Diagnostic Audiometer AD 229e

Features:

  • 125Hz - 8.000Hz
  • 2 independent oscillators
  • -10dB to 120dBHL Output
  • Air, Bone and Speech
  • Automatic Speech Scoring
  • WN, NB and SN Masking
  • Free Field Speech and Pure Tone
  • 5dB and 1dB Attenuators
  • Standard TDH39 Headset
  • Insert Phones (Optional)
  • Pure, Warble and Pulsed Tones
  • Automatic Threshold test
  • SISI and Bekesy Tests
  • OSHA automated test procedure (US edition only)
  • Stenger and ABLB Tests
  • Tone in Noise (Langenbeck)
  • 2 Channel Master Hearing Aid
  • Talk Forward, Talk Back
  • Built-in Monitor Speaker
  • DSP Technology
  • RS232 Connection for PC
  • PC On-line Monitoring Available
  • NOAH Compatible
  • Laser Printer Connection
  • Ink Jet Printer Connection (Optional)
  • Various Printing Options
  • Carrying Case (Optional)
  • Medically CE-Aproved
  • True RMS VU-Meter

Applications

The high quality of the AD229e makes it well suited for any stationary or portable application where diagnostic testing of air, bone and speech is performed. The time saving automatic test functions combined with the RS232 computer interface makes the AD229e ideal for modern healthcare environments.
The Talk Forward and Talk Back functions make it easy to work with the AD229e, especially with sound cabin installations.
When connected to an MT10/MTP10 Impedance system a complete diagnostic test set-up is available, including a thermal printer. Full NOAH compatibility completes the picture.

Master Hearing Aid

The AD229e has incorporated a 2 channel Master Hearing Aid for hearing aid simulation. The speech signal from the live voice microphone is transformed directly into digital signals, and all sound shaping filters thus work in the digital domain ensuring high sound quality. Filters and Acoustic Gain can be selected individually for each channel.

Auto Threshold and Békésy

The AD229e incorporates a facility for performing threshold determination automatically. The test procedure is based on the Hughson-Westlake method (up 5dB, down 10dB) and conforms to ISO 8253. Desired test frequencies may be selected freely by the user.
An automatic threshold procedure featuring thequick OSHA 1kHz test/retest validity function is available in the US edition.

The Békésy Test, featuring pure tone, pulsed tone or narrow band noise as stimuli as well as masking with narrow band noise as stimuli, is also incorporated. After testing the test results can be recalled from memory of the AD229e or transferred to a PC for database storage or printing. 

A buzzer is built in, allowing the operator to be informed about test status when doing automatic tests. 

ABLB / SISI / Stenger / Tone in Noise (Langenbeck)

As well as the pre-programmed ABLB and SISI tests, the AD229e can perform the Stenger Test with pure tones for evaluating malingering, or as a binaural speech test with a monophonic speech signal.
The Langenbeck "Tone in Noise" test is also included.

Speech and Free Field

Speech testing is easy to perform either as live voice or with pre-recorded material. An automatic speech scoring is available, and full patient communication and monitoring is provided. Various optional Free Field systems are available for testing with pure tones as well as with speech.

Portability

An optional robust carrying case will hold the AD229e with all its accessories.

Available Software

A variety of software for PC is available:

National software may be available in addition to the above mentioned possibilities. Please consult your local Audiometrics representative for details.

Technical Specifications

Safety Standard: EN 60601-1.

Audiometer Standard: Tone: EN 60645-1, ANSI S3.6, Type 2. Speech: EN 60645-2, ANSI S3.6, type B or B-E.

Medical CE-mark: Approved for Medical CE Marking by TÜV. Identification No. 0123.

Calibration: AC: ISO 389-1 (TDH39), ISO 389-2 (EARTone 3A). BC: ISO 389-3.

Frequencies: 125, 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000, and 8000 Hz.

Intensities: -10 to 120 dB HL in 1 dB and 5 dB steps. (max. 90dB at 125 Hz and max. 110dB at 250 Hz and 8KHz.

Extended Range Function: If not selected, the AC output will be limited to 20dB below maximum output.

Input: Tone, Warble Tone  +5%, 5Hz (true sine wave frequency modulation).

Masking stimulus: Automatic selection of Narrow Band Noise (or White Noise) for tone presentation and Speech Noise for speech presentation. .

Outputs: Left, Right, Bone L+R, Insert Phones, Insert Masking, FF1, FF2.

Transducers: TDH39 Audiometric Headset, EAR-Tone 3A Insert Phones (optional), HDA200 Audiometric Headset (optional), B71 Bone Conductor.

Communication: Talk Forward: 0-110 dB SPL continuously adjustable on operation panel. Talk Back: Microphone input and level adjustment on operation panel. Monitor: Output of tape or CD through built-in speaker or external earphone or speaker.

Tone Presentation: Manual or Reverse. Single pulse. Multiple pulses 250-5000 msec. on/off.

Auto Threshold: Patient controlled Hughson Westlake procedure according to ISO 8253-1 or OSHA procedure with automatic re-check (US edition only).

Frequency Selection:125Hz, 250Hz, 750Hz, 1500Hz or 8kHz may freely be deselected if a quicker test routine is desired.

Synchronous Masking: Locks channel 2 attenuator to channel 1 attenuator.

Store Function: Internal memory for AC L/R and BC L/R and full speech curve.

Tests: 
SISI with auto score calculation (5dB included for familiarisation).
ABLB.
Stenger (Binaural pure tone stimulation).
Stenger Speech (Binaural speech test with monophonic signal).
Langenbeck (tone in noise).
2 channel Master Hearing Aid. Both channels operate independently with Gain and Filter settings.
Békésy Test: Pure tone or narrow band stimulation. Fixed Frequency. Continuous or pulsed tone. 2 channel speech: Input for 2 channel prerecorded material.

Display: Alfa-Numerical Display.

Patient Signal: Reed switch push button.

Interface: Bi-directional RS232C, Output for MTP10 Printer. Output for laser printer with HP GL/2 language. Output for Ink Jet or Matrix printer using IBM mode (optional)

Examples of Compatible Windows Software: IaBase95 database program. Printview for on-line  PC monitoring and printing. NOAH hearing aid fitting software. CONNEX hearing aid fitting software. PAX hearing aid fitting software.
In addition to these examples of software, additional software might be available in your area. Please consult your  Audiometrics representative for details.

Construction: Plastic cabinet.

Attenuator controls: Rotary switches (Push buttons optional)

Power Supply: External UPS200 (included).100 - 240V.

Consumption: 40 VA

Dimensions: (W x D x H) 345 x 255 x 100 mm / 14 x 10 x 4 inches.

Weight:1.8 kg / 4.0 lbs. (external power supply UPS200 + 0.6kg / 1.3 lbs.)

 Included Parts:

Optional Parts:

 

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