KP6128 Hearing Aid Test System
The KP6128 Hearing Aid Test System is designed for electroacoustic performance testing of hearing aids in production and quality control environments. It measures key parameters under controlled acoustic conditions, supporting incoming inspection, production sampling, outgoing verification and test documentation.
- Standards Support: Designed to support selected IEC 60118, ANSI S3.22, ANSI/CTA-2051, GB/T 25102 and JJF 1201 related hearing aid electroacoustic test requirements
- Test Environment: Integrated with KP8583 anechoic box for controlled acoustic measurement
- 2CC Artificial Ear: KP6161F 2CC artificial ear / coupler assembly with HA-1, HA-2 and CIC couplers
- Measurement Functions: OSPL90, FOG50, reference test gain, frequency response, THD, equivalent input noise, attack / release time, battery current, telecoil output and delay time
- Frequency Range: 200 Hz – 8000 Hz
- SPL Range: Input 30–130 dBSPL; output 50–130 dBSPL
- Measurement Resolution: 0.1 dB
- Software Control: Dedicated hearing aid test software for curve display, test sequence control and automatic result calculation
Hearing Aid Test System Description
KP6128 Hearing Aid Test Systemwith KP8583 Anechoic Box and 2CC Artificial Ear
The KP6128 Hearing Aid Test System provides a complete solution for measuring the electroacoustic performance of hearing aids. The system combines a precision main unit, an anechoic test box (KP8583), and a 2CC artificial ear / coupler assembly to create a stable and repeatable measurement environment.
During testing, the sound source inside the anechoic box is calibrated to deliver specified sound pressure levels. The hearing aid microphone picks up the sound, amplifies it, and drives the receiver. The microphone inside the artificial ear captures the acoustic output, allowing the software to calculate key parameters such as OSPL90, FOG50, frequency response, distortion, and noise levels.
This system is suitable for production line sampling, incoming inspection, outgoing quality verification, and test reporting and electroacoustic documentation before delivery.
Technical Parameters
Acoustic Input – Test Microphone
| Item | Specification | Remark or Notes |
|---|---|---|
| Frequency Range | 200 Hz – 8000 Hz | – |
| Measurement Range | 30 dBSPL – 130 dBSPL (Z-weighted) | Microphone reference sensitivity -26 dBV/Pa |
| Resolution | 0.1 dB | – |
| Amplitude Error | ≤ ±1.0 dB (200 Hz–3 kHz); ≤ ±2.0 dB (3 kHz–8 kHz) | Relative to 1 kHz |
Acoustic Output – Test Sound Source
| Item | Specification | Remark or Notes |
|---|---|---|
| Frequency Range | 200 Hz – 8000 Hz (100 Hz interval) | – |
| Frequency Error | Better than 0.5% | – |
| Output SPL | 50 dBSPL – 130 dBSPL | – |
| Amplitude Error | ≤ ±1.5 dB (200 Hz–3 kHz); ≤ ±2.5 dB (3 kHz–8 kHz) | By comparison method |
| Total Harmonic Distortion | ≤ 1.0% at 70 dBSPL; ≤ 2.0% above 70 dBSPL and ≤90 dBSPL | From 200 Hz to 8 kHz |
Dynamic, Telecoil and Battery Measurement
| Item | Specification | Remark or Notes |
|---|---|---|
| Attack / Release Time | 50 ms – 5 s; accuracy ±10% or ±2 ms | Whichever is greater |
| Telecoil Output | MASL: 10 mA/m; ETLS: 31.6 mA/m | Magnetic field strength |
| Battery Current | 0.00 – 10.00 mA; accuracy ±5% of reading | Available current > 10 mA |
| Battery Voltage | 0 – 10 V; voltage error ±0.2 V (open circuit) | – |
Physical & Environmental
| Item | Specification | Remark or Notes |
|---|---|---|
| Main Unit Dimensions | 440 × 325 × 151 mm (W × D × H) | Approx. 8 kg |
| Anechoic Box (KP8583) | 345 × 300 × 260 mm (W × D × H) | Approx. 20 kg |
| Operating Temperature | 0 °C – 40 °C | – |
| Operating Humidity | 20% – 90% RH, non-condensing | – |
| Transport / Storage Temperature | -20 °C to 60 °C | – |
| Transport / Storage Humidity | 5% – 95% RH, non-condensing | – |
Professional Construction & Technical Precision
The KP6128 system integrates a high-precision test microphone, calibrated sound source, and 2CC artificial ear / coupler assembly within a controlled anechoic environment (KP8583). The main unit provides stable signal generation and high-resolution measurement (0.1 dB) with defined amplitude error limits. The software automatically calculates key electroacoustic parameters according to the selected test sequence.
The system supports production quality control, incoming inspection, outgoing verification and electroacoustic documentation workflows, helping manufacturers maintain consistent hearing aid performance before delivery.
Measurement Principle
Inside the anechoic box, the test microphone calibrates the sound source to generate specified sound pressure levels at selected frequencies. The hearing aid microphone receives the acoustic signal, amplifies it, and drives the receiver. The microphone inside the 2CC artificial ear / coupler assembly measures the acoustic output. The software then processes the data to calculate parameters such as OSPL90, FOG50, frequency response, total harmonic distortion, equivalent input noise, attack/release time, and telecoil performance.
Applications & Use Cases
This system is used by hearing aid manufacturers, quality assurance teams, and testing laboratories for production line quality control, incoming inspection, outgoing product verification, and electroacoustic performance evaluation.
Typical Applications:
- Production sampling and process control
- Supply chain and delivery quality assurance
- Electroacoustic performance verification
- Test reporting and electroacoustic documentation
Key Advantages
- Integrated anechoic box and 2CC artificial ear / coupler assembly for stable, repeatable measurements
- Supports selected international and national hearing aid electroacoustic test standards
- Comprehensive test functions including acoustic, telecoil, and battery parameters
- Defined amplitude error limits and 0.1 dB measurement resolution
- User-friendly software with automatic curve display and result calculation
- Suitable for production quality control and delivery verification workflows
Compliance & Regulatory Assurance
This system is designed to support electroacoustic performance testing of hearing aids in accordance with selected IEC 60118, ANSI S3.22, ANSI/CTA-2051 and GB/T 25102 related standards.
Metrological Integrity & Validation
- Regular verification of the test microphone, sound source and 2CC artificial ear / coupler assembly using a suitable acoustic calibrator is recommended.
- Periodic inspection and maintenance of the acoustic measurement chain helps ensure stable and repeatable test results.
- Proper care of the measurement system supports reliable performance evaluation and consistent documentation.
Technical Inquiry & Expert Support
KingPo offers the KP6128 Hearing Aid Test System for electroacoustic performance evaluation. Our engineering team can provide guidance on system setup, standard selection, and measurement procedures. For technical specifications or quotations, please contact us.
The Core Value We Deliver
- Professional electroacoustic testing platform for hearing aid production and quality assurance
- Supports selected international and national hearing aid test standards
- Integrated anechoic environment with high-resolution measurement capability
- Comprehensive functions covering acoustic, telecoil, and battery parameters
- Reliable and repeatable results for manufacturing and documentation needs
KP6128 Hearing Aid Test System Detail Display
KP6128 Hearing Aid Test System FAQs
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