Products

Production Description

The QA700/QA700+ is a clinical audiometer offering all necessary air and bone conduction test capabilities with masking. It offers a range of test features such as Pure-tone, Speech, Hughson Westlake auto test, SISI, Stenger and ABLB(QA700+ Only).

Operation is simple and intuitive. The buttons indicator lights and screen clearly show the device’s current setting contain sound level, frequency, transducer, signal type, audiogram, channel and so on. The ergonomic design is exceptional with a high resolution 7-inch color display that presents crystal clear images for easy to read audiograms. The device has various user-defined settings which enable you to acclimate quickly without losing efficiency or speed.

QA700/QA700+ support standalone mode to monitor of test results, data storage and printing

or connects to PCs running Management Software for more functions such as data sync, data export, diagnosis and printing template modification.

Intended Use

The QA700/QA700+ clinical audiometer is designed to be a device for diagnosing hearing loss.

Features at a Glace

Large 7″ high resolution color display.

Standalone or PC-based operating.

Hospital data system interface by HL7, SQL, FTP.

Compact and Ergonomic design.

Tone Audiometry

Air and Bone conduction testing (HL, MCL&UCL.)

Pure-tone, Warble, Pulse and Masking Noise.

Easy switch to 1,2 or 5dB steps.

-10 to 120dB HL range.

PTA calculation.

Speech Audiometry

Built-in word lists.(QA700+ Only)

External CD/MP3 presentations.

Microphone for live voice speech.(QA700+ Only)

SRT and WRS calculation.

Monitoring and communication.(QA700+ Only)

Special Tests(QA700+ Only)

Hughson Westlake auto test.

SISI.

ABLB.

Stenger.

Technical Specification

PARAMETER SPECIFICATION
External Signal(CD) 0.016 to 0.5 Vrms
Patient communication Patient Response Switch (one push button)

Talk Forward (via Machine MIC)

Talk Back (via patient MIC)

Display 7-inch (1024×600) color display
Internal storage 60000 Audiograms(QA700)/10000 Audiograms(QA700+ Only)
Operating mode Stand alone

PC-based (via Computer Management and Diagnostic Software)

Hospital Database HL7, SQL, FTP interface or Local export PDF/PNG/XML/JSON format.
Data Interaction and Peripherals 1 x USB B for PC connection,

3 x USB A for printer,

keyboard or mouse.

Weight 1.4kg
Power supply 100 – 240VAC, 50/60Hz, 12VDC-max 1 A
Warm-up time Approx. 1 minute
Dimensions (LxWxH) 343x270x92mm
Audiometer Standards Type 2, clinical audiometer
Functions Speech (external CD, internal word lists or live voice speech by MIC)

Hughson Westlake Auto test (user-defined method and timing) Suprathreshold test including Stenger, ABLB, SISI, HL, MCL, UCL

Transducers Air (TDH39 Headband Static Force 4.5N±0.5N)

Bone(B71 Headband Static Force 5.4N±0.5N)

Free Field (Optional)

Insert earphone (Optional)

Stimulus Pure Tone 125-8000Hz

Warble Tone 5Hz sine +/- 5% modulation

Pulse Tone Multiple pulses 250ms on, 250ms off

Single or Continuous press sound mode

Masking Signal Narrow band noise

White noise(QA700+ Only)

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

Frequency Range 125Hz to 8kHz

125Hz, 250Hz, 500Hz, 750Hz, 1 kHz, 1.5kHz, 2kHz, 3kHz, 4kHz, 6kHz or 8kHz be deselected freely.

Accuracy better than±0.1%

Intensity AC: -10 to 120 dB HL

BC: -10 to 70 dB

Available Intensity Steps is 1, 2 or 5dB

Extended range function: If not activated, the Air Conduction output will be limited to 20 dB below maximum output.

Calculation Method Tone Test: PTA (WHO or ANSI standard)

Speech scoring: SRT, WRS

Print Design print page information

Direct printout by USB connection to printer

Testing Setting Offer extensive configuration options and support saving
Calibration Accuracy +-0.1 dB, Calibration information and instructions is located in the Service manual
Signal lndicator (VU) Time weighting: 300ms

Dynamic range: 23dB

Rectifier characteristics:

Selectable input are provided with an attenuator by which the level can be adjusted to the indicator reference position(0dB)

 

Standard Configuration

Air conductor headset

Bone conductor headset

Patient response button

Audiometric computer management software

Monitor headset and patient MIC

Power adapter and cable

Operation manual

Warranty card

Monitoring headset(QA700+ Only)

Patient talk back microphone(QA700+ Only)

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