35 analyzer. Can also be used to connect an external telecoil board or Telewand (new rear panel only) Contrast Changes the contrast of the LCD dis
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6 FONIX FP35 Hearing Aid Analyzer 1 .3 Accessories 1 .3 . 1 Standard Accessories HA-1 2-cc Coupler Dimensions per requirements of ANSI S3.7 for testing in-the-ear hearing aids HA-2 2-cc Coupler Dimensions per requirements of ANSI S3.7 for testing ear level, eyeglass and body aids Ear-Level (BTE) Adapter Snaps into the 1/4 in (6.35 mm) diam- eter cavity in the HA-2 2-cc coupler. Equipped with a 0.6 in (15 mm) length of 0.076 in (1.93 mm) ID tubing, the adapter allows ANSI S3.22 specifi
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An Overview of the FP35 7 Coupler-only Microphone Shipped with all units that do not have the Real-Ear Option. See optional acces- sories list for a sound chamber-only two microphone setup. Microphone Adapter 14 mm to 1-inch diameter microphone size. Couples the microphone to a cali- brator. Other Standard Accessories • Standard External P ower Supply • R oll of P aper • Operator’s Manual • F un- T ak • RS232 Cable 1 .3 .2 Real-Ear Option Accessories Probe Microphone Probe an
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8 FONIX FP35 Hearing Aid Analyzer Wedge Style Earhook Standard size. Holds probe and refer- ence microphones during real-ear test- ing. Improved design eliminates need for Velcro headband. Other Real-Ear Option Accessories: • Probe Calibration Adapter—Provides a means of coupling the probe micro- phone to a calibrator. • Calibration Clip—Used to couple the probe and reference microphones together for calibration purposes. • Extension Pole—This extra pole (6 1/2” long), lets you use two differ
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An Overview of the FP35 9 External Monitor Option Used for the external display of the FP35 analyzer. Requires the external monitor option. Quest QC-10 Sound Level Calibrator For calibration of microphone amplifier; operates at 1000 Hz at a level of 114 dB SPL. Swing Arm Speaker Gives you a wide range of speaker-posi- tion angles and heights to work with when testing in real ear. Medical Grade External Power Supply For the FP35 to qualify as a medical grade unit, all connections must b
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10 FONIX FP35 Hearing Aid Analyzer Child Size Wedge Style Earhook Holds probe and reference microphones during real-ear testing. Infant Headband Package Used for performing real-ear measure- ments on infants and small children. Includes infant, child, and adult head- bands, six flexible ear hooks, and two sets of “animal ears.” Single Insert Earphone (RECD) Consists of one ER3A earphone with a phono plug, a 72 inch cable, an assort- ment of ear tips, a calibration certificate, and a lape
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An Overview of the FP35 11 Dual Insert Earphones Y Cable 3.5 mm stereo phone plug to 1/4” phone jack. Connects dual insert earphone to FP35. Included with the Dual Insert Earphone Option. Two Microphone System This two microphone setup can be ordered for sound chamber-only FP35 analyzers in order to enable testing with a reference microphone. Earphone Calibration Adapter Connects the Insert Earphone to the HA- 2 coupler. Included with the Audiometer Option. Open Fit Coupler Non-stand
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12 FONIX FP35 Hearing Aid Analyzer Telewand Allows the measurement of telecoil per ANSI S3.22-1996 and ANSI S3.22-2003. Also allows real-ear telecoil measure- ments. Telecoil Board Allows the measurement of telecoil in sound chamber measurements. External Sound Chamber Connect the FP35 analyzer to an external sound chamber for better sound isolation and positioning. Sound chamber models 6040 and 6050 can be used. 1 . 4 Optional Features for the FP35 Real-time Testing: The Composite/Dig
