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DIAGNOSTIC AUDIOMETER

DIAGNOSTIC AUDIOMETER
DIAGNOSTIC AUDIOMETER
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    Product Specifications
    • ENT Surgical Instrument
    Product Description

    DIAGNOSTIC AUDIOMETER

    CHANNELS

    Two separate channels : one for stimulus and one for masking.

    FREQUENCIES

    Air, free field : 125-250-500-750-1000-1500-2000-3000-4000-6000-8000 Hz.

    Bone : 250-500-750-1000-1500-2000-3000-4000-6000-8000 Hz.

    ATTENUTOR RANGE

    -10 to 120 db steps with range extender function. fully clickfree operation over entire range.

    HEARING LEVEL RANGE

    Maximum output is limited by transducer capacity. Typical values for air : Max 120 db HL at 500-6000 Hz.

    Bone : 70 db HL at 500-4000 Hz

    EXTERNAL INPUTS

    Microphone : Dynamic, for speech audiometry and patient communication.

    Patient Mic : Dynamic

    Tape/CD 1 : stimulus channel, sensitivity 0.1-3.0 vrms, 47 k0hm.

    Tape/CD 2 : Masking channel, sensitivity 0.1-3.0 vrms, 47 kohm.

    OUTPUTS : 

    Phones : Air conduction

    Bone : Bone condition

    insert masking : insert phone

    F.F : free filed loudspeaker via external amplifier. output voltage : max.3 vrms. 

                                                                                 output load : max.5mA    

    TECHNICAL SPECIFICATION STANDARD FUNCTIONS

    Speech audiometry : stimulus via microphone or tape/CD1

    Masking : white noise, speech noise or narrow band.

    Tone : Tone duration is controlled manually.

    Pulsing rate : user-programmable (range : 1.5-3.5 Hz)

    Warble : Frequency modulation +-5%

    Left/right shift : Automatic switching of all selected parameters from left to right channel and vice versa.

    Hearing level lock : Locking of masking level to stimulus level at any preselected  interval.

    SPECIAL FUNCTIONS

    SISI Test : Display shows presentation counter. patient score counter with current score percent constantly indicated increments of 1 to 5 db interrupt/reset function lnitiated by tone switch.

    Flower Test (ABLB) : Alternate binaural loudness balance test.

    Stenger Test : Binaural tone stimulation

    USER FUNCTION

    User setups are stored in a non-volatile memory (EEPROM)

    COMMUNICATION AND MONITORING

      Built in talk-over with individually adjustable monitoring. visible patient response (LED indicator) supplemented by audible patient response with a separate level control via monitor headset LED bar-graph V.U. meter provides visual indication of stimulus level as well as displaying level for sensitivity adjustment of microphone/Tape/CD input signals.

    DISPLAY

    Alphanumeric transreflective LCD2 rows of 40 characters. screen dimensions 155*16 mm. LED backlighting.

    DISTORTION

    Less than 1% (T.H.D)

    ACCURACY

    Frequency : Better than +-2%

    Hearing level electrical : Within +-1% db of indication

    Acoustical : Within +-3 db of indication

    CALIBRATION

    AIRIEC645/ANSI3.6-1996

    BONEISO7556-1987/ANSIS.3.26-1981

    Calibration data are stored in a programmable non-volatile memory.

    POWER SUPPLY

    230V AC 50Hz +-10%

    POWER CONSUMPTION

    25VA Approximately 

    OPERATING ENVIRONMENT

    Temperature : 15-50c

    Relative humidity : 30-90%

    CONSTRUCTION

    Aluminium light weight, Non-corrosive

    DIMENSIONS & WEIGHT

    (400*330*135)mm. 5kg Approx. Without carrying case.

    STANDARD ACCESSSORIES

    head set, bone conductor with headband patient response hand switch RS 232 C Data interface, dust cover, audiogram pad, 1 blue and 1 red pen. operation manual

    OPTIONAL ACCESSORIES

    Free-filed loudspeakers, amplifier and speech units. patient talk-back microphone monitor handset. 

    Trade Information
    • Cash Advance (CA)
    • Contact us for information regarding our sample policy
    • All India
    Contact Us

    Happy Home, 1st floor, B/H RMC, Kanak Road, 23, Karanpara, Rajkot, Gujarat, 360001, India
    Phone :91-281-2232871