House of Hearing

Hearing Instrument Testing
The hearing instrument testing module (HIT440) provides technical verification of all types of hearing aids. The system includes IEC and ANSI standards, but you can add your own tests if required.

hit440-thumb1 Built-in test sequences
The HIT440 contains a number of built-in test sequences based on IEC and ANSI standards. This means the system is ready to go when you receive it.

Customization
You can customize HIT440 to suit your personal needs. Include new tests, enter data for new hearing aid models and save settings as new test flows.

Endless loop testing
For aids with suspected intermittent faults you can set up a sequence of tests, specifying tolerances for each, and run the sequence in an endless loop until a tolerance is overstepped.

Compatibility with TBS25
HIT440 also supports the external test chamber TBS25 for situations where attenuation greater than the built-in Affinity 2.0 test chamber is required.

Hearing Instrument Testing

Tests all types of hearing aids
Customizable workflow
Telecoil testing
Design your own printouts and reports

SPECIFICATIONS

Hearing Aid Analyzer

EN 60118-0, EN 60118-7, ANSI S3.22.

Stimulus Signal

Warble Tone, Pure Tone, Random noise, Pseudo random noise, Band limited white noise, Chirp, ICRA, Real Speech, any other sound file (automatic calibration available).

Stimulation Intensity Range

40-100 dB SPL in 1 dB steps

Intensity accuracy

± 1.5 % dB

Stimulus Distortion

Less than 1 % THD

Sweep Speed

1.5 – 12 sec

Coupler Microphone Ranges

40-145dB

Frequency Accuracy

± 1%

FF Loudspeaker Output

Max 6 W into 8ohms, max 10 W into 4 ohms.

Telecoil drive in Test box

10 – 100 mA/meter

Battery Simulator

Standard types are selectable, Custom types within 1.1 – 1.6 V, 0 – 25 Ohm range.

Frequency Range

100-10000Hz.

Frequency Resolution

1/3, 1/6, 1/12 and 1/24 octave or 1024 point FFT.

Test box

Built-in test box holds telecoil drive as well as special dual speaker set for checking directional microphone function.

Pre-Programmed Protocols

HIT module comes with a set of Test Protocols loaded. Additional Test Protocols can be designed by user, or easily imported into the system.

Compatible Software

NOAH 3, OtoAccess™

Available tests

IEC118, ANSI 3.22, Custom – OSPL90 – Full On Gain – Input/Output – Attack/Recovery Time – Reference Test Gain – Frequency Response – Equivalent Input Noise – Harmonic Distortion – Intermodulation Distortion – Battery Current Drain/Battery Life Time – Microphone Directionality – Coil Frequency Response – Coil Harmonic Distortion – Coil Full-On Gain Response

Included parts

Affinity2.0 HIT440 CD
OtoAccess™ database CD
2CC coupler with microphone and adaptors for
ITE, BTE and Body Style HA
Coupler seal wax
Reference Microphone
Standard USB Cable
Power Cable 120 or 230V
Mouse pad
Operation and Multilingual CE Manual

Optional parts

Battery Adapters BAA675, BAA13, BAA312, BAA10, BAA5
Couplers 1.2CC and 0.6CC: ITE, BTE,
Body Ear Simulator
TBS25M External Test Chamber incl. cables.
ACC60 Affinity2.0 carrying Case
Calibration Adaptor
UCO15 Optical USB Extension Cable

Other specifications

– Affinity 2.0 specification
– TBS25 specification

Hearing Instruments Testing Module

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